6results about How to "Reduce residual" patented technology

A fruit and vegetable food preservation device based on a composite polysaccharide film, relating to the field of fruit and vegetable food processing technology, includes a first inclined plate (1) and a second inclined plate (6) disposed at the lower inclined end of the first inclined plate (1). The first inclined plate (1) and the second inclined plate (6) are both fixedly connected to the base plate (7) by support columns. A U-shaped frame plate (601), a dispensing mechanism (4) and a heat sealing mechanism (5) are arranged sequentially above the second inclined plate (6) from the upper inclined end to the lower inclined end. The bottom surfaces of both ends of the U-shaped frame plate (601) are fixedly connected to the second inclined plate (6). The dispensing mechanism (4) includes an L-shaped plate (401), a partition plate (402) and a first heating strip (403). Multiple partition plates (402) are arranged in a horizontal array on one side of the opening of the L-shaped plate (401). The upper ends of multiple partition plates (402) are fixedly connected to the same crossbar (4022). The device can quickly and efficiently encapsulate composite polysaccharide films in fruit and vegetable processing, and can also quickly wipe and dehydrate fruits and vegetables after washing, ensuring thorough cleaning and effectively improving the freshness of fruit and vegetable products.

The utility model relates to the technical field of glass substrates, and aims to solve the problem that in the prior art, when a plastic film is used for winding a glass substrate and a packaging frame of the glass substrate, static electricity of the film and static electricity generated in the winding process are conducted to the packaging frame of the glass substrate and the glass substrate, and the downstream panel manufacturing process is affected. The glass substrate packaging and static electricity removing device comprises a thin film winding machine, a winding film winding drum is installed on the thin film winding machine, a winding film is wound on the winding film winding drum, an ion wind bar is installed at the winding transmission traction tail end of the winding film and used for removing static electricity, and the winding film subjected to static electricity removing is stretched to a glass substrate packaging frame. The winding device is used for winding a glass substrate and a glass substrate packaging frame; the ion wind bar can eliminate static electricity carried by the wrapping film and static electricity generated by stretching and friction in the packaging process, attachment and remaining of the static electricity on the glass substrate and the glass substrate packaging frame are reduced to the maximum degree, and the downstream panel manufacturing procedure is prevented from being affected.

This application discloses a method and apparatus for predicting and controlling dissolved gas precipitation at the end of brine discharge in a salt cavern gas storage facility, comprising the following steps: acquiring basic data required for prediction and control at the end of brine discharge; establishing or calling a table of equilibrium solubility data of the stored gas in the brine based on the composition, pressure, temperature, and salinity of the stored gas; determining the initial dissolved gas state of the brine at the interface, using the boundary condition that the brine and stored gas reach dissolution equilibrium at the gas-liquid interface of the salt cavern; establishing a coupled calculation model of dissolved gas precipitation and wellbore gas-liquid two-phase flow during the brine return process to predict the gas phase volume fraction of the fluid returning from the wellhead; generating a safe operating envelope diagram of back pressure-discharge rate at different gas-liquid interface positions, using the wellhead back pressure as the main control variable and the brine discharge flow rate as the auxiliary correction variable, with the wellhead back pressure as the main control variable and the brine discharge flow rate as the auxiliary correction variable; and outputting a suggested point for terminating brine discharge when any wellhead safety constraint cannot be met.

This utility model provides an organic fertilizer preparation device for vegetable planting, including a mixing box. The mixing box has an inlet on one side of its top and two outlets at its bottom. An inner wall of each outlet has a receiving groove containing a sealing component that cooperates with the outlet. A mixing motor is fixedly connected to the top center of the mixing box. This utility model has the following advantages: Through the design of the adjustment mechanism, when mixing the organic fertilizer, the rubber scraper on the side of the side rod can be driven away from the inner wall of the mixing box, avoiding repeated friction and wear between the rubber scraper and the inner wall of the mixing box during mixing. When it is necessary to scrape the organic fertilizer off the inner wall of the mixing box, the rubber scraper on the side of the side rod can be driven to abut against the inner wall of the mixing box, thus facilitating the scraping of the organic fertilizer off the inner wall of the mixing box when the side rod rotates.

The utility model relates to a kind of multi-way valve structure suitable for trace liquid medicine delivery and its trace liquid medicine delivery system, including valve body and valve core. Valve body is provided with several circumferential interfaces, valve core is rotatably installed in valve body, valve core is provided with selection interface, by rotating valve core, the communication or cut-off of the central interface of valve body and circumferential interface is realized, control liquid medicine delivery passage. The inner diameter of all interfaces of multi-way valve is adapted to trace liquid medicine delivery pipeline, to avoid the problem of reducing diameter. The utility model also provides a kind of trace liquid medicine delivery system, including above-mentioned multi-way valve structure and related container and power execution device.

The application discloses a nonlinear anti-disturbance method of a proportional valve-controlled motor system considering valve dynamic compensation, effectively combines an interference suppression method and an interference estimation compensation method, inherits the respective advantages of the two methods while avoiding the respective shortcomings, considers valve dynamics and approximates the valve dynamics as a first-order inertia link, and makes the nonlinear model more accurate. Compared with a traditional ESO method, the use of a nonlinear robust controller reduces the observation burden of the ESO and further reduces the observer residual error. Compared with a traditional nonlinear robust control method, the use of the ESO makes the nonlinear robust gain only related to the first-order derivative of the state observation error, and weakens the original severe condition. The tracking performance of the controller is better than that of the nonlinear robust controller and the ESO under the same condition.