6results about How to "Zero power consumption" patented technology

This utility model discloses a differential pressure gauge with a bidirectional pressure equalization protection structure, including a gauge body, a high-pressure side inlet, and a low-pressure side inlet. The gauge also includes a bidirectional valve, comprising a high-pressure side channel, a low-pressure side channel, and two pressure-conducting valves. Each pressure-conducting valve includes a pressure equalization channel, a valve ball, and an elastic element. The side wall of the pressure equalization channel is provided with a pressure equalization inlet and a pressure equalization guide outlet. One end of the elastic element is fixedly installed, and the other end is fixed to the valve ball, with the elastic element supporting the valve ball and blocking the pressure equalization inlet. Therefore, this utility model's differential pressure gauge achieves bidirectional pressure equalization protection through two pressure-conducting valves. When the pressure difference across the gauge exceeds the limit, it automatically connects the high-pressure and low-pressure side channels to achieve rapid pressure equalization, reducing the pressure difference below a safe value and preventing damage to the gauge. It also features bidirectional response, zero power consumption, automatic reset characteristics, simple structure, and ease of implementation.

The application relates to a key control circuit, method, device, equipment, storage medium and remote controller, and relates to the technical field of electronics. The key control circuit comprises a key module, a power supply module, a control module and a power supply control module; the key module is used for simultaneously turning on a passage between the power supply module and the control module and a key code signal triggering passage when the key module is operated; the control module is used for starting timing and outputting a first control signal to the power supply control module when a power supply signal is acquired in a power-off state, the first control signal is used for controlling the power supply control module to be turned on, so that the control module is powered by the power supply module within a preset delay time length; when the key module is not operated within the preset delay time length, a second control signal is output to the power supply control module, the second control signal is used for controlling the power supply control module to be turned off, so that the control module is stopped being powered by the power supply module. The application is used for solving the problem that the power consumption of the remote controller is large in standby mode.

The application provides a preparation method of a micro passive electroluminescent electric field sensing patch with vector perception capability, and comprises the following steps: S1, preparing ZnS:Cu@Al2O3 particles; S2, mixing 28-32 parts by mass of the ZnS:Cu@Al2O3 particles, 4-6 parts by mass of ZnO whiskers and 95-105 parts by mass of an E51 epoxy resin matrix, adding 80-90 parts by mass of MHHPA as a curing agent and 0.5-1.5 parts by mass of DMP-30 as an accelerator, performing high-speed stirring and dispersion on the mixture, and then performing pre-curing and complete curing, so that a composite material film is finally formed; and S3, using a micro-nano lithography technology to prepare a sensing patch based on the composite material film obtained in the step S2. Through the local electric field enhancement effect of the zinc oxide whiskers, the application realizes the precise detection of a weak field for the first time, and is suitable for high-sensitivity scenes such as partial discharge monitoring.

The utility model relates to the technical field of industrial flue gas treatment, in particular to a multifunctional flue gas flow equalizing device which comprises a flow equalizing unit, a dust removal unit and a cooling unit, and the flow equalizing unit comprises a pore plate I, a pore plate II, a flow equalizing pipe, an upper sealing plate, a side sealing plate, a lower sealing plate, a connecting flange, reinforcing ribs and supporting legs; the dust removal unit comprises a dust collection hopper and a dust discharge valve; the cooling unit comprises an air inlet valve, an air inlet cavity, an air exhaust valve and an air exhaust cavity. According to the scheme, the flow equalizing pipe structure with the small air inlet diameter and the large air outlet diameter is adopted, the flow equalizing distribution effect of inlet smoke is improved, the uniform diffusion process of the smoke at the outlet of the device is accelerated, and the uniformity of the flow field of the smoke at the inlet of the fluoroplastic heat exchanger is effectively guaranteed; and the dust in the flue gas is captured, intercepted and collected, and the captured dust is discharged out of the device regularly through the automatic dust discharging system, so that the dust content of the flue gas passing through the device is effectively reduced, and the abrasion risk of the fluoroplastic heat exchange tube is reduced.

The invention discloses a fuel tank cryogenic inerting system and method based on airborne liquid hydrogen vaporization cold energy, and belongs to the technical field of aviation fuel tank explosion prevention. The liquid hydrogen supply module is used for providing liquid hydrogen; the inerting module comprises a micro-channel heat exchanger, a fan and a solid oxygen separator; the solid oxygen separator comprises a rotational flow cavity with a tangential inlet, a solid particle settling opening and a gas outlet; the liquid hydrogen supply module is connected with a cold side inlet of the micro-channel heat exchanger; an inlet of the fan is connected with a gas phase space of an aircraft fuel tank, and an outlet of the fan is connected with a hot side inlet of the micro-channel heat exchanger; a hot side outlet of the micro-channel heat exchanger is connected with a tangential inlet of the solid oxygen separator; and a gas outlet of the solid oxygen separator is connected with a gas phase space of the fuel tank. The invention has the advantages of high energy utilization rate, high inerting efficiency, good safety and strong adaptability.

The invention relates to the technical field of high-voltage discharge, in particular to a high-voltage discharge system with a multi-protection function and a control method, high-voltage discharge multi-protection is realized through multi-circuit cooperation: a lighting switch circuit board converts 24V to 12V for a chip to work, and when VSample is higher than 10V, high voltage is cut off to prevent overvoltage of a xenon lamp; the peak absorption circuit board is driven to absorb reverse electromotive force to prevent breakdown by using an RCD network when the IGBT is turned off; the switching circuit generates SafeTrigger in real time, and the SafeTrigger is pulled down immediately to turn off the IGBT when the current exceeds 600A, the pulse exceeds 25ms and the like. The over-current protection circuit takes 8V as a threshold value, and is forcibly turned off to prevent the IGBT from being damaged when 600A; a pulse time length limiting circuit forcibly pulls down the SafeTrigger 25 ms later, and ultra-long pulses are completely eradicated; the time for limiting the turn-off of the IGBT is 15 microseconds, and the turn-off stability is ensured; when the over-temperature protection circuit is 70 DEG C, the signal is pulled down to close the drive; the constant current source feedback circuit amplifies and outputs as a current reference, maintains stable discharge, and improves the safety, reliability and service life of the system.