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47results about How to "Guaranteed safe isolation" patented technology
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Enterprise application deployment and management system for multiple tenants
ActiveCN105323282AEasy to addFlexible Service Adaptation EngineData switching networksResource isolationComposite application
The invention relates to an enterprise application deployment and management system for multiple tenants. A container-based multi-tenant isolation mechanism is realized; the integration and migration of enterprise legacy systems are supported; rich enterprise-level services are provided; SOA architecture-based enterprise-level application development is supported; perfect self-service ability is provided; high availability of a platform can be provided; dynamic expansion and demand-based scalability can be realized; and pure asynchronous intelligent routing is realized. The objective of the invention is to solve problems in multi-tenant resource isolation, compatibility with existing applications and composite application construction in cloud computing technologies for enterprise applications. The enterprise application deployment and management system for multiple tenants has the advantages of multi-tenant safe isolation, seamless migration of enterprise applications and the scalability of applications.
Owner:DIGITAL CHINA INFORMATION SYST
Data encryption system and method for interaction between tenants and cloud server memory
The invention discloses a data encryption system and method for interaction between tenants and a cloud server memory, and belongs to the technical field of computer data encryption. In the data encryption system, a control terminal is used for being in communication with the tenants and the cloud server memory, and receiving data file request information of the tenants; a data encryption key is obtained from a key manager, encryption and decryption are conducted on data files in safety board, and data file ciphertext is sent to the cloud server memory, or data file plaintext is transmitted to the tenants; the key manager is used for being in communication with the control terminal, generating the data encryption key, sending the data encryption key to the control terminal and sending the data file request information to a key storage; the key storage is used for safely storing the data file request information sent by the key manager. According to the data encryption system and method for interaction between the tenants and the cloud server memory, safety protection of tenant data is achieved through usage of tenant identifications and a symmetric cryptosystem encryption algorithm, intensity and complexity of key management can be reduced, and isolation of the tenant data is guaranteed.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Three-level type automatic ammunition-filling ammunition-pressing production line
The invention relates to a three-level type automatic ammunition-filling ammunition-pressing production line, which comprises six anti-explosion chambers, wherein the six anti-explosion chambers are composed of three ammunition-filling chambers and three ammunition-pressing chambers which are staggered. Rotating anti-explosion doors are respectively arranged among the anti-explosion chambers and anti-explosion walls positioned at two ends of each anti-explosion chamber and outside each anti-explosion chamber. Each ammunition-filling chamber is provided with a flow line, and an ammunition conveying mechanical hand, an ammunition sleeve wiping machine, a multi-station turntable and a die delivery device are sequentially arranged on an inlet of the flow line. The other side of an ammunition-weighing ammunition-filling machine is provided with a connecting gate type anti-explosion door, and an ammunition outlet is located on an ammunition barrel conveying device positioned above the ammunition-weighing ammunition-filling machine. The ammunition-weighing ammunition-filling machine is arranged on one side of the multi-station turntable, and an ammunition-flushing wiping device is arranged on the other side of the multi-station turntable. The inside of each ammunition-pressing chamber is also provided with a flow line, and a die delivery device which is the same as the die delivery device in each ammunition-filling chamber, a multi-station turntable which is the same as the multi-station turntable in each ammunition-filling chamber, an ammunition sleeve lifting device and an ammunition conveying mechanical hand which is the same as the ammunition conveying mechanical hand in each ammunition-filling chamber are sequentially arranged on the flow line. A pressing machine and an auxiliary device are arranged on one side of each multi-station turntable. The three-level type automatic ammunition-filling ammunition-pressing production line can be widely used for production of dangerous articles which are inflammable and explosive.
