30results about How to "Will not affect safe operation" patented technology

The invention relates to a method for implementing a user mode drive program in an embedded Linux, and belongs to the technical field of embedded operating systems. The method for implementing the user mode drive program in the embedded Linux comprises the specific steps of carrying out separation on a traditional kernel mode drive program to form a k-driver component running in a kernel mode and a u-driver component running in a user mode according to whether performance is related or not and priorities, building a dynamic loadable kernel module k-mod in the kernel mode, and building a dynamic link library u-lib in the user mode. According to a user mode programming tool, a programmer is allowed to use universal mature programming tools such as a code debugger when carrying out programming, and coding quality is improved; better performance is achieved, and performance, such as the throughput, the delay and the CPU overhead, is similar to performance of the traditional kernel mode device drive program; fault isolation is achieved, and a fault occurring on a user layer component cannot influence a kernel, namely, safe operation of a whole system cannot be influenced; compatibility is achieved, the method for implementing the user mode drive program in the embedded Linux is compatible with an existing embedded Linux system, and the same interfaces are provided.

The invention relates to a personalized air supplying end device; a fresh air volume adjusting valve, a return air volume adjusting valve, a manual adjusting knob or an electric actuator, an air volume adjusting valve draw bar, an air volume adjusting valve leaf, a linkage mechanism bearing and a linkage air valve connecting rod form a linkage combination air volume adjusting valve with an up-down or left-right structure; a fan is arranged in a sound eliminator case, a fixed air opening is arranged at the outer side of the sound absorber case, the sound eliminator case is separated from a sound- eliminating static pressure box by a partition plate, an air volume adjusting valve and an air valve control draw rod are arranged on the partition plate, the manual adjusting knob or an electrical control mechanism are arranged on the shell of the device, the air volume adjusting valve, the air valve control draw rod and the manual adjusting knob or the electrical control mechanism are arranged behind the fan, a preformed function segment interface connecting part, a flange or a bolt connecting part, a fan adjusting knob or an electric adjustor and an air outlet are also arranged on the shell. The personalized air supplying end device can be used for a floor air supplying system, and can be arranged at other positions according to the environment requirements.

The invention discloses a novel energy-saving air conditioner for a computer room. The novel energy-saving air conditioner for the computer room comprises an indoor machine box located in the room, and a control system placing area, a control panel displayer, two sets of air conditioner parts, a water pan, an indoor unit fan, a condenser A, a condenser B and a condenser fan are arranged in the indoor machine box, wherein the condenser A, the condenser B and the condenser fan are arranged out of the room. Hot air in the room enters an air inlet duct area through air inlets formed in the rear wall of the indoor machine box and the top of the indoor machine box under the pumping pressure of the indoor unit fan, is cooled through an evaporator A and an evaporator B and then enters an exhaust duct, and cold air in the exhaust duct is sent into the room through an air outlet in the bottom of the indoor machine box. The novel energy-saving air conditioner for the computer room is simple in structure and relatively low in product manufacturing cost; when the novel energy-saving air conditioner for the computer room is used, the reliability is high, the refrigeration effect is good, and vigorous promotion and application can be performed easily.

The invention relates to an anti-voltage-sag and overcurrent protection linkage control device and a control method thereof. The device and the method are suitable for performing overcurrent protection on a load side and performing anti-voltage-sag control on a power supply side of power equipment. The device comprises a main power supply module connected to a power supply side, a standby power supply module which is connected with the main power supply module and charges the main power supply module, a CPU module which is connected with the main power supply module, a voltage and current signal acquisition and processing module which is connected with the CPU module, a relay switch and circuit breaker module which is connected with the CPU module, and an FRAM storage module which is connected with the CPU module. The influence of system-side voltage sag on load-side equipment can be effectively prevented; voltage shaking of the power supply side due to the fact that the fault cannot be removed in time when the load side breaks down can be prevented, the safe operation of equipment on the adjacent side cannot be affected, the selectivity and reliability of an existing anti-voltage-sag device can be improved, and the influence of the anti-voltage-sag device on rapid fault element removal of the system is prevented.

The invention discloses a contactless elevator taking system. The contactless elevator taking system comprises a cloud server, an elevator gateway and an elevator controller, wherein the cloud serveris in communication connection with the elevator gateway through a mobile communication network, and the elevator gateway is in communication connection with an Internet of Things communication port of the elevator controller. The invention further discloses a contactless elevator taking method. By the adoption of the contactless elevator taking system and the contactless elevator taking method, auser can automatically take an elevator without making contact with elevator keys, implementation and operation are easy, and the safety of the elevator taking process is improved.

