45results about How to "Reduce the number of pipes" patented technology

The invention belongs to the technical field of rock mass mining fracture permeability determination, and discloses a borehole single loop pressurized-water control system based on overlying strata diversion fissure zone detection. The borehole single loop pressurized-water control system comprises a plugging test system, a propelling system and a supply control system. The plugging test system comprises a plugging device, a communicating pipe and a transverter, and a water injecting cavity is formed by the plugging device and a drill hole. The transverter is located on the tail portions of afront portion plugging device and a middle portion plugging device, and is internally provided with an inner ring, a spring, a cross wire sleeve, a water storage tank and a water diversion hole, the inner ring is provided with a water passing hole and communicates with the water storage tank, a externally-connected water source is transported to the water-injection cavity through the water diversion hole, and the permeability of the borehole fracture is detected. The borehole single loop pressurized-water control system based on the overlying strata diversion fissure zone detection can use thesame water source to realize the plugging and observation process under the respective pressure, pipes in a borehole is reduced to one, the problem of the drill pipe winding is avoided, the stabilityof the observation process is improved, the observation water pressure can be adjusted according to the need, the measurement process of propelling multiple stages at one time can be realized at thesame time, and the observation efficiency is improved.

The invention discloses an electro-hydraulic proportional multi-hydraulic winch control system and a control strategy thereof. The system comprises three hydraulic winches, a load sensing pump (1), acontrol pump (2), an electric proportional overflow valve (3) and a system operational module. The three hydraulic winches are each provided with an electro-hydraulic proportional integrated controller. Each electro-hydraulic proportional integrated controller comprises two-way cartridge valves V1, V2, V3 and V4, an operational amplification module MK, a two-way working hydraulic motor MT, two-position four-way electromagnetic directional valves V5, V8, V11 and V14, three-position four-way electromagnetic proportional directional valves V6, V9, V10 and V13, an overflow valve V7, an overflow valve V12, a hydraulic pump pux and a hydraulic pump puy. The control strategy comprises three working conditions including rising, median stop and falling of the hydraulic winches. According to the electro-hydraulic proportional multi-hydraulic winch control system and the control strategy thereof, central pumping station multi-winch hydraulic control energy consumption is further reduced, and multi-winch high-precision collaborative operation is further achieved.

The invention belongs to the technical field of a rock mass failure range and permeability measurement, and discloses a rock mass permeability in situ test device. The device comprises a test probe, apropulsion mechanism and a control mechanism, the test probe comprises a rubber capsule, a water leakage pipe, a converter and a communication pipe, the two ends of the water leakage pipe are respectively connected to a joint one, a joint two or a joint three, the rubber capsule is wrapped on the outer side of the water leakage pipe between the two joints, and a certain sealing cavity is formed between the rubber capsule and the water leakage pipe. The inside of the converter is provided with a conical conversion body, a water-passing hole and an annular water tank are respectively formed inthe inside and the surface of the conical conversion body, and a water leakage passage is formed with the hole in the converter. The test device can utilize the switch of a sealing high-pressure watersource to an observation low-pressure water source, achieve work of a sealing process and a test process under the same water source and respective pressures, reduce the number of pipes in a boreholeto one, eliminate the problem of entanglement of a drill pipe and a hose, and improve the stability of the work process.

The invention relates to the technical field of hardware bathroom accessories, in particular to a combination type detachable shower head which comprises a top-mounted spray nozzle, a handheld spray nozzle, a bottom-mounted drain faucet and a fixing support. The bottom-mounted drain faucet is fixed to a drain outlet of a water outlet pipe, and the fixing support is fixed onto a wall. The combination type detachable shower head has the advantages that the handheld spray nozzle can be clamped on a bottom connecting frame at the lower end of a top drain pipe, then an internally threaded adjustingpipe can rotate, and accordingly water outlets inside the handheld spray nozzle can be switched over under the control; the handheld spray nozzle is fixedly communicated with the top-mounted spray nozzle, accordingly, a water inlet pipe of the top-mounted spray nozzle can be replaced with the handheld spray nozzle, the quantity of pipelines of the combination type detachable shower head can be reduced, and the consumable cost can be lowered; the mounting locations for the top-mounted spray nozzle can be changed as needed, and accordingly the combination type detachable shower head is humanized when used.

