122results about How to "Does not affect the process" patented technology

This invention discloses a method for updating the internal user group list of a terminal, which includes the following steps: the connection management status of a registered terminal is checked when an MME needs to update a CSG list of the registered terminal; when the check result indicates that the connection management of the terminal is in a connection status, the MME notifies the terminal to update the CSG list by sending a GUTI reassigning instruction message or a CSG list management message to the terminal; the terminal completes the update of the CSG list on the basis of the CSG list update parameters contained in the GUTI reassigning instruction message or the CSG list management message. The method of the invention has no influence on various current workflows and needs not to consider the location relationship of a base station and a household base station; the CSG list of user terminal can be updated in time by the network, the user terminal without relevant authority can be prevented from being accessed to the household base station which the user terminal is required to visit and the user terminal possessing the authority can be accessed to the household base station in time.

The invention relates to a method for producing Portland cement clinker with incineration slag of municipal solid waste. The method solves the problem of crust and blockage caused by chlorine through the reconstruction of the prior kiln which is realized by mounting a by-way air exhaust device. For a kiln system with a kiln row and a furnace row which are independent from each other, the by-way air exhaust device is arranged in an uptake of a kiln end gas chamber in the kiln row close to a five-stage cylinder; while for common industrial kiln, the air exhaust device is arranged between an outlet of decomposing furnace and an inlet of the five-stage cylinder or arranged at an uptake of an outlet of the five-stage cylinder; the fly ash passes through a kiln head, the kiln end gas chamber, or the decomposing furnace and then is sprayed into the kiln. The use frequency of the by-way air exhaust device is between once per four hours and once per three days, the temperature of the air entering the by-way air exhaust device is controlled to be more than 950 DEG C. the method has the advantages of small reconstruction investment, low treatment cost, production of Portland cement clinker having wide application range and meeting JC / T853-1999 standards of Portland Cement Clinker, realization of reclamation, contribution to the development of cyclic economy, and reduction in consumption of natural resources and energy of the cement industry.

The invention provides a polyimide nano fiber composite film which is of a sandwich structure composed of an upper polyimide film layer, a lower polyimide film layer and an intermediate polyamide acid nano fiber film layer. Compared with a common film, the material of the sandwich structure has excellent electrical properties of a polyimide film and has a low dielectric constant and good thermal stability, does not affect the following process and can be used in a flexible printed circuit or other electrical components; and meanwhile, as the polyimide nano fiber composite film has a low dielectric constant, electrical component density improvement and wiring spacing reduction are made possible. In addition, the invention further provides a preparation method and an application of the polyimide nano fiber composite film.

The invention relates to the field of the chemical industry, and especially relates to a preparation method of highly pure vanadium pentoxide. The method comprises the following steps: oxidizing tetravalent vanadium in back extraction water obtained in a total hydrometallurgical vanadium extraction process to form pentavalent vanadium; forming an oversaturated system of pentavalent vanadium, precipitating to obtain a polyvanadic acid precipitate, carrying out solid-liquid separation to separate a solution containing a high content of impurities, washing the polyvanadic acid precipitate, adding the washed precipitate to a sulfuric acid solution, carrying out heat insulation uniform stirring, and adding an ammonium bicarbonate solution to prepare a highly pure product, wherein polyvanadic acid gradually forms a polyammonium vanadate precipitate having a lower solubility due to the solubility of polyammonium vanadate is less than the solubility of polyvanadic acid; and calcining the polyammonium vanadate precipitate to generate vanadium pentoxide. The method has the advantages of no influences on present technologic main flow or production equipment, short production flow, low production cost, and no leakage or environmental protection due to closed circular running of the highly pure vanadium pentoxide production flow and original flow. 3000t of the highly pure vanadium pentoxide can be produced yearly.

An energy saving anode used in electro-deposition of nonferrous metal is characterized in that the energy saving anode used in electro-deposition of nonferrous metal comprises a metal-conductive base-plate and at least one block of composite structure which is compounded by a metal layer with porous structure, wherein the structure is frame type, sandwich type and slab lattice type. The energy saving anode not only can effectively reduce true current density of the anode in electro-deposition of the nonferrous metal, reduce overpotential for oxygen evolution of the anode and lower energy consumption, but also can reduce the quality of the anode, reduce the creep deformation and the deformation of the anode, form a more dense oxydic film on the surface, reduce the corrosion rate of the anode, extend the service length of the anode and improve the quality of the cathode products. The energy saving anode can make a full use of the existing anode without changing the structure of the groove and have no effect to the process flow, and the energy saving anode has low preparing cost and low investment.

