37results about How to "Failure will not" patented technology

The invention discloses a thermoelectric decoupling heating system extracting steam from a utility boiler. A steam condensing heat exchanger is mainly adopted for heating return water of a heating network, a steam extraction heater is then additionally arranged behind the steam condensing heat exchanger, and heat source steam of the steam extraction heater is extracted from an overheating section or a reheating section of the utility boiler. When a turbine power generation system is under the high load, exhaust steam of a turbine or steam extracted from a medium-pressure cylinder and low-pressure cylinder communicating pipe of the turbine is completely adopted to be condensed in the steam condensing heat exchanger to release heat to heat the water of the heating network, when the load of the turbine power generation system is reduced and the heating capability of the steam condensing heat exchanger is insufficient, high-pressure steam is extracted from the utility boiler, subjected to pressure reduction and sent to the steam extraction heater, the water of the heating network is further heated, and therefore it is ensured that the heating capability is not reduced under the low power generation load. According to the thermoelectric decoupling heating system extracting the steam from the utility boiler, thermoelectric decoupling of a heating power plant can be achieved, it is ensured that the heating capability under the low power generation load is not reduced, in addition, decreasing of the temperature of tail smoke of the utility boiler under the low load can be relieved, and it is ensured that a boiler denitration system works normally.

The invention relates to a large-thrust circulating water pump motor ventilation and cooling structure which is composed of cooler units, an upper rack, a lower rack, a stator and a rotor. The cooler unit is a main portion for heat exchange of a motor and the outside, the upper rack and the lower rack form a sealing boundary of the ventilation and cooling structure, and the stator and the rotor form a portion for heat exchange of an iron core, a winding, a copper bar and the inside of an end ring. A traditional design concept that coolers are configured on two sides of a circulating water pump motor is changed, a ventilation dead zone is decreased, four coolers are divided into two cooler units, each cooler unit includes two coolers which are parallelly connected, and the cooling effect and reliability are improved. Windows of a rotor supporting air guiding plate and a radiation plate are optimized, the pressure and air volume are increased, and the cooling effect of eight air zones is ensured. The novel large-thrust circulating water pump motor ventilation and cooling structure is provided with eight air zones, adopts four-side heat exchange and meets the requirements of three generations of large-thrust circulating water pump motor ventilation and cooling structures.

The present invention relates to the manufacture of watch. The double-lever interlocking change-over mechanism consists of gear, double swing links, ratchet wheel, isolating ring, wheel sleeve, nail and toothed shaft assembled together. The key point of the mechanism is that the gear with both inner and outer teeth and the double swing links constitute one enclosed transmission chain for transferring motion and force in single way. The mechanism has mesh between gear and automatic hammer and mesh between toothed shaft and automatic spring winding wheel. The mechanism is high in reliability, long in service life, low in cost and high in efficiency.

The invention provides an engine two-level adjustable valve lift device, and belongs to the technical field of automobiles. The engine two-level adjustable valve lift device solves the problem that anexisting two-level adjustable valve lift device is poor in stability. The engine two-level adjustable valve lift device comprises a cam shaft and cam shaft sleeves, the cam shaft sleeves are positioned outside the cam shaft in the circumferential direction, and each cam shaft sleeve is fixedly connected with a high-speed cam and a low-speed cam. The cam shaft is further sleeved with an adjustingsleeve, the adjusting sleeve is positioned between a pair of cam shaft sleeves in the circumferential direction, and an expansion block arranged in a protruding manner and a contraction strip are arranged at the middle position of the outer side wall of the adjusting sleeve. In the axial direction of the adjusting sleeve, the width of the expansion block is larger than that of the contraction strip, the two side walls of the connecting position of one end of the expansion block and one end of the contraction strip are arc movable profiles, the outer side wall of the adjusting sleeve is furtherprovided with failure blocks, the failure blocks are located on the two sides of the expansion block, and the outer surfaces of the failure blocks are gradually-opened failure profiles. The engine two-level adjustable valve lift device has the beneficial effect of being good in stability.

The present invention is based on the use of a battery system (BS), especially the lithium ion battery system, which improves the safety device (SV).Among them, the safety device (BV) is applicable to the electrical crossing of at least one battery device (BV). Among them, the safety device (SV) has contact components (KE), and the contact element can occupy the first position (P1) and the second position (P2), where the contact element (KE) is located in the first position (P1), at least one battery device (BV) is connected in series, and when) When in the second position (P2), at least one battery device (BV) was called by electricity. Among them, the safety device (SV) had a callback device (RV) in orderThe status parameter of at least one battery device (BV) is moved from the second position (P2) to the first position (P1).

The invention discloses an air filter capable of intelligently reminding replacement of a filter element, and belongs to the technical field of intelligent reminding equipment. The air filter comprises a filter main body frame, a fixed support rod and an air extraction mechanism, the fixed support rod is fixedly mounted on the inner side of the filter main body frame; and an air extraction mechanism is fixedly mounted on the right side of the filter main body frame, and an intelligent reminder is fixedly mounted at the top of the filter main body frame. Through ingenious design, the intelligent reminder, a scanning connecting end, a dust scanner, an alarm controller, a scanning detector, a sound alarm and a reminding controller are combined, so that the problems that dust in air is accumulated on the filter itself after long-time use of an existing air filter during use, the dust in the air cannot be accumulated on the filter itself, and the filtering effect of the filter is reduced are solved. By means of the structure, intelligent inspection can be carried out on the filter within a certain time, and alarm reminding can be carried out on the outside world within the inspection time.

