108 results about "Structural water" patented technology

The invention relates to the technical field of water supply network operation and maintenance detection, in particular to a water supply network multi-pipeline leakage detection and positioning method, which comprises the following steps of: acquiring pressure time sequence data of a monitoring point of a water supply network, processing to generate a standardized pressure fluctuation sequence, and analyzing the data by utilizing a pre-trained leakage reasoning calculation model; leakage suspected degree scores and leakage type classifications are obtained, high-suspected-degree leakage events are screened, and corresponding positions and timestamps are obtained. A transient flow state inversion equation set is built in combination with a pipe network topological structure and a hydraulic model, a standardized pressure sequence is used as a boundary condition, pipe section hydraulic state changes are reversely deduced through a state inversion algorithm, pressure gradient abrupt change points are recognized, corresponding pipe sections are positioned, and leakage types and positioning information are fused to generate a complete detection positioning report. According to the method, leakage types can be accurately distinguished, multi-pipeline concurrent leakage pipe sections can be accurately positioned, non-leakage signal interference is reduced, and the method is adaptive to a complex pipe network leakage detection scene.

The invention discloses a secondary water supply pump station remote operation and maintenance method and system based on the Internet of Things, relates to the technical field of resource management, and realizes accurate identification of'micro water hammer 'implicit disturbance by collecting water supply related data, constructing a disturbance residual factor Dk, judging a water supply state and obtaining a dislocation characteristic index. The problem of missed judgment of short-time and low-amplitude dislocation behaviors in a traditional method is solved, periodic risk fluctuation is quantified through autocorrelation analysis of a time interval sequence, finally, an adjustment strategy is generated in real time in combination with a disturbance countermeasure library and is issued to a main control system, closed-loop control and self-adaptive correction of structural water hammer risks are achieved, and the accuracy of the structural water hammer risk is improved. And the steady-state operation capability of the secondary water supply pump station is effectively improved.

The utility model discloses a hydrostatic pressure distribution diagram demonstration device, which relates to the field of hydrostatic pressure demonstration and comprises a water tank structure, a demonstration structure is fixedly connected to the outer side of the water tank structure, the water tank structure comprises a water tank main body, the inside of the water tank main body is hollow, and a movable plate is in threaded connection with the top end of the water tank main body and comprises a sealing upper cover. According to the hydrostatic pressure distribution diagram demonstration device provided by the utility model, a water body in the water tank structure can be conducted into the demonstration structure by the demonstration device, and a plurality of groups of floating balls with different heights are arranged in the demonstration structure, so that the demonstration effect of the hydrostatic pressure distribution diagram is improved. The device can clearly demonstrate the distribution condition of the hydrostatic pressure at different water levels, is simple in structure, is easy to operate, facilitates the direct display of the hydrostatic pressure during classroom demonstration, and can directly indicate the increase of the pressure according to a linear rule along with the increase of the depth through the observation of the position of the floating ball.

A faucet structure comprises a faucet body, a valve element, a water outlet pipe and a shell. The water outlet pipe comprises a diversion port and a diversion pipe; the diversion port is connected with one end of the diversion pipe in the length direction; the valve core is assembled and connected with the other end of the guide pipe in the length direction; the valve element is used for controlling on-off of water flow of the faucet structure. The faucet body comprises a first limiting part which is located at one end of the faucet body in the length direction, and the valve element is clamped to the first limiting part. The shell comprises at least one cavity, and the faucet body is arranged in the cavity and connected with the shell in a clamped mode. The shell further comprises at least one water outlet, the position of the water outlet in the shell is matched with the length of the flow guide pipe, and the flow guide opening is connected with the water outlet in a clamped mode. By designing the assembly relation, the assembly process of all parts of the faucet structure is simplified, meanwhile, it is guaranteed that the overall structure is compact and reasonable, and the stability of the whole faucet structure is guaranteed; and meanwhile, rigid connection modes such as welding are avoided, and the assembly quality and the maintenance convenience are improved.