The invention provides a high-durability fiber grating scouring sensor which comprises a metal shell and a measuring part arranged in the metal shell and connected with the metal shell, wherein the measuring part is composed of a FRP uniform strength beam and two fiber gratings stuck on the upper and lower surfaces of the FRP uniform strength beam, the leading-out wire of the fiber grating passes through the metal shell and is educed, the inner wall of the metal shell is provided with a metal baffle plate provided with a calcium carbide, the lower part of the metal shell is provided with a dowel bar, a prepressing small-rigidity spring is arranged between one end of the dowel bar and the inner wall of the metal shell, and the other end of the dowel bar is provided with a FRP disc. The scouring sensor has the advantages of the high precision, the convenient arrangement and the adjustable range and resolution, and is applied to the foundation soil scouring monitoring of health monitoring of civil engineering structure and the foundation soil scouring monitoring of structural test.

The invention discloses a method for separating and recycling casting residues, which comprises the following steps: paving acidic metallurgy wastes being 13%-15% of primary casting residues into an empty residue tank; pouring the casting residues and residual molten steel into the residue tank; coating by adding 16%-30% of metallurgy wastes to the liquid level of the residue tank; standing by and waiting for the pouring of the casting residues and residual molten steel in the next residue tank; transporting the residue tank to a residue field for turning the residues and cooling, after the residue tank is full; naturally layering the residues and irons after cooling; separating the residues from the steel after crushing and magnetically separating; and respectively applying the residues and the steel to the subsequent technologies. The method has the advantages that: the present equipment and the low-cost wastes are utilized; the technology is simple; the separating efficiency of the residues and residual steel is obviously increased after the method is applied; the residue and steel separation can be realized in continuous casting intermission; the cost of the separating technology of the residues and the residual steel is greatly reduced; the occupied area and the environmental pollution are reduced; the use level and value of the waste steel in the residual steel are increased; and the method has higher popularizing and applying value in the industry.

The invention relates to a control method for a rotary washing machine, in particular to a drying judgment method for the rotary washing machine. The preset time includes t1, t2 and n; the temperature difference includes N, Delta Tmax and Delta Tmin; and the number of clothings is judged through comparing the difference between the T1 at t1 and the T2 at t2 with the N, and then the time of drying the clothings is selected according to the number of the clothings. According to the drying judgment method, the drying process is selected according to the number of the clothings, so that the energy is saved, and the drying judge accuracy is improved.

The invention discloses a method for preparation of GLP-1 polypeptide or an analogue thereof through MFH fusion protein and application of the GLP-1 polypeptide or the analogue thereof, and belongs to the field of biotechnology. The structural formula of the MFH fusion protein of the GLP-1 polypeptide or the analogue thereof is MFH-DP-H6-E7-PEP, wherein the MFH is a protein fusion vector, DP is a formic acid hydrolysis site, H6 is a histidine label, E7 is a special protease cutting site and PEP is the GLP-1 polypeptide or the analogue thereof. The DNA of the code DP-H6-E7-PEP is connected to pMFH plasmid to obtain pMFH-PEP plasmid and then the pMFH-PEP plasmid is transferred into escherichia coli, MFH-DP-H6-E7-PEP fusion protein is obtained through prokaryotic expression, and formic acid hydrolysis, special protease hydrolysis and affinity chromatography are performed, so that GLP-1 polypeptide or the analogue thereof is obtained. According to the invention, the purposes of large-scale efficient expression of polypeptide, less steps of a peptide release process, mild condition and low production cost are achieved, and the GLP-1 polypeptide or the analogue thereof is suitable for industrial production.

The invention discloses an automobile door lock, wherein, a clipping board (1) is attached to the rib of a locking claw (2) through lock position steps, the lock position steps are multilevel steps distributed around a circle taking the rotation center of the clipping board (1) as the centre of a circle. Through adopting the technical proposal, the security of the automobile door lock is improved, when an automobile is in an accident, a lock body is impacted by great impact force, the automobile door lock can prevent the automobile door from opening, which significantly reduces danger that passengers are thrown out of a passenger compartment; the appearance of the lock body does not need to be changed, one or a plurality of lock positions are added based on the prior lock body, the functions of the invention can be realized through changing the parts in the lock body, which can not affect the lock body arrangement on the automobile door, assembly technology performance, and interchangeability and general performance.

