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30results about How to "Reduce the chance of precipitation" patented technology
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Vanadium ion redox flow battery electrolyte, preparation method thereof and battery thereof
ActiveCN101635363ASimple production processReduce lossesRegenerative fuel cellsFuel cell detailsManufacturing technologyVanadyl sulfate
The invention provides vanadium ion redox flow battery electrolyte, comprising vandic salt, sulphuric acid, additive, deionized water and metal salt can be dissolved in a sulphuric acid system. The electrolyte can greatly improve the cathode system evolution overpotential of the vanadium battery and anode system evolution overpotential, greatly reduce the ratio of gas evolution in the electrolyte caused by various polarizations in the process of operating the vanadium battery, and improve the stability of the electrolyte in the process of charge and discharge. The invention further provides a preparation method of the vanadium ion redox flow battery electrolyte, which eliminates a step of electrolyzing the obtained vanadyl sulfate solution to obtain 50% of trivalent vanadium and 50% of tetravalent vanadium, greatly simplifies the manufacture technology of the vanadium electrolyte which can be directly used for charging and discharging, reduces the lose of the vanadium in the process of preparation, and reduces the preparation cost of the electrolyte.
Owner:BYD CO LTD
Tube orifice diameter variable spliced sampling instrument
The invention relates to a tube orifice diameter variable spliced sampling instrument which structurally comprises a steady flow buffer tube for receiving a pumped polluted water sample and performing steady flow conveying on the polluted water sample, a pump tube connection mechanism connected with a polluted water sample output pump tube, a diversion pressure regulating valve for regulating water flow pressure of the polluted water sample, a pressure gauge for detecting the water flow pressure, a sampling hose leading the polluted water sample under a laminar condition out of the steady flow buffer tube via a streamline water outlet for water sampling, and a concentric flow regulator for regulating a flow rate of the collected water sample. The instrument changes the composition, the structure and the operating principle of the original organic polluted water sampling device, has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Nozzle variable diameter plug-in sampler
InactiveCN103743596BNo pollutionAvoid man-made pollutionWithdrawing sample devicesWater flowEngineering
The invention relates to a tube orifice diameter variable spliced sampling instrument which structurally comprises a steady flow buffer tube for receiving a pumped polluted water sample and performing steady flow conveying on the polluted water sample, a pump tube connection mechanism connected with a polluted water sample output pump tube, a diversion pressure regulating valve for regulating water flow pressure of the polluted water sample, a pressure gauge for detecting the water flow pressure, a sampling hose leading the polluted water sample under a laminar condition out of the steady flow buffer tube via a streamline water outlet for water sampling, and a concentric flow regulator for regulating a flow rate of the collected water sample. The instrument changes the composition, the structure and the operating principle of the original organic polluted water sampling device, has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Concentric flow regulator
InactiveCN103759969AIncrease fidelityEasy to operateWithdrawing sample devicesEngineeringWater sample
The invention relates to a concentric flow regulator which adopts the following structure that an axial core hole for allowing a sampling hose to be inserted and a transverse rope through hole communicated with the core hole are formed in the rod body of a holding rod; a rotating shaft rope tightener for winding a fastening rope is arranged on the holding rod and in a position at the outer end opening of the rope through hole; after the fastening rope drawn from the rotating shaft rope tightener passes through the rope through hole in the holding rod and enters the core hole, the end part of the fastening rope is fixed on the holding rod; the fastening rope surrounds the inserted sampling hose by a circle in the core hole of the holding rod. The concentric flow regulator achieves ring-type binding regulation of the fastening rope on the sampling hose, achieves the purpose of concentric flow regulation and enables the flow line beam of water passing through the sampling hose to be cylindrical always so as to reduce probability of separating out volatile and semi-volatile substances in a polluted water sample and improve the fidelity of the sample.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Water sample collection system and method for sampling water from artesian well
ActiveCN105203354AUniform compression deformationQuick installationWithdrawing sample devicesCollection systemDynamic balance
The invention relates to a water sample collection system and method for sampling water from an artesian well. The water sample collection system is characterized in that a well mouth connected sampling device is arranged at the well mouth of the artesian well, the output port of the well mouth connected sampling device is connected with the input port of a self-priming pump through a flexible pipe, the output port of the self-priming pump is connected with a T-joint through a pipeline, an upper port of the T-joint is connected with the input port of a quality stabilizer through a pipeline, the bypass port of the T-joint is connected with a flow splitting control valve, and the output port in the upper end of the quality stabilizer is connected with a split-type combined sampling bottle through a pipeline. The water sample collection system and method for sampling water from the artesian well can realize the quick installation and positioning of artesian well pipes and improve the fastness and convenience of sampling operation; since the water sample and environment-sensitive substances contained in the water sample pass the water sample collection system in a relatively dynamic balance state, the disturbance is small, the precipitated volatile substances are fewer and the fidelity of the sample is improved.
