35results about How to "Normal operation will not affect" patented technology

The invention relates to a non-return device of a coal loading conveyor belt. The non-return device is arranged above the conveyor belt; rolling wheels which are connected with a motor are arranged under the conveyor belt; the rolling wheels drive the conveyor belt to rotate up and down, and a conveyor belt support is also arranged under the conveyor belt. The non-return device comprises a baffle plate support, a steel baffle plate, an electromagnet and a controller, wherein the baffle plate support is arranged at two sides of the conveyor belt and is vertical to the surface of the conveyor belt; the electromagnet is arranged at the top end of the baffle plate support; the steel baffle plate is sucked by the electromagnet and is enabled to be positioned at the top end of the baffle plate support when the electromagnet is powered on; the steel plate falls onto the conveyor belt to intercept coal sheet on the conveyor belt when the electromagnet is powered off, and the controller is arranged on the conveyor belt support and controls the powering on and off of the electromagnet. Compared with the prior art, the non-return device has the advantages that the structure is simple, the reaction is sensitive, the use is convenient, the hidden danger that equipment is damaged as an electric apparatus is in failure can be effectively avoided, the service life of the equipment is prolonged, and the labor intensity and the time for cleaning the rolling wheels can be reduced.

The invention discloses a multi-variety material mixed packaging production line and a control method, and belongs to the field of food packaging. The multi-variety material mixed packaging productionline comprises a control unit, a transportation unit, a feeding unit, a recovery unit and a packaging unit; the control unit comprises a controller; the transportation unit comprises a front flexiblechain conveying unit, a rear lifting unit and a bowl turning mechanism which are sequentially arranged in a material flow direction of the multi-variety material mixed packaging production line; thebowl turning mechanism comprises a clamping assembly, a bowl turning assembly and a bowl and material separating assembly; the bowl and material separating assembly comprises a bowl outlet and a material outlet; the bowl outlet is in butted joint with an inlet of the recovery unit; the material outlet is in butted joint with an inlet of the packaging unit; and an outlet of the recovery unit is inbutted joint with an inlet of the front flexible chain conveying unit. According to the multi-variety material mixed packaging production line and the control method, materials are conveyed through independent material bowls, so that the material bowls can be treated at any time, and the multi-variety material mixed packaging production line is not stopped in a treatment process, so that the production efficiency is capable of being improved.

The invention discloses an artificial leather boiler heat-conducting oil on-line detergent and a preparation method thereof. The detergent is prepared from the following raw materials in percentage by weight: CNOOC 150SN, base oil, dialkenyl succinimide, polyisobutenyl succinimide, high-molecular-weight succinimide, high-molecular-weight phenolic antioxidant, octyl / butyl diphenylamine antioxidant and defoaming agent. The detergent implements non-shutdown on-line cleaning in deed, has the advantages of low addition amount and more obvious cleaning effect, can dissolve the solid oil coke, can improve the heat conductivity and can lower the energy consumption, and the cleaning efficiency is up to higher than 98%. The detergent has the characteristics of mild cleaning property and high operational safety, does not influence the normal operation of the system, and does not have the phenomenon of tube blockage by dirt.

The invention discloses a service switching method, device and system for a local area network. The method comprises the steps of: previously loading a server program executing a service to at least two client devices in the local area network respectively, monitoring the running state of the server program on the client devices, and determining whether the server program on the client device executing the service currently runs normally; when determining that the server program on the client device executing the service currently runs abnormally, switching the client device executing the service, and starting, by the client device running normally in the local area network, the server program on the client device to execute the service. According to the technical solution, the server program executing a service is loaded to the at least two client devices in the local area network respectively and the service is dynamically switched, so that normal running of the service is ensured and the service is not influenced by failure of a single server. Besides, expensive server equipment does not need to be purchased, so that the capital input is reduced.

The present invention relates to the technical field of oil-impregnated bearings, and provides an oil-impregnated bearing chamfering device, comprising: a conveying device for conveying oil-impregnated bearings; a pushing device for sequentially receiving oil-impregnated bearings in the conveying device and pushing out the oil-impregnated bearings; a second cylinder, Push the oily bearing on the pushing device into the placement tube on the lifting device; the placement tube is driven up and down by the lifting device to transfer the oily bearing to the shaft; the first cylinder pushes the oily bearing on the placement tube into the shaft to realize Clamping; the rotating shaft is driven by the motor to rotate, and the oily bearing is chamfered under the action of the turning tool; the component is pushed to push the processed oily bearing, so that the oily bearing falls off from the rotating shaft. The invention replaces the traditional manual operation and realizes fully automatic production, which not only improves the work efficiency, but also reduces the cost.

