13results about How to "Meet pressure needs" patented technology

The invention discloses a breeding tank and a closed fishery breeding system, and relates to the technical field of fishery breeding, the breeding tank comprises a tank body, a feeding assembly, an air delivery pipe and an oxygen supply assembly, a breeding cavity is formed in the tank body, the tank body is provided with a water inlet pipe communicated with the breeding cavity, and the feeding assembly is arranged in the tank body and used for feeding food into the breeding cavity; the air conveying pipe is arranged in the tank body and communicated with the breeding cavity and used for conveying air into the breeding cavity so as to adjust the pressure in the breeding cavity, and the oxygen supply assembly is arranged in the tank body and used for supplying oxygen into the breeding cavity. According to the breeding tank and the closed fishery breeding system, the environment pressure in the breeding cavity of the tank body can be adjusted, then the pressure requirements of aquatic products growing under different environment pressures can be met, the influence of the external environment on the aquatic products can be reduced, in addition, the oxygen dissolving efficiency is higher, the oxygen dissolving supplementing frequency is smaller, and the breeding efficiency is improved. And the energy consumption is lower.

The application discloses a closed fishery circulating aquaculture system, which comprises an aquaculture device, a water circulation pipeline, a biochemical device, an oxygen supply device and a gas supply device. The aquaculture device comprises an aquaculture tank and a feeding assembly. The aquaculture tank is provided with an aquaculture cavity. The aquaculture tank is provided with a first water inlet pipe and a first water outlet pipe. The feeding assembly is arranged on the aquaculture tank. The water circulation pipeline is arranged between the first water inlet pipe and the first water outlet pipe. The biochemical device comprises a biochemical tank. The biochemical tank is provided with a biochemical cavity. The biochemical cavity is communicated with the water circulation pipeline. The biochemical cavity is used for accommodating nitrifying bacteria. The oxygen supply device is connected with the aquaculture tank and the biochemical tank. The gas supply device is provided with a gas conveying pipe between the aquaculture tank. The closed fishery circulating aquaculture system can not only meet the pressure requirement of aquatic products growing in different environmental pressures, but also make the water dissolving oxygen efficiency in the aquaculture cavity higher and be more beneficial to the growth of the aquatic products. In addition, the biochemical device is more beneficial to the growth of the photophobic and aerobic nitrifying bacteria.

The invention discloses a flow mixer for a gas turbine power plant and a natural gas pressure regulating method. The flow mixer comprises a shell unit, and the shell unit comprises a shell assembly, a gas inlet pipe assembly arranged on the shell assembly, a gas outlet assembly arranged on the shell assembly and a fixing piece arranged in the shell assembly. The mounting unit comprises a first fixing shaft assembly arranged on the fixing piece, a connecting assembly arranged on the first fixing shaft assembly and a second fixing shaft assembly arranged on the connecting assembly. The mixing unit comprises a sleeve assembly rotationally arranged on the fixed shaft assembly I, a stirring assembly I arranged on the sleeve assembly, a stirring assembly II arranged on the sleeve assembly, a transmission assembly rotationally arranged on the connecting assembly and a stirring assembly III rotationally arranged. According to the flow mixer for the gas turbine power plant and the natural gas pressure regulating method, the flow speed of gas is changed through the arrangement of the shell assembly; and meanwhile, the speed difference between the airflow at the mixing section I and the airflow at the accelerating section is more obvious, so that the double air sources can be quickly and uniformly mixed.

The invention relates to the technical field of bionic skeletal muscle driver testing, in particular to a hydraulic skeletal muscle cooperative driving mechanical arm and a testing device and a control method thereof, comprising: a supporting frame, a hydraulic mechanical arm, an inertial sensor, a driving unit and a computer unit. The invention uses a lithium battery in the driving unit to supply power to a pump, a control module and a valve, and a control panel controls the switching of three valves to complete power outputs of different combinations, controls the contraction movement of three skeletal muscles of the hydraulic mechanical arm, thereby completing the bending and twisting posture of the arm. At the same time, the inertial sensor transmits a signal to the computer unit to complete the information collection of the hydraulic skeletal muscle cooperative driving of the hydraulic mechanical arm, and compares and analyzes the motion parameters of a human arm to complete the bionic design of a human arm. The invention uses liquid as a driving medium, drives the bionic skeletal muscle through a combination of low-pressure liquids, simulates the motion of an arm joint, and tests its motion performance.

