292 results about "Free water" patented technology

The present invention discloses a fine-grained high-density concrete and its production process, which relates to the field of concrete technology. The concrete comprises solid granular material, cement, water, and nano anti-shrinkage additives; the unit volume of the solid granular material is 1m 3 The weight of each component is based on G A :G c :G js :G a； Among them, G A is the weight of solid particulate material per unit volume, G c is the weight G A The weight of cement filled in the void volume of solid particulate material, G js For the weight of external water, including G c The sum of the weight of water required for cement hydration and rheological properties of concrete before curing minus the weight G A The weight of water in the solid particulate material; G a The weight of the nano-anti-shrinkage additive added to the pore volume after cement hydration, minus the excess free water volume. Fine-aggregate, high-density concrete has a much lower porosity than ordinary concrete, significantly improving the concrete's compressive, flexural, and durability properties.

The invention relates to an automatic magnesium oxide coating analysis system and method, and belongs to the technical field of coating quality analysis. The method comprises the following steps: acquiring attributes of a magnesium oxide coating, an infrared spectrum and environment temperature and humidity data, and constructing a multi-source feature set; analyzing the distribution dispersion and local enrichment risk of free water based on a dynamic migration model, and analyzing the bonding weakening degree and dissociation risk of bound water based on a chemical stable state model; respectively generating free water treatment process parameters for inhibiting structural damage and combined water treatment process parameters for preventing performance degradation according to the abnormal analysis result and the coating attribute; by performing coupling influence analysis on the two types of process parameters, the balance requirements of the structural integrity and chemical stability of the coating are coordinated, an optimized process scheme is generated, and cooperative regulation is realized. According to the method, accurate identification, independent analysis and cooperative control of the free water and the bound water are realized, and the accuracy, reliability and quality consistency of coating water treatment are improved.

The invention discloses a seepage field adaptive analysis method and device based on a flexible polygon unit, and the method comprises the steps: dividing the polygon unit into a plurality of sub-regions, and constructing an internal water head field of each sub-region; recognizing a free water surface according to water head features extracted from the internal water head field of each sub-region; if the free water surface is recognized for the first time at present, or the error of the positions of the free water surfaces recognized by two adjacent rounds of iteration does not meet a preset condition, quadtree decomposition is carried out on the free water surface to obtain new sub-regions; returning to the step of extracting the water head features according to the internal water head field of each sub-region until the error of the positions of the free water surfaces identified by two adjacent rounds of iteration meets a preset condition, and obtaining a grid division result of the polygon unit; and performing seepage field analysis on the polygon units based on a grid division result to obtain a seepage field analysis result. According to the method, the complex seepage field is accurately simulated, and the optimal balance between high-precision discretization near the free water surface and the overall calculation efficiency is realized.

The invention discloses a water injection regulation and control method based on deep reinforcement learning under data and model fusion driving, and the method comprises the following steps: collecting operation parameter data under an oil field injection-production working condition, and carrying out the data preprocessing; a model-free water injection regulation strategy is designed, a traditional oil yield prediction model is removed, and a water injection action is directly generated based on an environment state by constructing a state-action space containing the parameters; a soft actor-commentator (SAC) algorithm and a long short-term memory network (LSTM) collaborative decision framework are adopted, an oil reservoir parameter time sequence rule is captured by using LSTM to provide state prediction for SAC, and water injection and oil extraction joint debugging of a well group is optimized in combination with a state-driven dynamic reward function; a priority experience playback mechanism is introduced to optimize SAC training, and the action generation efficiency is improved. According to the model constructed by the method, the calculation complexity is remarkably reduced, the oil production is improved, the water content is reduced, and the method has relatively high practical value and economic benefits and is particularly suitable for water injection regulation and control scenes under complex oil reservoir conditions.

