489 results about "Hydrostatic test" patented technology

The invention relates to the technical field of hydraulic test of nickel alloy pipes, and discloses a hydraulic test system for a thin-wall nickel alloy pipe. According to the system, in the axial loading state of the thin-wall nickel alloy pipe, a closed water pressure cavity is established through an annular sealing clamp, and then strain distribution data on the surface of the pipe body is collected through a distributed optical fiber sensor array. And constructing a three-dimensional stress field reconstruction model based on the acquired strain distribution data, calculating an equivalent plastic deformation threshold value of the pipe body under different water pressure gradients, adjusting a water pressure loading curve slope parameter according to the equivalent plastic deformation threshold value, and generating a dynamic water pressure loading instruction. And the high-frequency pressure pulse generator executes the instruction, synchronously triggers the X-ray diffractometer to collect lattice distortion data of the tube body, inputs the data into the material microscopic damage evolution model, and outputs a microscopic defect spatial distribution map. And finally, material constitutive parameters of the three-dimensional stress field reconstruction model are corrected based on the atlas, closed-loop feedback control is formed, and multi-dimensional data acquisition and accurate management and control of the thin-wall nickel alloy pipe hydrostatic test are achieved.

The invention discloses a pipeline water pressure test device, and relates to the technical field of water pressure tests. The device comprises a mounting frame, wherein a first mounting plate is rotationally mounted on one side of the mounting frame; the third driving piece drives the connecting rod to slide, fluid shock waves are generated at the end, namely a flow channel, of water in the lower pipeline under the action of the cylindrical block so as to simulate the water hammer phenomenon, a water hammer eliminator is simulated through compressed air in the upper pipeline, water flow in the pipeline is buffered and adjusted, and the water hammer phenomenon is simulated. The influence of the water hammer phenomenon on the pipelines is reduced, after the impact experiment is completed, water injection pressurization can be conducted on the two communicated pipelines through the water injection pipe, air in the pipelines is discharged, then the two pipelines are separated through the plugging piece, and the two pressure detection mechanisms can detect the water pressure in the two pipelines respectively. According to the invention, a fluid shock wave simulation test can be carried out on the pipeline, the loading capacity and the sealing performance of the pipeline can be tested in a static pressurization mode, and the device is convenient and easy to use.

The invention discloses a method for calculating an internal water pressure rejection threshold value of a disc type suspension porcelain insulator, which comprises the following steps of: (1) extracting n samples of the porcelain insulator, performing a destructive internal water pressure test, and sorting the water pressure values of the damaged samples from small to large; (2) estimating a probability value of the destroyed water pressure to obtain a data set of a destroyed sample; (3) products with the proportion of the first k% destroying water pressure are set as defective products, the first k% of data are removed from the data set D0, and a data set Dk of qualified products is obtained; (4) calculating the saliency Pr (k) of the data set Dk of the qualified products; (5) selecting different k%, repeating the step (3) and the step (4), calculating corresponding Pr (k), and finding out kbest; and (6) calculating a water pressure rejection threshold value Sth selected on the production line. According to the method, inferior-quality products and qualified products are divided according to the saliency of Weibull distribution fitting correlation coefficients, and the rejection threshold value of the water pressure test in the disc type suspension porcelain insulator is determined. According to the method, defective products are scientifically removed, and the quality of outgoing products is improved.

The water passing ball device comprises a starting pipeline with a ball receiving chamber, a water ejecting ball is arranged in the ball receiving chamber, the starting pipeline is connected with an installation pipeline, the installation pipeline forms a ball serving chamber, the installation pipeline is detachably connected with the long conveying pipeline, and the long conveying pipeline is connected with the water ejecting ball. The starting pipeline is connected with an external pipeline used for conveying media to the starting pipeline, the media in the external pipeline can abut against the water jacking ball so that the water jacking ball can overcome the elastic force of the installation pipeline and the elastic force of the long-distance conveying pipeline to move along the long-distance conveying pipeline, air in the long-distance conveying pipeline can be exhausted, the water jacking ball can be filled in the serving ball, the water inlet is connected, and the exhaust valve is opened. According to the invention, a discharge port is not arranged at a high point along the way of the long-distance pipeline, the cost is reduced, and the hidden danger of leakage in the future pipeline operation process is reduced. The water inlet control valve is opened, the ball is pressed to the ball receiving chamber at the tail end of the pipeline by using the pressure of water, and a hydrostatic test is carried out on the pipeline through the pressurizing pump.