The utility model relates to the field of containers, in particular to a dry-cold container with a water curtain wall type heat exchanger. The dry-cold container comprises a container body, which comprises a top beam frame, a bottom beam frame arranged opposite to the top beam frame, and a stand column connected with the top beam frame and the bottom beam frame; the dry cooler installation structure comprises an upper support installed on the top beam frame, a lower support installed on the bottom beam frame and a side support arranged between the top beam frame and the bottom beam frame, and a fan installation structure is further installed on the top beam frame. The water curtain installation structure comprises upper supports installed on the two sides of the top beam frame and lower supports installed on the two sides of the bottom beam frame. According to the dry-cold container with the water curtain wall type heat exchanger, the water curtain installation structures are arranged on the two sides of the container, the length of the container can be prevented from being increased, and the occupied space of the container in the length direction is reduced.

The invention provides water conservancy river channel trash holding and flood prevention equipment. A dam is provided with a water retaining structure, the water retaining structure is provided with a trash holding structure, the side face of the dam is provided with a driving structure, the side face of the water retaining structure is provided with a locking structure, the driving structure corresponds to the water retaining structure, and the locking structure corresponds to the dam; the cleaning structure corresponds to the trash holding structure, a sliding structure is arranged on the water retaining structure, the sliding structure corresponds to the cleaning structure, a collecting structure is arranged on the side face of the dam, and the collecting structure corresponds to the cleaning structure. According to the water conservancy river channel trash holding and flood prevention equipment, the trash holding structure is installed on the water retaining structure, water retaining can be conducted through the water retaining structure in the flood season, trash can be intercepted, the height of the water retaining structure can be adjusted up and down, and therefore adjustment can be conducted according to the flood situation, and the water level height can be adjusted according to needs; and the effect of intercepting garbage at different water levels is ensured.

The utility model discloses a water tray base assembly of an air handling unit, which is characterized in that a sealing plate is arranged in a base frame, a water tray is arranged above a base, and an inserting section is arranged at the upper part of the water tray; a connecting piece is arranged on the periphery of the water disc, a heat preservation and insulation bin is arranged on the connecting piece, and an inserting groove and a water disc cushion block are arranged below the heat preservation and insulation bin. The plug-in groove is used for being matched with the plug-in section in a plug-in manner; a heat insulation layer is filled between the water disc and the sealing plate. The base frame and the sealing plate serve as an outer side enclosure structure, the water pond serves as an inner side enclosure structure, an interlayer is formed through the connecting pieces and filled with the polyurethane foaming material heat preservation material, the heat preservation effect of the water pond is achieved, and the water pond and the base frame are filled into an integral assembly through expansion of the foaming material. The existence of each corner gap is avoided; the supporting piece is pressed on the turnup of the water disc, fixing holes are formed in the two ends to be fixed with the connecting piece, and components such as a heat exchanger and a fan of the unit can be fixed on the supporting piece, prevented from being soaked in water and more durable.

This invention discloses an anti-impact diversion device, comprising a horizontal pipe, a horizontal fixed structure, a horizontal diversion cone, an elastic component, a vertical pipe, a vertical diversion cone, and a vertical fixed structure. The diameter of the horizontal pipe gradually decreases on the outlet side. The horizontal fixed structure is installed on the horizontal pipe. The horizontal diversion cone is placed on the outlet side of the horizontal pipe. The horizontal diversion cone is connected to the horizontal fixed structure via the elastic component, and the bottom diameter of the horizontal diversion cone is larger than the top diameter of the outlet of the horizontal pipe. The vertical pipe is placed on the horizontal pipe and connected to it. The vertical diversion cone is placed on the outlet side of the vertical pipe and connected to the vertical pipe via the vertical fixed structure, and the vertical diversion cone is immovable. The bottom diameter of the vertical diversion cone is smaller than the inner diameter of the vertical pipe. This invention also discloses a rainwater diversion method. This invention can effectively reduce the impact of drainage outlets on the water environment and aquatic ecology.