The invention discloses an online diagnosis device and method for a large-scale rotating machinery equipment peaking-shaft system. The device comprises a supervision instrument TSI system installed a large-scale rotating machinery equipment site, the supervision instrument TSI system is provided with a plurality of paired eddy-current sensors, and each paired eddy-current sensor transmits vibration information of the main shaft of large-scale rotating machinery equipment to the supervision instrument TSI system; the supervision instrument TSI system transmits the vibration information to an acquisition device, and the acquisition device calculates to acquire the accurate position of the main shaft through the vibration information and transmits the accurate position of the main shaft to a DEH control system; meanwhile, the DEH control system receives signals from a peaking-shaft oil pump starter relay; the DEH control system performs difference calculation between the accurate positions of two times on the signals received from the peaking-shaft oil pump starter relay to acquire height of the main shaft being raised, and online diagnosis is realized. The online diagnosis device and method has the advantages that safety running of the equipment is improved, and working load and working intensity of operators and maintenance personnel are reduced.

The invention provides an online sampling and verifying gas density relay with a protection function. The online sampling and verifying gas density relay comprises a gas density relay body, a gas density detecting sensor, a temperature adjusting mechanism, an online verifying contact signal sampling unit and an intelligent control unit. The online verifying contact signal sampling unit comprises afirst connecting circuit and a second connecting circuit. The first connecting circuit is connected with a contact of the gas density relay body and a contact signal control circuit. The second connecting circuit is connected with the contact of the gas density relay body and the intelligent control unit. In the non-verification state, the second connecting circuit is switched off, and the firstconnecting circuit is switched on; in the verification state, the first connecting circuit is switched off, the second connecting circuit is switched on, and the contact of the gas density relay bodyis connected with the intelligent control unit; it is ensured that action signals of the contact are not uploaded during verification and the safety operation of a power grid is not affected; meanwhile, the gas density relay is free of maintenance, benefits are greatly improved, and the reliable and safe operation of the power grid is improved.

The invention provides a multifunctional gas density relay. The relay comprises a casing body, a base arranged in the casing body, a pressure detector, a temperature compensating element, at least onesignal generator, a device connector connected with electrical equipment, and an online verification contact signal sampling unit. The online verification contact signal sampling unit is connected with the signal generator and used for sampling a contact signal generated when the multifunctional gas density relay generates a contact action at a sampling ambient temperature. The online verification contact signal sampling unit is relatively isolated from the contact of the multifunctional gas density relay on a circuit in a non-verification state. In a verification state, a contact signal control loop is cut off to ensure that the contact signal of the multifunctional gas density relay is not uploaded and safe operation of a power grid is not affected.

The present invention relates to a method for calculating load distribution intensity and a maximum bending moment of a rectangular two-way slab system. The method adopts a characteristic simulated strip method to calculate the load distribution intensity and the maximum bending moment and a relationship thereof of the rectangular two-way slab system, and specifically comprises the following steps: A, intercepting two quadrature slab strips with a unit width in the rectangular two-way slab; B, considering a width to length ratio and a four-side support condition of the rectangular two-way slab, and calculating the load distribution intensity of the slab strips; and C, calculating the maximum bending moment of the rectangular two-way slab and the relationship of the load distribution intensity and the maximum bending moment. Compared to the traditional and prior art, the method provided by the present invention discloses that under the action of a uniformly distributed load of an internal force field of the rectangular two-way slab with a conventional boundary condition, corresponding internal and logical relationships exist between a midspan of the two-way slab and job characteristics of the slab and between the maximum bending moment internal force of a support and the job characteristics of the slab, and the logical and internal relationships can be expressed by using a concise mathematical model; and the method has the advantages of improvement on the design security and convenience of the two-way slab, high calculation reliability and the like.

The invention discloses a substation work ticket safety measure integrity discrimination method based on visual identification, and the method comprises the steps: converting a safety measure of a work ticket into a safety measure code group which can be recognized by a computer, and inputting the safety measure code group into a database of a monitoring server; numbering and check code setting are carried out on the on-site monitoring cameras; the monitoring camera collecting on-site safety measure information, adding camera codes to the collected information, and uploading the information toa database of the server; and the data platform of the server comparing the information acquired by the camera with the safety measure logic code to judge whether the field safety measures meet the requirements of the safety measures on the work ticket or not, and if the field safety measures do not meet the requirements, sending and pushing alarm information to a specified mailbox to remind a worker. A worker does not need to hold the work ticket by hand to check the work ticket on site through a manual check method, the labor cost is reduced, and all-day online monitoring of the camera is utilized to ensure that safety measures are effective at any time.

