42results about How to "Guaranteed original condition" patented technology

The invention discloses a hierarchical collection device of suspended matters of a natural water body, and a collection method of the hierarchical collection device. The collection device comprises a filtering combination suite, a control box, a submersible pump and a water pipe, wherein the filtering combination suite further comprises a water inlet element, filtering elements and a water outlet element, and a plurality of filtering elements are overlapped together and are arranged between the water inlet element and the water outlet element. According to the hierarchical collection device, the plurality of filtering elements are overlapped together, the apertures of the filtering elements are gradually reduced from top to bottom, the suspended matters in different particle sizes are separated in a layer-by-layer manner, and the suspended matters in different particle sizes can be separated at one time, so that the operation is simple and quick, and precision is improved. The collection device is easy to use during field sampling, depth and flow instruments can be used for quantitative sampling of the natural water bodies in different depths, the suspended matters are separated in place, and the original state of the suspended matters is ensured; and the difficulty in separation of bio-particles in a sedimentation method is overcome; and the collection device has the advantages of large flux, time saving and very low cost.

The invention discloses an automatic sampler of undisturbed sediment deposits, and relates to the environment analysis technology. The automatic sampler comprises a power supply part, a cylinder body part, a sampling head, and a seal part. After the automatic sampler enters sediment deposits, a pressure switch is closed by the extrusion between the power supply housing and the sampling cylinder fixed part, and a deceleration motor is started to drive the sampling cylinder and a stainless steel knife edge to rotate and sampling; when the distance between the power supply housing and an annular gravity hammer reaches the detection range of a proximity switch sensor, the sampling is stopped; during the lifting process of the sampler, a rubber diaphragm seals the lower part of the sampling cylinder. The automatic sampler of undisturbed sediment deposits of the invention is specially applicable to undisturbed sampling devices for sediment deposits of rivers, lakes, and neritic regions, and has an obvious advantage for environment with a relatively hard deposition layer; and the invention allows a quick and effective sampling to deposits, and realizes an effective analysis to deposit samples.

The invention discloses a compact type built-in high-pressure sampling ball valve which is characterized in that a valve body is arranged, a valve seat and a steel ball are arranged in the valve body, and a through hole is formed in the steel ball; a gear shaft is fixedly connected to two ends of the steel ball; and gears on the gear shaft are meshed with racks. The invention has the benefits that the compact type built-in high-pressure ball valve with a special hard sealing structure is designed, so as to guarantee sea bottom in-situ airtight sample core sampling equipment at a depth of 3000 meters under seawater to have an excellent sealing property, sealed operations can be performed during taking samples, non-pollution and leakage-free collection to in-situ airtight sample cores is achieved, and that samples taken from the bottom of the sea keep initial states and information required by a laboratory test is ensured. Therefore, real and satisfying testing results are obtained.

The invention relates to a device and a method for extracting undisturbed soil. The device comprises a main body cylinder, an opening and locking switch and a cylindrical hoisting ring, wherein the main body cylinder consists of two semi-cylindrical surfaces which can be opened and closed by taking a bus as a shaft; the opening and locking switch is arranged at the opening and closing position; and the external surface of the main body cylinder is provided with the cylindrical hoisting ring. The method comprises the following steps of: determining the area of a cylindrical soil sample, and digging at the periphery and on the lower side of the collected soil sample to reach an upper layer sampling depth; switching on the opening and locking switch on the main body cylinder, sleeving the two semi-cylindrical surfaces outside the soil sample, and closing and locking the two semi-cylindrical surfaces; separating the cylindrical soil sample from soil at the bottom of the cylindrical soil sample at the bottom of the main body cylinder; hoisting the main body cylinder carrying the cylindrical soil sample by a certain height, inserting, hoisting a base plate, putting on a transportation tool, and transporting to a specified place. The device has a simple and practical structure and is more suitable for filling the soil sample; and by the method, the original state of the soil sample can be better ensured, the soil sample is convenient to collect, and the safety factor is high.