Disclosed in the present invention are a gel having a regulatable free water content and morphology, a preparation method therefor, and the use thereof. The method comprises: S1, preparing a solution A from a natural polymer material; S2, mixing a small molecule material containing a positively charged polar group with the solution A to obtain a composite solution B; S3, mixing the composite solution B with a regulator to obtain a composite solution C, stirring same, then adding a condensing agent to the reaction system, and carrying out a curing crosslinking reaction; and S4, removing the regulator and the condensing agent to obtain the gel. By adjusting the concentrations of the natural polymer material and the regulator, gels having different morphologies can be prepared; the gel undergoes a physical process to remove hydrogen bond interaction between the gel and free water, so that the content of free water attached to the surface of the gel can be regulated, thereby regulating the physical and chemical properties of the gel. The gel of the present invention has regulatable morphology and controllable elastic modulus, and has many advantages such as good lubrication effect, good biocompatibility and biodegradability, capability of being biologically active, and capabilities of stimulating cell growth and accelerating wound repair.

The invention relates to the technical field of soil physical parameter in-situ measurement, and discloses a soil layer natural water content portable intelligent measuring instrument based on multi-source sensing fusion, which comprises a composite probe assembly and an intelligent measurement and control host which are physically connected, the composite probe assembly is configured to be inserted into a soil layer to be tested to construct a multi-physical field test environment, and an electrical transceiving unit and an acoustic transceiving unit are integrated in the composite probe assembly. By constructing a cross physical field excitation and multiphase parameter collaborative decoupling mechanism, a multidimensional dynamic correlation model is established by using the thermosensitive drift characteristic of the sound velocity of a mixed medium during thermal disturbance and the transient step response of a dielectric constant under an acoustic radiation force field; the problems that the coupling influence of the water content and the volume weight cannot be distinguished and the conductivity of bound water and the conductivity of free water are difficult to separate in a traditional means are effectively solved, and four independent physical quantities including the volumetric water content, the in-situ dry volume weight, the bound water content and the actual conductivity of pore water are synchronously inverted through a single probe. And the decoupling precision of the equipment on complex multi-phase soil medium parameters is improved.

The invention relates to the technical field of water supply control, and discloses an intelligent quality-based pressure-superposed non-negative pressure water supply control system and method, and the system comprises a data collection control module, a volume identification module, a water age observation module, a mixing decision module, and an impedance verification module. The effective volume parameters of the steady flow compensation tank are inversed through the pressure response characteristics of the variable frequency booster pump set in the starting stage; dynamically calculating the hydraulic retention time in the tank based on the system flow and the effective volume; when the residence time exceeds a safety threshold value, a forced mixing strategy is generated, and municipal inlet water is driven to be mixed with residence water by adjusting the opening degree of a bypass electric adjusting valve and controlling a pump set to operate; and meanwhile, verifying the effectiveness of the mechanical action of the valve according to the deviation between the real-time power and the theoretical reference power of the pump set after the regulation instruction is issued. Volume parameters can be corrected in real time, aged water is actively replaced under the low-flow working condition, closed-loop verification is carried out on faults of an executing mechanism, and the water supply quality and the system reliability are guaranteed.

The invention belongs to the technical field of building materials, and provides film-coated modified high-molecular water-absorbent resin, flow-state solidified soil with the film-coated modified high-molecular water-absorbent resin and a preparation method of the flow-state solidified soil with the film-coated modified high-molecular water-absorbent resin. The super absorbent polymer (SAP) material is coated to limit or prevent the SAP from absorbing water in the mixing and construction process, so that enough preset time is reserved, then a coating film on the surface of the SAP is gradually dissolved, and the free water in the convective solidified soil is rapidly absorbed. Therefore, the shrinkage problem of the flow-state solidified soil and the adverse effect of durability caused by high water consumption are effectively solved, water is gradually released in the later period to promote hydration, and the strength of the flow-state solidified soil is further improved.

