45results about How to "Achieve zero loss" patented technology

The invention provides a small skid-mounted evaporation gas reliquefaction and recovery device for liquefied natural gas. The small skid-mounted evaporation gas reliquefaction and recovery device comprises a cryogenic storage tank (1), a regenerative cryo refrigerator (3), an externally-finned condensing heat exchanger (4), a pressure testing device (5), a temperature testing device (6), a heating device (7) and a control system (8). Real-time monitoring and stepless regulation can be performed on cryogenic temperature and output cold of the cryo refrigerator according to requirements on actual pressure and heat loads inside the cryogenic storage tank, and zero consumption of an LNG (liquefied natural gas) storage tank system can be realized; pumpless circulation of gas liquid flow inside the device can be realized by relying on self differential pressure and gravity; the small skid-mounted evaporation gas reliquefaction and recovery device is low in system energy consumption, compact in structure, simple in technology process, high in reliquefaction efficiency and low in operation and maintenance costs, and skid mounting of the device can be realized.

The invention discloses a remote database disaster recovery backup method and device and relates to the field of network security. The method comprises the steps of A, a source database is monitored,and monitored data changes are packaged into records to be written into a buffer; B, records in the buffer are asynchronously sent to a plurality of remote one-stage databases, and data changes are replayed in the one-stage databases; C, changes of the remote one-stage databases are monitored and copied to a plurality of remote two-stage databases, and accordingly, multipoint backup of a local database is realized. According to the method, the local database is monitored in real time, the monitored data changes are packaged into the records to be written into the buffer, then the records in the mass buffer are asynchronously sent to the plurality of remote one-stage databases simultaneously, and the changes of the remote one-stage databases are monitored and copied to the plurality of remote two-stage databases, so that the database data viability is improved greatly, and the method has the advantages that the real-time performance is good, the backup fineness is fine, the implementation and deployment are simple and flexible and the like.

The invention discloses an electricity-water cogeneration system of solar energy, comprising a silicon plate, wherein the back surface of the silicon plate is an evaporation cavity; working medium pairs of silica gels and water are arranged in the evaporation cavity; the evaporation cavity is connected with a condenser by a steam pipeline; the condenser comprises a coil pipe and a fin; the tail end of the coil pipe is provided with a water storage chamber; the upper and lower surfaces of the condenser are fixed with a condensing surface respectively so as to condense water in air at night; the condenser and the condensing surface are sealed and surrounded by two thermal storage shells which are made of thermal storage materials; and the outer surfaces of the thermal storage shells are covered by insulated materials. The electricity-water cogeneration system solves the problem of radiation of the silicon plate in the solar power generation process in deserts by using the phase change of the water, and realizes the electricity-water cogeneration by using refrigerating quantity of adsorbates for refrigeration to condense and collect the water in the deserts at night.

The invention relates to a method for processing high-polymer raw material cork particles. The method comprises the steps that (1) firstly, collected cork is smashed through a cork smashing device into rough cork particles with the particle sizes being 10-15 mm; (2) the particle sizes of the rough cork particles obtained through smashing in the step (1) are further reduced through an accurate grinding device to enable the particle sizes to be uniform; (3) cork powder obtained through grinding in the step (2) is sequentially screened and classified through a multi-layer cork fine powder screening device according to the particle sizes; (4) impurities in the cork fine powder screened in the step (3) are removed through a cork powder winnowing collecting device, and finally, the cork fine powder are collected according to different particle sizes so as to obtain finished cork particle powder. The method has the advantages that the steps are simple, operation is convenient, the raw material utilization rate is high, the processing efficiency is high, meanwhile, and the cork particles obtained through the method are good in quality, low in output unit weight, low in water content and good in color and luster and are high-quality high-grade environment-friendly high-polymer biological raw materials with high physical and chemical stability.

The invention discloses a novel high current switching control device and belongs to a high-power current control device. The novel high current switching control device is composed of alternating-current contactors KM1 and KM2, a switching control relay RLY1, auxiliary interlocking relays RLY2 and RLY3, a silicon controlled rectifier SCR and current-limiting resistors R1 and R2. The novel high current switching control device is characterized in that the alternating-current contactors and the relays are open in an early stage of powering on; and the device has three states of being powered on, being switched from bypass output to inverter output and being switched from inverter output to bypass output. A switching compensation mechanism is introduced on the basis of a high-power switching device to ensure power supply safety of electric equipment and prolong the electrical life of a contact point. The novel high current switching control device has the advantages of being simple in structure, capable of realizing zero loss, energy-saving and environment-friendly, higher in operation efficiency, smaller in size, high in reliability and the like.

The invention discloses a MySQL database replication method based on the ISER protocol. A host computer and a standby computer are subjected to disaster recovery protection through a master-slave replication technology, at the same time, the ISER protocol is used, a magnetic disk of the standby computer is mapped to the host computer for use, and the host computer stores its binlog on the mapped magnetic disk of the standby computer; if the host computer fails, a system conducts displacement comparison on host computer transmission binlog on the standby computer and binlog located on the mapped magnetic disk, and if there is a deviation, a part of extra binlogs located on the mapped magnetic disk are re-executed. According the method, it can be ensured that after the host computer fails, data of the standby computer is consistent with that of the host computer, and a set of high-availability MySQL solutions is provided for the financial field and other fields which have high requirements for data consistency.