Owner:BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
Negative pressure sampler for collecting water sample containing organic pollutants
InactiveCN103743598AImprove fidelityAvoid man-made pollutionWithdrawing sample devicesEngineeringSample collection
The invention relates to a negative pressure sampler for collecting a water sample containing organic pollutants. The negative pressure sampler comprises a flow stabilizing buffer tube, a pump tube connection mechanism, a flow dividing and pressure regulating valve, an arc-shaped sampling core pipe, a quality stabilizer, a flow regulator, a sampling hose and the like. The negative pressure sampler provided by the invention has the advantages of light weight, convenience in carrying and mounting, simple operation and use safety. Particularly, the collected water sample has a slow change in flow direction and a stable flow line due to the use of the quality stabilizer, thereby obviating generation of air holes, realizing good redissolution effect, improving fidelity of the collected sample, lowering the sample collection cost, ensuring the safety of personnel and equipment and improving the universality of the sampler.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Tube orifice diameter variable spliced sampling instrument
The invention relates to a tube orifice diameter variable spliced sampling instrument which structurally comprises a steady flow buffer tube for receiving a pumped polluted water sample and performing steady flow conveying on the polluted water sample, a pump tube connection mechanism connected with a polluted water sample output pump tube, a diversion pressure regulating valve for regulating water flow pressure of the polluted water sample, a pressure gauge for detecting the water flow pressure, a sampling hose leading the polluted water sample under a laminar condition out of the steady flow buffer tube via a streamline water outlet for water sampling, and a concentric flow regulator for regulating a flow rate of the collected water sample. The instrument changes the composition, the structure and the operating principle of the original organic polluted water sampling device, has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Tube orifice diameter variable spliced sampling instrument
InactiveCN103743597AImprove fidelityAvoid man-made pollutionWithdrawing sample devicesEngineeringStreamflow
The invention relates to a tube orifice diameter variable spliced sampling instrument which structurally comprises a steady flow buffer tube for receiving a pumped polluted water sample and performing steady flow conveying on the polluted water sample, a pump tube connection mechanism connected with a polluted water sample output pump tube, a diversion pressure regulating valve for regulating water flow pressure of the polluted water sample, a pressure gauge for detecting the water flow pressure, a sampling hose leading the polluted water sample under a laminar condition out of the steady flow buffer tube via a streamline water outlet for water sampling, and a concentric flow regulator for regulating a flow rate of the collected water sample. The instrument changes the composition, the structure and the operating principle of the original organic polluted water sampling device, has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Preparation method of ingot furnace and silicon ingot
ActiveCN104451874AReduce thicknessIncrease cooling areaPolycrystalline material growthSingle crystal growth detailsThermal insulationIngot
The invention provides a preparation method of an ingot furnace and a silicon ingot. The ingot furnace comprises a thermal insulation cage, a plurality of louvers and baffle plates, wherein a window is formed in the bottom of the thermal insulation cage; the plurality of louvers are arranged below the window; holes which run through the louvers along the direction vertical to the thicknesses of the louvers are formed in the louvers; and the baffle plates are arranged in the thermal insulation cage and are arranged at the bottoms of two side walls of the thermal insulation cage. The heat radiating area of the louvers is increased when the louvers of the ingot furnace are opened, so that the heat radiating rate of the louvers is also increased and the crystal growth drive force at the late growth stage of the silicon ingot is improved. When the ingot furnace adopts a seed crystal process, the heat radiating rate of the bottom of the ingot furnace at a melting stage is increased, and the temperature of the bottom of the ingot furnace is lowered, so that the seed crystal is easy to reserve, and therefore, the quality of the prepared silicon ingot is improved. Meanwhile, the crystal growth drive force at the late growth stage of the silicon ingot is improved, so that the crystal growth rate at the late crystal growth stage is increased, the liquidity of silicon liquid is increased, further fractional condensation of impurities is reinforced, and the outturn percentage is further increased.