According to the comparison test method for testing the sealing performance of the valve by using the water pressure and the air pressure, different leakage opening degrees are designed for the test valve under different water pressure test pressure working conditions of the test valve; a water pressure drop method sealing test device and an air pressure flow method sealing test device are respectively used for carrying out a comparison sealing test on the same leakage opening degree to obtain different leakage rates of the water and the air medium under respective test pressures under the leakage opening degree, and finally, the leakage rate conversion relation of the water and the air medium under different test pressures is analyzed and obtained. The device is used for finding out the leakage rate conversion relation of water and gas media under different test pressures, and solves the problems that the leakage rate detected by a gas pressure flow method cannot directly reflect the valve leakage condition and is lack of acceptance standards.

The invention relates to the field of GRP pipeline pressure testing, in particular to a large-diameter GRP pipeline pressure testing method, which comprises the following steps of S1, performing preparation work before pressure testing; s2, a pre-hydrostatic test: carrying out segmented pressurization on the pipeline to be subjected to pressure test; s2, checking whether the pipeline to be subjected to pressure test leaks or not, if leakage occurs, repeating S2 after overhauling, and if leakage does not occur, continuing pressurizing to test pressure; s3, main hydrostatic test: after reaching the test pressure, maintaining the pressure for 30-35 minutes, reducing the pressure to the working pressure if the pressure drop is less than or equal to 0.02 MPa during the pressure maintaining period, and maintaining the pressure for 30-35 minutes; checking whether the pipeline to be subjected to pressure test leaks or not, and if yes, repeating the steps S2-S3 after overhauling; if no leakage exists, the main hydrostatic test is ended; and S4, discharging water and releasing pressure, and dismounting the temporary pressure test system. According to the pressure testing method, the characteristics of the material of the GRP pipeline are comprehensively considered, and the problems that in a traditional pressure testing method, the GRP pipeline is prone to being damaged due to too fast pressure loading and the construction period is prone to being affected due to too slow pressure loading are effectively solved in a segmented pressurization and multi-stage pressure maintaining mode.

The invention relates to the technical field of pipeline water pressure testing, in particular to a pipeline water pressure testing device. The device aims at solving the technical problems of monitoring and controlling pressure, temperature and flow in the pipeline water pressure testing process, coping with water flow impact, guaranteeing testing safety and stability and the like. A pressure sensor I, a temperature sensor and a flow sensor I are arranged to collect data, and a data collection and control system receives the data and generates a control instruction to control a pressure pump, a regulating valve and a pressure release valve to work in combination with parameters input by an operator. Meanwhile, a plurality of energy accumulators, buffer units and other components are arranged to stabilize pressure and buffer water flow impact. The device is mainly used for water pressure testing of various pipeline systems, and ensures the pressure resistance and safety of pipelines.

The invention provides a plugging device for a pipeline hydrostatic test and a hydrostatic test method. The plugging device comprises a pipeline; the plugging device is used for sealing the pipeline in the hydrostatic test method and is arranged at the outlet end of the pipeline. The extending end of the hydraulic cylinder pushes the release sealing end to extend out of the sleeve and enter the pipeline, it can be guaranteed that when the release sealing end extends into the pipeline, the servo motor drives the lead screw to rotate, then the lead screw nut continuously moves in the transverse direction of the lead screw, and therefore the release sealing end can be effectively released. The arc-shaped sealing face is pushed to be unfolded in the longitudinal direction of the pipeline, the arc-shaped sealing face can be tightly attached to or press the inner wall of the pipeline, a better contact face is formed, the sealing performance is enhanced, the sealing performance is further improved, and meanwhile high stability can be kept in the high-pressure water pressure test process.