Owner:廊坊智通机器人系统有限公司
Xen-oriented memory sharing security isolation method for virtual machines
InactiveCN104573553AImprove usabilityUse will not affectDigital data protectionInternal/peripheral component protectionVirtualizationOpen source
The invention discloses a Xen-oriented memory sharing security isolation method for virtual machines, belongs to the technical field of virtual security, and particularly relates to the field of memory sharing security improvement for Xen virtual machines. The Xen-oriented memory sharing security isolation method has the advantages that the Xen-oriented memory sharing security isolation method is used for open-source software Xen of the virtual machines; existing memory sharing mechanisms of the open-source software Xen are analyzed, and can be extended and additionally provided with mandatory access control modules on the basis of security frames XSM (Xen security modules) of the open-source software Xen on the premise that influence on normal use of other functions of the open-source software Xen is prevented, the memory sharing authority is required to be checked when memories are about to be shared, only memory sharing operation which meets specific access control rules can be authorized, and accordingly the purpose of monitoring the memory sharing security of the virtual machines can be achieved.
Owner:706 INST SECOND RES INST OF CHINAAEROSPACE SCI & IND +1
Software upgrading method based on OTA upgrading system and OTA upgrading system
ActiveCN110597538AGuaranteed safe isolationPrevent replay attacksDigital data protectionProgram/content distribution protectionSoftware engineeringSoftware upgrade
The embodiment of the invention provides a software upgrading method based on an OTA upgrading system and the OTA upgrading system, and the method comprises the steps that a package issuing unit encrypts a software package to obtain an encrypted software package, and generates metadata for the software package; a package issuing unit sends the encrypted software package to the downloading unit andsends the metadata to the upgrading service unit; an upgrading service unit acquires a vehicle certificate sent by a vehicle, encrypts the metadata by adopting the vehicle certificate to obtain encrypted metadata, and sends the encrypted metadata to the vehicle; enthe vehicle decrypts the encrypted metadata by adopting a preset vehicle private key, and verifies the legality of the metadata; if the metadata is legal, the vehicle acquires the encrypted software package from the downloading unit and decrypts the encrypted software package according to the metadata; the vehicle verifies the legality of the software package according to the metadata; and if the software package is legal, the vehicle is upgraded by adopting the software package. According to the embodiment of the invention, theproblems of tampering and replay attacks of the software package can be prevented.
Owner:GUANGZHOU XIAOPENG MOTORS TECH CO LTD
Method and device for enhancing security of application software
ActiveCN102254123AProtection securityEnsure safetyPlatform integrity maintainanceOperational systemSecurity domain
The invention relates to the technical field of software security, and discloses a method and device for enhancing security of application software. The method comprises the following steps: establishing a virtual security domain for each protected application software in an operation system; mapping the application process, required resources and security requirement of the protected applicationsoftware into a subject, an object and intra-domain security attribute corresponding to the application software, and respectively mapping other processes in the operation system into an extra-domainsubject and an extra-domain object; trapping a resource request transmitted by the application process in the operation system; and controlling the access of the subject, mapped by the application process, to the subject which is mapped by the required resource according to the resource request permission and the intra-domain security attribute. By adopting the scheme of the invention, the security of the application software can be ensured on the basis of not influencing the operation efficiency of the software or re-deploying the application software and the service system in which the application software is positioned.
Owner:深圳市安盾椒图科技有限公司
Online real-name certification system for online medical system and certification method of online real-name certification system
ActiveCN103236933AOvercome limitationsAvoid manual reviewUser identity/authority verificationSide informationCiphertext
The invention discloses an online real-name certification system for an online medical system and an online real-name certification method of the online real-name certification system. The online real-name certification system comprises a registration client side module, a real-name certification module and a hospital side information collection module, wherein the registration client side module is used for inputting and encrypting basic identity information of a user per se by the user, the hospital side information collection module is used for encrypting the collected basic identity information, the real-name certification module is used for carrying out consistency matching for cipher texts from the registration client side module and the hospital side information collection module and obtaining additional information corresponding to the user for the matched cipher texts, the additional information is provided by the hospital side information collection module, authentication information is provided by the user, the real-name certification is passed if the authentication information is matched with the additional information, otherwise, the real-name certification is not passed, and a real-name certification result can be sent to the registration client side module by the real-name certification module. According to the online real-name certification system and the online real-name certification method which are disclosed by the invention, quick and efficient effects are realized, user privacy is effectively protected, and the correspondence to the real-name certification of medical mechanisms related to all online medical systems can be realized by one-time certification pass.
