41results about How to "Meet the needs of safe operation" patented technology

The invention relates to an automatic train protection system and method based on image identification and multi-perception fusion. The automatic train protection system comprises an image collection unit (1), an image processing unit (2), a multi-perception fusion processing unit (3), an auxiliary perception unit (4) and an early warning result output unit (5), wherein the image collection unit (1), the image processing unit (2), the multi-perception fusion processing unit (3) and the early warning result output unit (5) are connected in sequence; the auxiliary perception unit (4) is connected with the multi-perception fusion processing unit (3). Compared with the prior art, the automatic train protection system and method based on image identification and multi-perception fusion can be adapted to complex conditions appearing in urban mass transit operation lines, the safe protection of a train is automatically realized according to the practical condition of a line, and the operation safety of urban mass transit is greatly improved.

The invention discloses a real-time power generation plan optimization method with consideration of depth peak regulation of a thermal power generating unit. The method comprises: various power system operation data needed by an existing real-time power generation plane model and related parameter information of depth peak regulation of a thermal power generating unit are obtained, wherein the related parameters include a depth peak regulation discrete output point, a discrete point price, a minimum depth peak regulation time length, and a minimum non-depth peak regulation time length; on the basis of the existing real-time power generation plan model, a related depth peak regulation constraint of the thermal power generating unit is introduced, and a real-time power generation plan optimization model with consideration of depth peak regulation of the thermal power generating unit is generated based on the data obtained at the previous step; and optimized calculation and security checking are carried out on the optimization model to obtain a real-time power generation plan. According to the invention, the output level of the thermal power generating unit in a depth peak regulation state can be optimized automatically based on the ultra-short-term system load and new energy changing situations; on the basis of real-time cooperation with other energy, the power usage demand of the system can be satisfied; and maximum receiving of the system new energy and peak regulation requirements can be met.

The invention belongs to the technical field of dispatching automation of an electric power system, and relates to a day-ahead generation schedule optimization method considering thermal power and electric thermal storage combined peaking. Based on day-ahead generation schedule planning input data, on the basis of a conventional optimization model, relevant parameters of thermal power generating unit deep peaking and electric thermal storage energy storage peaking are maintained, relevant constraint conditions of thermal power generating unit deep peaking and electric thermal storage energy storage peaking are introduced, and a day-ahead generation schedule optimization model, namely an SCED model, considering thermal power and electric thermal storage combined peaking is formed; through the optimization model, the future operation condition of a power grid can be combined, a more reliable and effective thermal power and electric thermal storage energy storage active plan is programmedunder the condition that system new energy consumption capacity and system load peaking requirement are sufficiently evaluated, the unit planning implementation rate is improved, the system peaking pressure is alleviated, the maximum consumption of new energy is realized, and the increasingly refined large power grid safety operation requirement is met.

The invention, which belongs to the technical field of the electrical power engineering, particularly relates to a construction method of a resistance reduction and grounding device of a transformer station. The method comprises: a surveyor measures a soil resistivity, a frozen soil depth, and a soil layering situation in a site area of a transformer station to obtain surveying data; a soil model is established according to the surveying data; on the basis of the soil model, a grounding device inside the station is designed in the site area of the transformer station; safety verification is carried out on the grounding device designed at the last step so as to obtain a verification result; if the verification result meets the requirement, a next step is executed; if the verification result does not meet the requirement, a grounding device is arranged externally outside the site area of the transformer station and safety verification is carried out; the verification result is stored; a construction drawing is drawn; and construction is carried out by organizing people. Under the circumstances that no extra collected land is increased, the construction method of the resistance reduction and grounding device of the transformer station is provided. The construction method has characteristics of obvious resistance reduction effect, simple structure, convenient construction, and low cost and the like.

The invention discloses a day-ahead power generation plan optimization method based on thermal power fusion and electric energy storage combined peak shaving. The day-ahead power generation plan optimization method comprises the following steps: S1, acquiring relevant parameter information of deep peak regulation and electric energy storage bidirectional peak regulation of a thermal power generating unit, and generating a day-ahead power generation plan calculation scene of thermal power fusion and electric energy storage combined peak regulation in combination with various parameter information required by a day-ahead power generation plan; S2, generating a day-ahead power generation plan optimization model of thermal power fusion electric energy storage combined peak regulation accordingto the parameter information in S1; and S3, carrying out optimization calculation and safety check on the day-ahead power generation plan optimization model of thermal power fusion electric energy storage combined peak regulation generated in the S2 to obtain a day-ahead power generation plan, and clearing the price of a peak regulation auxiliary service market. The day-ahead power generation plan optimization method can improve the day-ahead plan execution rate, promote the new energy consumption and meet the increasingly lean large power grid safety operation demands under the condition offully evaluating the next-day new energy consumption capability and the system load peak regulation demands in combination with the next-day power grid operation mode.