The invention relates to the technical field of nickel alloy pipe water pressure detection, and discloses a thin-wall nickel alloy pipe inner wall water pressure test detection system and method. The method comprises the steps that a closed water pressure environment is established in a pipe, a preset pressure gradient is applied, and pipe wall deformation response data are collected through a distributed sensing array; and generating a composite feature matrix containing axial strain, circumferential stress and radial displacement features through multi-dimensional feature extraction, inputting the composite feature matrix into a material performance degradation evaluation model, and simulating microstructure change to output a potential defect distribution map. Dynamically adjusting the water pressure gradient and the pressure maintaining time according to the map, executing a secondary water pressure test, and capturing a microscopic deformation sequence image through high-frequency imaging; comparing the image with a model prediction result identification deviation value, and iteratively updating a model parameter to optimize a detection threshold value; the test is completed by optimizing the threshold value, qualified pipe section marks and defective pipe section positioning coordinates are output, and the comprehensiveness and accuracy of thin-wall nickel alloy pipe inner wall defect detection are 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 fractured rock mass hydraulic pressure test and array electrode monitoring and detecting device and a using method, and relates to the technical field of hydraulic engineering geological investigation, the fractured rock mass hydraulic pressure test and array electrode monitoring and detecting device comprises an upper plug and a lower plug arranged below the upper plug, a floral tube is fixedly arranged between the lower plug and the upper plug, and a water pump pipe is arranged on the upper plug; the upper plug and the lower plug are both sleeved with sealing air bags, an air pumping assembly is arranged above the upper plug, the portion, above the lower plug, of the floral tube is sleeved with an air guide ring, an electromagnetic valve is arranged between the air guide ring and the air conveying pipe, and a pneumatic telescopic assembly is arranged at the air outlet end of the air guide ring. A conductive wire is wound on the outer side of the floral tube, a waterproof sealing cylinder is arranged on the conductive wire, an electrode bar is arranged in the waterproof sealing cylinder, and a waterproof sealing assembly is arranged on the side, away from the floral tube, of the waterproof sealing cylinder. And the spatial distribution of the pressurized water area fracture system is inverted.

The invention relates to the technical field of blind plate detection, and aims to provide a hydraulic test method for detecting a pressure-bearing sealing blind plate of a pump shell, which comprises the following steps: mounting a blind plate to be tested, performing a first pressure boosting test, performing a first pressure relief test, performing a second pressure boosting test and performing a second pressure relief test, multiple times of pressure relief and pressure maintaining are carried out in the first pressure relief test and the second pressure relief test, and whether leakage points and deformation points exist or not is observed; through two times of boosting tests of different water temperatures, complex working conditions during operation of the main pump can be simulated, so that test results are more accurate.

The invention discloses full-automatic operation equipment for a hydrostatic test of an ultra-slender steel pipe in the technical field of steel pipe detection, and the full-automatic operation equipment comprises a bearing unit which comprises a workbench for placing the steel pipe and two groups of detection parts which are symmetrically arranged on the two sides of the workbench; the working table is a place where hydraulic pressure test detection work is carried out, the detection component is an equipment automation unit used for hydraulic pressure detection and comprises a lifting component inserted into the working table in the vertical direction, two sets of driving wheels arranged at the bottom of the working table and a driving gear arranged on the side face of one set of driving wheels, and the driving gear is meshed with the driving wheels. And the connecting gear is arranged between the two groups of driving wheels. By arranging the automatic unit capable of automatically replacing and filling the steel pipe on the bearing unit, automatic replacement and filling of the steel pipe in the steel pipe hydrostatic test process are realized, so that the purpose of full-automatic operation of the steel pipe hydrostatic test is realized, the defects of manual operation are overcome, and the working efficiency is improved.