Owner:陈勇
System and method for improving video investigation efficiency on basis of multi-network data fusion application
InactiveCN107967348AImprove detection efficiencyGuaranteed safe isolationWeb data indexingSpecial data processing applicationsIntranetMobile client
The invention discloses a system and method for improving the video investigation efficiency on the basis of multi-network data fusion application, and relates to the field of image video investigation and network communications. According to the system, the police intranet, video private network and Internet all access a platform through a security boundary for communication and interaction; thepolice intranet deploys a video investigation cooperative combat platform; the video private network deploys a video investigation combat platform; the Internet deploys a video investigation combat platform mobile client; the security boundary accesses the platform to provide the security of the whole intranet and the access function of an outer network. Accordingly, investigators do not need to browse massive amounts of video, and the investigation efficiency is improved; the purpose that information is shared on the police intranet, and meanwhile security isolation of the intranet is guaranteed; the problem that the massive amounts of video accesses the police intranet, and the efficiency is affected by bandwidth limitation of the police intranet is avoided; information sharing is achieved; the purpose that multiple types of police handle cases cooperatively is achieved.
Owner:武汉众智数字技术有限公司
Method and system for user account project management
ActiveCN104852965AGuaranteed safe isolationEasy to manageTransmissionProject managementApplication software
The invention discloses a method and a system for user account project management. The method comprises: acquiring user project mapping relations, acquiring case information of cases generated by operating an application program on a physical machine; according to the user project mapping relations and the case information, determining to-be-deployed cases, to-be-deployed projects, to-be-deployed users, to-be-deployed physical machines, and to-be-deployed files; determining the to-be-deployed physical machines have user accounts related to the to-be-deployed users and user account groups related to the to-be-deployed projects, determining the user account groups related to the to-be-deployed projects on the to-be-deployed physical machines comprise the user accounts related to the to-be-deployed users, and the user account groups related to the to-be-deployed projects being arranged to have operating authorization on the to-be-deployed cases and the to-be-deployed files. The method provides a management scheme for users to visit corresponding cases, thereby ensuring safe isolation among projects and making users manage application programs more conveniently.
Owner:BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1
Digitalized optical fiber voltage transformer
InactiveCN102680758ABandwidthLarge dynamic rangeVoltage/current isolationAnti jammingElectrical battery
The invention discloses a digitalized optical fiber voltage transformer which comprises a voltage sensor positioned at the top of a vehicle, an A / D (Analog / Digital) converter, a control processing unit, a power supply module and a signal receiving unit positioned in the vehicle, wherein the control processing unit is connected with the signal receiving unit through a communication optical fiber; the voltage sensor is used for acquiring a signal from a power grid, is a voltage division type voltage sensor and is formed by connecting high-voltage impedance with low-voltage impedance in series; the A / D converter is connected with the low-voltage resistance in parallel; the input end of a power supply is connected with the low-voltage resistance in parallel; and the signal receiving unit receives an optical signal transmitted by the communication optical fiber and converts the optical signal into a voltage signal. According to the digitalized optical fiber voltage transformer disclosed by the invention, due to the adoption of the voltage division type voltage sensor, no external power supply and battery are needed; the output end of the digitalized optical fiber voltage transformer is in communicated connection with a vehicle-mounted device through an optical fiber, strong anti-jamming capability is obtained and complete electrical isolation can be realized. The digitalized optical fiber voltage transformer can replace an original traditional transformer for a locomotive and is especially suitable for electric locomotives (including urban rail locomotives).
Owner:HUAZHONG UNIV OF SCI & TECH
A large power wide range adjustable DC linear voltage regulated power supply
PendingCN109067209AImprove performanceReduce distractionsEfficient power electronics conversionEmergency protective circuit arrangementsPower factorComputer module
The invention relates to the field of voltage stabilized power supply, in particular to a high-power wide-range adjustable DC linear regulated power supply, which includes a switching power input circuit, an auxiliary switch power supply circuit, the power factor compensation boost circuit, the isolated power conversion circuit of the switching power supply, the voltage and current controllable BUCK circuit and the load voltage and current display circuit. By the cooperatively connected circuit modules, the invention solves the problems of narrow voltage regulation range, small power and bulkyof the existing DC linear voltage stabilized power supply.