The application relates to the technical field of data centers, and discloses a secondary side circulating pipe network and a data center liquid cooling system. The secondary side circulating pipe network comprises a circulating pipe structure, a water quality monitoring system, a water quality purification system and a control system. The circulating pipe structure is suitable for forming a circulating loop between a cold distribution unit and a liquid cooling cabinet. The water quality monitoring system is arranged on the circulating pipe structure. The water quality purification system is arranged in parallel with the circulating pipe structure and is used for diluting and purifying water in the circulating pipe structure. The control system is connected with the water quality monitoring system and the water quality purification system, is used for receiving water quality data transmitted by the water quality monitoring system, and controls the on-off between the water quality purification system and the circulating pipe structure according to the water quality data. The application realizes real-time monitoring and data feedback of the water quality of the secondary side circulating pipe network, and realizes the ability of re-purifying and utilizing the deteriorated water quality without stopping the machine and restoring the good water quality.

A method for removing internal moisture which tends to collect in the hulls, decks, stringers, transoms, bulkheads, spars, and other boat structures. Air injection bores are formed in the core or other boat structure in the vicinity of unwanted moisture. Pressurized injection air is injected into the bores through a plurality of air injection lines running from a source of pressurized injection air. The temperature of the air being injected into bores is varied as a function of the temperature and / or relative humidity of ambient air at or near the bores.

The invention discloses a concrete specific heat capacity measuring device and method based on a gradient temperature control circulation method. The system adopts an innovative double-layer heat insulation structure water tank design. The test method comprises three stages: firstly, carrying out an empty box heating test to determine the background heat capacity of the system; then a pre-balanced standard curing test block is put in for a main heating stage; and finally, accurately measuring the heat capacity of the test block through a dynamic balance stage. According to the method, the double-layer heat insulation design and the dynamic equilibrium criterion are creatively combined, the real effective specific heat capacity of the MPCM concrete can be obtained in a complete test block state, the effective specific heat capacity of the MPCM concrete can be directly and accurately quantified on the premise that the real engineering structure form (standard curing test block) of the MPCM concrete is kept, the test precision is improved compared with that of a traditional method, and the method is suitable for popularization and application. The single test time is short, a reliable and efficient test means is provided for thermal performance research and engineering application of the phase change concrete, and the method has universality for testing the specific heat capacity of the concrete material.

The utility model discloses an environment-friendly energy-saving cylindrical heat preservation water tank, and relates to the technical field of water tanks. An environment-friendly and energy-saving type cylindrical heat preservation water tank comprises two supporting seats and a heat preservation water tank body, the heat preservation water tank body is fixedly installed in the two supporting seats, the water flow buffering structure is located in the heat preservation water tank body, and through cooperation of an installation frame, an impingement plate, a first paddle, a second paddle and a rotating shaft, the impingement plate is fixed to the heat preservation water tank body. The two sets of paddles are arranged in a staggered mode at specific angles and intervals, when the water flow passes through, the water flow is firstly divided by the first paddles and guided to different directions, and then the water flow is further dispersed and decelerated by the second paddles, so that the water flow is converted or shunted, and the water flow is guided to different directions through the first paddles and the second paddles. And the water flow buffering depends on a simple mechanical structure, so that the service life of the water flow buffering structure is further prolonged.

The application discloses a method for typhoon disaster prevention and rapid recovery after disaster in deep-sea net cage culture, which comprises the following steps: before the disaster, an unmanned aerial vehicle is used to take aerial photos of the water surface structure of the net cage by carrying a high-definition camera, and an underwater robot is used to collect underwater images by layer scanning through a sonar, so that structure data and fish school data before the disaster are generated; weak points such as framework, netting and anchor chain are analyzed and repaired and reinforced through three-dimensional modeling, the stocking density is optimized in combination with typhoon information, the risk of facility damage and fish loss is reduced, and after the disaster, the structure data and fish school data are repeated, the degree of framework damage, netting damage, anchor chain breakage and fish escape or death is compared and evaluated by taking the data before the disaster as a reference, and a grading repair scheme and disaster relief plan are generated. Through the cooperation of multiple devices and data fusion, the detection accuracy and evaluation efficiency are improved, the damaged parts are quickly located, and the recovery strategy is optimized, so that an efficient disaster prevention and reduction and rapid recovery solution after disaster is provided for the deep-sea net cage culture.