Owner:YINGLI GRP +2
Pipe orifice variable plug-in type sampling instrument
InactiveCN103759975AImprove fidelityNo pollutionWithdrawing sample devicesWater flowEnvironmental engineering
The invention relates to a pipe orifice variable plug-in type sampling instrument which structurally comprises a steady flow buffer pipe used for receiving a pumped polluted water sample and steadily conveying the polluted water sample, a pump pipe connecting mechanism connected with a polluted water sample output pump pipe, a flow dividing pressure regulating valve used for regulating the pressure of the water flow of the polluted water sample, a pressure gauge for detecting the pressure of the water flow, a sampling hose used for leading out the laminar-condition polluted water sample from the steady flow buffer pipe through a streamline water outlet and collecting the water sample, and a concentric type flow regulator used for regulating the flow of the collected water sample. The sampling instrument provided by the invention changes the composition, the structure and the working principle of an original organic matter polluted water sample collecting device, and has the characteristics of small size, light weight, wide application range, convenience for carrying and installing, simplicity in operation, safe use, avoidance of polluting the sample in the collecting process, etc., so that the fidelity of the collected sample is increased, the sample collecting cost is lowered, the safety of staffs and equipment is guaranteed, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Pipe orifice variable plug-in type sampling instrument
InactiveCN103759974AImprove fidelityNo pollutionWithdrawing sample devicesWater flowEnvironmental engineering
The invention relates to a pipe orifice variable plug-in type sampling instrument which structurally comprises a steady flow buffer pipe used for receiving a pumped polluted water sample and steadily conveying the polluted water sample, a pump pipe connecting mechanism connected with a polluted water sample output pump pipe, a flow dividing pressure regulating valve used for regulating the pressure of the water flow of the polluted water sample, a pressure gauge for detecting the pressure of the water flow, a sampling hose used for leading out the laminar-condition polluted water sample from the steady flow buffer pipe through a streamline water outlet and further collecting the water sample, and a concentric type flow regulator used for regulating the flow of the collected water sample. The sampling instrument provided by the invention changes the composition, the structure and the working principle of an original organic matter polluted water sample collecting device, and has the characteristics of small size, light weight, wide application range, convenience for carrying and installing, simplicity in operation, safe use, avoidance of polluting the sample in the collecting process, etc., so that the fidelity of the collected sample is increased, the sample collecting cost is lowered, the safety of staffs and equipment is guaranteed, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Nozzle variable diameter plug-in sampler
InactiveCN103759976BNo pollutionAvoid man-made pollutionWithdrawing sample devicesWater flowEngineering
The invention relates to a pipe orifice variable plug-in type sampling instrument which structurally comprises a steady flow buffer pipe used for receiving a pumped polluted water sample and steadily conveying the polluted water sample, a pump pipe connecting mechanism connected with a polluted water sample output pump pipe, a flow dividing pressure regulating valve used for regulating the pressure of the water flow of the polluted water sample, a pressure gauge for detecting the pressure of the water flow, a sampling hose used for leading out the laminar-condition polluted water sample from the steady flow buffer pipe through a streamline water outlet and collecting the water sample, and a concentric type flow regulator used for regulating the flow of the collected water sample. The sampling instrument has the characteristics of small size, light weight, wide application range, convenience for carrying and installing, simplicity in operation, safe use, avoidance of polluting the sample in the collecting process, etc., so that the fidelity of the collected sample is increased, the sample collecting cost is lowered, the safety of staffs and equipment is guaranteed, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Organic pollution water sample pump nozzle sampler
InactiveCN103759972BNo pollutionAvoid man-made pollutionWithdrawing sample devicesWater flowEngineering