The invention belongs to the technical field of testing, and particularly relates to a high-pound-level thin-wall part flange-free water pressure test anti-deformation device which comprises a workbench, a positioning assembly, a pressurizing assembly and a rotating assembly, the positioning assembly is arranged above the workbench and comprises a supporting circular plate, a hollow cylinder is fixed to the bottom of the supporting circular plate, and the rotating assembly is arranged on the supporting circular plate. The hollow cylinder is rotatably matched with the working table, a plurality of positioning bosses for positioning a test piece are arranged on the upper surface of the supporting circular plate, the pressurizing assembly is used for increasing water pressure for the test piece and comprises a plurality of plugging blocks arranged above the working table, and the plugging blocks coaxially correspond to the positioning bosses respectively. According to the invention, a traditional direct clamping and fixing mode is abandoned, so that the possibility that the test pieces are extruded and deformed by external force when being fixed is avoided, in addition, a plurality of test pieces are tested at the same time, the working continuity is high, the time required by the test is effectively shortened, and the test efficiency is improved.

The invention discloses a primer and a method for quantitatively monitoring the biomass of sargassum hemiphyllum based on an environmental DNA technology, and belongs to the technical field of molecular ecology. The primer probe group comprises an upstream primer, a downstream primer and a fluorescent probe which are specifically targeted to the sargassum hemiphyllum mitochondria COX1 gene, and the sequence is shown as SEQ ID NO.1-3. The kit comprises the primer probe group, a qPCR (quantitative polymerase chain reaction) premixed solution, nuclease-free water and a sargassum hemiphyllum plasmid positive control. The method comprises the following steps: collecting a water sample, enriching eDNA, performing qPCR detection by using the primer probe group after extraction and purification, and realizing qualitative detection and quantitative evaluation of sargassum hemiphyllum through a Cq value or a standard curve. The method disclosed by the invention has the advantages of high sensitivity, strong specificity, no damage to the environment and target organisms, capability of realizing large-scale rapid general survey and the like, and is suitable for early warning of gulfweed blooms, investigation of population distribution and evaluation of ecological influence.

The invention belongs to the technical field of geogrids, and discloses a geogrid with a drainage function and a manufacturing device and method.The geogrid comprises a plurality of grid strips, the grid strips are divided into drainage strips and common strips, each drainage strip comprises a groove-shaped strip body, a drainage groove is formed in the groove-shaped strip body in the length direction of the groove-shaped strip body, and the common strips are arranged in the drainage groove. Geotextile is arranged on the groove-shaped strip body and located on the notch side of the drainage groove, the common strip comprises a rectangular strip body and a groove-shaped strip body, a plurality of fiber tows are arranged in the rectangular strip body at intervals, drainage strips are adopted as the longitudinal grid strips, and drainage strips or common strips are adopted as the transverse grid strips. The design of the longitudinal drainage strips is adopted, the drainage channel penetrating in the longitudinal direction is formed, free water in the soil body can be rapidly collected and directionally drained out of an engineering area, the soil body saturation degree is effectively reduced, the residence time of water in the soil body is shortened, and the problems that due to water accumulation, the dead weight of the soil body is increased, and the bearing capacity is reduced are solved.

The preparation method comprises the following steps: pretreating raw materials such as pig front leg meat and fat, stirring and mixing the pretreated raw materials with remaining auxiliary materials, a non-phosphorus water-retaining agent and an anti-freezing protective agent, and finally performing ultrasonic pickling, forming treatment and freezing storage, thereby obtaining the high-flavor-quality Sizhixia meatballs. The anti-freezing protective agent particles are adopted, so that generation of harmful substances in the frying process can be inhibited, and oxidation of protein and fat in the freezing storage process can also be inhibited; free water in the Sizhixia meatballs can be converted into bound water, the damage degree of frozen storage to protein is reduced, the sensory quality of the Sizhixia meatballs is improved, flavor substances in the Sizhixia meatballs can be adsorbed, the situation that the flavor quality of the Sizhixia meatballs is affected due to great loss of the flavor substances is avoided, and a research basis is provided for quality control of the Sizhixia meatballs; the industrial production process is promoted.

