5results about How to "Meet pressure needs" patented technology

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 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 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.