Owner:严添明
Efficient and safe image data network one-way physical channel importing system and application thereof
InactiveCN103905467AGuaranteed safe isolationGuaranteed to be absolutely unidirectionalDigital data protectionTransmissionComputer moduleData exchange
The invention discloses an efficient and safe image data network one-way physical channel importing system and the application of the efficient and safe image data network one-way physical channel importing system. The efficient and safe image data network one-way physical channel importing system comprises an outer network device, a one-way dedicated exchange passageway and an inner network device. The outer network device comprises an outer network server and a sending sub-system. The one-way dedicated exchange passageway comprises a sent-data exchange card, a one-way signal transmission module and a received-data exchange card. The inner network device comprises a receiving sub-system and an inner network server. By the adoption of the efficient and safe image data network one-way physical channel importing system and the application of the efficient and safe image data network one-way physical channel importing system, it can be guaranteed that a physical channel is absolutely unidirectional, and the importing system is suitable for deployment between networks at different safety levels; in this way, safety isolation of the multiple networks is guaranteed, and meanwhile efficient and reliable data unidirectional transmission can be achieved.
Owner:绍兴市公安局
Variable multifunctional embedded roadside motorized parking space
ActiveCN109519017AMeet the needs of large traffic flowMeet parking needsTraffic signalsRoad signsMonitoring systemParking space
The invention discloses a variable multifunctional embedded roadside motorized parking space which comprises a ground marking system, a lane function indicating system and a roadside parking space display and monitoring system. The parking space has the advantages of being variable and multifunctional, wherein the variable advantage is characterized in that the parking space is used for passage ofmotor vehicles during the daytime to meet the demand for large traffic flow during the daytime and used for parking on the roadside at night to meet the demand of parking on the roadside at night; the multifunctional advantage is characterized in that the parking space is used as a motorway during the daytime and as the roadside parking space and a motor vehicle and non-motor vehicle isolation belt at night.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
Implementation method and implementation system of security desktop transport protocol based on virtualization environment
InactiveCN111901414AImprove experienceImprove image processing capabilitiesData switching networksTransmission protocolGraphic card
The invention relates to an implementation method of a security desktop transmission protocol based on a virtualization environment, which comprises the following steps that: a virtual machine automatically detects a display card mode used by the virtual machine through a deployed agent program, selects image processing equipment to preprocess image data based on the display card mode, and transmits the preprocessed image data to a host machine; the host machine receives the image data from the virtual machine through a deployed server program and transmits the image data to the terminal equipment through a network; and the terminal equipment receives the image data from the host machine through a deployed client program and displays the image data. The invention further relates to an implementation system of the security desktop transport protocol based on the virtualization environment. The secure desktop transmission protocol provided by the invention can meet the requirements of various application scenes of a cloud desktop, can provide virtual desktop service similar to a local PC for a user, has excellent image processing performance, and brings powerful functions, high-resolution videos and rich peripheral VDI experience.
Owner:SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
Cable connector on-line monitoring system
InactiveCN104142182AIncrease speedImprove timelinessThermometer detailsNon-electrical signal transmission systemsTemperature senseEngineering
The invention discloses a cable connector on-line monitoring system which comprises a plurality of temperature sensing chips, data acquisition units, a high voltage isolation transformer, an upper computer and a CAN bus communication controller. The temperature sensing chips are connected with cable connectors respectively and used for obtaining current temperature signals of the cable connectors; the data acquisition units are connected with the temperature sensing chips respectively and used for collecting the current temperature signals obtained by the temperature sensing chips; the high voltage isolation transformer is respectively connected with a power source and the data acquisition units, enables the output voltage of the power source to be converted and outputs the isolation voltage to supply power to the data acquisition units; the CAN bus communication controller is respectively connected with the upper computer and the data acquisition units and enables all the current temperature signals collected by the data acquisition units to be transmitted to the upper computer.