The invention provides a method for preparing ferronickel byproduct active smelting electric furnace grain slag through red mud and nickel laterite ore. The method is characterized by comprising the following steps that 1, proportioning is carried out, specifically, raw materials include the red mud, the nickel laterite ore, coke powder and lime; and 2, reduction smelting of a smelting electric furnace is carried out, specifically, clusters formed through the raw materials prepared in the step 1 are conveyed into the smelting electric furnace for reduction smelting, slag and iron separation is completed through slag pre-making, melting and reduction, a furnace slag layer is formed, the furnace slag is discharged out of a slag opening regularly and subjected to water quenching or air-cooling pelletization, and the active smelting electric furnace grain slag is obtained. The smelting electric furnace grain slag prepared through the method can serve as a mixed material applied in the cement production process, the cement performance is improved, the variety and labels of cement products are adjusted, and the production cost is reduced; and meanwhile, the slag can be used for producing a concrete admixture independently or by being combined with other raw concrete admixture materials, and the resource utilization of the ferronickel byproduct active smelting electric furnace grain slag prepared through the red mud and the nickel laterite ore is effectively achieved.

The invention belongs to the technical field of corrosion protection for aluminum alloy. The invention relates to an aluminum alloy corrosion inhibitor for a neutral medium. The aluminum alloy corrosion inhibitor for the neutral medium is characterized in that: 1 g of the aluminum alloy corrosion inhibitor comprises 0.1-0.2 mg of zinc sulfate, 0.1-0.2 mg of sodium oleate, 0.1-0.2 mg of sodium orthophosphate and 0.1-0.2 mg of tallow amine. According to the present invention, the corrosion inhibition effect is provided for the aluminum alloy through the synergistic reaction of the zinc sulfate and the sodium oleate; the aluminum alloy corrosion inhibitor formed according to the ratio of the zinc sulfate to the sodium oleate is the aluminum alloy corrosion inhibitor for the neutral medium, wherein the aluminum alloy corrosion inhibitor for the neutral medium is low-toxic, high-efficient and economic, and does not affect the existing technological process.

The method is suitable for the technical field of instrument calibration. Instrument calibration method, Device and system, Terminal device and readable storage medium, The method comprises the stepsof obtaining serial number information of a target calibration instrument, acquiring an interface resource file and a calibration resource file corresponding to the serial number information from a cloud server according to the serial number information, and generating a calibration interface according to the interface resource file and the calibration resource file, obtaining a calibration instruction triggered based on the calibration interface, operating a corresponding calibration script according to the calibration instruction to control the calibration instrument to calibrate the targetcalibration instrument, generating calibration data, programming the calibration data in the target calibration instrument, and uploading the calibration data to the cloud server. According to the technical scheme, unified management is conducted based on the cloud server, the purpose that the same calibration software adapts to calibration of various instruments is achieved, the calibration process is controlled through the scripting language, the flexibility of calibration process control is improved, and the calibration process is not affected by communication with the cloud server.

The invention belongs to the technical field of hydroelectric power generating equipment of a fluid flow machine and mainly provides a bulb through-flow turbine. The bulb through-flow turbine comprises a shell, a bulb body, a runner and a spindle, wherein the bulb body, the runner and the spindle are arranged in the shell; one end of the spindle extends into the bulb body, and the other end of the spindle is located at the outer part of the bulb body and is connected with the runner; the spindle is provided with a first bevel gear; the first bevel gear is located in the bulb body. The bulb through-flow turbine is characterized by comprising a countershaft; the countershaft is provided with a second bevel gear; the first bevel gear and the second bevel gear are meshed to form a bevel gear pair; transmission is realized between the countershaft and the spindle through the bevel gear pair; the countershaft is provided with an electromagnetic power-off brake; the electromagnetic power-off brake is structurally and electrically connected with the bulb through-flow turbine.

The invention provides a method for selectively removing one valent anion impurities from sulfuric acid system electrolytes. The method is characterized in that the concentration of free H2SO4 in the electrolytes is adjusted, the electrolytes containing the free H2SO4 are led into a diffusion dialyzer waste acid chamber, water serves as receptor fluid to be led into a diffusion dialyzer recycling chamber in a reverse flow manner, the flow strength of the electrolytes in the diffusion dialyzing operation process is controlled, under drive of the concentration difference of partial free H2SO4 and the anion impurities in the electrolytes in a diffusion dialyzer, a transmission film is transmitted to the receptor fluid, and thin-H2SO4 purified electrolytes rich in anion impurities are formed. The new use manner of diffusion dialyzing is expanded, free acid recycling is changed into selective removing of the impurity ions, two existing problems of fluorine chlorine impurity removal and waste liquid disposal in the zinc electrolytes can be solved at the same time, and the new solution is provided for resource recycling of the wet metallurgy industry.