The invention discloses a split type multi-stage heat pipe system which mainly comprises a first-stage heat pipe group, a second-stage heat pipe group, a third-stage heat pipe group, heat pipe units and a connection pipeline, and an N-stage heat pipe group can be formed as required. The whole split type multi-stage heat pipe system is composed of condensers, evaporators, steam channels and liquid channels. The evaporators and the condensers of the first-stage heat pipe group, the second-stage heat pipe group and the third-stage heat pipe group are respectively a group of independent circulation loop formed by the heat pipe units with the same quantity in parallel connection mode. The evaporators of the system are arranged on the lower portions of the condensers, the steam channels enable the top ends of the first-stage heat pipe group, the second-stage heat pipe group and the third-stage heat pipe group to be respectively connected with the top ends of the condensers, and the liquid channels enable the bottom ends of the first-stage heat pipe group, the second-stage heat pipe group and the third-stage heat pipe group to be respectively connected with the bottom ends of the condensers. The evaporators and the condensers of the whole system are separated. The split type multi-stage heat pipe system can achieve remote heat transfer so that the system is large in process design flexibility and good conditions are created for device scaling-up, heat energy comprehensive utilization and heat energy utilization system optimization.

The invention provides a contact signal collection circuit for online verifying a gas density relay on spot. The contact signal collection circuit comprises a first collecting circuit and a second collecting circuit, wherein the first connecting circuit connects a contact of the gas density relay and a contact signal control loop, and the second connecting circuit connects the contact of the gas density relay and a contact signal sampling port of an online verification device; when the contact signal collection circuit is in a non-verification state, the second connecting circuit is opened, and the first connecting circuit is closed; when the contact signal collection circuit is in a verification state, the first connecting circuit is opened, and connected with the second connecting circuit, then the contact of the gas density relay and the contact signal sampling port of the online verification device are connected, and it is ensured that during verification, contact actuating signalsare not uploaded, and the safety operation of a power grid is not influenced; meanwhile, the gas density relay is free of maintenance, the benefit is greatly increased, and operation reliability andsafety of the power grid are greatly improved.

The invention discloses a sound insulation and noise reduction device for a wall-penetrating pipeline in a hydropower plant. The sound insulation and noise reduction device comprises a sound insulation and noise reduction device body, wherein the sound insulation and noise reduction device body consists of a sound insulation and noise reduction plate and a mounting frame; the sound insulation andnoise reduction plate is vertically arranged and embedded into a channel opening of a wall body through the mounting frame; the sound insulation and noise reduction plate consists of an upper plate body, a middle plate body and a lower plate body; the upper plate body, the middle plate body and the lower plate body are sequentially overlapped; a through hole A convenient for a large pipeline to pass through is formed between the upper plate body and the middle plate body; a through hole B convenient for a small pipeline to pass through is formed between the middle plate body and the lower plate body; and a rubber buffer sleeve is arranged in the through hole A. Compared with the prior art, the sound insulation and noise reduction device for the wall-penetrating pipeline is designed for a wall-penetrating channel in the hydropower plant house, so that the working areas are effectively isolated, the noise in a hydraulic turbine house is prevented from transmitting out to influence otherworking areas, the mounting and the dismounting are very convenient, and the safe operation of an original pipeline is not influenced.

The invention provides a full-life intelligent monitoring gas density relay and an implementation method thereof. The full-life intelligent monitoring gas density relay comprises a gas density relay body, a gas density detection sensor, a valve, a pressure adjusting mechanism, an online verification contact signal sampling unit and an intelligent control unit. The valve and the gas density relay body are arranged on the pressure adjusting mechanism, the valve is opened or closed under the control of the pressure adjusting mechanism, and a gas circuit of the gas density relay body is connectedwith electrical equipment during work and separated from the electrical equipment during verification. The pressure adjusting mechanism comprises a first cavity, a second cavity and a third cavity which are connected end to end, the first cavity is slidably provided with a first pressure changing piece, the first pressure changing piece can enter and exit from the second cavity, and the third cavity is slidably provided with a second pressure changing piece; and the second pressure change piece can quickly adjust pressure rise and fall of the gas density relay body, and the first pressure change piece can slowly adjust the pressure rise and fall of the gas density relay body so as to achieve precise verification of the density relay.

The invention discloses a dust removal device based on sound wave agglomeration and its application, comprising a device inlet, a device body with gas circulation performance and a device outlet, wherein a high-frequency sound wave generator is arranged in the device body between the device inlet and the device outlet generator and low frequency sound wave generator. The above devices are installed on the flue at the outlet of the desulfurization tower, and the dedusting effect on the dust of various particle sizes is very good, especially the removal efficiency of PM2.5 and PM10 exceeds 85%. The equipment for SO in the flue gas 2 and SO 3 The removal efficiency is more than 20%.