The invention relates to a multi-break high-voltage system-based current-limiting device. The multi-break high-voltage system-based current-limiting device comprises high-speed eddy switches K1, K2, K3 and K4, wherein an incoming line end of the high-speed eddy switch K1 is connected with an incoming line end of a power distribution cabinet, an outgoing line end of the high-speed eddy switch K4 isconnected with an outgoing line end of the power distribution cabinet, a current-limiting reactor L1 is connected in parallel with two ends of the high-speed eddy switch K1, a current-limiting reactor L2 is connected in parallel with two ends of the high-speed eddy switch K2, a current-limiting reactor L3 is connected in parallel with two ends of the high-speed eddy switch K3, and a current-limiting reactor L4 is connected in parallel with two ends of the high-speed eddy switch K4. The multi-break high-voltage system-based current-limiting device has the advantages of high breaking capability, simple structure, rapid action and the like, the short-circuit strength can be effectively limited by the current-limiting reactors, the impact of a short-circuit current on electrical equipment isgreatly reduced, and zero loss of the current-limiting reactors during normal running can be achieved.

The invention discloses a guide rail anti-falling device and an installation method thereof. The method includes the following steps that S1, the end B of a guide rail is inserted into the end A of the guide rail, and a fixing bolt is used for fixation from a fixing hole; S2, the guide rail is inserted into a steering device connector and further fixed by a fixing bolt, and there is no need for asteering device to be fixedly connected with a tower body; S3, iron tower glide tacks are taken down to fix a tower body supporting plate onto iron tower angle steel, and the guide rail is put into aguide rail clamping block to tighten the fixing bolt; S4, a cross arm fixing clamp is fixed to cross arm angle steel at first, the guide rail clamping block is loosened and the guide rail is fixed; and S5, an end lock is fixed to a top end guide rail connecting hole with a fixing bolt, and the end lock is further fixed to the bottom end of the guide rail with the guide rail fixation clamping block. According to the technical scheme provided by the invention, installation is easy and practical, safety and reliability are achieved, adaptability and universality are high, installation is made extremely easy, installation efficiency is improved, labor intensity is relieved, zero loss of installation construction materials can be realized, the construction period is shortened, and the installation and application range of the device is widened.

The invention discloses a lossless vacuumizing cleaning machine for an automobile air conditioner. The lossless vacuumizing cleaning machine is used for filling refrigeration oil in an automobile airconditioning system or cleaning. The lossless vacuumizing cleaning machine comprises a case, a control panel installed on the case, a treatment device arranged in the case, and an input pipeline and an output pipeline which penetrate through the interior of the treatment device, wherein the input pipeline inputs a refrigerant held in a liquid storage bucket into the automobile air conditioning system in a manner of a high pressure or a low pressure, and the refrigerant flowing through the automobile air conditioning system is recovered into the liquid storage bucket in the manner of a low pressure or a high pressure through the output pipeline. The lossless vacuumizing cleaning machine disclosed by the invention is high in refrigerant recovery speed and recovery efficiency, and capable ofachieving a cleanliness degree which cannot be achieved by common recovery; and moreover, zero loss of refrigerant gas during vacuumizing is realized, so that the loss of the refrigerant is reduced while environment is protected.

The invention relates to an automobile air conditioner control method. The method includes the steps of judging whether an accelerator pedal of an automobile is in a stamped state; if the acceleratorpedal is in the stamped state, controlling an automobile air conditioner compressor to be shut down; if the accelerator pedal is not in the stamped state, controlling the automobile air conditioner compressor to run. Whether the automobile air conditioner compressor runs or shuts down is controlled by judging whether the accelerator pedal of the automobile is in the stamped state; when a driver accelerates driving by treading on the automobile accelerator pedal, it can be ensured that the power of the automobile is not reduced and a remarkable fuel saving effect is achieved; when the driver loosens the accelerator pedal, inertia energy of the automobile and sliding energy under the gravity during the downhill driving are made full use of to make the air conditioner compressor run, the inertia of the automobile is subjected to greater resistance and weakened, thus prolonging the service life of a brake disc. Through testing, the automobile air conditioner control method can save fuel bymore than 10%.

The invention relates to a high-voltage current-limiting device based on current-limiting zinc oxide FR, which includes a current-limiting zinc oxide FR, a high-voltage quick-blow fuse FU, a high-speed eddy current switch K0, a discharge damper RL, and a first isolation switch G1, a second The isolation switch G2 and the third isolation switch G3, the discharge damper RL and the high-speed eddy current switch K0 are connected in series at both ends of the current-limiting zinc oxide FR, and the high-voltage fast-blow fuse FU is connected in parallel at the two ends of the current-limiting zinc oxide FR. terminal, the incoming line end of the current-limiting zinc oxide FR is connected to the incoming line end AL1 of the high-voltage current limiting device through the first isolation knife switch G1, and the outgoing line end of the current-limiting zinc oxide FR is connected to the high-voltage current limiting device through the second isolation knife switch G2 Outgoing terminal AL2. The invention can quickly put into the current-limiting zinc oxide FR, through which the intensity of the short-circuit current can be effectively limited, and the impact of the short-circuit current on electrical equipment can be greatly reduced. While ensuring the voltage of the user terminal, the current-limiting oxidation can be realized Zero loss of zinc FR.

