Continuous nitrocotton dewatering process and apparatus

The present invention is continuous nitrocotton dewatering process and apparatus. The continuous nitrocotton dewatering process includes the technological steps of: feeding nitrocotton slurry into dewatering tank; regulating the density of nitrocotton slurry; pumping nitrocotton slurry with metering pump into centrifugal machine to dewatering; soaking with alcohol the dewatered nitrocotton with water content less than 29%; regulating the density of nitrocotton in soaking alcohol tank; pumping alcohol soaked nitrocotton with metering pump into water displacing centrifugal machine for replacingwater with alcohol. In the dewatering and water-replacing process, double-stage piston material-pushing centrifugal machine and Neihm pump are used, and during displacing water nitrogen of 0.2-0.3 MPa pressure is introduced into mechanical sealing.

Electric vehicle ordered charging method for residential area

The invention provides an electric vehicle ordered charging method for a residential quarter. The method comprises the steps that vehicle owner side data of an electric vehicle and charging pile side data and power grid side data of the residential quarter are acquired; constructing a charging load model according to the vehicle owner side data and the charging pile side data, and generating a flexible charging target function in combination with the power grid side data; and obtaining a charging demand of the electric vehicle, and performing flexible charging control on the electric vehicle in combination with the flexible charging target function. According to the method, the load conditions of the vehicle owner side and the charging pile side are fully considered, the load conditions of the transformer capacity and the like of the power grid side and the influence of the peak-valley time-of-use electricity price on the charging cost are comprehensively considered on the basis of the ...

Physical simulation measuring device for dielectric logging detector

The invention discloses a physical simulation measurement device for a dielectric logging detector. The physical simulation measurement device comprises a main box body, a U-shaped pipe assembly and a partition plate, a plurality of partition plates are arranged in the main box body to form a plurality of independent cavities, and the independent cavities are used for placing test media; the U-shaped pipe assembly is arranged in the main box body, the U-shaped pipe assembly penetrates through the independent cavities, the U-shaped pipe assembly is in a semi-opening shape, and the U-shaped pipe assembly is placed in the main box body with the opening facing upwards; the U-shaped pipe assembly comprises an inner pipe, an outer pipe and a check block. The inner pipe is arranged in the outer pipe, a gap is formed between the inner pipe and the outer pipe and used for injecting a test medium, and the check block is arranged at the end of the inner pipe and the end of the outer pipe for sealing ...

Half-duplex LoRa network reliable message transmitting and receiving method

The invention discloses a reliable message transmitting and receiving method for a half-duplex LoRa network, which comprises the following steps: network nodes work in a half-duplex mode, relay nodes are arranged in the network, the nodes are in an equal state, no gateway participates in message transmitting and receiving, a transmitting end sets a priority value P according to a message type, and P is a positive integer; and then detecting the network in a unit time slot, and sending a message when the network is idle for continuous P times. The method also comprises LoRa network flow control, limiting the number of relay nodes and common nodes in the LoRa network, and limiting the number of message forwarding times. The reliable message receiving and transmitting method for the half-duplex LoRa network has the advantages of being good in real-time performance, high in reliability and simple in network structure.

Method and system for monitoring resistance and jamming of logging instrument based on reinforcement learning

The invention discloses a method and a system for monitoring resistance and jamming of a logging instrument based on reinforcement learning, and belongs to the technical field of petroleum logging engineering. After data is preprocessed, a training set and a test set are selected from a large amount of logging data. And then building a reinforcement learning simulation environment by using the selected training set, and building a reinforcement learning network structure according to the environment. And training the reinforcement learning network model by using the training set, modifying a reward and punishment strategy for a training curve and a training score in the training process, and further optimizing the network model. And testing by using the optimal model. Through reinforcement learning, the accuracy of judging whether the instrument is blocked or blocked in the logging process is improved, a better instrument operation state judgment standard is provided, errors possibly caused ...

A portable gun platform for electric automobile charges

The utility model discloses a portable gun platform for electric automobile charges, characteristics are including moving platform and control system, and moving platform is last to be provided with rifle line take -up device and to rotate drive arrangement, and rifle line take -up device goes up the fixed gun platform that is used for hanging the rifle that charges that is provided with, and moving platform's bottom is provided with moving mechanism, the advantage is whole process staff's rapid operation, and has avoided the randomly arranged of rifle line, has also avoided the rifle line to be rolled and damage by the vehicle, has eliminated the potential safety hazard, in addition, owing to the rifle that charges rotates along with the reel, has avoided the in -process that the rifle line was being convoluteed to take place the distortion.

Automatic continuous sealing machine

The invention relates to an automatic continuous sealing machine which comprises a motor (2), a gear (21) and a shell, wherein the motor (2), the gear (21) and a clutch (1) are installed on a left side plate (3); two ends of a pair of paper feed rotating shafts (4,5) and two ends of a pair of paper outlet rotating shafts (6,7) are respectively fixed to the left side plate (3) and a right side plate (14); an upper paper deflector (23) and a lower paper deflector (24) are respectively arranged between the paper feed rotating shafts (4,5) and the paper outlet rotating shafts (6,7); a paper pickup wheel (8) is sleeved on each of the paper feed and paper outlet rotating shafts (4,5,6,7); a shift block (12), a sealing plate cylinder (11) and an inkpad roller (22) are sleeved on the right section of the paper outlet rotating shaft (7); a spring (13) is arranged at the right end of the shift block (12); an electromagnet (16) and a connecting rod (15) are arranged at the left end of the shift block ...

Continuous nitrocotton dewatering process and apparatus

Cylinder axis height measuring instrument and measuring method thereof

The invention discloses a cylinder axis height measuring instrument and a measuring method thereof.The cylinder axis height measuring instrument is composed of a pointer, a rotating shaft, a sliding block, a locking screw and a graduated scale, the pointer is provided with a two-fork structure, a rotating shaft hole and indication marks, the pointer is connected to the sliding block with scale marks through the rotating shaft, and the sliding block can slide on the graduated scale with height scales; the sliding block can be locked on the graduated scale through the locking screw, and the graduated scale is installed on the base. When the device is used, the locking screw is loosened, the sliding block is moved, the two-fork structure of the pointer is tightly attached to the surface of the cylinder, when the indication mark of the pointer coincides with the scale mark of the sliding block, the locking screw is tightened, the axis of the cylinder and the axis of the rotating shaft are located ...