The present invention relates to a modified citrus fiber product, wherein the modified citrus fiber product has a gel strength of from 30 SAG to 100 SAG and a degree of esterification of from 30% to 100%. The invention also relates to a method for producing said modified citrus fiber product. The present invention avoids the use of an activation step involving the conversion of trapped water-insoluble pectin to free water-soluble pectin using chemicals (e.g., acids) while still obtaining a suitable amount of free water-soluble pectin to produce a citrus fiber product having a gel strength (SAG) of between 30 SAG and 100 SAG. Avoiding such an activation step ensures that the intrinsic factors of the pectin contained in the modified citrus fiber product are comparable to those found in the natural citrus fiber source.

The application relates to an automatic magnesium oxide coating analysis system and method, and belongs to the technical field of coating quality analysis. The method comprises the following steps: acquiring the properties, infrared spectrum and environmental temperature and humidity data of the magnesium oxide coating, and constructing a multi-source feature set; analyzing the distribution dispersion and local enrichment risk of free water based on a dynamic migration model, and analyzing the bond weakening degree and dissociation risk of combined water based on a chemical stability model; generating free water treatment process parameters for inhibiting structural damage and combined water treatment process parameters for preventing performance attenuation according to abnormal analysis results and coating properties; and through coupling influence analysis on the two types of process parameters, the balance requirements of coating structural integrity and chemical stability are coordinated, an optimized process scheme is generated, and synergistic regulation and control are realized. The application realizes accurate identification, independent analysis and synergistic control of free water and combined water, and improves the accuracy, reliability and quality consistency of coating moisture treatment.

The utility model relates to dehydration device technical field, and disclose a kind of sound-absorbing board production forming section dehydration device, and realize secondary extrusion dehydration by setting extrusion dehydration device, extrusion structure, suction structure etc., sound-absorbing board is extruded first, and sound-absorbing board is preliminarily extruded by upper roller and lower roller, and free water of board surface layer is extruded surface, and water of board extrusion is sucked by negative pressure inside water-collecting cavity, and it is evenly entered into water-collecting cavity inside by mesh surface, after sound-absorbing board is sucked and rebounded by back tent device, reach the inside of extrusion dehydration device of auxiliary frame A side, again extruded between upper roller and lower roller, and board is compacted to target thickness, simultaneously, water that moves out from core portion when rebounding is fluffy extruded, make negative pressure inside water-collecting cavity through mesh and promptly suck extruded water, wherein containing surface layer and core portion residual free water, and make water distribution even in sound-absorbing board interior, and it has the effect of uniform dehydration.

The utility model relates to the technical field of box type water supply, in particular to a box type non-negative pressure water supply device for municipal building water supply, which comprises an I-shaped chute plate A, an I-shaped chute plate B, a positioning mechanism and a damping mechanism, the positioning mechanism comprises a circular ring, a fixed rod and a spring, and the fixed rod is sleeved with the spring. Through the arrangement of the damping mechanism, eight dampers arranged at the corners of the bottom of the box-type water supply device body play a damping role, the situation that the service life of equipment is shortened due to vibration generated by working of electrical elements in the box-type water supply device body is avoided, and meanwhile the stability performance of the box-type water supply device body is improved; through the arrangement of the positioning mechanism, the insertion holes formed in the I-shaped sliding groove plate A and the I-shaped sliding groove plate B correspond to scale values, and the box type water supply device bodies with different lengths and widths can be matched by sliding the I-shaped sliding block and the positioning mechanism.

The present application relates to a kind of open channel water distribution equalization control method and system, method includes: according to the maximum water inflow, the total water inflow of total water inflow range is pre-set;All biological treatment units are divided into the fixed water amount group of control water inflow and the free water amount group of not control water inflow;When the water inflow of free water amount group and the water inflow of fixed water amount group reach preset condition, judge the total water inflow range of current needs adjustment and adjust the total water inflow range of current, then adjust the water inflow of fixed water amount group.The setting of group, make part of filter's water inflow be controlled according to total water inflow, then by adjusting the total water inflow range, get the most suitable water distribution mode, when not set total water inflow flow metering equipment in the biological treatment unit in sewage treatment facility, can be realized by the control logic through open channel water distribution mode to each biological treatment unit for more balanced water distribution purpose, finally guarantee the load balance of each biological treatment unit when running.

