6 results about "Specific volume" patented technology

The application discloses a horizontal two-stage screw compressor with efficient inter-stage cooling structure and relates to the field of screw compressors.The horizontal two-stage screw compressor with efficient inter-stage cooling structure comprises a first-stage host assembly, a second-stage host assembly and an inter-stage connecting assembly.The horizontal two-stage screw compressor with efficient inter-stage cooling structure has the beneficial effects that the inter-stage connecting cavity can efficiently cool the inter-stage compressed gas through the built-in cooling core structure, the second-stage compression inlet gas temperature is reduced, the second-stage compression power consumption is reduced, the overall compression efficiency is improved, the specific volume of the high-temperature gas is reduced after cooling, the second-stage compression inlet gas volume is increased, the actual exhaust volume of the host is improved, the first-stage and second-stage host assemblies are provided with gear transmission structures to realize the stepwise speed change of the double-gear transmission structure, the differentiated requirements of pressure, flow and rotating speed of the two-stage compression are adapted, the unit vibration and noise are reduced, the operation stability is improved, the gas compression power consumption is reduced, and the overall working efficiency is improved.

The invention relates to a profile control agent for a high-salinity-resistant deep oil reservoir and a preparation method of the profile control agent, and belongs to the technical field of oil exploitation. The profile control agent is composed of a pretreatment slug, a front slug I, an oil displacement slug II and a reinforced slug III according to a specific volume ratio, each slug adopts adaptive raw materials such as solid particles with composite particle sizes and a composite protective agent, and functional synergy is realized by optimizing a formula and a preparation process. The plugging agent can tolerate the degree of mineralization below 300000mg / L and the temperature of 40-120 DEG C, can realize deep accurate plugging and efficient oil displacement of an oil reservoir, and remarkably improves the plugging rate and the scouring-resistant stability. The profile control agent has the advantages of easily available raw materials, simple preparation and strong construction adaptability, and can effectively improve the oil reservoir development effect in the extreme environment and increase the recovery rate of remaining oil.

This invention relates to a compressor intake silencing device, belonging to the technical field of compressor silencing accessories. It includes: a silencing box for housing the compressor, the silencing box having independently distributed airflow buffer chambers and resonance silencing chambers internally, and an intake channel connecting the airflow buffer chambers and resonance silencing chambers; the compressor is placed inside the resonance silencing chamber; the side wall of the silencing box corresponding to the airflow buffer chamber has multiple intake holes arranged in a honeycomb pattern at intervals, and the top of the silencing box corresponding to the resonance silencing chamber has an outlet hole. This invention utilizes the honeycomb-shaped small-diameter intake holes to enhance the throttling pressure drop effect, thereby increasing the intake air velocity and reducing the gas specific volume, thus improving the compressor's unit volume cooling capacity; simultaneously, the front and rear separation of the airflow buffer chamber and the resonance silencing chamber effectively buffers high-speed pulsating airflow and suppresses turbulence and regenerated noise, achieving the dual benefits of rapid intake and efficient silencing.

The invention provides a grain and oil production process control method, which comprises the following steps: acquiring the temperature, depth, specific volume and flow of oil in each storage tank in real time, releasing pressure if the specific volume exceeds the upper limit, and supplementing pressure and outputting oil at constant pressure if the specific volume is lower than the lower limit; if the oil depth is insufficient, the oil is supplemented to the normal depth, and automatic steady-state control over the oil product in the storage tank is achieved. Automatic and refined management of the oil state in the grain and oil production process can be achieved, the production efficiency and the product quality are improved, and the safety and stability of the production process are enhanced.

The application discloses a device and a use method for assisting droplet generation, wherein one way of the output end of a gas storage unit is connected to a pressure applying device, and the other way is connected to external atmosphere, gas is delivered into a droplet generation unit through the pressure applying device, and an airtight connection can be formed between the pressure applying device and the droplet generation unit, pressure construction and droplet preparation process can realize full-process automation, in the process of use, firstly, the gas pressure of the gas storage unit is increased to a preset value greater than a target value, then the pressure increasing of the gas storage unit is stopped, then the gas storage unit is gradually exhausted to the atmosphere through control, so that the gas pressure in the gas storage unit gradually decreases, the influence of the rapid flow of gas on the accuracy of real-time gas pressure detection in the pressure feedback control process can be effectively avoided, the accuracy and stability of providing the positive pressure of the target value of the gas pressure to the droplet generation unit are improved, and the reliability of the droplet generation unit in completing the droplet preparation of a specific volume of dispersed phase reagent at a specific time under a specific pressure is ensured.

This invention discloses a method for calculating the heat absorption non-uniformity coefficient of a boiler's high-temperature heating surface based on monitoring data. It relates to the field of heat absorption non-uniformity coefficient calculation and solves the problem of inaccurate calculation of the heat absorption non-uniformity coefficient of a boiler's high-temperature heating surface. The method includes acquiring real-time monitoring data of the boiler, calculating steam parameters at the inlet and outlet of the same tube coil in different tube panels based on the real-time monitoring data, calculating the mass flow rate of steam at the inlet of the distribution header and the outlet of the collection header, calculating the enthalpy increase, enthalpy increase deviation, and average specific volume of steam in the same tube coil in different tube panels based on the steam enthalpy and specific volume at the inlet and outlet, calculating the static pressure difference at the inlet and outlet of the same tube coil in different tube panels, calculating the steam flow rate deviation in the same tube coil in different tube panels, and calculating the heat absorption non-uniformity coefficient of the same tube coil in different tube panels based on the steam flow rate deviation and the steam enthalpy increase deviation. This invention achieves accurate calculation of the heat absorption non-uniformity coefficient of a boiler's high-temperature heating surface.