Owner:STATE GRID CORP OF CHINA +1
Integrated power control device of liquefied natural gas power ship
InactiveCN103407567AReduce the risk of fireMeet functional requirementsPropulsion based emission reductionPower plants being motor-drivenAutomatic balancing valvesSolenoid valve
The invention discloses an integrated power control device of a liquefied natural gas power ship. The integrated power control device comprises an inclosed unit and a control unit, the inclosed unit comprises an inclosed chamber allowing a gas fuel pipeline to penetrate, a first automatic stop valve, a second automatic stop valve, a gas pressure-adjusting valve, a first automatic ventilating valve, a second automatic ventilating valve, a gas detector and a ventilating duct are arranged in the inclosed chamber, the control unit comprises a control chamber, an air pressure-adjusting valve, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve are arranged in the control chamber, and the air pressure-adjusting valve controls the first automatic stop valve, the second automatic stop valve, the first automatic ventilating valve and the second automatic ventilating valve through the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve respectively. The integrated power control device can balance controlling and safety protection of the LNG (liquefied natural gas) power ship, is high in adaptability, simple in structure and suitable for being widely applied to the technical field of the LNG power ship.
Owner:WUHAN UNIV OF TECH
Waterproof and drainage system and construction method of low-medium radioactive waste grotto type disposal site
ActiveCN106499416AImprove securityNo propagation mediumUnderground chambersDrainageOpen waterRadiation injury
The invention discloses a waterproof and drainage system and a construction method of a low-medium radioactive waste grotto type disposal site. The waterproof and drainage system comprises a seepage-preventing side wall and base plate and a waterproof ceiling, wherein the seepage-preventing side wall and base plate is located in a grotto and is U-shaped, the waterproof ceiling is in an inverted-U shape, the waterproof ceiling and the seepage-preventing side wall and base plate are in a buckled-closed state, a clay side wall and base plate is arranged on the inner side of the seepage-preventing side wall and base plate, waste buckets are arranged inside the clay side wall and base plate, an open water draining drain is formed in the outside of the seepage-preventing side wall and base plate and located below the end of the waterproof ceiling, a crane beam is arranged at the top of the seepage-preventing side wall and base plate and located inside the waterproof ceiling, a crane, a grouting pipeline and a spray nozzle are arranged on the crane beam, and a top arched embedded pipeline is arranged in a grotto top arch. The problem that a grotto protection structure existing in an existing project measure is simple and can only retard and reduce the release speed and amplitude of pollutants from a protective facility is well solved, and a series of problems including personal radiation injury and the like due to the grouting and vibrating construction in gaps among the waste buckets are solved.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES
Cloud disk data transmission method and device based on virtual encrypted disk
InactiveCN106254442AGuaranteed safe isolationPrevent leakageInternal/peripheral component protectionTransmissionData accessClient-side
The invention provides a cloud disk data transmission method and device based on a virtual encrypted disk. The cloud disk data transmission method based on the virtual encrypted disk comprises the steps of establishing the virtual encrypted disk of a client; receiving cloud disk data of the client returned by a cloud storage server and storing the cloud disk data to the virtual encrypted disk; directing a cloud disk data update request of an application of the client to the virtual encrypted disk by employing a file redirection method, thereby carrying out cloud disk data transmission, wherein the cloud disk data of the client is sent to the client by the cloud storage server according to a cloud disk data access request, and the application of the client is triggered by a cloud disk manager. According to the method provided by the embodiment of the invention, normal transmission of the cloud disk data is ensured, secure isolation of the cloud disk data is ensured, data is prevented from being leaked, and a securely isolated cloud disk application environment is established for a user.
Owner:BEIJING VRV SOFTWARE CO LTD
Cross-network security e-mail system
ActiveCN112019542AGuaranteed safe isolationFacilitate secure exchange requirementsData switching networksTransmission channelData transmission
The invention relates to a cross-network security e-mail system. The system comprises an entrance host B connected with a low-security-level network, and an exit host D connected with a high-security-level network. A one-way data transmission channel between the outlet host D and the internal host C is composed of a general optical transmission module and a single optical fiber and provides a response data return channel. The internal host C and the internal host A are connected through an optical transmission module and a single optical fiber, and the internal host A and the entrance host B are connected through an optical transmission module and a single optical fiber. A transmission channel of the data request is from the entrance host B to the exit host D. A data response transmissionchannel is from the outlet host D to the internal host C to the internal host A to the inlet host B. The entrance host B is responsible for receiving a request or data from a low-security-level network, and the exit host D sends the request or data to a high-security-level network, receives a response message from the high-security-level network, and does not receive a request actively initiated by the high-security-level network.