The invention discloses a stage targeting scallop adductor non-phosphorus water-retaining agent containing antifreeze glycopeptide and application, and relates to the technical field of food additives. The antifreeze glycopeptide-containing stage targeting scallop adductor phosphorus-free water-retaining agent consists of an agent A and an agent B, and does not contain phosphate additives, the agent A is permeable anti-freezing liquid and is prepared from the following components in percentage by mass: 5.0 percent to 9.0 percent of trehalose, 3.0 percent to 5.0 percent of sorbitol, 0.8 percent to 1.5 percent of sodium citrate, 0.4 percent to 1.0 percent of compound amino acid, 0.01 percent to 0.1 percent of high-activity anti-freezing glycopeptide, 0.01 percent to 0.05 percent of vitamin C, 0.01 percent to 0.05 percent of rosemary extract and the balance of water. According to the antifreeze glycopeptide-containing phase-targeting scallop adductor non-phosphorus water-retaining agent and the application thereof, ice crystal damage and protein denaturation are inhibited from the source, and cell-level protection of scallop adductors is realized. Through detection, the unfreezing loss rate of the treated scallop adductor is as low as about 2.12%, the cooking loss rate is as low as about 10.63%, and the water retention capacity is close to that of a commercially available phosphate water retention agent and is remarkably superior to that of an existing non-phosphorus water retention agent.

Methods of separating water, salt, CO2, and crude oil from wastewater, the methods comprising: providing gas / oil separation system that produces a waste saline water stream and a CO2 stream; providing an electrochemical cell having an anode, a cathode, and three electrodialytic compartments; feeding a fresh water stream to the anode to produce H+ and O2; feeding the waste CO2 stream and O2 to the cathode to produce bicarbonate (HCO3—) and hydroxide ions (OH−); feeding the waste saline water stream to a center electrodialytic compartment; wherein the sodium Na+ from the waste saline water stream reacts with the bicarbonate to form NaHCO3 and the chloride (Cl−) from the waste saline water stream reacts with the H+ to produce hydrochloric acid; and producing salt and desalinated water.

The application provides an acid soil improvement method, comprising the following steps: step one, measuring soil pH, mixing the soil sample to be measured with carbon dioxide-free water, stirring and standing until precipitation, and then measuring the pH of the supernatant by using a pH meter; step two, determining the amount of the improvement agent, pre-setting the soil pH, and determining the application amount of any one of Ca(OH)2, CaO and CaCO3 according to a calculation formula; and step three, an application method, crushing lime, sieving, uniformly spreading on the surface of soil, and then rotary tilling the soil to fully mix the lime with the soil; the application only needs to measure one index of soil basic pH, and then the required application amount of lime can be obtained by substituting the pre-set target pH into the formula; the application is accurate, scientific, efficient, convenient and economical; and the lime should be applied once every 2-3 years to achieve the purpose of long-term improvement of acidification of red soil.

The present application relates to a kind of soft soil reconsolidation under dynamic load processing method, solve the vibration drainage of existing soft soil in consolidation method vibration frame structure, it is difficult to manufacture vibration support foundation, construction is inconvenient, the problem of destruction of foundation after recovery.The method mixes cement in upper layer soil, forms cement soil base layer with strength in C5-C15;Uniformly set water pipe on cement soil base layer;Vibration rod is set in each water pipe;Place stack load plate on cement soil base layer, and vibration machine is fixed on stack load plate;Vibration machine fixed on stack load plate vibrates, drives vibration rod in water pipe, and free water generated after vibration is collected in water pipe, water in water pipe is discharged using water suction pump, until no free water is discharged after a period of vibration operation.The present application solves the problem that general vibration machine cannot effectively vibrate deep layer soil, and removes free water generated after vibration from soil, simultaneously, promotes soil particle to rearrange, and enhances soil compactness.