The invention relates to an organic pollution water sample sampler at a pump tube opening, which structurally comprises a flow stabilizing buffer tube for taking a pumped polluted water sample and conveying the polluted water sample in a stable flow manner, a pump tube connecting mechanism connected with a polluted water sample output pump tube, a split pressure adjusting valve for adjusting the pressure of flow of the polluted water sample, a pressure gauge for detecting the pressure of the flow, a sampling hose for guiding the polluted water sample in the laminar condition from the flow stabilizing buffer tube through a streamline water outlet to collect the water sample, and a concentric type flow regulator for regulating the flow of the collected water sample. The sampler has the characteristics of small size, light weight, wide application range, convenience for carrying, convenience for mounting operation, simplicity in operation, safety in use, capability of preventing the sample from being contaminated in the collection process, and the like, the fidelity of the collected sample is improved, the collection cost of the sample is lowered, people and equipment security is ensured, and the universality of the sample is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Concentric Flow Regulator
The invention relates to a concentric type flow regulator. The concentric type flow regulator is characterized in that an axial core hole and a transverse rope through hole are formed in a rod body of a holding rod, wherein a sampling hose penetrates through the axial core hole, and the transverse rope through hole is communicated with the core hole; a rotating shaft euphroe for winding a fastening rope is arranged at one end of the holding rod, the rope through hole is opposite to the rotating shaft euphroe, and after the fastening rope led out of the rotating shaft euphroe penetrates through the rope through hole and stretches into the core hole, the end of the fastening rope is fixed to the rod body of the holding rod; the fastening rope surrounds the sampling hose by a circle in the core hole, wherein the sampling hose penetrates through the core hole. The sampling hose can be regulated in a ring type packing mode through the fastening rope, the purpose of concentric type flow regulation is achieved, the streamline bundle of water which flows through the sampling hose is always kept cylindrical, and therefore the probability of separating out volatile and semi-volatile materials in a polluted water sample is reduced, and the fidelity degree of the sample is increased.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Nozzle Variable Diameter Insertion Sampler
InactiveCN103759970BNo pollutionAvoid man-made pollutionWithdrawing sample devicesEngineeringOrganic matter
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Nozzle variable diameter plug-in sampler
InactiveCN103743597BNo pollutionAvoid man-made pollutionWithdrawing sample devicesWater flowEngineering
The invention relates to a tube orifice diameter variable spliced sampling instrument which structurally comprises a steady flow buffer tube for receiving a pumped polluted water sample and performing steady flow conveying on the polluted water sample, a pump tube connection mechanism connected with a polluted water sample output pump tube, a diversion pressure regulating valve for regulating water flow pressure of the polluted water sample, a pressure gauge for detecting the water flow pressure, a sampling hose leading the polluted water sample under a laminar condition out of the steady flow buffer tube via a streamline water outlet for water sampling, and a concentric flow regulator for regulating a flow rate of the collected water sample. The instrument changes the composition, the structure and the operating principle of the original organic polluted water sampling device, has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Nozzle variable diameter plug-in sampler
InactiveCN103759975BEasy matingImprove fidelityWithdrawing sample devicesWater flowEnvironmental engineering
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Nozzle variable diameter plug-in sampler
InactiveCN103759974BEasy matingImprove fidelityWithdrawing sample devicesWater flowEnvironmental engineering
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Vanadium ion redox flow battery electrolyte, preparation method thereof and battery thereof
ActiveCN101635363BSimple production processReduce lossesRegenerative fuel cellsFuel cell detailsManufacturing technologyVanadyl sulfate
The invention provides vanadium ion redox flow battery electrolyte, comprising vandic salt, sulphuric acid, additive, deionized water and metal salt can be dissolved in a sulphuric acid system. The electrolyte can greatly improve the cathode system evolution overpotential of the vanadium battery and anode system evolution overpotential, greatly reduce the ratio of gas evolution in the electrolyte caused by various polarizations in the process of operating the vanadium battery, and improve the stability of the electrolyte in the process of charge and discharge. The invention further provides a preparation method of the vanadium ion redox flow battery electrolyte, which eliminates a step of electrolyzing the obtained vanadyl sulfate solution to obtain 50% of trivalent vanadium and 50% of tetravalent vanadium, greatly simplifies the manufacture technology of the vanadium electrolyte which can be directly used for charging and discharging, reduces the lose of the vanadium in the process of preparation, and reduces the preparation cost of the electrolyte.