Owner:航天科工网络信息发展有限公司
Molten salt conveying system for solar photo-thermal power station
InactiveCN110701801AGuaranteed operational safetyReduce insecuritySolar heating energyHeat storage plantsPhysical chemistryMolten salt
The invention provides a molten salt conveying system for a solar photo-thermal power station. The molten salt conveying system comprises a molten salt heat absorption subsystem, a molten salt heat exchange subsystem, a high-position tank subsystem comprising a high-temperature molten salt storage tank and a low-temperature molten salt storage tank and a molten salt transmission subsystem; the molten salt transmission subsystem includes a high-temperature molten salt transmission subsystem and / or a low-temperature molten salt transmission subsystem; the high-position tank subsystem is connected to the molten salt transmission subsystem; the high-temperature molten salt transmission subsystem includes a high-temperature molten salt low-position tank; the installation height of the high-temperature molten salt low-position tank is smaller than that of the high-temperature molten salt storage tank; the volume of the high-temperature molten salt low-position tank is smaller than the volumeof the high-temperature molten salt storage tank; the low-temperature molten salt transmission subsystem includes a low-temperature molten salt low-position tank; the installation height of the low-temperature molten salt low-position tank is lower than that of the low-temperature molten salt storage tank; and the volume of the low-temperature molten salt low-position tank is smaller than the volume of the low-temperature molten salt storage tank. The molten salt conveying system solves the problems about construction cost, operation and maintenance cost and the like caused by using a vertical long-axis submerged molten salt pump, and hidden safety hazards in design of large and small tanks or high and low tanks are avoided.
Owner:ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
Access mode leakage prevention data safety isolation and sharing realization method
InactiveCN107343008AHidden access modeRealize data sharing functionTransmissionVirtualizationOriginal data
The invention discloses an access mode leakage prevention data safety isolation and sharing realization method. According to the method, based on physical isolation, the agent encryption technology is utilized to realize data safety isolation and sharing, an original data storage mode is changed, a binary tree storage mode is utilized to guarantee that an access mode in a data access process is not leaked, and user privacy can be successfully protected. The method is advantaged in that safety risks caused by data sharing among users, attack possibility existing in virtual resource pooling and no user access mode hiding in a cloud data storage scheme can be successfully solved, through agent introduction, the data sharing function among the users in a department is realized, data safety isolation among departments is guaranteed in a physical mode, data storage is realized through employing a binary tree mode, and a user access mode is successfully hidden.
Owner:SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
Fabricating method of transformer for float filament modulator in microwave power module
InactiveCN103325559AReduce volumeGuaranteed 10KV withstand voltage requirementsCoils manufactureMicrowaveLow voltage
The invention discloses a fabricating method of a transformer for a float filament modulator in a microwave power module, which reduces the size of the whole transformer through the winding technology and ensures the withstand voltage between low voltage and floating high voltage. According to the method, a traveling wave tube start positive power source wingding, a traveling wave tube stop negative power source winding, voltage stabilizing circuit + / -15V power supply windings and a filament heating voltage winding all of the modulator are wound on a framework in a layered manner; polyamide adhesive tapes are adopted for realizing layer isolation; the voltage stabilizing circuit + / -15V power supply windings of the modulator are wound on the same layer with the space of 2mm at least; a primary winding, a low voltage 15V power source winding and a low voltage 12V power source winding are wound on the outer layer of a high voltage side winding in a layered manner; the filament heating voltage winding layer is next to the primary winding layer; the filament heating voltage winding and the primary winding occupies the same width; at least five layers of polyamide adhesive tapes are wound between the filament heating voltage winding and the primary winding for isolation; finally, the framework for winding an enameled wire and a magnetic core are combined, placed into a die and sealed in an epoxy manner.