The invention provides a preparation method of a fluorine removal agent based on modified red mud, which comprises the following steps: modifying industrial red mud, adding a certain amount of activated carbon, and mixing. The method for modifying the industrial red mud comprises the following steps: drying the industrial red mud and limestone until free water does not exist, and respectively grinding and sieving; mixing the ground industrial red mud and limestone according to a certain proportion, and adding a small amount of purified water to infiltrate to obtain a mixture of the industrial red mud and the limestone; adding an activating agent into the mixture for acidification activation, adjusting the pH value to be less than 1, stirring and standing to obtain an activated mixture; and evaporating the activated mixture to dryness, and calcining to obtain the modified red mud and limestone mixture. The industrial red mud is used as the raw material, the process is simple, the cost is low, waste resources are recycled, and the method has a good application prospect.

The present application relates to a kind of fluorine-free water and oil repellent and its preparation method and application, the water and oil repellent of the present application has very strong water and oil repellent effect, and can meet its water and oil repellent demand for paper pulp molded product surface coating.The raw materials required by the method are simple and easy to obtain, the preparation method is simple and easy to operate, low in cost and environmentally friendly, and non-toxic to human body, while the water and oil repellent effect is excellent, suitable for industrial production.

The invention relates to a two-component thermally conductive composition comprising: a composition (A) comprising: a silylated polymer, and a rheology agent (r1) selected from amide waxes and / or a rheology agent (r2) comprising: from 1% to 40% by weight of a bis-urea (a) obtained by reacting a primary aliphatic amine with a diisocyanate of molar mass less than 500 g / mol, relative to the total weight of the rheology agent (r2), and from 60% to 99% by weight of a specific plasticizer (b), relative to the total weight of the rheology agent (r2), said rheology agent (r2) being in the form of a suspension of solid particles of the bis-urea (a) in a continuous phase of plasticizer (b), and a composition (B) comprising: at least 1% by weight of a filler (C) relative to the total weight of the composition (B), the filler (C) contributing at least 0.0025% by weight of moisture relative to the total weight of the composition (B),Composition (A) and / or composition (B) further comprising at least one thermally conductive filler. The invention also relates to the use of a filler (C) having a specific moisture content for crosslinking, without the addition of free water, a two-component composition, the two-component composition comprising a composition (A) comprising a silylated polymer, and a composition (B) comprising said filler (C). Figure for the abstract: none.

The utility model provides a kind of fabric for clothing and contain its sweat suit. The fabric includes surface layer, membrane layer and bottom layer. The surface layer uses warp plain or weft plain knitting technology, and is treated using water repellent finishing process. The water repellent finishing process used by the surface layer contains fluorine-free water repellent auxiliary and C4, C6 water repellent auxiliary. The membrane layer is thermoplastic polyurethane membrane layer or polyurethane membrane layer. The sweat suit prepared by the above-mentioned fabric has windproof and light rainproof effect, providing comfortable wearing experience for the wearer.

Systems and methods for separating water from an oil and water mixture are provided. A free water knockout vessel includes a mechanical separation section, an electrostatic coalescence section, and a gravitational separation section. A process for separating water from an oil and water mixture includes mechanical separation of the “free” water, electrostatic coalescence of emulsified water via one or more electrode assemblies, and separation of the coalesced water.