The invention relates to application of solar energy, in particular to an intelligent control system of a solar streetlamp. The intelligent control system is solar powered, allows automatic sensitive lighting through infrared control and light control and is convenient to use and energy saving. The intelligent control system comprises an AC backup power supply II (12), an AC-DC converter (11) and a low-tension control switch (10); the AC-DC converter (11) is connected with the AC backup power supply II (12); the low-tension control switch (10) is connected with the AC-DC converter (11); the low-tension control switch (10) is connected with a battery (5); the low-tension control switch (10) is also connected with a light control switch circuit (6); the light control switch circuit (6) is connected with an infrared control switch circuit (7) connected with a lamp (8) and a time delay circuit (9); a backup power supply I (1) is composed of a light control and infrared control energy-saving system. The intelligent control system is convenient to use and energy saving.

The invention relates to a self-protection current-limiting device based on a large-capacity high-speed switch FSR, including a current-limiting reactor L, a large-capacity high-speed switch FSR, a high-speed eddy current switch K0, a discharge damper RL; a discharge damper RL, a current-limiting reactor L, the high-energy fuse FU are connected in series in sequence, and the two ends of the series are respectively connected in parallel with a large-capacity high-speed switch FSR and a high-speed eddy current switch K0; one end of the discharge damper RL is connected to the incoming line terminal AL1 of the device, and the other end is connected to the limiter One end of the high-energy fuse FU is connected to the outlet end of the current-limiting reactor L, and the other end is connected to the outlet end AL2 of the device. The invention is simple in structure, safe and reliable, and can be put into the current-limiting reactor L within 0.15ms. The intensity of the short-circuit current can be effectively limited through the current-limiting reactor L, and the impact of the short-circuit current on the electrical equipment is greatly reduced. At the same time, zero loss of the current-limiting reactor in normal operation can be realized.

The invention provides a uranium dioxide hydrofluorination reactor in-built type gas filtering device. The gas filtering device has a main structure of an inverted-cone shaped cone, the top of the cone is provided with an outlet pipe, and a reactor is arranged below the bottom of the cone; the bottom of the cone is connected with an upper flange, the top of the reactor is connected with a lower flange, and the connection of the cone and the reactor is achieved by connecting the upper flange and the lower flange; a positioning plate is arranged between the upper flange and the lower flange and in the bottom of the cone; a plurality of filter elements are uniformly distributed in positioning holes in the positioning plate; the lower ends of the plurality of filter elements are placed inside the reactor; evaginable edges of the upper ends of the plurality of filter elements are clamped on the positioning plate, and then are tightly pressed by a press plate arranged above the positioning plate. The device can effectively filter material dust entrained by tail gas and realizes a fact that a material is recycled and further participates in reaction in the reactor, and the filtering effect can reach more than or equal to 90%.

The invention provides a data forwarding method, which comprises the steps of converting obtained original picture data into picture data in a Protobuf protocol format through a data front end, storing the picture data in a database server, and sending the picture data and a front end picture storage message to a data packaging server by a first message server; the data packaging server sending the picture storage file generated by packaging to a shared directory folder in an FTP server; a data back end sending the acquired picture storage file to an unpacking server; using the unpacking server for unpacking the picture data; a second message server storing the picture data and generating a back-end picture storage message; and an application server obtaining the back-end picture storage message and implements preset processing measures. The invention further provides a data forwarding system, a data forwarding device and a computer readable storage medium. According to the technical scheme, rapid cross-platform data transmission is achieved, and the conversion efficiency of data transmission is high.

The invention discloses a solar street lamp control device with an energy-saving function. The solar street lamp control device comprises a storage battery, a low-voltage control switch, an optical control switch, an infrared control switch and a time delay circuit, wherein the storage battery is connected with a solar cell panel and the optical control switch and is used for providing a first power supply voltage to the optical control switch; the low-voltage control switch is connected with an AC-DC conversion circuit, the storage battery and the optical control switch, and is conducted to output a second power supply voltage to the optical control switch when the first power supply voltage is lower than a preset voltage; the optical control switch is connected with the infrared control switch and is conducted to provide a third power supply voltage to the infrared control switch when the ambient light illuminance meets the preset requirements; the infrared control switch is connected with a street lamp and is conducted to provide a fourth power supply voltage to the street lamp when detecting that a pedestrian passes; and the time delay circuit is connected with the infrared control switch, times when the infrared control switch is conducted, and controls the infrared control switch to be off after timing a preset time period. The solar street lamp control device disclosed by the invention supplies electricity to the street lamp by solar energy, and achieves energy conservation by combining infrared control and optical control.