The invention discloses an Ethernet ring network link failure recovery method, an Ethernet ring network and node equipment, wherein the method comprises the steps: increasing a self-failure identification value by a determined step value when main node equipment receives a failure message of a link which is not directly connected to the equipment; reducing the self-failure identification value bythe step value when the main node equipment receives a failure recovery message of the link which is not directly connected to the equipment, and judging whether the failure identification value which is reduced by the step value is greater than a determined failure identification initial value or not; if so, doing not block a self slave port; and otherwise blocking the self slave port. The problem of communication interruption caused by overlong recovery and convergence time of the Ethernet ring network is solved.

The invention relates to a space debris prevention type heat radiator, which is a cylindrical structure formed by a plurality of connecting plates in a surrounding way. Heat pipes which are arranged in parallel are arranged on one side of the connecting plates. A fluid pipeline is arranged on the heat pipes in the shape of a continuous square wave. One part of the fluid pipeline which is arranged at the rising edge or the falling edge of the square wave is fixedly connected with the heat pipes. The other part of the fluid pipeline is arranged among the heat pipes and is not in contact with the connecting plates. The heat pipes and the fluid pipelines are arranged on the inner wall of the cylindrical structure. Compared with the fluid pipeline of the existing fluid loop radiator, the fluid loop pipeline of the heat radiator provided by the invention is greatly reduced and the probability that the fluid pipeline is hit by space debris is greatly reduced. Even though the space debris hit the heat pipes and cause the heat pipes to fail because of leakage, only the radiating capacity of a small area where the heat pipes are hit is lost and almost the working of the entire radiator is not influenced. If the space debris hit the fluid pipeline and cause the fluid pipeline to fail because of leakage, an automatic valve can detect the pressure of a hit branch and can isolate the hit branch, and the situation that the entire radiator fails is avoided.

The invention relates to a frequency converter drive protecting circuit which comprises a sampling unit, a comparing unit and a protection outputting unit, wherein the input end of the sampling unit is connected to a direct current bus of a frequency converter and is used for converting a current value of the direct current bus into a voltage value for outputting; the input end of the comparing unit is connected to the output end of the sampling unit and used for outputting a switching-on signal when the voltage value of the input end is more than a first threshold; and the protection outputting unit is used for outputting a protection signal according to the switching-on signal output by the comparing unit. The invention realizes the monitoring on the current of the direct current bus of the frequency converter by the sampling and the comparison and has lower cost. In addition, the circuit also has perfect protection function.

An optical bus. Optical sub-assemblies are used to connect lengths of optical fiber to form a single optical fiber that is a bus. A master transceiver may be connected to one end of the fiber and nodes can be connected to the optical sub-assemblies. Each optical sub-assembly includes a center fiber with a mirror that enables each connector to reflect optical signals out of the fiber and that enables a node to launch optical signals on the optical bus. The optical bus can also be connected with a second transceiver that may be used to deliver optical power to the attached nodes. Some nodes include two optical subassemblies to enable bidirectional communication on the optical bus.

The invention relates to a method for preparing broad spectrum antihumanglobulin cards. Six micro-column gel tubes are arranged on the cards, and the six micro-column gel tubes are gel tubes containing an antibody for resisting IgG+C3d. The method comprises the following processes of preparation of a gel suspension medium, preparation of a gel, selection of the antibody, and preparation and sub-package of the gel. The gel suspension medium comprises the reagents of (5.5-6.5)*10-4g / ml methyl- p-hydroxybenzoate, (1.0-1.5)*10-4g / ml propyl p-hydroxybenzoate, (1.6-1.9)*10-2g / ml glycine, (1.7-1.9)*10-3g / ml sodium chloride, (2.1-2.4)*10-4g / ml monopotassium phosphate, (4.6-4.8)*10-4g / ml disodium hydrogen phosphate and less than or equal to 2 percent of bovine serum albumin. The reagents are dissolved by using distilled water; and the pH value is adjusted into 6.6-6.8. The broad spectrum antihumanglobulin cards prepared by the method have the advantages of high sensitivity, favorable specificity and stable quality.

The invention discloses an annular pipe sealing ring used for ultralow-temperature dynamic sealing. The annular pipe sealing ring comprises a pipe and a group of air inlet holes, wherein the pipe is provided with a hollow cavity, and the air inlet holes are formed in the pipe. The pipe is annular, and the hollow cavity of the pipe is internally provided with a supporting piece. The sealing ring with the design can be made of a relatively flexible low-temperature-resistant material, and the sealing effect is ensured; meanwhile, the annular pipe sealing ring not only can be used for static sealing and sliding sealing under an ultralow-temperature working condition but also can be used for dynamic sealing under the ultralow-temperature working condition; when no fluid pressure exists in the inner cavity, the thin-wall pipe is supported through stable supporting force provided by the supporting piece inside the inner cavity, and crushing and failure of the pipe are prevented; when high-pressure fluid enters the inner cavity of the pipe and the pressure difference is produced, the thin-wall pipe has enough deformation capability, can be closely attached to the metal surface and is good in sealing effect; and in addition, when the two sealing end surfaces are relatively separated, the sealing ring has enough strength to bear the pressure difference alone, and breaking caused by pulling, bursting and failure are avoided.