The invention discloses an array substrate and manufacturing method thereof, and a display panel. The manufacturing method of the array substrate comprises the steps of: forming a first active switchcontaining a crystalline oxide semiconductor at the display region of an array substrate, and forming a second active switch containing a polysilicon semiconductor at the non-display region of the array substrate, wherein the crystalline oxide semiconductor and the polysilicon semiconductor are formed on the same layer. The power consumption of the circuit in the display region is reduced while the narrow frame is achieved; and moreover, after the oxide conductor and an amorphous silicon semiconductor are prepared on the same layer and then are subjected to crystallization process at the sametime so that the manufacture procedure of converting the amorphous silicon to the polycrystalline silicon is not influenced and the stability of the array substrate is increased.

The invention relates to a preparation method of a metal-oxide-semiconductor field-effect transistor (MOSFET) with a silicon-on-nothing (SON) structure, which is characterized in that: a buffering layer is grown on a silicon underlay, then a gate-region photolithography mask is utilized to be photoetched through photosensitive resist with a polarity being opposite to that of photosensitive resist for gate-region photoetching technique, so a position for forming the gate region on an active area is exposed, then hydrogen ion and helium ion are injected, and a hollow layer is formed inside the active area below the position of the gate region through annealing after removing the photosensitive resist; and finally the buffering layer is removed, and the standard complementary metal-oxide semiconductor (CMOS) technique is carried out. Due to the adoption of the method, the MOSFET having the SON structure only with an MOS channel having a hollow layer is realized, and the process of the source-drain region is not influenced; and the gate-region photolithography mask of the standard CMOS technique is used for defining a hydrogen and helium injection window, so an additional photolithography mask is unnecessary to prepare, and the automatic aligning of the hollow layer and the gate-region position can be realized.

The invention relates to a security authentication method for a pushing service requester, which is used by a pushing service proxy gateway. The method comprises that: 1. the pushing service requester selects a HTTP head required by encryption and sets the cryptographic digest expression and the cryptographic algorithm, and informs the pushing service proxy gateway of the cryptographic digest expression and the cryptographic algorithm; 2. the pushing service requester builds the pushing service HTTP request comprising an authentication HTTP head and sends to the pushing service proxy gateway; 3. the pushing service proxy gateway analyzes the HTTP head of the pushing service HTTP request received, fills in the cryptographic digest expression and utilizes the cryptographic algorithm to obtain the digest result, the digest result is contrasted to the value of the authentication HTTP head, if the digest result is same with the value, the HTTP request of the pushing service is legal, otherwise, the HTTP request of the pushing service is illegal. The invention can effectively solve the rubbishy pushing service problem caused by the fake service provider.

The invention relates to an overburden separation bed grouting subsidence reducing process in coal mine strip mining. The process comprises the following steps of a, dividing coal mine strips; b, obtaining the separation distance and the number of coal pillars of each coal mine strip, and maintaining the positions of the coal pillars of each coal mine strip constancy so as to maintain the separation bed generating positions in the coal mine producing process constancy; c, detecting the positions of separation beds generated above the coal mine by the coal mine strip in the mining process to avoid the separation bed closing; d, drilling holes above the separation beds, and performing grouting operation until the separation beds are completely filled by grouting; e, continuously drilling holes until the holes are communicated with the separation beds of the next coal mine strip, and performing grouting operation on the ground toward the separation beds through the holes until the separation beds are completely filled by grouting; and f, repeating the step e until the production of the coal mine is completed. A strip mining method is combined with a separation bed grouting subsidence reducing technology is combined; the resource waste due to single strip mining can be reduced; the mining rate is improved; and meanwhile, the grouting subsidence reducing effect of the single overburden separation bed is improved.