The invention provides a substation grounding network inclined shaft resistance reduction technology. The technology is achieved through the following steps that a, reconnaissance is conducted, and the number of inclined shafts, the extending direction and the laying length are determined according to the surrounding geological conditions; b, the drill bit drilling angle and the buried depth are determined; c, inclined shaft drilling is conducted, and the drilling is controlled in the shaft drilling direction and commanded through a computer according to the lateral force deviation rectifying principle so as to conduct rectification at any time; d, a drill bit is drilled back to the ground at the preset position, and a thermal galvanized circular steel pipe is fixed to the drill bit pulled out of the ground; e, the thermal galvanized circular steel pipe is pulled back to one inclined shaft through a reamer and a transfer case; meanwhile, physical type resistance reducing agents are pumped into the steel pipe through a diesel engine water pump in a high pressure mode so as to reduce the resistance of the drill bit; f, pulling is conducted while pouring is conducted, a drill rod is detached at the constant speed, and the resistance reducing agents are evenly poured into the inclined shaft. By means of the substation grounding network inclined shaft resistance reduction technology, the problem that the ground resistance can still not meet the technological requirements after a substation is laid with a composite ground network, the ground resistance is made to meet the design requirements, and safe operation requirements of a power grid are met.

The invention relates to an automatic checking method for generator set grid-related protection and limitation. The method is suitable for large-scale power system stable simulation, and based on grid topology, the basic trend, dynamic component parameters and the grid-related protection constant value, a grid-related protection and limitation model is automatically generated, according to different running modes, a failure set is automatically formed, cooperative relationship static checking and time-domain simulation dynamic checking of generator set grid-related protection and limitation can be automatically achieved, and a corresponding checking result is given. According to the method, the problem that in an existing power system stable simulation program, the generator set grid-related protection and limitation automatic checking function is lacked is solved, and it is ensured that set grid-related protection can adapt to changes of the power grid running mode, and the method can be in best fit with an automatic device. On the basis of ensuring set safety, the dynamic adjusting capability can be fully developed, and the powerful support can be provided for safe and stable running of the power grid.

The invention provides an overflow face protection method in which shock-and-abrasion resistant protection processing is performed on a concrete surface of an overflow face of an overflow dam. The overflow face protection method includes step 1, firstly grinding and repairing the concrete surface, above water surface, of the overflow face; step 2, smearing a polyuria coating on the concrete surface, above the water surface, of the overflow face; step 3, when a power unit halts and water level of the overflow face of the overflow dam falls back, grinding and repairing the concrete surface, exposed after the water level falls back, of the overflow face; step 4, smearing a high-tenacity epoxy coating on the concrete surface, exposed after the water level falls back, of the overflow face. By the overflow face protection method, the problems of denudation and cracking existing on the concrete surface of the overflow face of the overflow dam can be solved, structural safety of the overflow face can be guaranteed, and the overflow face can meet requirements on safe operation of the overflow dam.

The invention relates to a high-performance current transformer intelligent analyzer, which is applied to a saturation characteristic test for a transient state current transformer, direct tests for a sleeve current transformer and a current transformer in GIS and all parameter tests for all conventional transformers, and belongs to the technical field of current transformer test instruments. During voltage current characteristic tests for the transient state current transformer and a conventional high saturation characteristic transformer, because only the output frequency needs to be changed during the tests, the intelligent analyzer can perform the test on the transient state current transformer of which the saturation voltage is 15,000 kilovolts when the maximum amplitude value is 120 volts, and change the blank that at present no domestic equipment performs test on a transient sate winding; besides, the instrument output test voltage is low, which cannot cause potential safety hazards to the equipment and the personal safety; and because a booster transformer (generally, the weight of a transformer is tens of kilograms) for boosting is not needed, the weight of equipment to be tested is greatly reduced.