The invention discloses a gas insulated bus conductor butt joint tool comprising a conductor supporting plate which is provided with a first fixing groove, a second fixing groove and a third fixing groove corresponding to a three-phase conductor; and a middle connecting part which is fixedly connected with the side edge of the conductor supporting plate, and is used for being detachably connected with a bus shell so as to fix the conductor supporting plate in the bus shell. The device can easily assist in the whole butt joint process of a bus conductor, assist in positioning of the bus conductor, and provide good reliability guarantee for butt joint. The bus conductor can be supported in an auxiliary mode, the situation that cracks are possibly generated on the surface of a basin-type insulator due to unilateral stress and the equipment operation safety is endangered is avoided, disassembly and assembly are easy, and the equipment installation efficiency and installation quality are improved.

The invention discloses an ultra-high voltage (crosslinked polyethylene)XLPE cable insulation online monitoring device based on a vector method and a monitoring method, and belongs to the technical field of cable online monitoring. The problem that it is difficult to distinguish a zero-sequence current and a leakage current of cable insulation in the prior art is solved. According to the ultra-high voltage XLPE cable insulation online monitoring device, the output ends of a three-phase power supply are connected to the input end of each phase load through a XLPE cable of each phase, the phaseloads are connected to a ground GND, and a corresponding head-end heat-penetrating differential type CT and tail-end heat-penetrating type CT are connected to the head end and the tail end of the XLPEcable of each phase; the tail-end heat-penetrating type CT of each phase is connected to a FPGA through a resistor, and the FPGA controls a current source to be connected to the head-end heat-penetrating differential type CT of each phase through voltage of each phase; and the head-end heat-penetrating differential type CT of each phase is connected to a resistor, the head-end heat-penetrating differential type CTs of the three phases are connected in series with the FPGA, and the FPGA is bidirectionally connected to a computer. The measurement of the three-phase leakage current is achieved,by comparing and analyzing a vector relationship between the three-phase leakage current and a reference phase leakage current, the accurate evaluation of the insulation status of the XLPE power cableis realized.

The invention relates to the field of current transformers, and particularly relates to a secondary assembly of a composite insulation dry-type current transformer. The secondary assembly comprises asecondary coil, a secondary wiring board and a secondary wiring terminal, wherein the secondary wiring terminal is arranged on the secondary wiring board, the secondary coil is connected with the secondary wiring terminal on the secondary wiring board through a secondary lead, the secondary wiring terminal comprises a stud and a nut, the stud comprises an unthreaded shaft section in the middle andthreaded sections at the two ends, the unthreaded shaft section is provided with a terminal limiting block, and the secondary wiring board is provided with a limiting groove matched with the terminallimiting block. The secondary wiring terminal is provided with the terminal limiting block, and it is guaranteed that virtual connection of the secondary lead is avoided. In addition, the secondary wiring board is flexible and convenient to install.

The invention provides an online sampling and verifying gas density relay with a protection function. The online sampling and verifying gas density relay comprises a gas density relay body, a gas density detecting sensor, a pressure adjusting mechanism, a valve, an online verifying contact signal sampling unit and an intelligent control unit. The online verifying contact signal sampling unit comprises a first connecting circuit and a second connecting circuit. The first connecting circuit is connected with a contact of the gas density relay body and a contact signal control circuit. The secondconnecting circuit is connected with the contact of the gas density relay body and the intelligent control unit. In the non-verification state, the second connecting circuit is switched off, and thefirst connecting circuit is switched on; in the verification state, the first connecting circuit is switched off, the second connecting circuit is switched on, and the contact of the gas density relaybody is connected with the intelligent control unit; it is ensured that action signals of the contact are not uploaded during verification and the safety operation of a power grid is not affected; meanwhile, the gas density relay is free of maintenance, benefits are greatly improved, and the reliable and safe operation of the power grid is improved.

The invention relates to an efficient and oil-gas-free sealing device for a floating roof storage tank. The efficient and oil-gas-free sealing device comprises a primary sealing assembly, a secondarysealing assembly and an oil-gas-free sealing assembly, wherein the primary sealing assembly and the secondary sealing assembly are arranged between the inner side surface of the tank wall of the storage tank and the outer side surface of a floating disc edge plate, the oil-gas-free sealing assembly comprises a spongy soft elastic object, a floating roof storage tank space between the primary sealing assembly and the secondary sealing assembly is filled with the spongy soft elastic object, the spongy soft elastic object is moved up and down with the floating of the floating disc edge plate, thesealing of the floating roof storage tank space between the primary sealing assembly and the secondary sealing assembly is achieved, and a serrated protrusion of an oil-gas-free sealing section is arranged at the attachment position between a macromolecule oil-gas tooth film and the inner tank wall of the storage tank. According to the efficient and oil-gas-free sealing device, the oil-gas spacebetween the primary sealing and the secondary sealing can be greatly reduced without affecting the safe operation of the primary sealing and the secondary sealing of the storage tank, and the safe operation of the storage tank is ensured.