The invention discloses a DC deicing system and method of a connection-segment overhead line system of a parking lot of urban rails. The deicing system comprises a wire inlet switchgear, a DC deicing device and a DC deicing changeover switch, the wire inlet switchgear comprises an inlet wire harness splitting switch and a disconnecting switch, the disconnecting switch is connected between the input end of the DC deicing device and a bus, the inlet wire harness splitting switch is connected between the overhead line system and the bus, and the output end of the DC deicing device is connected to the overhead line system via the DC deicing changeover switch. According to the deicing method, the DC deicing changeover switch selects an icing overhead line system to form a deicing loop, the DC deicing device is used to deice the overhead line system in the deicing loop, and composition of the deicing loop can be flexibly switched. According to the deicing system and method, composition is simple, the engineering and application cost is low, the operationality is high, and the difficulty in deicing of the complex overhead line system is overcome.

The invention discloses a lightning arrester. Due to the isolation effect of the series pseudo-spark gap formed by the upper hollow electrode, the middle electrode and the lower hollow electrode arranged at intervals along the axis, the zinc oxide resistance sheet bears a small continuous power frequency when the line is in normal operation. Voltage, when the resistor sheet deteriorates, it will not affect the normal operation of the line. When the line is struck by lightning, the pseudo spark gap will break down, the zinc oxide valve will be turned on, and the current will be introduced into the ground to limit the voltage at both ends of the insulator. And the normal work of the wires can effectively improve the stability of the power supply of the distribution network system under the lightning disaster. The present invention connects the pseudo-spark gap and the zinc oxide valve piece in series as a whole and built it in the sheath sheath. The closed pseudo-spark gap , the discharge voltage is stable, and the reliability is high. In addition, compared with the air gap, the pseudo-spark gap has stronger arc extinguishing ability, faster action, and stronger flow capacity; compared with the vacuum gap, the pseudo-spark gap has smaller ablation.

The invention discloses an automatic management method of an AC cluster, which is characterized in that a reverse encryption tunnel is established between the LAC and the cloud MAC in the way of managing the AC through the cloud, and the LAC is uniformly managed and configured on the MAC, and according to the pre-configured The settings on the MAC automatically manage the configuration of the delivered LAC. This solution can effectively reduce management labor and time costs, improve AC management efficiency, reduce AC management burden, and quickly build a large-scale wireless network.

The invention discloses a bag body filling system. The bag body filling system comprises a control component and a detection component used for detecting whether bag bodies are normal or not. The detection component comprises a first detection piece used for detecting a fixture, a second detection piece used for detecting connectors, corresponding to the fixture, of each bag body and a third detection piece used for detecting a film, corresponding to the fixture, of each bag body, and the first detection piece, the second detection piece and the third detection piece are all installed between a bag-making station and a filling station and connected with the control component. The invention further discloses a filling method. In the process of transmitting the bag bodies between the bag-making station and the filling station, within the time that the first detection piece continuously detects the fixture, the second detection piece and the third detection piece conduct counting on the joints and the bag films respectively and transmit the counting results to the control component, and the control component judges whether the clamped bag bodies are abnormal or not according to the number of the joints and the number of the bag films. The bag body filling system and the method have the beneficial effect of being capable of precisely judging whether the bag bodies are abnormal or not in an online manner.

The invention discloses a nuclear power station backup disk control device test system comprising a state feedback lamp which is used for indicating the start or stop state of a backup disk control device; and a signal processing unit which is used for controlling the working state of the state feedback lamp according to a start command or a stop command sent by a backup disk in a backup disk test mode, and the signal processing unit is arranged in a control logic machine cabinet of the backup disk. The invention also provides a nuclear power station backup disk control device test method. Normal operation of a nuclear power station is not influenced by the nuclear power station backup disk control device test system and method.

The invention discloses a decompression device capable of reducing cavitation damage, a valve structure and a method, and belongs to the field of industrial valve design. The decompression device includes an outer shell, a sealing cover and a decompression shaft; the partition plate separates the internal chamber into a first flow channel cavity and a second flow channel cavity. The first flow path cavity communicates with the cavitation area in the valve of the target valve, so that the fluid flowing into the target valve from the outlet of the second pipeline can flush the cavitation area; the second flow path cavity is used to connect with the inlet of the target valve The tube is connected; a decompression shaft that can move up and down is coaxially provided in the inner chamber. When the decompression shaft is in the initial state, the second protrusion can close the second through hole, and the first protrusion can close the second through hole. The above through hole is closed; when the decompression shaft moves upward, both the second through hole and the through hole are in an open state. The invention can assist in reducing the cavitation of the valve and the cavitation damage of key components, thereby reducing the number of operation and maintenance of the valve and saving the operation and maintenance cost.