The application discloses a breeding method for improving the quality of Sebastes schlegelii fry, and comprises the following steps: collecting parent fish in a Sebastes schlegelii original seed field, artificially cultivating the parent fish in a net cage at sea, and performing nutrition rejuvenation on the parent fish; obtaining offspring fry by using an artificial fry squeezing method; controlling reasonable culture density according to different fry specifications; screening and using natural plant active ingredients and common micro-ecological preparations which are easy to absorb; avoiding disinfection and drug use; and controlling water flow rate in different growth stages. The method integrates nutrition rejuvenation, artificial fry production, pollution-free water quality regulation and fry behavior state regulation, solves problems such as poor parent germplasm, dead fry or insufficient activity of fry, slow growth and poor stress resistance in the process of fry breeding, has strong controllability in the operation period, has high survival rate of fry, has remarkable growth promotion and immunity effect, has good prevention and treatment effect on bacterial diseases, realizes pollution-free fry breeding, can reduce disease occurrence and mortality, reduces the feed conversion ratio, and effectively improves the economic benefit of breeding.

This invention relates to a thickening and water-retaining agent with a branched network structure and its preparation method. The raw materials, by weight, include: 10 parts of unsaturated acid monomer; 5-40 parts of acrylamide; 1-5 parts of unsaturated amide monomer; 3-10 parts of unsaturated sulfonate monomer; 2-5 parts of workability-modifying monomer; 0.5-2 parts of oxidant; 0.5-6 parts of polymerizable reducing agent; and water. The thickening and water-retaining agent with a branched network structure prepared by this invention, during the hydration process of cement, continuously adds branched structure through the hydrolysis effect of amide groups, and continuously and slowly releases free water to replenish the free water consumed during hydration. This meets the flowability requirements of concrete after hydration, solving the problems of existing thickening and water-retaining agents that cannot simultaneously meet the initial and post-hydration thickening and water-retaining properties and flowability requirements of concrete, and also addressing the issue of storage stability.

The utility model relates to a concrete-free water-tight type telescopic device. An existing bridge expansion device is sealed in a concrete pouring mode, complete compactness cannot be guaranteed, and the water sealing performance is poor. The device comprises a water stop piece, the water stop piece is located at the top of a structural joint between a first beam body and a second beam body, and the two longitudinal ends of the water stop piece are fixed to the end face of the first beam body and the end face of the second beam body respectively; mounting grooves are formed in the upper parts of the end surfaces of the first beam body and the second beam body; and elastic sealing pieces are filled in the mounting grooves and above the water stop pieces. Concrete pouring is replaced by elastic sealing piece pouring, the elastic sealing piece can circulate in the space between the installation groove and the water stop piece, gaps between the water stop piece and the first beam body and gaps between the water stop piece and the second beam body are filled and sealed, sealing can be better conducted, the problem that water leakage is caused due to the fact that a traditional water stop belt is not installed in place is solved, and the service life of the water stop belt is prolonged. Therefore, the water sealing performance of the telescopic device is further improved.

The invention relates to the technical field of heavy oil detection, in particular to a method for detecting the content of organic chlorine in heavy oil, which comprises the following steps: removing free water from to-be-detected heavy oil containing free water to obtain a heavy oil sample containing emulsified water, taking out the heavy oil sample containing emulsified water, adding a solvent which has a boiling point higher than 204 DEG C and is insoluble in water to obtain a diluted crude oil sample, and measuring the content of organic chlorine in heavy oil. The method comprises the following steps: centrifuging and dehydrating a thin oil sample to obtain a dehydrated crude oil sample, distilling the dehydrated crude oil sample to obtain fractions at the temperature of 204 DEG C or below, and detecting by using a micro-coulomb method to obtain the content of organic chlorine in the thickened oil. According to the method, the water-insoluble solvent with the boiling point higher than 204 DEG C is used for diluting the thickened oil, then the distillate oil with the boiling point higher than 204 DEG C is distilled out, and then the content of the organic chlorine in the distillate oil with the boiling point higher than 204 DEG C in the crude oil is determined by the microcoulometric method, so that the method has the advantages of high efficiency, simplicity and accurate measurement result, meets the GB / T 18612 requirement, and can realize rapid and accurate detection of the content of the organic chlorine in the water-containing thickened oil.