The invention discloses a water body bottom mud sampler. A sealing head is arranged at the upper end of a sampler bracket; a sampling pipe which is placed vertically is arranged at the lower end of the sealing head; a one-way valve is arranged at the upper end of the sealing head; the one-way valve is communicated with the sampling pipe; a control switch is arranged at the position, corresponding to the lower part of the sampling pipe, of the sample bracket; the control switch is provided with a bottom plug; an elastic rope bracket is arranged on the sampler bracket which is above the control switch; the elastic rope bracket extends downwards to the lower end of the sampling pipe; positioning holes which are located at the two sides of the sampling pipe are formed in the terminal end of the elastic rope bracket, respectively; elastic ropes which are located at the two sides of the sampling pipe are arranged on the elastic rope bracket respectively; the other end of each elastic rope penetrates the corresponding positioning hole to be fixed on the bottom plug; the lower end of the sampler bracket projects out from the terminal end of the sampling pipe for a section of distance. According to the water body bottom mud sampler, mud column in the sampling pipe is protected against falling, the sampling pipe is guaranteed to be above the water level, and the mud column still can persist in the sampling pipe completely at the presence of pressure unbalance.

The invention discloses an automatic sampling device for seabed sediments comprising an outer cylinder, a sampling inner cylinder, a stepping driving mechanism and a guide assembly; the stepping driving mechanism is installed on an upper installation plate at the upper end of the outer cylinder, the output end of the stepping driving mechanism is connected with the top of the sampling inner cylinder, the lower end of a guide shaft in the guide assembly is connected with a guide connecting plate at the top of the sampling inner cylinder, the lower end surface of the outer cylinder is further provided with a sliding sample-holding base plate capable of horizontally moving, the sliding sample-holding base plate is connected with a sample-holding driving mechanism, the sample-holding driving mechanism comprises an installation disc, a rack, a driving gear and a driving motor, the driving motor is fixed on the installation disc through an installation bracket, the driving gear is arranged at the output shaft end of the driving motor and is meshed with the rack arranged on the sliding sample-holding base plate, the top surface of the sliding sample-holding base plate is in sliding contact with the lower end surface of the sampling inner cylinder, the bottom surface of the sliding sample-holding base plate is in sliding contact with the upper surface of the installation disc, and theinstallation disc is fixed on the lower end surface of the outer cylinder through a connecting column.

The invention discloses a vertical freezing and sampling device and an application method thereof. The sampling device comprises a workboat, an automatic control platform, a lifting system, a liquid-state CO2 supply device, a sampler and an adjusting bracket arranged on the sampler, wherein the automatic control platform, the lifting system and the liquid-state CO2 supply device are sequentially fixed on the workboat, the lifting system is connected with the sampler by virtue of a cable, and the adjusting bracket is arranged at the lower part of the sampler. A hollow copper pipe probe in the sampler is connected with the liquid-state CO2 supply device by virtue of a liquid-state CO2 input pipeline. An automatic level adjusting system in the automatic control platform controls the adjustingbracket, so that the copper pipe probe is vertically inserted into a deposited layer to be frozen and obtain a sample. Compared with the prior art, the vertical freezing and sampling device disclosedby the invention can be used for in situ sampling of deposits in a deep water and shallow water areas, and the copper pipe probe in the sampler is vertically inserted into the deposits, so that sampling success rate under deep water and relatively high flow rate conditions is guaranteed.

The present invention relates to a bag holding material evidences or material samples and a production method. The present invention aims at resolving the prior art problem that the original state of material evidences is influenced to open the bag mouth and tear the protective membrane of a double-face adhesive tape by hands with troublesome operation and no proper production method is available to provide better congener bags. The key points of the technic proposal is that: the bag is characterized in that the bag body is made of plastic foil with sealing sides; the back side of the sealing line of one bag body side is provided with an easy-tearing line used for tearing the bag mouth; the back side surface of the easy-tearing line is provided with a reinforcing applying band which is provided with a metal line used for shaping assisting the bag mouth; and two pairs or more overhang hand holding parts are arranged on the reinforcing applying band. The production method is characterized in that: two layers of folding plastic foils are used; every side is sealed; the easy-tearing line is stamped; two segments of reinforcing applying bands are cut; a pair of overhang hand holding parts are joggled before cutting; the metal line is cut and the center of reinforcing applying band is put in; the reinforcing applying band is affixed; and after affixing another pair of overhang hand holding parts are formed beyond the two side parts of the bag body.