The invention provides an intelligent adjusting method and system for a steel pipe hydrostatic pressure valve, and relates to the technical field of equipment control, and the method comprises the steps: obtaining the specification parameters of a to-be-tested steel pipe; the volume of the steel pipe is calculated according to the specification parameters, adjusting parameters are dynamically determined according to the volume and the wall thickness of the steel pipe, meanwhile, a target pressure value is set according to a preset pressure curve, and in the hydrostatic pressure testing process, pressure signals and flow signals in the steel pipe are collected in real time; comparing the pressure signal with a set target pressure value to obtain a pressure deviation, and integrating the pressure signal and the flow signal which are acquired in real time into a group of multidimensional discrete data sequences according to a sequential relationship. According to the invention, accurate, stable and automatic closed-loop control of the pressure in the hydrostatic pressure test process of the steel pipe is realized.

The invention provides an explosion-proof tank hydraulic pressure test device and a test method thereof, and belongs to the technical field of explosion-proof tank hydraulic pressure tests. A hydraulic pressure test device for an explosion-proof box comprises an L-shaped rack, a concave support, a concave bearing plate, a vertical rod, an L-shaped connecting pipe, a first circular moving block and abutting parts, when a pressing plate descends, the pressing plate can be used for pressing the top of the explosion-proof box placed on the concave bearing plate, and meanwhile the two abutting parts are driven to abut against the two corresponding sides of the explosion-proof box respectively, so that the top of the explosion-proof box is pressed. When the pressing plate ascends to be separated from the top of the explosion-proof box, the two abutting parts do not make contact with the two corresponding sides of the explosion-proof box. Double clamping of the top and the side face of the explosion-proof box is achieved by driving the pressing plate to descend, the clamping force and stress uniformity are remarkably enhanced, the test stability and safety are improved, meanwhile, the second circular moving block is used for conveying gas to be matched with the pressing plate to blow gas to the top of the explosion-proof box, the explosion-proof box is cleaned, the contact effect is optimized, and it is ensured that test data are accurate.

The invention relates to the technical field of hydropower station pressure steel pipe detection, in particular to a hydropower station steel branch pipe differential graded loading and unloading hydrostatic test method, system and equipment and a storage medium. The hydraulic test process is scientifically divided into a low-pressure stage, a medium-pressure stage and a high-pressure stage, differentiated boosting amplitude and speed control strategies are adopted in the different stages, the technical limitation of a traditional uniform graded boosting method is broken through, and an innovative control mode of low-pressure fast rising and high-pressure slow rising is achieved. The large boosting amplitude and the high boosting speed are adopted in the low-pressure stage, the bearing allowance of the steel branch pipe in the elastic deformation stage is fully utilized, and the test efficiency is remarkably improved; and in the high-pressure stage, the small pressure increasing amplitude and the slow pressure increasing speed are adopted, the sensitive characteristic when the steel is close to the yield strength is effectively adapted, and the local stress concentration and plastic deformation risks are avoided.

The invention provides a nuclear power generator compactness test method. The nuclear power generator compactness test method comprises the following steps: S1, cleaning; and the to-be-detected product is comprehensively cleaned. S2, preparation before measurement; and the end socket and the cover plate are assembled to ensure that the product forms a sealed cavity. And S3, carrying out an airtight test. And S4, preliminary inspection. And S5, carrying out a hydrostatic test. And S6, performing secondary inspection. And S7, reducing the pressure. And S8, dismounting the end socket and the cover plate, and completing the detection. By combining the airtight test and the hydrostatic test, the compactness of the nuclear power generator can be comprehensively detected, a detection blind area possibly existing in a single test method is effectively avoided, a special pressure boosting and reducing mode is adopted for hydraulic pressure detection, the accuracy and reliability of a test result are guaranteed, welding residual stress can be effectively eliminated, and the reliability of the nuclear power generator is improved. And the sealing performance and the structural stability of a nuclear power generator product are obviously improved.