The adjustable bidirectional adaptive throttle valve at least comprises a first valve body, a second valve body, a first valve seat, a first valve needle, a first valve needle spring, a first adjusting spring, a first adjusting limit block, a second valve seat, a second valve needle, a second valve needle spring, a second adjusting spring and a second adjusting limit block, the pre-tightening force of the corresponding spring is adjusted by the first adjusting limit block and the second adjusting limit block to control the force opening state of the corresponding valve needle, the first valve needle and the second valve needle can move axially in the valve body under the action of force to reduce or enlarge the flow area of the valve port. The adjustable bidirectional adaptive throttle valve is used to realize adjustable variable flow throttling, the first valve needle and the second valve needle have small oscillation under the damping effect of the corresponding valve needle spring and adjusting spring, the bidirectional throttling is high in reliability, and the control problem of the throttling mechanism is simplified and automated.

The application discloses a culture tank and a closed fishery culture system, and relates to the technical field of fishery culture. The culture tank comprises a tank body, a feeding assembly, a gas conveying pipe and an oxygen supply assembly. A culture cavity is formed in the tank body. The tank body is provided with a water inlet pipe connected with the culture cavity. The feeding assembly is arranged on the tank body and used for feeding the culture cavity. The gas conveying pipe is arranged on the tank body and connected with the culture cavity, and is used for conveying gas to the culture cavity to adjust the pressure in the culture cavity. The oxygen supply assembly is arranged on the tank body and used for supplying oxygen to the culture cavity. The culture tank and the closed fishery culture system can not only adjust the environmental pressure in the culture cavity of the tank body, thereby meeting the pressure requirements of aquatic products growing in different environmental pressures, but also can reduce the influence of external environment on the aquatic products. In addition, the oxygen dissolving efficiency is higher, the oxygen dissolving needs less supplement, and the energy consumption is lower.

The temperature and pressure reducer comprises a valve body and a conveying pipeline which are arranged, the side end of the valve body is connected with the conveying pipeline, a maintenance part is arranged at the bottom of the valve body, a driving part is installed in the valve body, the lower portion of the driving part is connected with the valve element, the valve element is located in the valve body, and the valve element is arranged in the valve body. Two pairs of through holes are symmetrically formed in the valve element, the diameters of the two pairs of through holes are different, and a pressure gauge is installed on the valve body. According to the temperature and pressure reducer with the porous valve element, the pressure of a medium is accurately adjusted by controlling the rotating angle and speed of the driving piece, the pressure requirements under different working conditions are met, meanwhile, energy loss and equipment abrasion possibly caused by a traditional pressure reduction mode are reduced, two pairs of through holes with different diameters are symmetrically formed in the valve element, and the pressure reduction effect is good. The pressure reduction adjusting range and precision are enhanced, the device can adapt to changes of pressure of various media, the applicability and universality of the device are improved, and the problem that production and maintenance cost is increased due to the fact that an auxiliary structure is used is solved.

The present invention discloses a hybrid transmission hydraulic system, including a high-pressure oil circuit, a low-pressure oil circuit, a first oil circuit and a second oil circuit, one end of the high-pressure oil circuit is connected to the oil tank, the other end of the high-pressure oil circuit is respectively connected to one end of the first oil circuit and one end of the second oil circuit, the other end of the first oil circuit is connected to the clutch oil cylinder, the other end of the second oil circuit is connected to the low-pressure oil circuit, one end of the low-pressure oil circuit is connected to the oil tank, and the other end is used to connect various heating parts of the motor, a high-pressure oil pump is arranged on the high-pressure oil circuit, a low-pressure oil pump is arranged on the low-pressure oil circuit, a clutch solenoid valve is arranged on the first oil circuit, and a first overflow valve as a system valve is arranged on the second oil circuit. The hybrid transmission hydraulic system aims to solve the technical problems in the prior art that the hybrid transmission hydraulic system is difficult to meet the pressure requirements of the wet clutch and the flow requirements of the motor heat dissipation under various working conditions and has large hydraulic loss.

The invention discloses a closed fishery circulating breeding system which comprises a breeding device, a water circulation pipeline, a biochemical device, an oxygen supply device and an air supply device, the breeding device comprises a breeding tank and a feeding assembly, the breeding tank forms a breeding cavity, the breeding tank is provided with a first water inlet pipe and a first water outlet pipe, and the feeding assembly is arranged on the breeding tank; the water circulation pipeline is arranged between the first water inlet pipe and the first water outlet pipe, the biochemical device comprises a biochemical tank body, a biochemical cavity is formed in the biochemical tank body and communicated with the water circulation pipeline, the biochemical cavity is used for containing nitrifying bacteria, the oxygen supply device is connected to the breeding tank body and the biochemical tank body, and an air delivery pipe is arranged between the air supply device and the breeding tank body. According to the closed fishery circulating breeding system, the pressure requirements of aquatic products growing under different environmental pressures can be met, the oxygen dissolving efficiency of water in the breeding cavity is higher, growth of the aquatic products is better facilitated, and in addition, the biochemical device is more beneficial to growth of photophobic and aerobic nitrifying bacteria.