A sensor installation device for on-line monitoring of power transformer insulation relates to a sensor installation device for on-line monitoring of transformer insulation, which solves the problem that the on-line monitoring sensor must be pre-installed during the transformer manufacturing process or can only be installed after the transformer is powered off and insulating oil is released. The technical scheme of the invention includes a base, a movable probe, an end cover and an oil-resistant sealing ring. One end of the base is fixed on the oil discharge valve of the power transformer; the movable probe is a T-shaped cylinder, and one end of the T-shaped cylinder is fixed on the end surface of the cylinder of the base and sealed by an oil-resistant sealing ring. The other end of the body passes through the through hole in the base. The arithmetic average deviation Ra of the surface roughness parameter profile of the cylinder end surface of the base and the annular groove on the cylinder end surface and the outer surface of the movable probe is 1.25-3.2 μm. The invention can quickly install the insulation on-line monitoring sensor under the normal operation or power failure state of the power transformer, so as to avoid the leakage of insulating oil during the installation process.

The invention discloses a soil equivalent resistance model modeling method which combines multiple and multi-point actual measurement data of a power grid with simulation modeling calculation. Its characteristic is to improve the existing soil equivalent resistance model building method by using a hybrid modeling method combining measured data and simulation calculations. For any circuit of the AC line between the two substations, multiple multi-point measurements are made on the AC grid to obtain multiple sets of DC current distribution data at the neutral points of the main transformers of each substation within the modeling range, and through simulation calculations and inversion methods Construct the soil equivalent resistance model. The invention does not need to collect detailed soil parameters, has high calculation accuracy, overcomes the problem that it is difficult to accurately establish a non-uniform layered soil model in the previous method, and is suitable for accurately calculating the distribution of DC current in an AC system when the soil composition is complex.

The invention discloses a heavy wind-resistant expandable cable-tower wind driven generator, which comprises a fan impeller, a fan hub, a fan cabin, a fan tower barrel, a base ring, a fan foundation and a plurality of cable devices, wherein the fan impeller is connected with the cabin through the hub; the cabin is arranged on the top of the fan tower barrel; the fan tower barrel is connected withthe fan foundation through the base ring; and the cable devices are uniformly arranged around the periphery of the fan tower barrel and are connected with the base ring through the fan tower barrel respectively. Cables are retracted under normal running condition, so that normal operation of a fan is not influenced. In case of heavy wind, the fan generally needs braking and stopping, so that the heavy wind resistance of the fan tower barrel can be enhanced remarkably by expanding cable structures. Calculation performed on a sample machine indicates that indexes such as horizontal displacementof the expandable cable-tower fan hub, the equivalent stress value of the bottom surface of the tower barrel, the least single-pile axial force change amplitudes of a high-stress area and a windward surface and the like are remarkably smaller than those of the conventional tower barrel fan.

The invention discloses a power supply device for power-free returning of an alternating current-direct current transmission locomotive and a power supply control method. The device comprises an excitation control branch and a power supply output branch, wherein the excitation control branch comprises a storage battery power source module and a direct current chopping voltage reduction module which are connected with each other, voltage output by the storage battery power source module passes through the direct current chopping voltage reduction module and becomes excitation voltage, and the excitation voltage is provided for a direct current motor excitation winding; the power supply output branch comprises an inverter model and an alternating current processing module which are connected with each other, direct current output by a traction motor is fed into the inverter module and inverted into alternating current, the alternating current passes through the alternating current processing module, and then power supply voltage is output; and the input end of the excitation control branch is connected with the output end of the power supply output branch through a rectification voltage transformation module, and thus the storage battery power source module is charged. According to the method, power supply control is achieved by controlling the excitation control branch and the power supply output branch. The power supply device can achieve power supply for power-free returning of the alternating current-direct current transmission locomotive and has the advantages of simple structure, low required cost, changelessness of the locomotive structure, flexible application and the like.

The invention discloses a six-degree-of-freedom motion platform. The six-degree-of-freedom motion platform comprises electric push rods, a top platform, a connecting seat, a bottom supporting table and a lifting hook mechanism. The six electric push rods are installed on the surface of the top of the bottom supporting table through hinge seats, and the tops of the electric push rods are fixedly connected with the bottom of the top platform through hinge seats. The connecting seat is fixed to the middle position of the top surface of the bottom supporting table, a through hole is formed in thecenter of the top platform, and the lifting hook mechanism penetrates through the through hole to be fixedly connected with the connecting seat. The lifting hook mechanism is composed of a connectingrod and a lifting hook, the lifting hook is welded and fixed to the top of the connecting rod, and threads are formed in the surface of the lower part of the connecting rod. The connecting seat is composed of a connecting seat body and a connecting sleeve. According to the six-degree-of-freedom motion platform, auxiliary hoisting is carried out through the lifting hook mechanism and the connectingseat, the weight of the device is borne by the bottom supporting table, the electric push rods do not bear tension any more, and therefore the situation that the electric push rods are pulled to be damaged is avoided.