The invention relates to a rapid sealing method for a deep sea equipment hydrostatic test measuring wire joint, and the method comprises the following steps: 1, selecting a sealing region, and sealing the sealing region; the sealing area comprises a metal section formed after the external metal core is connected and further comprises an outer skin head section adjacent to the external metal core, the length of the metal section is L1, and the length of the outer skin head section is L2; step 2, cleaning the surface of the sealing area; step 3, cutting out a rubber-based pressure-sensitive adhesive tape with a proper length, and wrapping the rubber-based pressure-sensitive adhesive tape outside the sealing area; and 4, the rubber-based pressure-sensitive adhesive tape is tightly attached to the outer surface of the sealing area in an extrusion mode, so that the sealing operation of the wire connector can be conducted on an operation site, the method is simple, the cost is low, and the good sealing performance is achieved.

The utility model relates to the technical field of water pressure test, and discloses a pressure test pump, which comprises a driving gas circuit, a low-pressure pump and a high-pressure pump, the driving gas circuit is used for externally connecting compressed gas, the compressed gas is used for driving the high-pressure pump and the low-pressure pump, and a water inlet and a water outlet of the high-pressure pump are communicated with a water tank and a detected piece in a sealing manner; the low-pressure pump and the high-pressure pump work simultaneously or independently, and a water inlet and a water outlet of the low-pressure pump are communicated with the water tank and a detected piece in a sealed mode respectively. According to the pressure test pump, the high-pressure pump and the low-pressure pump are combined for use, the characteristics that liquid output by the high-pressure pump is large in pressure and small in flow are utilized, and the characteristics that liquid output by the low-pressure pump is large in flow under the pressure are utilized, so that the problem that an existing pressure test pump is long in time of outputting liquid into a detected piece is solved; and meanwhile, the pressure test effect of the pressure test pump is not influenced.

The invention discloses a valve test protection device, belongs to the technical field of valve tests, and aims to solve the problem that an overpressure explosion risk exists in a water pressure strength test of an existing valve. A valve test protection device comprises a connecting piece, a shell, a valve head and a pressing rod, the shell is a hollow component with a lower opening, the upper portion of the connecting piece is in threaded fit with the lower opening of the shell, a medium inlet hole and a medium discharging hole are formed in the connecting piece, the valve head is located in the shell and opens or seals a medium inlet, and a sinking groove is formed in the upper end face of the valve head. The lower end of the pressing rod abuts against the groove bottom of the sinking groove, the upper end of the pressing rod penetrates through the top wall of the shell, the pressing rod is sleeved with a disc spring assembly, the upper end of the disc spring assembly abuts against the top wall of the shell, and the lower end of the disc spring assembly abuts against a shaft shoulder structure at the bottom of the pressing rod. When the pressure of the water pressure test equipment is increased to the relief pressure, the pressure of the medium water is relieved through the device, and the valve shell explosion caused by overpressure in the valve water pressure strength test is avoided.

The invention provides a material for detecting water pressure test leakage and a preparation method and a detection method thereof, and particularly relates to the technical field of pressure-bearing equipment sealing performance detection. The material for detecting the leakage of the hydrostatic test comprises the following raw materials in parts by weight: 20-50 parts of anhydrous cupric sulfate powder; and 50-80 parts of calcium carbonate powder. According to the material, the characteristic that the anhydrous cupric sulfate powder rapidly chemically reacts when meeting water to generate blue copper sulfate pentahydrate is utilized, and leakage points on the surface of equipment can be sensitively detected during a hydrostatic test.

The utility model discloses a hydrostatic test device for a pressure vessel, and particularly relates to the technical field of hydrostatic tests, comprising a test bench, the upper surface of the test bench is provided with a water collecting tank, the upper surface of the test bench is fixedly provided with a pair of vessel limiting plates for placing the pressure vessel, and the pair of vessel limiting plates form a V-shaped structure. A lifting mechanism is arranged in the test bed, a pressing and fixing structure and a pressure test pump are arranged on the lifting mechanism and are both arranged on the upper surface of the test bed, the pressing and fixing structure is used for pressing and fixing a pressure container arranged on the pair of container limiting plates, and the output end of the pressure test pump is fixedly communicated with a sealing taper sleeve. According to the utility model, the problem that the efficiency of a water pressure test is influenced due to the complicated connection between pipes during the pressure test connection of the pressure vessel is solved; and the technical problem that the pressure container is mostly in an exposed state during the hydrostatic test, so that the safety of the pressure container during the hydrostatic test is insufficient is solved.