The invention discloses a thermal treatment double-station uninterrupted unwinding device. The thermal treatment double-station uninterrupted unwinding device comprises a station bracket, coil bobbins and an unwound wire bracket, wherein two unwinding shafts are respectively horizontally arranged at the upper end of the station bracket. Steel wire heads and tails on the two coil bobbins are welded well by a welding machine. When the unwinding of the first reel of wires is about to end, an operator treads on a pedal type positioning pin, the coil bobbins horizontally rotate for 180 degrees, and conversion can be finished. Then, the welding work of the next reel is prepared. The whole process is more convenient and flexible, the continuous conduction of procedures is not affected, consumed labor is less, and the work efficiency is improved. Moreover, unwinding tension is constant, the tension of a tension band does not need to be frequently regulated, the wire breakage rate is reduced, and the stretching of steel wires in the hot galvanizing treatment process is reduced.

An anti-UV contact lens mainly consists of a main substrate and an anti-UV material. The main substrate is hydroxyethylmethacrylate (HEMA), the anti-UV material contains an UV blocker and a photo initiator, wherein, the photo initiator basically consists of 2,4,6-trimethylbenzoyldiphenylphosphine oxide and benzoylformate initiator. The anti-UV contact lens can increase productivity without changing the original process, accelerate curing time of the UV blocker, and reduce defective rate.

The invention discloses an IPv4 and IPv6 dual stack flow unified bandwidth control system based on SNMP. The IPv4 and IPv6 dual stack flow unified bandwidth control system based on SNMP comprises the following steps: the system obtains the terminal device speed limiting strategy in the AAA system; the terminal device sends a network request: the terminal device sends a network request to an access gateway device by means of the single stack or dual stack mode; the IPv6 and IPv4 flow of the access layer terminal device is guided into the system; the IPv6+MAC and IPv4+MAC information is obtained; the speed limiting strategy is requested to return: the downlink speed limiting strategy is carried out by the system device, and transmitted to the access gateway device through the tunnel encapsulation, and then returned to the terminal. The IPv4 and IPv6 dual stack flow unified bandwidth control system based on SNMP uses the tunnel technology based on IPv6 to solve the upper link of access layer without the need of occupying additional IPv4, and the full link is security encrypted; the speed limit function realizes the joint speed limit of dual stack links, and interacts with the AAA system to carry out the speed limit strategy without the influence of the original AAA system flow; the implementation supporting the distributed deployment can realize system load balancing, disaster tolerance and steady expansion, and the basic conditions of the implementation are perfect.

The invention relates to a construction method of tower transmission iron tower foundation large-diameter underwater cast-in-place piles. The method comprises, during mud retaining wall drilling and pile casting, constructing a mud retaining wall, wherein the inside of mud retaining wall forms a pile hole, and coaxially mounting a shaft casing on the ground at the top end of the pile hole. The method comprises the steps of (1) exploring the position of a drift sand layer; (2) mounting the spliced type casing on a steel reinforcement cage of the position where the drift sand layer is formed; (3) mounting steel reinforcement cages; (4) isolating the drift sand layer; (5) performing construction of concrete cast-in-place piles. The construction method of the tower transmission iron tower foundation large-diameter underwater cast-in-place piles is applicable to field processing, economical and practical, guarantees the effect of no influence of the drift sand layer on any process as well as the construction progress. The construction method of the tower transmission iron tower foundation large-diameter underwater cast-in-place piles has the advantage of obviously enhancing construction rapidity, practicality, sociality and economical efficiency.

The invention relates to a terminal structure of a super-junction MOS and a manufacturing method thereof. The terminal structure of the super-junction MOS comprises P-type columns and N-type columns; as a polycrystalline field plate is adopted by a transition region from an active region to a terminal region, electric field distribution is transited smoothly and steadily from the active region to the terminal region, and then electric field charges are balanced by utilizing a P-type column and N-type column alternating structure of the terminal region; an N-type epitaxial layer is grown on a heavily doped N+ substrate, an oxide layer is grown on the surface of the epitaxial layer, grooves of the active region and groove rings of the terminal region are etched through a photo-mask by utilizing trench etching; and if the width of the groove is a, the interval of the grooves of the active region is b and the interval of the grooves of the terminal region is c, c is greater than a but less than or equal to b. By simplifying the structure of the terminal region, the disadvantage of impurity introduction when other structures such as the polycrystalline field plate are introduced at a device terminal can be prevented. Meanwhile, damage to the device per se is reduced, and the stability of device performance is improved under the condition of not affecting the technology.