The utility model belongs to the technical field of glass production and processing, and particularly relates to a cleaning device for glass production and processing, which comprises a water tank and a support frame, a storage rack, a cleaning structure and a water spraying structure are fixedly mounted at the top of the water tank, and the storage rack, the cleaning structure and the water spraying structure are fixedly mounted at the top of the water tank. And a conveying structure is fixedly mounted in the supporting frame. Bristles are fixedly installed outside a fixed cylinder, the fixed cylinder is fixedly installed outside a rotating roller, the bristles can be driven when the rotating roller rotates, a water conveying pipe is fixedly installed at the input end of a water pump, and a water distribution pipe is fixedly installed on the outer surface of a water outlet pipe; when a water pump is started, water can be pumped from the interior of a water tank through a water conveying pipe and then pumped into a water distribution pipe through a water outlet pipe, a second gear is fixedly installed at the output end of a motor, a third gear is fixedly installed outside a rotating shaft, and the third gear can be driven when the motor is started to rotate the second gear; and the rotating shaft is rotated.

A concrete structure pool capable of preventing leakage comprises a concrete pool body, a heat preservation layer, a spiral heat exchange pipe, a heating mechanism, a sealing cover heat preservation mechanism, a circulating water flow mechanism and a driving mechanism. A heat preservation layer is arranged on the outer surface of the concrete pool, a spiral heat exchange pipe is arranged in a wall of the concrete pool, the two ends of the spiral heat exchange pipe penetrate through the concrete pool and the heat preservation layer, and a heating mechanism is installed at one end of the spiral heat exchange pipe. A driving mechanism is arranged on the right side outside the concrete pool and matched with the heating mechanism and the circulating water flow mechanism. Heat is blown into the spiral heat exchange pipe through the heating mechanism, so that the water temperature in the concrete water tank is increased, and the freezing and thawing condition in the concrete water tank is avoided; water in the concrete pool flows through the circulating water flow mechanism, the flowing water is more difficult to freeze than static water, and the situation that the concrete pool is damaged and leaks due to freezing and thawing is avoided.

The invention provides a water tank device and a containment assembly, the water tank device is applied to a containment of a nuclear power station, the containment is of a prestressed concrete structure and is a single-layer containment, buttresses are arranged on the outer surface of the containment, and the water tank device comprises at least two water tanks, at least one end of each water tank in the at least two water tanks abuts against the buttress, the at least two water tanks are connected through a connecting water pipe, and the connecting water pipe and the buttress are oppositely arranged. Therefore, according to the stress characteristics of the concrete structure water tank and the prestressed containment structure, the problem that the concrete structure water tank is externally hung after a double-layer containment is optimized into a single-layer containment is solved.

The utility model relates to the technical field of underground drainage equipment, and provides a pressure-limiting anti-floating drainage structure for underground engineering, which comprises a drainage component, the drainage component comprises a drainage base, a drainage groove and guide plates, the drainage groove is arranged in the drainage base, and the guide plates are fixed on the outer walls of two sides of the top of the drainage base. Through the arrangement of the pressure relief structure, after water flow enters the drainage groove, the water level in the drainage groove gradually rises, the water pressure gradually increases, and then under the action of pressure, the water flow enters the pressure relief cavity through the communicating pipe and is drained into the water storage cavity through the drainage hole; and then the water flow is re-drained into the drainage groove through the water pump and the drainage pipe, in the process, pressure relief can be conducted on the water flow, the situation that the water level rises when the water flow flows, large buoyancy is generated, and the drainage structure is damaged is avoided, the pressure limiting and anti-floating functions of the device are achieved, and the service life of the pressure limiting and anti-floating drainage structure is prolonged.