The utility model discloses a water pressure testing machine for a fire hydrant muzzle. The water pressure testing machine comprises a pressure testing shell, a water storage tank, a pressure testing pump and a pressure stabilizing tank are sequentially arranged on the bottom wall of the pressure testing shell from left to right, a liquid outlet of the water storage tank is communicated with a liquid inlet of the pressure testing pump through a connecting pipe, a liquid outlet of the pressure testing pump is communicated with a liquid inlet of the pressure stabilizing tank through a connecting pipe, and a water outlet pipe penetrates through the top wall of the pressure stabilizing tank; the upper end of the water outlet pipe penetrates through the wall body of the pressure test shell and is provided with a right-angle pipe; the left end of the right-angle pipe is provided with a mounting seat; the fire hydrant muzzle hydraulic pressure testing machine further comprises a single-chip microcomputer, the single-chip microcomputer is arranged on the inclined face of the upper end of the pressure testing shell, the input end of the single-chip microcomputer is electrically connected with an external power source, and the output end of the single-chip microcomputer is electrically connected with the input end of the pressure testing pump. Meanwhile, the device can recycle, filter and reuse water generated in the fire hydrant muzzle hydraulic pressure test process, and water resources are saved.

A hydrostatic test device for an inclined swirler of a heavy duty gas turbine comprises an annular base for containing the inclined swirler, two parallel sealing ring grooves are formed in the inner conical surface of the base, and rubber sealing rings matched with the sealing ring grooves are arranged in the sealing ring grooves. The two parallel sealing ring grooves and the rubber sealing ring enable the upper portion and the lower portion of a blade hole in the side face of the inclined cyclone to be tightly attached, the effect of sealing the blade hole can be achieved in the hydrostatic test, the device further comprises three to six pressing plates which are evenly distributed on the surface of a circle of the inclined cyclone, and the pressing plates press the inclined cyclone through bolts and locking nuts. A copper plate is arranged between the pressing plate and the end face of the inclined cyclone.

The utility model discloses a special water pressure test blocking plate for a steel skeleton composite pipe, which comprises a steel skeleton composite pipe body with a pipe wall thickening section at the end part, and a blocking plate for blocking the end part of the steel skeleton composite pipe body is arranged at the end part, close to the thickening section, of the steel skeleton composite pipe body. The peripheral face of the steel skeleton composite pipe body is sleeved with a locking sleeve piece making contact with the thickening section, and the locking sleeve piece and the blocking plate are connected through a plurality of fastening sleeve pieces. The tool is simple in structure, fast to manufacture and convenient to use, the tool can be recycled, the blocking plate can be fixed to the end of the steel skeleton composite pipe body through mutual matching of the locking sleeve piece and the fastening sleeve piece, and meanwhile follow-up replacement of the blocking plate is facilitated.

The invention discloses a prestressed concrete cylinder pipe water hammer real-time distinguishing and positioning system for hydraulic monitoring and a mounting and using method, the system comprises a plurality of sensors located on a concrete cylinder pipe, the concrete cylinder pipe is also provided with a flow velocity meter, and the flow velocity meter and the sensors are both connected with an acquisition device. The high-frequency pressure pulsation sensors and the flow meters are reasonably arranged in the PCCP, high-frequency change data of the water pressure and the flow speed in the PCCP can be obtained in real time, compared with a traditional water pressure test or static monitoring method, the dynamic fluctuation process of the water pressure and the flow speed can be captured, the hydraulic boundary condition change in pipeline operation can be comprehensively reflected, and the method is suitable for popularization and application. And data support is provided for hydraulic analysis and safety evaluation.