Owner:中国船舶重工集团公司第七二三研究所
High-voltage electric fire pump control cabinet with emergency mechanical pump starter
PendingCN110098576AOperational securityEasy maintenanceSwitchgear with withdrawable carriagePump controlHigh pressureFused core
The invention discloses a high-voltage electric fire pump control cabinet with an emergency mechanical pump starter. The control cabinet comprises a control cabinet body, the control cabinet body comprises a main cabinet and an auxiliary cabinet arranged in one side of the main cabinet, an FC control loop for control a fire pump is arranged in the main cabinet, and the FC control loop comprises anF fuse cart arranged in the middle portion of the main cabinet and connected with an inlet wire of a high voltage power supply, a C high voltage vacuum contactor arranged in the bottom of the main cabinet, and an emergency manual control mechanism arranged in the bottom of the auxiliary cabinet. The high-voltage electric fire pump control cabinet with the emergency mechanical pump starter is reasonable in design, the emergency manual control mechanism can be used to safely control work of the C high voltage vacuum contactor, use of the high voltage electric fire pump when a secondary controlloop is in failure is ensured, and convenient replacement of the F fuse core and safe maintenance of the C high voltage vacuum contactor are considered in design of the control cabinet.
Owner:广东长悦电气有限公司
High-voltage fixed-frequency voltage regulation and stabilization power system provided with intelligent control system
InactiveCN107134782AGuaranteed safe isolationRealize high voltage direct outputAc network voltage adjustmentVoltage regulationEngineering
The invention discloses a high-voltage fixed-frequency voltage regulation and stabilization power system provided with an intelligent control system, comprising a control system, a high-voltage input switch, a segmentation transformer, a power unit group, a filter, a high-voltage output switch, and an isolation transformer. The high-voltage input switch, the segmentation transformer, the power unit group, the filter, the high-voltage output switch and the isolation transformer are connected with the control system. The high-voltage input switch is connected with the segmentation transformer. The segmentation transformer is connected with the power unit group. The power unit group is connected with the filter. The filter is connected with the high-voltage output switch. The high-voltage output switch is connected with the isolation transformer. The power units in the power unit group are connected in series in a star shape. The high-voltage fixed-frequency voltage regulation and stabilization power system provided with an intelligent control system has the advantages of simple structure, strong applicability, reliability, stability, and efficient and timely voltage regulation.
Owner:上海港蓝环保科技有限公司
Plate type preheater for acid bath, flash evaporation device of plate type preheater for acid bath and alkaline cleaning process
ActiveCN104499067AIncrease heat transfer areaIncrease profitArtificial filament recoveryArtificial thread manufacturing machinesFiberEngineering
The invention belongs to the field of chemical fiber production equipment and discloses a plate type preheater for acid bath, a flash evaporation device of the plate type preheater for acid bath and an alkaline cleaning process. The plate type preheater for acid bath comprises a preheater plate integration part, a preheater upper cover and a preheater shell, the preheater upper cover and the preheater shell are provided with a preheater steam inlet and a preheater condensate outlet, the preheater steam inlet is formed above a steam-side seam of the plate integration part, and the preheater condensate outlet is formed below the steam-side seam of the plate integration part. The flash evaporation device of the plate type preheater for acid bath takes the plate type preheater for acid bath as the preheater fittingly used with a quick alkaline cleaning process, the problems of insufficient circulation sectional area of low-pressure secondary steam, rapid decline of flash evaporation performance and the like caused by blockage of plate seams and sulfide scaling formation due to sulfide and colloidal particles when the plate preheater is used for acid bath preheating are solved, steam-water ratio of the flash evaporation device is smaller than 0.2, and about 40% of steam is saved as compared with that of a traditional flash evaporation device.