The spraying arm comprises a main spraying arm body and an auxiliary spraying arm body, a water outlet is formed in the main spraying arm body, the auxiliary spraying arm body is connected to the water outlet in a rotating mode, a protruding edge extending upwards is arranged on the edge of the water outlet, and the main spraying arm body and the auxiliary spraying arm body are connected in a rotating mode. The bottom wall of the auxiliary spraying arm is provided with a water inlet arranged outside the protruding edge in a sleeving mode, the protruding edge is provided with a limiting part which extends upwards and penetrates through the top wall of the auxiliary spraying arm, and the top of the auxiliary spraying arm is provided with a top cover capable of restraining the limiting part and the auxiliary spraying arm together in a rotating mode. By the adoption of the structure, when water flow enters the auxiliary spraying arm from the main spraying arm, the water flow is stably transited to the horizontal direction from the vertical direction, no water flow pressure exists in the vertical direction of the auxiliary spraying arm, rotating friction of the auxiliary spraying arm can be effectively reduced, and the auxiliary spraying arm can stably rotate so as to be prevented from being clamped; and meanwhile, no water flow pressure exists in the up-down direction of the auxiliary spraying arm, and the discharge amount is reduced.

The invention discloses a foundation pit quality monitoring method and system for constructional engineering, and relates to the technical field of safety monitoring of constructional engineering, and the monitoring method comprises the steps of data collection, space-time alignment, dynamic coupling analysis, grading early warning decision and block chain evidence storage. The method has the advantages that a multi-source sensor network space-time alignment method is combined with a soil-structure-water flow dynamic coupling model, cooperative monitoring and coupling analysis of displacement, soil pressure, underground water and the like are achieved, and sensor clock drift and space positioning errors are eliminated through the space-time alignment technology; the dynamic coupling model fully reflects complex responses of a foundation pit system under different working conditions through self-adaptive weight distribution in the construction stage, the limitation of traditional single-parameter monitoring is overcome, the monitoring result is more suitable for engineering practice, and the method is suitable for various geological conditions and foundation pit depth scenes.

The application discloses a water seal rainwater inlet and a preparation method thereof, and belongs to the technical field of drainage collection and water seal equipment. The water seal rainwater inlet comprises a well body, a rainwater grate and a water seal assembly. A guide rail is arranged on the inner side wall of the well body in the vertical direction. The water seal assembly is a detachable modular water seal box, which is provided with a guide structure for sliding cooperation with the guide rail. The water seal box is provided with an outlet opening at the bottom, and a water outlet is formed in the upper part of the side surface of the water seal box, which faces the drainage outlet of the well body. The water seal box is modular and detachable through the guide rail, and the rainwater collection and water seal functions are highly integrated. The water seal rainwater inlet has the characteristics of small land occupation, low investment, convenient maintenance and replacement, flexible material selection, strong adaptability and high safety. The preparation method can realize factory prefabrication, is convenient for construction, and is controllable in quality, and is particularly suitable for fire-fighting wastewater collection and fire safety reconstruction in fine chemical industries.

The utility model relates to high pressure cleaning technical field discloses a multifunctional high pressure cleaning device, include: frame, constitute the main support structure of device, water tank, fixed mounting is in the frame, is used for water storage, its top is equipped with water injection hole plug cover and transparent water level observation area, high pressure cleaning rifle is connected with water tank through high pressure pump pipe, high pressure cleaning rifle includes cleaning rifle switch handle, cleaning rifle pipe and detachable cleaning spray head, control module is installed on the frame, is used for controlling high pressure water flow start -stop and pressure regulation. The replaceable cleaning spray head and integrated cleaning liquid filler that set have improved the multifunctionality and flexibility of equipment remarkably. Through replacing the cleaning spray head of different jet mode, the user can select the most suitable jet mode according to the specific cleaning demand, thereby reaching the best cleaning effect.