An integrated high-efficiency hydrostatic test device for a motor shell comprises a rack, an operation table and a test bed, the operation table and the test bed are arranged on the rack to form a whole, a water tank is arranged in the lower space of the operation table, a motor pump set is arranged in the lower space of the operation table, and a permanent magnet direct drive motor is adopted as a motor; the test bench comprises a workpiece placing device, a pressing and clamping device and a communicating device. The operation table and the test table comprise enclosure structures; the workpiece placing device comprises a base and T-shaped bolts, and the base is provided with a plurality of T-shaped grooves; the pressing and clamping device comprises a pressing support, a pressing oil cylinder, a pressing block, a pressing flange, a clamping oil cylinder and a clamping support which are arranged in a cross shape and press and clamp the two sides and the two ends of the motor shell respectively. The communicating device comprises an oil cylinder valve block, a pipe connecting seat, a stop valve, a quick connector, a connecting hose, a water filling and pressing connector and a water discharging opening. The pressing test process is safe and reliable, the motor shell is more convenient to install, the error rate of connecting pipelines is reduced, and the working efficiency is effectively improved.

The invention relates to the technical field of pipeline hydrostatic testing machines, and discloses a high-pressure water equipment detection system which comprises a hydrostatic testing machine and a fixing clamp connected in the hydrostatic testing machine, one side of the inner wall of the hydrostatic testing machine is fixedly connected with a motor, the output end of the motor is fixedly connected with a main shaft, and the outer wall of the main shaft is sleeved with two sample discharging assemblies. The fixing clamp is located between the two sample discharging assemblies, each sample discharging assembly comprises a connecting plate, connecting toothed bars, a sample discharging plate and a fixing block, the two ends of each connecting plate are fixedly connected with the inner wall of the hydrostatic testing machine, the fixing blocks are fixedly connected with the sides, close to the fixing clamp, of the connecting plates, and the two symmetrically-arranged connecting toothed bars are fixedly connected to the bottom of the sample discharging plate; a sliding groove corresponding to the connecting toothed bar in position is formed in the surface of the fixing block. According to the high-pressure water equipment detection system, by using the lower sample plate, the upper sample block and the limiting plate, the pipeline can be subjected to one-time sample discharging and sample feeding, and batch automatic treatment of the pipeline is achieved.

The present invention discloses a pipeline water pressure test device, which relates to the technical field of water pressure test. The present invention comprises: a mounting frame, on one side of which a first mounting plate is rotatably mounted. The present invention drives the connecting rod to slide through a third driving member, so that the water in the lower pipeline generates a fluid shock wave at its end, that is, at the flow channel, under the action of a cylindrical block, to simulate the water hammer phenomenon, and through the compressed air inside the upper pipeline to simulate the water hammer eliminator, the water flow in the pipeline is buffered and adjusted to reduce the influence of the water hammer phenomenon on the pipeline, and after completing the impact test, the two connected pipelines can be injected with water through the water injection pipe to pressurize and exhaust the air therein, and then the two pipelines are separated by a plugging member, so that the two pressure detection mechanisms can respectively detect the water pressure in the two pipelines. Compared with the prior art, the present invention can simulate the fluid shock wave test on the pipeline, and can also test the pressure bearing capacity and sealing performance of the pipeline by static pressurization, which is more convenient and easy to use.

The invention provides a pump valve shaft seal water hydraulic pressure test detection device which comprises a box body, a partition plate is fixed in the box body, an opening is formed in the partition plate, a movable plate is movably installed in the opening, a displacement mechanism and a positioning column are fixed to the movable plate, a positioning pipe is movably installed at one end of the positioning column, and the other end of the positioning pipe is provided with a clamping groove. The positioning pipe and the displacement mechanism are both fixed to the side of the box body, a pushing mechanism is fixedly installed on the side of the box body, fixing assemblies are installed on the pushing mechanism, a valve body is movably installed between the fixing assemblies, a cavity is formed in the box body, and the valve body is movably installed in the cavity. During use, before the pump body is installed, the ring seat drives the fixed pipe to move, the fixed pipe provides a required space for installation of the valve body after moving, the ring seat and the fixed pipe enter one end of the valve body in the later period, the valve body is limited and supported through the fixed pipe, and the movable seat moves in the later period to extrude and fix the valve body between the fixed seats; and air enters the fixed pipe at the later stage, and the elastic seat deforms to be in contact with the valve body for sealing during air intake.