The present invention relates to a method for calculating load distribution intensity and a maximum bending moment of a rectangular two-way slab system. The method adopts a characteristic simulated strip method to calculate the load distribution intensity and the maximum bending moment and a relationship thereof of the rectangular two-way slab system, and specifically comprises the following steps: A, intercepting two quadrature slab strips with a unit width in the rectangular two-way slab; B, considering a width to length ratio and a four-side support condition of the rectangular two-way slab, and calculating the load distribution intensity of the slab strips; and C, calculating the maximum bending moment of the rectangular two-way slab and the relationship of the load distribution intensity and the maximum bending moment. Compared to the traditional and prior art, the method provided by the present invention discloses that under the action of a uniformly distributed load of an internal force field of the rectangular two-way slab with a conventional boundary condition, corresponding internal and logical relationships exist between a midspan of the two-way slab and job characteristics of the slab and between the maximum bending moment internal force of a support and the job characteristics of the slab, and the logical and internal relationships can be expressed by using a concise mathematical model; and the method has the advantages of improvement on the design security and convenience of the two-way slab, high calculation reliability and the like.

The invention discloses an over-temperature prevention device for a CFB (circulating fluid bed) boiler after addition and burning of peat and a control method of the over-temperature prevention device; the device comprises a secondary air fan (7), a low temperature overheater, a lower temperature reheater (6), pasty fluid pumps (4) and peat spouts (2); the pasty fluid pumps (4) and the peat spouts (2) are connected by peat feeding pipelines; a peat pipeline air exhaust valve (3) is installed on each of the peat feeding pipelines; the air of the peat pipeline air exhaust valve (3) is exhausted every 3h for 3-5min, so that the output of the secondary air fan (7) is reduced and the oxygen content in a hearth is kept between 1.5% and 2.0%. According to the device and the method disclosed by the invention, the problems of the prior art that when the peat is added and is combusted in the CFB boiler, the combustion conditions are easily deviated from a design standard greatly if the peat exceeds the standard, the heating surfaces inside the boiler and on the tail part of the boiler are over-temperature, the safety operation of the boiler is affected or the machine set is in non-planned outage in a severe case, and the like are solved.

The invention discloses a full-automatic intelligent bus card swiping method. When passengers get on the bus through the back door, a bus card placing bag is selected and pulled, a bus card is put into the bus card placing bag, at this time, an I-shaped suspension rod is in an elongate state, when the bus card placing bag with the bus card and the hub motor run to the annular track position with the sensor, the sensor is triggered, through the induction of the I-shaped suspension rod, the sensor sends the sensing signal to a controller, the controller controls the hub motor tentatively, at that same time, the telescopic rod device is control to raise the card reader to the suspension position of the bus card placing bag, the bus card placed in the bus card placing bag is contacted with thecard reader to swipe the card, after swiping the card, the bus card placing bag and the hub motor continue to run on the annular track. When running to the passenger position, the passenger identifies the bus card according to the serial number on the bus card placing bag, and then pulls the bus card placing bag downward to remove the bus card from the bus card placing bag.

The invention discloses an intelligent card swiping control system, which comprises a circular track, a card swiping device, and a controller. The circular track is arranged at the top in the bus in an elliptical ring shape; multiple sets of hub motors are arranged in the circular track; the hub motors are mounted in a sliding groove of the circular track through hub motor shafts; U-shaped framesare suspended on the hub motor shafts; I-shaped suspenders are arranged on hanging plates of the U-shaped frames; return springs are sleeved on the I-shaped suspenders above the hanging plates; telescopic spring pin devices are arranged on the hanging plates. The I-shaped suspender is locked on the hanging plate by the telescopic spring pin device, and the return spring is in a compressed state, when the I-shaped suspender is pulled downward once; the telescopic spring pin device releases the lock of the I-shaped suspender, the I-shaped suspender is reset upwards, and the return spring is in arestored state, when the I-shaped suspender is pulled down again. Telescopic spring ropes are connected to the lower ends of the I-shaped suspenders, and bus card placing bags are connected to the bottom ends of the telescopic spring ropes.