An integrated temperature measuring device for main transformer accessories, belonging to the field of transmission facility temperature measuring devices, comprises a pedestal, a transverse slide carriage moving left and right, a vertical slide carriage moving front and back, an outer rail, an inner rail, and a slide carriage. The rear end of the top surface f the vertical slide carriage is provided with a column. The column is provided with a third motor, and the third motor fits a leading screw slide block mechanism through the outer rail. The outer rail is equipped with an arc inner wall having inner teeth. The inner rail is equipped with outer teeth. The outer rail is fixedly connected to the inner rail. A driving motor for installation of a planetary gear is disposed below the slide carriage. The planetary gear engages with the outer rail and the inner rail. An installation stand equipped with an infrared imaging instrument is arranged on the top surface of the slide carriage. Motors and the infrared imaging instrument are connected to a central control chamber via a microprocessor. Through a computer control technology, temperature measurement points are measured at a fixed position and time by controlling the motors to adjust the left, right, front, back, up and down positions of the infrared imaging instrument, and operators do not need to arrive at a site and hold the infrared imaging instrument to record temperature measurements. Therefore, the temperature measuring efficiency is increased, and the labor intensity of operators is effectively reduced.

The invention is applicable to the technical field of train braking, and provides a train braking force distribution method and device and terminal equipment, and the method comprises the steps: obtaining road parameters of a road section where a train is located; according to the road parameters, calculating weights corresponding to different braking force distribution modes respectively; acquiring braking force corresponding to each wheel shaft when different braking force distribution modes are adopted to distribute the braking force; calculating comprehensive braking force corresponding to each axle in the train according to the weights corresponding to the different braking force distribution modes and the braking force corresponding to each axle when the different braking force distribution modes are adopted for braking force distribution; and distributing the braking force of each axle of the train according to the comprehensive braking force corresponding to each axle in the train. According to the invention, the weights of different braking force distribution modes can be obtained according to the road section where the train is located, so that the braking force distributed to each axle of the train is better matched with the road section where the train is located, and the requirement of safe operation of the train is met.

The present invention provides a grid planning method based on the stochastic dual dynamic theory. The method comprises the steps of establishing a grid planning mathematical model, selecting a grid operation scene, solving a grid planning mathematical model, checking the grid operation scene, and using the stochastic dual dynamic theory to optimize the grid planning mathematical model. According to the invention, a load uncertainty and a renewable energy uncertainty are considered, the renewable energy utilization rate is considered, thus a renewable energy access requirement can be satisfied by a planning scheme, the feasibility of the grid planning in different scenes is considered, thus the planning scheme has strong robustness, the N-k safety verification is considered comprehensively, the safety operation requirement can be satisfied by the planning scheme, the SDDP theory is used to establish a grid planning mathematical model under the circumstance of uncertainty, the Bender decomposition method is employed to solve the grid planning mathematical model, and the solving difficulty is reduced.

The present invention discloses an underwater bridge pier detection device and method based on supersonic sounding and three-dimensional reconstruction technologies. The device comprises an ultrasonic sensor array module, a data collection module, a lifting control device, a lower computer and an upper computer. The ultrasonic sensor array module is configured to cling to a detected pier; the lifting control device is configured to control the ultrasonic sensor array module to move up and down; the data collection module is configured to perform collected data transmission and then transmit the data to the lower computer; a lower computer control module is configured to control the lifting control device and measure the up-down movement distance of the ultrasonic sensor array module along the vertical direction of the bridge pier; and the lower computer fuses the data collected by the data collection module and transmits the fused data to the upper computer through a communication module, and the upper machine analyzes the data through a related algorithm to obtain a bridge pier detection result. The detection process does not need diving operation and is relatively safe; the method is simple in system principle, simple to operate and visual and reliable in test result, and accords with the requirement for guaranteeing safe operation of road bridges.

The invention discloses a real-time online monitoring system for the wear conditions of brake pads of a motor train unit. The real-time online monitoring system comprises a plurality of displacement sensors, a plurality of spokes / shaft front-end machines, a plurality of motor train unit carriage monitoring extensions and a motor train unit monitoring host; the motor train unit monitoring host is connected with each motor train unit carriage monitoring extension, the motor train unit carriage monitoring extensions are connected with the corresponding spokes / shaft front-end machines, and the spoke / shaft front-end machines are connected with the corresponding displacement sensors; the left side and the right side of each wheel disc type disc brake caliper is each provided with a distance measuring sensor, the left side and the right side of each shaft disc type disc brake caliper are each provided with a distance measuring sensor, when air braking is carried out on a motor train unit, thedistance measuring sensors installed on the brake calipers are close to brake discs, and the distance between the each brake caliper and the corresponding brake disc is measured; and eddy current sensors installed on the brake calipers are used for measuring the travel distance to be compared with the distance of a new brake pad, when the travel distance is larger than a set value, the monitoringsystem gives an alarm. The wear conditions of the brake pads of the motor train unit can be monitored online in real time so that the safety of trains of the motor train unit can be ensured, and thepersonal and property safety of passengers can be guaranteed.