This invention discloses a method for evaluating the hydrodynamic response of flexible floating structures considering the equivalent effect of impermeable upper water. First, a three-dimensional hydroelastic-porous sidewall coupled model is established, equating the flexible structure to an elastic disk below the still water surface, with the outer impermeable boundary equivalent to a porous sidewall with minimal permeability. By dividing the external water area, the internal confined overlying water layer, and the lower water body and defining velocity potentials, semi-analytical solutions for the velocity potentials of each region are constructed using the separation of variables method and the eigenfunction expansion method. Combining fluid continuity conditions and porous sidewall matching conditions with pressure jump compensation, watershed matching is performed to solve for each modal coefficient, and then wave excitation force, deflection response, and free surface response are calculated. This invention, through layered modeling and near-impermeable boundary equivalence treatment, evaluates the water-blocking effect of the solid floating ring and the influence of the confined overlying water layer on the hydrodynamic response of the flexible structure, providing a theoretical basis for the structural optimization and wave-resistant design of floating photovoltaic systems under impermeable upper water conditions.

The invention provides a transducer installation structure, a water flow metering method and an ultrasonic intelligent water meter. The transducer installation structure comprises a water meter base, a transducer installation assembly and a transducer. The water meter base comprises a water inlet interface, a water outlet interface and a main body part, the main body part is provided with a pipe groove section which is communicated with the water inlet interface and the water outlet interface and is used for circulating water, one side of the pipe groove section is provided with a mounting opening, and the periphery of the mounting opening is provided with a connecting part; the transducer mounting assembly comprises a fixing part, a transducer mounting hole and a detection part, and the transducer mounting assembly is integrally mounted in the mounting port in an embedded manner; the detection part is a long hole formed in the bottom of the transducer installation assembly, the long hole is parallel to the pipe groove section, a circular seam is formed between the outer side of the detection part and the inner wall of the pipe groove section, and a circulation groove or a circulation hole is formed in the side, close to the transducer installation assembly body, of the detection part. The inside and the outside of the long hole form an internal channel and an external channel. The device has the advantages of being convenient to disassemble and high in anti-interference capacity.

The invention relates to the technical field of water conservancy automation control, in particular to a self-adaptive water level regulation sluice control linkage system which comprises a water level acquisition module, a main control module, a communication module and an execution mechanism module, and a self-adaptive closed-loop control structure is formed through data interaction among the modules. The water level acquisition module is used for acquiring upstream and downstream water levels in real time and generating a stable water level signal; the main control module integrates a self-adaptive water level prediction control unit, a distributed linkage control unit and an execution mechanism health diagnosis unit which are respectively used for generating a predicted water level and a target opening degree, realizing multi-water-gate cooperative adjustment, evaluating the health state of an execution mechanism and implementing compensation control; the communication module is used for realizing state synchronization and linkage instruction interaction among multiple water gates; and the execution mechanism module executes the water gate action according to the target opening degree and provides opening degree feedback. By means of the structure, self-adaptive adjustment and multi-stage linkage of the water gate can be achieved under the complex water level change condition.

To provide an inter-tunnel cut-off structure, a cut-off sheet, and a construction method for a large-section tunnel, which can be easily and surely constructed.SOLUTION: This water cut-off structure 3 between the tunnels is provided with a water cut-off sheet 4 arranged astride the adjacent box bodies 2, and a pressing tool 5 for holding an end part of the water cut-off sheet 4, and this construction method of the large cross section tunnel 1 uses this water cut-off structure 3 between the tunnels. A thickened part 44 is formed at the end of the water stop sheet 4 by providing a core material 42. A locking part 52 is formed at the end of the pressing tool 5, and the pressing tool 5 presses the water stop sheet 4 at the position of the core material 42 and holds the end of the water stop sheet 4 in a state of being locked to the thickened part 44 by the locking part 52.SELECTED DRAWING: Figure 2