Owner:BYD CO LTD
Concentric type flow regulator
The invention relates to a concentric type flow regulator. The concentric type flow regulator is characterized in that an axial core hole and a transverse rope through hole are formed in a rod body of a holding rod, wherein a sampling hose penetrates through the axial core hole, and the transverse rope through hole is communicated with the core hole; a rotating shaft euphroe for winding a fastening rope is arranged at one end of the holding rod, the rope through hole is opposite to the rotating shaft euphroe, and after the fastening rope led out of the rotating shaft euphroe penetrates through the rope through hole and stretches into the core hole, the end of the fastening rope is fixed to the rod body of the holding rod; the fastening rope surrounds the sampling hose by a circle in the core hole, wherein the sampling hose penetrates through the core hole. The sampling hose can be regulated in a ring type packing mode through the fastening rope, the purpose of concentric type flow regulation is achieved, the streamline bundle of water which flows through the sampling hose is always kept cylindrical, and therefore the probability of separating out volatile and semi-volatile materials in a polluted water sample is reduced, and the fidelity degree of the sample is increased.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Concentric Flow Regulator
InactiveCN103759969BIncrease fidelityEasy to operateWithdrawing sample devicesEngineeringWater sample
The invention relates to a concentric flow regulator which adopts the following structure that an axial core hole for allowing a sampling hose to be inserted and a transverse rope through hole communicated with the core hole are formed in the rod body of a holding rod; a rotating shaft rope tightener for winding a fastening rope is arranged on the holding rod and in a position at the outer end opening of the rope through hole; after the fastening rope drawn from the rotating shaft rope tightener passes through the rope through hole in the holding rod and enters the core hole, the end part of the fastening rope is fixed on the holding rod; the fastening rope surrounds the inserted sampling hose by a circle in the core hole of the holding rod. The concentric flow regulator achieves ring-type binding regulation of the fastening rope on the sampling hose, achieves the purpose of concentric flow regulation and enables the flow line beam of water passing through the sampling hose to be cylindrical always so as to reduce probability of separating out volatile and semi-volatile substances in a polluted water sample and improve the fidelity of the sample.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Ingot casting furnace and method for preparing silicon ingot
ActiveCN104451874BReduce thicknessIncrease cooling areaPolycrystalline material growthSingle crystal growth detailsThermal insulationIngot
The invention provides a preparation method of an ingot furnace and a silicon ingot. The ingot furnace comprises a thermal insulation cage, a plurality of louvers and baffle plates, wherein a window is formed in the bottom of the thermal insulation cage; the plurality of louvers are arranged below the window; holes which run through the louvers along the direction vertical to the thicknesses of the louvers are formed in the louvers; and the baffle plates are arranged in the thermal insulation cage and are arranged at the bottoms of two side walls of the thermal insulation cage. The heat radiating area of the louvers is increased when the louvers of the ingot furnace are opened, so that the heat radiating rate of the louvers is also increased and the crystal growth drive force at the late growth stage of the silicon ingot is improved. When the ingot furnace adopts a seed crystal process, the heat radiating rate of the bottom of the ingot furnace at a melting stage is increased, and the temperature of the bottom of the ingot furnace is lowered, so that the seed crystal is easy to reserve, and therefore, the quality of the prepared silicon ingot is improved. Meanwhile, the crystal growth drive force at the late growth stage of the silicon ingot is improved, so that the crystal growth rate at the late crystal growth stage is increased, the liquidity of silicon liquid is increased, further fractional condensation of impurities is reinforced, and the outturn percentage is further increased.
Owner:YINGLI GRP +2
Alkali-free liquid accelerator for effectively preventing sprayed concrete from crystallizing to block drainage system and preparation method of alkali-free liquid accelerator
The invention provides an alkali-free liquid accelerator for effectively preventing sprayed concrete from crystallizing to block a drainage system and a preparation method of the alkali-free liquid accelerator. The alkali-free liquid accelerator is prepared from the following raw materials in parts by mass: 40.0-50.0 parts of an inorganic coagulation accelerating component, 2.0-3.0 parts of an organic coagulation accelerating component, 5.0-10.0 parts of organic alcohol amine, 10.0-15.0 parts of a nano early strength agent, 1.0-2.0 parts of a salt crystallization inhibitor, 5.0-10.0 parts of a microcapsule modifier and 40.0-45.0 parts of water. Compared with the prior art, through the compounding synergistic effect of the raw materials, the calcium precipitation probability is reduced from multiple aspects, including the modes of improving the saturation solubility of calcium hydroxide and calcium carbonate, physically / chemically adsorbing calcium ions, reacting with the calcium ions to generate hydration products such as ettringite, so that the phenomenon that calcium compounds in tunnel primary support sprayed concrete capillary pores flow into a blind pipe along with underground water or rock stratum water, crystals are separated out, and then the blind pipe is blocked is effectively improved.