The invention relates to an anti-slip strengthening device construction method. The method comprises the following steps that geotechnical engineering reconnaissance is performed on an easily-sliding mountain to obtain rock stratum thickness information, mountain gradient information and earth surface elevation information to determine control point coordinate information of anti-slip piles when the anti-slip piles are arranged; drilling operation is performed at the corresponding position according to the control point coordinate information; the anti-slip piles are arranged in the drilled holes correspondingly, cement slurry is injected into the drilled holes, and the grouting pressure range in the grouting process is 0.6-0.8 Mpa; the adjacent anti-slip piles are connected through steel wire ropes to form a plurality of unit storage portions in an enclosing manner, and the unit storage portions are internally and fixedly provided with flexible grid meshes. The anti-slip strengthening device construction method is simple, construction efficiency is high, corrosion resistance is good, the construction cost is low, and the anti-slip strengthening device construction method is particularly suitable for application occasions where ionic rare earth resources are exploited with an in-situ leaching process and can meet the requirement for safe production of ionic rare earth mines.

The invention belongs to the field of test verification methods of mechanical connection, and particularly relates to a matching performance verification method of a ferrule joint and an instrument pipe for a nuclear power station. The method comprises the following steps that S1, selecting M groups of test pieces, wherein each group of test pieces comprises a first test piece, a second test piece, a third test piece, a fourth test piece and a fifth test piece, and each test piece is composed of a clamping sleeve connector and an instrument pipe; S2, performing an airtight test on the M groupsof test pieces; S3, performing a hydrostatic test on the M groups of test pieces; s4, performing a vibration test, a water pressure test and a bursting test on the first test piece; performing a tightening test and a hydrostatic test on the second test piece; performing pulse test, repeated assembly test and water pressure test on the third test piece; performing a bending fatigue test, a repeated assembly test and a hydrostatic test on the fourth test piece; performing a tensile test on the fifth test piece; S5, performing a limit assembly test and a hydrostatic test on the third test pieceand the fourth test piece; and if each test of the M groups of test pieces passes, the matching performance of the ferrule joint and the instrument pipe meets the application standard requirement of the nuclear power station.

The embodiment of the invention discloses an asset safety operation system, method and device. The specific embodiment of the asset security operation system comprises a data processing layer configured to collect information and logs of various on-cloud and under-cloud assets, and analyze the logs to obtain risk information; a security service layer which is configured to dispose the assets according to the risk information; a security display layer which is configured to output the asset information and the risk information; and a security hosting layer which is configured to receive a hosting request comprising at least one cloud account and uniformly hosting the at least one cloud account to a security account. According to the implementation mode, a security hosting system in a multi-cloud scene is constructed, and a multi-cloud scene security operation closed loop is realized through security visualization, security protection, threat detection and investigation response.

The invention relates to an automatic switching control method for a charge-discharge mode of an energy storage converter. The automatic switching control method comprises the steps of sampling a current and a voltage of a DC-side bus, a converter output current, a network-side output current and a network-side voltage, and calculating a network-side power in real time; performing PI adjustment control according to difference between a given network-side power and an instantaneous output power of a converter, and determining a value of a Id component of a network-side current to change an output power of the converter; and simultaneously monitoring a voltage and current value of an energy storage battery, limiting a DC-side voltage and current according to a mode needed to be switched so as to conform to the demand of safety running of the energy storage battery. According to the charge-discharge switching control method of the energy storage converter, provided by the invention, charging and discharging are achieved according to three modes of constant-direct current, a constant-direct voltage and a constant-alternating current power; undisturbed switching of the three modes is achieved according to mutual assignments of an integrator and an output register of each PI controller, a battery-side power and the network-side power are not abruptly changed, only one controller runsduring actual running, and parameter setting of the controller is facilitated.