Owner:许戈红
Observation window device applied on shield machine
The invention relates to an observation window device arranged on a tunnel boring machine (TBM). The outline of the observation window is a disc; the observation window successively comprises a glass cover, lenses, a blank cap and a safety plug from front to back, and the periphery thereof comprises a base board flange, a positioning flange, a supported flange, a sheath and a strengthening ring. The base board flange is a hollow flange ring and is in combined welding with a cabin door by using the cabin door as a base; the glass cover, lenses, the blank cap, the safety plug, the positioning flange and the supported flange are coaxially installed and fixed by screws; and all joints are sealed by rubber gaskets and the like. The device applied on a shield machine is special equipment established for observing the state of the structure of the soil body in a soil chamber before builders need to enter the soil chamber to manually remove barriers and replace tools, and judges whether opening the door and entering the chamber is safe or not according to the observed soil body in the soil chamber so as to prevent disasters for the operating personnel entering the chamber and the whole construction site caused by collapse, onrush water, onrush sand and the like of an excavation face. The device has simple structure and easy use.
Owner:上海地铁盾构设备工程有限公司
Built-in type switch cabinet
ActiveCN103915777AImprove isolationIncrease contactBus-bar/wiring layoutsSwitchgear with horizontal withdrawalElectricityBusbar
The invention discloses a built-in type switch cabinet. The built-in type switch cabinet comprises a cabinet body and a circuit breaker. The cabinet body is provided with a front cabinet plate; the cabinet body is internally provided with a three-phase static contact unit; the static contact unit comprises an upper static contact and a lower static contact; the upper static contact is electrically connected with a main busbar; the lower static contact is electrically connected with a branch busbar; the circuit breaker is provided with a three-phase moving contact unit; the moving contact unit comprises an upper moving contact and a lower moving contact; the three-phase static contact unit is arranged in tandem; the three-phase moving contact unit is arranged in tandem; the circuit breaker can be pushed into the cabinet body from the front of the cabinet and can move to the left and right between a test position and a work position; each phase of moving contact unit and each phase of static contact unit of the circuit breaker at the work position are contacted and electrically connected; and the front cabinet plate is provided with an observation window. The advantages are as follows: user operation is carried out in front of the cabinet, contact states can be observed through the observation window during operation, good isolation or contact is ensured, safety hidden risks are avoided, the performance is improved, the cost is reduced, and the reliability and safety are improved.
Owner:施耐德电气(厦门)开关设备有限公司
Three-level type automatic ammunition-filling ammunition-pressing production line
Owner:廊坊智通机器人系统有限公司
Variable multifunctional embedded roadside motorized parking spaces
ActiveCN109519017BMeet the needs of large traffic flowMeet parking needsTraffic signalsRoad signsParking spaceTraffic flow
The invention discloses a variable multifunctional embedded roadside motorized parking space which comprises a ground marking system, a lane function indicating system and a roadside parking space display and monitoring system. The parking space has the advantages of being variable and multifunctional, wherein the variable advantage is characterized in that the parking space is used for passage ofmotor vehicles during the daytime to meet the demand for large traffic flow during the daytime and used for parking on the roadside at night to meet the demand of parking on the roadside at night; the multifunctional advantage is characterized in that the parking space is used as a motorway during the daytime and as the roadside parking space and a motor vehicle and non-motor vehicle isolation belt at night.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
A Load Distribution and Control Circuit of Speed Controller for Diesel Generator Set
InactiveCN103138284BAutomatically adjust output voltageAutomatic frequency adjustmentSingle network parallel feeding arrangementsSignal conditioning circuitsLoad distribution
The invention discloses a load distribution and control circuit of a diesel generating set speed controller. The load distribution and control circuit of the diesel generating set speed controller is composed of a load detection circuit module, a signal conditioning circuit module and a speed reduction control circuit module, wherein the load detection circuit module is composed of three groups of circuits. According to the load distribution and control circuit of the diesel generating set speed controller, through collection of voltage signals and current signals of each generator, output voltage, frequency and phase angles between generator sets are automatically adjusted, synchronization, automatic switching-on and connection to a grid of the different generator sets are realized, and impacts due to combination of the generator sets are effectively avoided. The load distribution and control circuit of the diesel generating set speed controller can realize load distribution and balance control when the multiple diesel generators are connected to the grid and in operation, wherein the load distribution and balance control includes the synchronization of power supply frequency of all the diesel generators in a grid-connected system and the load distribution and the balance among the different generator sets, and therefore the power supply quality and the power supply reliability of the grid-connected generator sets are improved.
Owner:NO 70 INST OF CHINA NORTH IND GRP
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