The utility model discloses a hydraulic cylinder and servo electric cylinder mixed multi-shaft CNC press which structurally comprises a rack, an upper template assembly and a lower template assembly are sequentially arranged on the rack from top to bottom, the hydraulic cylinder is arranged at the top of the rack, a piston rod of the hydraulic cylinder is provided with a movable cross beam, the movable cross beam is connected with the upper template assembly, and the lower template assembly is connected with the servo electric cylinder. An upper servo electric cylinder for pushing the upper die plate assembly to move is arranged on the movable cross beam, a workbench is arranged on the lower portion of the machine frame, the lower die plate assembly is installed on the upper plane of the workbench, and a lower servo electric cylinder for pushing the lower die plate assembly to move is arranged on the workbench. The characteristics of complex control, low efficiency and high fault rate of a multi-shaft CNC (computer numerical control) controlled hydraulic press are successfully avoided, and the defect of small tonnage of a pure electric servo press is effectively overcome.

The utility model discloses a shock absorber reverse force detection and total length measurement integrated device which comprises a base. A mounting frame is arranged on the base, and a supporting plate and a workbench are arranged on the mounting frame; a workpiece clamping device and a detection mechanism are arranged on the workbench, and the workpiece clamping device is used for clamping a piston rod of the shock absorber placed on the supporting plate; the detection mechanism comprises a driving device A, a detection assembly and a mounting plate; the driving device A is fixed on the mounting plate and is used for driving the detection assembly to lift; the detection assembly comprises a bracket, and a displacement sensor and a pressure sensor which are arranged on the bracket; a PLC control box is arranged on the base, and the A driving device, the displacement sensor and the pressure sensor are electrically connected with the PLC control box. According to the shock absorber reverse force detection and total length measurement integrated device, through a specific structure, two work of shock absorber reverse force detection and shock absorber total length measurement can be completed at the same time, and the shock absorber reverse force detection and total length measurement integrated device has the advantages of being simple in structure and easy to operate.

The invention discloses an assembling method and a using method of an anti-falling fastening device, and belongs to the technical field of anti-falling fastening. An assembling step: selecting a limiting cap, wherein the initial state of the closing end side of the limiting cap is a cylindrical structure; a limiting cap is installed on the positioning tool, and a spring and a connecting bolt are installed in a cap cylinder part; the assembled limiting cap is placed on a pressing machine, a closing tool is placed on the cylindrical structure, the pressing machine acts on the closing tool, the cylindrical structure is closed inwards under the cooperation of the closing tool and the pressing machine to form a through hole, and closing forming of the closing end of the limiting cap is achieved; and the pressing machine is reset, the anti-falling fastening device is taken down, the opening is closed, the positioning tool is located, and the positioning tool is separated from the anti-falling fastening device. The limiting cap is subjected to closing-up operation, so that the closing-up deformation and closing-up quality of the limiting cap can both meet the requirements, high-quality assembly of the anti-falling fastening device is achieved, the anti-falling fastening device can be kept in a state of being connected with single-machine equipment, and the single-machine equipment can be maintained and installed conveniently.

The invention relates to the technical field of low-light image intensifiers and discloses vacuum exhaust equipment for low-light image intensifier production, which solves the problem that the process of fixing and aligning a cathode ray tube is generally achieved manually, the operation is relatively cumbersome, and the labor intensity of the staff is relatively high. The invention comprises a mounting frame, a driving component is installed inside the mounting frame, a vacuum exhaust component is installed at one end of the driving component, a positioning component is installed at the other end of the driving component, a cathode ray tube is placed inside the positioning component, and the positioning component is connected to the mounting frame; the invention, through the coordinated use of the positioning component, the vacuum exhaust component and the driving component, can simultaneously drive the positioning component and the vacuum exhaust component to move through the driving component, fix the cathode ray tube through the positioning component, and then make the vacuum exhaust component close to the cathode ray tube, so that the process of fixing and aligning the cathode ray tube can be automatically completed, reducing the labor intensity of the staff.