The invention relates to an operation method of a double back-pressure double-rotor interchange type driving feed pump steam turbine. The operation method is implemented by adopting an operation system of the double back-pressure double-rotor interchange type driving feed pump steam turbine. The double back-pressure double-rotor interchange type driving feed pump turbine operation system comprisesan original feed pump turbine operation system and a high back-pressure feed pump turbine operation system which work in cooperation with each other; the original feed pump turbine operation system comprises an original feed pump turbine, a first low-pressure cylinder, a first condenser, a first heater, a first deaerator and a first steam-driven feed pump; the high back-pressure feed pump turbineoperation system comprises a high-back-pressure water feeding pump turbine, a second low-pressure cylinder, a second condenser, a second heater, a second deaerator and a second steam-driven feed pump; when a unit runs at high back pressure, a high back-pressure feed pump turbine running system is started; and when the unit operates at normal back pressure, the original feed pump turbine operationsystem before transformation is recovered to run.

The invention discloses a reinforcing structure and method of a double-cement tower in a coal gob area and aims at reinforcing a double-cement tower, keeping a favorable reinforcing deviation rectifying effect, meeting the requirement for safety operation of a line, reaching the operation standard of the line, realizing in-advance precaution and prevention of hidden dangers and keeping safety production. The adopted technical scheme is as follows: a strip-shaped foundation is poured on a double-cement tower foundation and is used as a foundation to be reinforced, a planar steel plate is embedded in the strip-shaped foundation and is fixedly provided with a plurality of groups of channel steel clinging to a pole body of the double-cement tower, the channel steel is provided with upright column channel steel fixedly connected with the pole body of the double-cement tower, the pole body of the double-cement tower is reinforced by using the channel steel and the upright column channel steel, meanwhile, a cross arm of the double-cement tower is supported by a U-shaped clamping slot in the top of the upright column channel steel, an insulator string which is hung by using a vertical steel cored stranded wire is hung at the lower end of every phase conductor of the double-cement tower, and a length-adjustable 45-DEG bracing wire is connected to the double-cement tower.

The invention relates to a method for building a three-variable (frequency, active power and time) coordinate system for a miniature power grid. The active power emitted by the miniature power grid serves as abscissa, and two lines perpendicular to the abscissa are made and respectively serve as an upper limit value and a lower limit value of the active power. The frequency of the miniature power grid serves as ordinate, and two lines perpendicular to the ordinate are made and respectively serve as an upper limit value and a lower limit value of the frequency. Four lines enables the coordinate system to be divided into nine regions, and time serves as vertical coordinate. Moreover, adjustment measures for entering into each region are set. The method improves the stability of frequency to maximum degree, and enables the power output of power generation equipment to be distributed reasonably. The method meets the requirements for active power management of the power grid, and meets the demands for the safe operation of electrical equipment. Compared with the prior art, the method reduces the operation complexity, guarantees the qualified frequency, is more intelligent, and meets the development requirements of an intelligent power grid better.

The present invention is applicable to the technical field of train braking, and provides a train braking force distribution method, device and terminal equipment. The method includes: obtaining road parameters of the road section where the train is located; Weight; obtain the braking force corresponding to each wheel axle when using different braking force distribution methods for braking force distribution; according to the weight corresponding to different braking force distribution methods and the corresponding braking force of each wheel axle when using different braking force distribution methods for braking force distribution, calculate The comprehensive braking force corresponding to each wheel axle in the train; the braking force of each wheel axle of the train is distributed according to the comprehensive braking force corresponding to each wheel axle in the train. The present invention can obtain the weights of different braking force distribution modes according to the road section where the train is located, and then better adapt the braking force distributed to each wheel axle of the train to the road section where the train is located, thereby meeting the requirements for safe operation of the train.

The invention provides a comprehensive and integrated temperature measuring device for an outdoor substation, which mainly solves the problems of heavy workload of temperature measurement, lack of pertinence, out-of-synchronization of operation and maintenance, and the like. It includes a fixing device, a height adjusting device and a rotating measuring device; wherein, the fixing device can fix the present invention on the knife gate mechanism mounting bracket, the height adjusting device includes a linear slide rail and a linear motor, and the rotating measuring device is realized under the drive of the linear motor The height is adjustable; the rotating measuring device includes a rotating shaft sleeve, a semi-circular cover, an infrared imager and a motor. The infrared imager is set at the center of the semi-circular cover. The shape cover is opened, the infrared imager faces the measurement point, and the rotating shaft sleeve drives the infrared imager to rotate to complete the scanning measurement of the measurement point; the infrared imager, linear motor and motor are all controlled by the microprocessor. It can realize temperature measurement data collection and analysis, improve work quality and efficiency.