Provided is a motor train unit outer door switch state stability testing method, belonging to the technical field of high-speed motor train unit electrical debugging. The method has hand-operated and automatic modes, the automatic mode is that after the door opening and closing frequency is set, a PLC controls a stepping motor to press a switch door and a door allowance button via a push rod and controls the opening and closing of the outer door according to the outer door opening and closing state fed back by an infrared sensor, and after the opening and closing frequency reaches the set value, and the operation stops automatically and the ending time and execution frequency of the experiment is stored. According to the method, the manual operation of opening and closing doors for 200 times in the prior art is replaced by automatic devices, so that the labor intensity of operators is greatly reduced; and moreover, the operators don't occupy the driver's cab for a long time, and the progress of other debugging processes in the driver's cab is not influenced. Meanwhile, the door opening and closing operation frequency is recorded by means of a program, record errors can be prevented, the final door opening and closing frequency can be correctly counted, and the testing quality can be guaranteed.

The invention relates to the field of the spinning technology and provides a novel high-count pure cotton hard twisted yarn setting technology. The technology includes the following steps that high-count pure cotton hard twisted yarn is subjected to liquid ammonia treatment, and the yarn is fed in an intermittent or continuous mode; according to the processing process, the temperature of liquid ammonia is -31.8 DEG C, dipping lasts for 8-9 s, the drying temperature is increased from 50 DEG C to 120 DEG C and is kept for 20-30 min after being gradually increased to 120 DEG C, the ultra-high twist of the yarn is stabilized after washing, drying and roasting, under the constant-temperature constant-humidity environment with the temperature being 20+ / -2 DEG C and the relative humidity being 65+ / -2%, after pre-equilibration treatment is carried out for 24 h, a yarn twist set-twist efficiency test is carried out, and the average set-twist efficiency is 50-55%. The technology has the advantages that by means of a physical processing method, the ultra-high twist of the high-count pure cotton hard twisted yarn is set, the weaving ability of the yarn on a machine is obviously improved, and productivity and product quality are greatly improved.

The invention discloses a novel cloth rolling device for fast winding of textile cloth, which comprises a machine base and guide rollers arranged on the top of the machine base and opposite to each other on the left and right. Sliding in the chute is connected with the sliding bottom bracket. The middle position of the inner bottom wall of the first guide chute is provided with a lift chute. The inner walls of the front and rear sides of the lift chute are symmetrically provided with a second guide chute. block; the invention has a simple structure, can realize automatic control of the left and right movement of the sliding bottom bracket, realize switching of the left and right side bracket components for rewinding cloth and disassembly and replacement of the roll cloth drum, improve the convenience of installation and disassembly without affecting the rewinding cloth process.

The invention discloses a light-emitting diode with a light filtering film. A gallium-nitride-based light-emitting diode is used for processing P and N electrodes in a normal process, an electron beam evaporation or ion beam sputtering coating system is used for growing a wavelength pass filtering film layer outside P and N electrode areas of the light-emitting diode, and the wavelength pass filtering film layer has a stopping function for short-wavelength light, such as ultraviolet light, and the like and high transmissivity for long-wavelength light. Because short-wavelength light can accelerate the ageing of an LED (Light-Emitting Diode) packaging material, when being packaged, an LED chip with a long wavelength pass filtering film layer structure effectively reduces light decay of the LED, ensures reliability, consistency and service life of the LED, simplifies extended structure design and shortens extended research and development time at the same time.

The invention discloses a miniature sample gas automatic sample injection system for gas chromatography. The system comprises a filter, a micro-metering valve which is connected with the filter through a pipe, a first electromagnetic valve which is connected with the fine adjustment valve through a pipe, a valve opening mechanism which is connected with the first electromagnetic valve through a pipe and is connected with an external detection mechanism, a pressure sensor which is connected with the through valve mechanism through a pipe, a first flow path and a second flow path which are connected with the pressure sensor; a second solenoid valve connected to the first flow path, a gas outlet pipe which is connected with the second electromagnetic valve through a pipe, a temperature sensorwhich is connected between the through valve mechanism and the pressure sensor, and an automatic controller which is electrically connected with the micro-metering valve , the first electromagnetic valve, the through valve mechanism, the pressure sensor, the second flow path, the first flow path, the second electromagnetic valve and the temperature sensor. According to the invention, through positive pressure, negative pressure and normal pressure sample injection, the tested gas entering the quantitative loop of the gas chromatograph meets the analysis requirements of different sample quantities in different working conditions, and the test result is accurate and reliable.