The invention belongs to a method for analyzing the ionic valence state of a melt, and in particular relates to a method for determining the valence state of a transition metal in slag by using a high-temperature mass spectrum method. By the method, an intrinsic standoff ratio of substances of the same element in a gas phase can be obtained through Knudsen-high-temperature-mass-spectrum test and is compared with corresponding partial pressure of a reference substance, so that a valence state proportional relation of transition metal elements in a condensed phase can be obtained. By the method, the possibility that the transition metal is oxidized when slag samples are melted by a wet chemical method is reduced, and the original state of the sample can be kept; furthermore, the volatilization experiment is easier than an X-ray nearly angle refraction absorption spectrum method; and moreover, the method is high in transportability and has a good application prospect.

The invention discloses a smart PAM dosing device. The device comprises a stirring barrel, a vacuum main machine and an automatic feeding machine, the center of the top of the stirring barrel is provided with a deceleration motor, the lower end of the deceleration motor is connected to a mixer blade inside the stirring barrel, the automatic feeding machine is arranged at the top of the stirring barrel, the automatic feeding machine is respectively connected to the vacuum main machine and a material cabin through a gas suction hose and a material suction hose, the automatic feeding machine is orderly provided with a feeding inlet, the material storage cabin and a feeding inlet from top to bottom, a vacuum controller is arranged between the feeding inlet and the material storage cabin, a frequency conversion speed regulating feeding valve is arranged between the material storage cabin and the feeding inlet, the bottom of the feeding inlet is communicated with the top of the stirring barrel, a feed diluting device is arranged at the top of the stirring barrel, the feed diluting device is connected to the automatic feeding machine, a water inlet pipe is arranged in one side of the feeddiluting device and the stirring barrel is connected to a PAM dosing screw pump through a discharge pipe.

The invention discloses a biological sample storage device. Non-contact sample storage is adopted, and a sample is free of pollution and a container is repeatedly used. The device comprises a closed container and an ultrasonic suspension device. The closed container has the vacuum keeping capacity, and an openable door device with the sealing capacity is used for containing and taking out the sample. The door device or other positions of a tank are provided with one or more valves used for emptying internal gas and injecting inert gas into the interior under special purposes. According to thebiological sample storage device, ultrasonic suspension sample storage is achieved in the closed container, the beneficial effects that the sample is not polluted and is easy to take out, and the sample can be reused without treatment or through simple treatment are achieved, the sample storage effect is improved, the burden of medical waste on the environment is reduced, and cost can be effectively controlled under the situation of repeated usage.

The invention discloses a sampling device for getting undisturbed cohesive soil in an exploratory well exploratory trench. The sampling device comprises a counterforce frame with four support feet anda sample preparation pipe; an ground anchor is arranged on the counterforce frame with the four support feet; a ball screw nut is arranged on the top of the counterforce frame with the four support feet; a ball screw is arranged in the ball screw nut; a handle is arranged at one end of the ball screw, while the other end of the ball screw is connected with an outer pipe connector; an outer pipe soil peeler is arranged on the sample preparation pipe in a sleeving manner; one end of the outer pipe soil peeler is in threaded connection with the outer pipe connector; a thrust bearing slot is formed in one end, corresponding to the outer pipe soil peeler, of the outer pipe connector; a thrust bearing shaft is arranged in the thrust bearing slot; an inner pipe connector is connected with one end of the sample preparation pipe; a conical roller bearing slot is formed in the outer pipe soil peeler; a conical roller bearing is arranged in the conical roller bearing slot; one end of the inner pipe connector passes through the conical roller bearing and is in threaded connection with a slotted lock nut. The invention provides the sampling device for getting the undisturbed cohesive soil in the exploratory well exploratory trench, which is convenient to sample.

The invention provides a nano-particle size concentration detection system. The system comprises a sample collecting and cleaning system, a detection chip and a laser, wherein the sample collecting and cleaning system is connected with the detection chip to control the flow of a sample and a cleaning solution in the detection chip. The detection system disclosed by the invention can derive the particle size and concentration of the nanoparticles by observing the motion trail and number of the nanoparticles in a solution state, so the nanoparticles can be ensured to be in an original state, and the result is accurate and reliable. The system can be used as a module to be combined with a nano-particle synthesis system, so man-made interference caused by separated experiments is reduced. The system disclosed by the invention is simple and convenient to operate and has the characteristic of high throughput.