The application provides an expansion kettle, a cooling system and an automobile. The expansion kettle includes a kettle body, and the kettle body is provided with a first chamber and a second chamber and a first through hole communicating the first chamber and the second chamber; the kettle The body is provided with a pipeline communicating with the interior of the pot body, the side wall of the pipeline is provided with a mixed liquid inlet, and a second partition is arranged inside the pipeline, one end of the second partition is connected to the side wall of the pipeline, and the other end of the second partition is One end extends to the mixed liquid inlet, so that the first channel and the second channel are formed in the pipeline; the first end of the first channel is connected to the first chamber, the second end of the first channel is closed, and the first end of the second channel is connected to The second chamber and the second end of the second channel are used to connect with the water pump. The expansion kettle of the present application also has the function of gas-liquid separation, so there is no need to install a special liquid-gas separator in the cooling system, which is conducive to reducing the number of parts and total weight in the cooling system, reducing the cost and benefiting the automobile. lightweight.

The invention provides a frame assembly based on laser selective melting forming technology, comprising: a frame (1), a filter device (2), and a throttling orifice plate (3); the frame (1) includes an internal flow channel; the filter The device (2) is arranged at the beginning of the internal flow channel of the frame (1); the throttling orifice plate (3) is arranged at the end of the internal flow channel of the frame (1). The invention can realize the supply and flow adjustment of the working medium of multiple engines at the same time; reduce the number of working medium conveying pipelines in the final assembly of the attitude control power system, greatly reduce the number of welds in the system, and improve the reliability of the system seal; the system The reduction of pipelines is conducive to improving the anti-vibration ability of the system structure; it reduces the production labor during the integrated assembly of system products, and improves the efficiency of mass production of the attitude control power system.

The invention discloses a segmental testing system for mining damage of surrounding rock, which belongs to the technical field of measuring the damage range of rock mass on the roof and floor of mines. It solves the problems of one-time plugging and multi-segment measurement, plugging and leakage measurement integration and internal water pressure conversion measurement of mine roof and floor rock mass observation equipment. It includes a blocking system, a guiding system, a supply propulsion system and a pressure conversion system. The blocking system includes a first blocking unit, a second blocking unit and a third blocking unit, and each blocking unit includes a leaking pipe and a connection At the tubular joints at both ends of the leaking pipe, a connecting pipe is arranged between the adjacent blocking units, and the two ends of the connecting pipe are respectively connected to the tubular joints of the adjacent sealing units, and the outer periphery of the leaking pipe between the two tubular joints A blocking capsule is provided, and a certain blocking space is formed between the blocking capsule and the leaking pipe. The test system can simultaneously realize the multi-stage measurement of plugging, the integration of plugging and leak detection, and the pressure conversion from plugging high-pressure water sources to observing low-pressure water sources.

The invention discloses a water conservancy irrigation device, comprising two support columns, the top of the support columns is fixedly connected with a support plate 1, the support plate 1 is connected with the support plate 2 through a connecting bolt 1, the support plate The top of the plate two is fixedly connected with a fixed plate, and movable pipes are movably connected between the fixed plates, and a plurality of water outlets are connected to the side walls of the movable pipes, and one end of the movable pipes is connected with a water pipe through a connecting mechanism, so that The end of the water pipe far away from the movable pipe is connected to the water pump, and the end of the movable pipe far away from the water pipe is connected to the movable shaft through a synchronous mechanism, the movable shaft is movably connected to the support column, and the outer surface of the movable shaft is fixed A gear is connected, one side of the gear is meshed with a tooth plate, and the side of the tooth plate away from the gear is fixedly connected with a connection block 1, and the bottom of the connection block 1 is connected with the hydraulic telescopic rod. Beneficial effect: watering is carried out by means of spraying, and the irrigation water rate is improved.

The invention discloses a synchronous valve for balanced discharge of satellite dual-component propellant parallel storage tanks and its application. The synchronous valve includes a valve body. The left and right ends of the valve body are respectively connected to an inlet joint A and an inlet joint B. A main valve is arranged inside the valve body. The left and right ends of the main spool are respectively provided with the main spool spring A and the main spool spring B, the constant pressure difference valve assembly is provided under the main spool, and the constant pressure difference valve assembly is provided at one end of the constant pressure difference valve assembly. Spring, the lower end of the valve body is connected to the outlet joint; the application is to use the synchronous valve in the dual-component propellant parallel storage tank equalization discharge system of the liquid attitude and orbit control power system. The invention not only can adapt to various flow conditions, but also has the advantages of simplifying the power system and no matching and debugging of the system, and is especially suitable for a balanced discharge system of propellant parallel storage tanks.