The present invention relates to a Lightweight Bottle with Interwoven Structure for bottled drinking water formed from polyethylene terephthalate (PET) through a stretch blow molding process. The bottle includes a mouth, neck, shoulder, body, and bottom, wherein the body is divided into a first zone, a second zone, and a third zone. The first zone is formed by vertical ribs. The second zone is formed by at least one horizontal line or rib surrounding the body to form a ring-like structure. The third zone is formed by main stiffening ribs that intersect to form an interwoven pattern. The base of the bottle is equipped with reinforcing ribs that work in an integrated manner with the third zone. The number of structural elements in each zone is kept constant across various bottle capacities, while their geometric dimensions are adjusted proportionally to the bottle size.The structural configuration forms an integrated load distribution path from the mouth to the base, thereby increasing the bottle's ability to withstand axial loading (top load) with efficient material use.

Embodiments of the present application provide a leakage water detection method and device based on a leakage water detection apparatus, electronic equipment and a storage medium. It relates to the technical field of power grid. The leakage water detection apparatus comprises a water collecting structure and a water level measuring structure, the water level measuring structure comprising a water level sensor, a conductive strip and electronic equipment; the method comprises: in the process of accumulating water when the actual water level of the leakage water reaches a preset dangerous warning water level, if the actual water level of the leakage water is detected by the water level sensor to reach the preset dangerous warning water level, the leakage water is discharged from the water collecting structure; according to the emptying water collecting structure and the conductive strip, a first warning signal is generated. In the process of accumulating water, if the leakage water speed of the leakage water is detected by the water level sensor to be greater than or equal to a preset leakage threshold, a second warning signal is generated. The first warning signal and / or the second warning signal is sent to a preset monitoring device. The method is used to improve the detection accuracy of the leakage water generated in the power distribution room and the electric well room.

The invention provides a water-saving sprinkling irrigation device which is characterized in that a lower connecting pipe is arranged on a bracket, and the bottom end of the lower connecting pipe is connected with an external water supply pipe; a mounting disc is arranged on the lower connecting pipe; the upper connecting pipe is rotationally arranged on the lower connecting pipe, a spiral blade is arranged in the upper connecting pipe, and the spray gun is arranged at the top end of the upper connecting pipe; the angle presetting mechanism is arranged on the mounting disc, the angle presetting mechanism is connected with the upper connecting pipe, and the angle presetting mechanism is used for presetting an initial spraying position and detecting the rotating angle of the upper connecting pipe; the angle presetting mechanism is sleeved with the protective sleeve. The spiral blades are arranged in the upper connecting pipe, so that water flow drives the upper connecting pipe to rotate when flowing into the upper connecting pipe from the lower connecting pipe, a blocking structure does not need to be arranged on a water flow spraying path in the driving mode, water flow kinetic energy cannot be consumed due to mechanical blocking, the phenomenon of water flow scattering is reduced due to the blocking structure, and invalid loss of water resources is reduced; the water-saving property of the sprinkling irrigation device is improved.

The invention discloses an anti-rotation parallel type pump set structure, belongs to the technical field of pump sets, and solves the problems that an existing parallel type pump set water pump is prone to generating a rotation trend and poor in operation stability. The device comprises a plurality of water pump structures connected in parallel, water inlets and outlets of water pumps are connected with connecting pipes through flange plates, limiters are arranged on two sides of the connecting pipes, and through oil ways are communicated among the limiters with the same stress. The limiter is sleeved in the fixator, the tail end of the limiter is connected with the electromagnet, the permanent magnet is arranged at the head of the fixator, and the limiter and the permanent magnet are sealed with the inner wall of the fixator, can horizontally slide and repel each other after being electrified. By means of the incompressible characteristic of hydraulic oil, force borne by the limiter is transmitted through an oil way and counteracts mutually, rotation of the water pump is restrained by combining the repulsion effect of the electromagnet and the permanent magnet, the structure is compact, maintenance is convenient, the stability of a pump set is effectively improved, vibration noise is reduced, the service life of parts is prolonged, and the device is suitable for various industrial fluid conveying scenes.

1. The name of the design product: heat exchanger (hanging structure water fluorine). 2. The use of the design product: the design product is used for heat exchanger. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.