Owner:中国铁路南宁局集团有限公司 +1
Concentric Flow Regulator
The invention relates to a concentric type flow regulator. The concentric type flow regulator is characterized in that an axial core hole and a transverse rope through hole are formed in a rod body of a holding rod, wherein a sampling hose penetrates through the axial core hole, and the transverse rope through hole is communicated with the core hole; a rotating shaft euphroe for winding a fastening rope is arranged at one end of the holding rod, the rope through hole is opposite to the rotating shaft euphroe, and after the fastening rope led out of the rotating shaft euphroe penetrates through the rope through hole and stretches into the core hole, the end of the fastening rope is fixed to the rod body of the holding rod; the fastening rope surrounds the sampling hose by a circle in the core hole, wherein the sampling hose penetrates through the core hole. The sampling hose can be regulated in a ring type packing mode through the fastening rope, the purpose of concentric type flow regulation is achieved, the streamline bundle of water which flows through the sampling hose is always kept cylindrical, and therefore the probability of separating out volatile and semi-volatile materials in a polluted water sample is reduced, and the fidelity degree of the sample is increased.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Water sample collection system and water sample collection method for sampling from pressurized wells
ActiveCN105203354BUniform compression deformationQuick installationWithdrawing sample devicesCollection systemDynamic balance
Owner:BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
Nozzle variable diameter plug-in sampler
The invention relates to a tube orifice diameter variable spliced sampling instrument which structurally comprises a steady flow buffer tube for receiving a pumped polluted water sample and performing steady flow conveying on the polluted water sample, a pump tube connection mechanism connected with a polluted water sample output pump tube, a diversion pressure regulating valve for regulating water flow pressure of the polluted water sample, a pressure gauge for detecting the water flow pressure, a sampling hose leading the polluted water sample under a laminar condition out of the steady flow buffer tube via a streamline water outlet for water sampling, and a concentric flow regulator for regulating a flow rate of the collected water sample. The instrument changes the composition, the structure and the operating principle of the original organic polluted water sampling device, has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Pipe orifice variable plug-in type sampling instrument
InactiveCN103759973AImprove fidelityNo pollutionWithdrawing sample devicesWater flowEnvironmental engineering
The invention relates to a pipe orifice variable plug-in type sampling instrument which structurally comprises a steady flow buffer pipe used for receiving a pumped polluted water sample and steadily conveying the polluted water sample, a pump pipe connecting mechanism fixedly connected with a polluted water sample output pump pipe, a flow dividing pressure regulating valve used for regulating the pressure of the water flow of the polluted water sample, a pressure gauge for detecting the pressure of the water flow, an arc sampling core pipe fixed in the steady flow buffer pipe, a sampling hose connected with an outward extending end of the arc sampling core pipe, and a concentric type flow regulator used for regulating the flow of the collected water sample. The sampling instrument provided by the invention changes the composition, the structure and the working principle of an original organic matter polluted water sample collecting device, and has the characteristics of small size, light weight, wide application range, convenience for carrying and installing, simplicity in operation, safe use, avoidance of polluting the sample in the collecting process, etc., so that the fidelity of the collected sample is increased, the sample collecting cost is lowered, the safety of staffs and equipment is guaranteed, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Plug-in sampler with variable diameter nozzle
InactiveCN103743594BNo pollutionAvoid man-made pollutionWithdrawing sample devicesBobbinConical tube
The invention relates to a tube orifice diameter variable plug-in sampling instrument which structurally comprises conical tubes, straight bobbins, a steady flow buffer tube, a core tube, a diversion pressure regulating valve, a pressure gauge, a sampling hose, a concentric flow regulator and the like. The instrument changes the composition, the structure and the operating principle of the original organic polluted water sampling device, has the characteristics of small size, light weight, wide application scope, convenience in carrying and mounting, simplicity in operation, safety in use, prevention of a pollution link in a collection process of the sample and the like, improves the fidelity of the collected sample, lowers the collecting cost of the sample, and ensures the safety of personnel and equipment, and the universality of the sampling instrument is improved.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Organic pollution water sample negative pressure sampler
InactiveCN103743598BAvoid man-made pollutionAvoid it happening againWithdrawing sample devicesEngineeringPollution
The invention relates to a negative pressure sampler for collecting a water sample containing organic pollutants. The negative pressure sampler comprises a flow stabilizing buffer tube, a pump tube connection mechanism, a flow dividing and pressure regulating valve, an arc-shaped sampling core pipe, a quality stabilizer, a flow regulator, a sampling hose and the like. The negative pressure sampler provided by the invention has the advantages of light weight, convenience in carrying and mounting, simple operation and use safety. Particularly, the collected water sample has a slow change in flow direction and a stable flow line due to the use of the quality stabilizer, thereby obviating generation of air holes, realizing good redissolution effect, improving fidelity of the collected sample, lowering the sample collection cost, ensuring the safety of personnel and equipment and improving the universality of the sampler.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
Nozzle variable diameter plug-in sampler
InactiveCN103759973BNo pollutionAvoid man-made pollutionWithdrawing sample devicesWater flowEnvironmental engineering
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI
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