The invention relates to an improved siphon circulation hydroelectric generation device which is composed of a water storage tank, a siphon pipe, a buffering water tank and an electric generator. The water storage tank is arranged above the buffering water tank, the siphon pipe is a slant pipe connected between the water storage tank and the buffering water tank, the low end of the siphon pipe is provided with a siphon pipe bottom valve, the bottom of the water storage tank is provided with a water inlet pipe connected with the electric generator, a blowoff valve is arranged at the top of the water storage tank, a water feeding pipe is connected between the water storage tank and the buffering water tank, the low end of the water feeding pipe is provided with a pump and a gate valve, the water passing cross sectional area of the siphon pipe is larger than or equal to the water passing cross sectional area of the water inlet pipe, and the blowoff valve is an automatic stopping valve in water level signal linkage with the water storage tank. When water is fed into the water storage tank, the blowoff valve is opened, air in the water storage tank is discharged, and the blowoff valve is automatically closed when the water storage tank is filled with the water and the water is overflowed. According to the improved siphon circulation hydroelectric generation device, the surging hidden dangers of the negative pressure in the electric generation process are eliminated, the amount of the water coming in and going out of the water storage tank is basically balanced, generation of the in-tank vacuum negative pressure is avoided, gentle releasing of water energy in the water storage tank is guaranteed, the electric generation quality is improved, the potential safety hazard that the water storage tank is cracked is eliminated, and the personal and property safety is guaranteed.

The invention discloses a method of removing pulse interface in a liquid chromatography curve. The method comprises the steps of collecting test data and creating a liquid chromatography curve, and performing segmentation test on the liquid chromatography curve; calculating a mean and a variance of the liquid chromatography curve in a tested segment, and determining a median point and a value corresponding to the median point on the liquid chromatography curve; determining whether the median point is a pulse interference point, and acquiring a pulse interference point; and performing spline interpolation for three times and replacing the pulse interference point through a fit method, and acquiring a liquid chromatography curve with pulse interference removed. Pulse interference is removedbefore an autopeak of the liquid chromatography curve is identified, so that the pulse interference in the liquid chromatography curve is removed, and after filtration, data is guaranteed to maintainan initial state; and the pulse interference is better removed, and post-peak is identified more accurately.

The invention discloses a platinum single-crystal surface cleaning and enhanced Raman signal acquisition method, and relates to Raman scattering spectrums. The method comprises the following steps: synthesizing Au nanoparticles; by taking the Au nanoparticles as a core, wrapping the core with SiO2 as a shell layer, so as to obtain shell-partitioned nanoparticles; assembling the shell-partitioned nanoparticles on the surface of single crystal; removing impurities on the surfaces of the single crystal and the nanoparticles by using an electrochemical hydrogen evolution method; and by using a Raman spectrometer, acquiring a Raman spectrum of a species on the surface of the single crystal, thereby completing platinum single-crystal surface cleaning and enhanced Raman signal acquisition. The method has the advantages of simple and easy operation, high repeatability, excellent effect and the like.

The present invention discloses a recording and sound processing method. The method comprises the following steps: a, sound signals are distributed to each transmission channel through a distributor after the sound signals are processed by a transducer; b, sound signals of each transmission channel are subjected to amplification processing with different grades, and the control conversion is performed through a controller; c, signals are converted and then the signals of each sound signal source are displayed through a position display module; d, each sound signal is processed through a sound processing module after the display is completed; and c, processed signals are detected through a detector. The recording and sound processing method is able to perform acquisition process of sound signals so as to ensure the sound primary state, greatly reduce the sound distortion rate and realize large-dynamic and high-fidelity transmission sound.

The invention belongs to the field of a direct shear test and a direct shear rheological test of a complete rock block with a cylindrical core or a rock block with a structural surface under a complex occurrence condition of simulating deep ground engineering, and particularly relates to a direct shear rheological testing machine for a cylindrical surface of the cylindrical core in a deep ground environment. The machine structurally comprises a shearing pressure head and a horizontal driving mechanism, wherein the shearing pressure head is provided with a base, a sample clamping seat and an angle adjusting screw rod. According to the cylindrical core cylindrical surface direct shear rheological testing machine in the deep ground environment, a shear test can be directly carried out on the cylindrical complete rock block and the cylindrical rock block containing a structural surface, and the problem that the shear test cannot be effectively carried out due to restrictions of the size, the character and the like is solved.