The invention discloses a mechanical interlocking device for mutual locking of a high-voltage switch circuit breaker and a grounding switch. The mechanical interlocking device comprises an operating lever assembly, a latch assembly, a grounding switch locking rod assembly and a circuit breaker locking assembly; the grounding switch locking rod is driven by the operating lever to lock the groundingswitch, and meanwhile, interlocking of the circuit breaker body is released; the circuit breaker locking rod pushes a circuit breaker locking sliding block to lock the interlocking spring bolt of thecircuit breaker body, and meanwhile the grounding switch operation hole shaft sleeve interlocking is released. Therefore, mutual locking between the circuit breaker and the grounding switch is realized. Five-prevention requirements of high-voltage switch equipment are met, operation and maintenance are safer, personal injury and property loss caused by human errors and misoperation can be prevented, and operation and maintenance requirements of a power system are met.

A multifunctional cone assembly comprises an outer cabin, a cabin head, a cabin cover and an illumination switch, wherein a feeler lever A and a feeler lever B are arranged in the outer cabin and connected with a cone rod and an electrical test pen respectively, a touch switch A and a touch switch B are arranged on the cabin cover, the touch switch A is connected with the feeler lever A, and the touch switch B is connected with the feeler lever B; a spring A is arranged between the feeler lever A and the touch switch A, a spring B is arranged between the feeler lever B and the touch switch B, and the spring A and the spring B are connected; a work hole A, a work hole B and a work hole C are formed in the cabin head. The invention aims to provide a design method of a production tool which is simple in design, has multiple effects, is shared and is convenient and safe to use.

The invention belongs to the technical field of dispatching automation of an electric power system, and relates to a day-ahead generation schedule optimization method considering thermal power and electric thermal storage combined peaking. Based on day-ahead generation schedule planning input data, on the basis of a conventional optimization model, relevant parameters of thermal power generating unit deep peaking and electric thermal storage energy storage peaking are maintained, relevant constraint conditions of thermal power generating unit deep peaking and electric thermal storage energy storage peaking are introduced, and a day-ahead generation schedule optimization model, namely an SCED model, considering thermal power and electric thermal storage combined peaking is formed; through the optimization model, the future operation condition of a power grid can be combined, a more reliable and effective thermal power and electric thermal storage energy storage active plan is programmedunder the condition that system new energy consumption capacity and system load peaking requirement are sufficiently evaluated, the unit planning implementation rate is improved, the system peaking pressure is alleviated, the maximum consumption of new energy is realized, and the increasingly refined large power grid safety operation requirement is met.

The invention relates to a method for automatic verification of network-related protection and limitation of a generating set, which is suitable for large-scale power system stability simulation; The network-related protection and limitation model can automatically form fault sets according to different operation modes, and automatically realize the static check of the coordination relationship between the generator set's network-related protection and limit and the dynamic check of time domain simulation, and give the corresponding check results. The present invention solves the problem of lack of generator set grid-related protection and limited automatic check function in the existing power system stability simulation program, ensures that the generator set grid-related protection can adapt to the change of the grid operation mode, and achieves the best cooperation with the automatic device; and On the basis of ensuring the safety of the unit, give full play to its dynamic adjustment ability and provide strong support for the safe and stable operation of the power grid.

The invention discloses analysis equipment and an analysis system for a spent fuel reprocessing plant. The analysis equipment comprises a sample receiving and transmitting shielding box chamber; the pretreatment shielding box chamber is connected with the sample receiving and sending shielding box chamber through a first channel, the side wall of the pretreatment shielding box chamber and the side wall of the sample receiving and sending shielding box chamber which are connected with the first channel are in sealed connection, and a first cover door used for opening and closing is arranged in the first channel; the analysis shielding box chamber is connected with the pretreatment shielding box chamber through a second channel, the side wall, connected with the second channel, of the pretreatment shielding box chamber and the side wall of the analysis shielding box chamber are connected in a sealed mode, and a second cover door used for opening and closing is arranged in the second channel. The equipment meets the requirement of personnel for safe operation, reduces unnecessary sample circulation, simplifies personnel operation, improves analysis efficiency, prevents electronic components of instruments from being damaged by radiation, and is convenient to overhaul and maintain.