52results about How to "Reduce decrease" patented technology

The utility model discloses a kind of copper-clad plate cleaning equipment, its structure includes cleaning tank and rotating roller, copper-clad plate is placed into the inside of cleaning tank by import and export, in the first motor drives transmission rod so that in after driving gear and transmission gear lower rotating roller rotation pushes copper-clad plate to move, in moving to the bottom nozzle and top nozzle set up, water pump works so that spraying treatment is carried out to the upper and lower two end surfaces of copper-clad plate, and in the rotating of cleaning brush roller set up up and down, the surface of copper-clad plate is cleaned, to clean the surface of copper-clad plate, the upper and lower two end surfaces are cleaned, so that cleaning efficiency is higher, avoid the case that single face cleaning efficiency is low, and under the action of bottom adsorption roller and top adsorption roller, liquid on the surface of copper-clad plate is adsorbed, reduce the existence of surface liquid, so that subsequent surface drying efficiency is faster.

The application provides a sound insulation and heat preservation integrated prefabricated laminated board and a laminated board system, and belongs to the field of fabricated buildings. The laminated board comprises a prefabricated part, a heat insulation and sound insulation layer and a laminated layer. The prefabricated part comprises a prefabricated bottom plate and a connecting piece, the connecting piece is arranged on the prefabricated bottom plate, the heat insulation and sound insulation layer is continuously formed on the prefabricated bottom plate, the laminated layer is formed on the heat insulation and sound insulation layer, the connecting piece penetrates through the heat insulation and sound insulation layer, the bottom of the connecting piece is connected to the prefabricated bottom plate, the top of the connecting piece extends into the laminated layer, a first protective layer is formed between the top of the connecting piece and the top surface of the laminated layer, and a second protective layer is formed between the bottom of the connecting piece and the bottom surface of the prefabricated bottom plate. The heat insulation and sound insulation layer is arranged in the middle of the laminated board, a sandwich form is formed, a complete and continuous heat insulation and sound insulation layer is formed in the laminated board, and floor surface layer cracking caused by on-site laying of the heat insulation and sound insulation layer can be effectively avoided.

The application relates to the technical field of hydrogeological monitoring, in particular to a hydrogeological dynamic monitoring and analysis system and method based on big data; specifically, hydrogeological data is collected in real time, data denoising, space-time calibration and error correction are carried out in combination with edge computing, noise and drift error are eliminated by adopting variational mode decomposition, geological model constraint and wavelet transform, and the storage and transmission efficiency is optimized by increment encoding and Huffman encoding, and a quadratic form check code is generated to ensure data reliability; a space-time deep learning model and a self-attention mechanism are fused to predict a hydrological evolution trend, adaptive anomaly detection is realized by combining DBSCAN clustering and prediction error analysis; water resource allocation strategies are optimized through reinforcement learning, risk levels are evaluated in layers, and management schemes are generated, and finally, monitoring data, abnormal scores and decision results can be visually displayed. The application integrates multi-source data fusion, space-time modeling and intelligent decision-making, and improves hydrological monitoring precision and response efficiency.

The utility model discloses a coal mine gas extraction double-injection hole sealing device which comprises a first main bag body, a second main bag body and a first pipeline, and the first pipeline provides slurry for the first main bag body and the second main bag body to enable the first main bag body and the second main bag body to expand and make contact with the hole wall. The device further comprises a first auxiliary bag body, a second auxiliary bag body and a second pipeline, the first auxiliary bag body is attached to the first main bag body and is close to the hole opening, and the second auxiliary bag body is attached to the second main bag body and is close to the hole bottom. The second pipeline provides slurry for the first auxiliary bag body and the second auxiliary bag body so that the first auxiliary bag body and the second auxiliary bag body can expand to make contact with the hole wall, and a first explosion valve and an exhaust part are arranged on the second pipeline and located at the plugging section. And one end of the second pipeline is respectively connected with the second grouting pipe, the exhaust pipe and the slurry discharge pipe in a switching manner. According to the utility model, secondary plugging can be carried out on the plugging section of the drill hole, the problems of plugging effect reduction and air leakage caused by the influence of mining are avoided, gas extraction is guaranteed, and the compressive strength of solidified slurry can be improved.

The present application relates to a kind of IGBT side frame dispensing and dispensing detection integrated process whole line, for dispensing and dispensing detection integrated in one-time completion process equipment;Five links of side frame feeding, side frame coding, side frame dispensing, dispensing detection, finished product unloading are connected by conveying line in series, and three-axis module is responsible for carrying to each function station to realize closed loop operation.Due to the fusion of dispensing and dispensing detection process, the new dispensing process can effectively reduce the process of manual participation, greatly improve the accuracy of dispensing test, and greatly reduce the error rate.At the same time, each mechanism of the equipment is relatively independent, and does not interfere with and affect each other, easy to maintain later, and the overall maintenance cost is relatively low;The new dispensing and dispensing detection process whole line reduces the number of original process equipment operators, and the once feeding equipment can work for more than 1 hour, reducing the labor cost of enterprise equipment;Compared with the existing dispensing production line mode, the new dispensing and dispensing detection process integrated whole line can reduce the floor area.

The present application relates to oil and gas storage and transportation application field, specifically relates to a kind of centrifugal pump segmented filling pump device and filling pump method;Including centrifugal pump, filling pump valve, pump outlet cut-off valve, pump inlet valve, subsea valve and pump inlet intermediate check valve;The centrifugal pump one end is connected pump outlet pipe, the other end is connected pump inlet pipe, wherein pump outlet cut-off valve and filling pump valve are sequentially arranged on pump outlet pipe;The present application gradually fills pump inlet pipeline by using segmented dense medium liquid, air is gradually absorbed and replaced by liquid by the action of centrifugal pump, so as to realize the dense filling of space in pump shell, ensure that pump inlet pipeline forms segmented dense structure before starting, so that liquid can smoothly enter pump shell and be pumped to outlet through the working cavity of pump, effectively avoid the phenomenon of pumping empty when pump starts, ensure the normal flow of liquid.

The invention discloses a preparation method of a mesoscopic perovskite solar cell and the mesoscopic perovskite solar cell, and belongs to the technical field of mesoscopic perovskite solar cells. The passivation layers are prepared on the surface of the mesoporous spacer layer and the surface of the pore inner wall of the mesoscopic perovskite solar cell, oxygen vacancies on the surface of the mesoporous spacer layer can be effectively reduced, recombination of carriers is reduced, direct contact between the mesoporous spacer layer and a mesoporous membrane layer below the mesoporous spacer layer and a perovskite active layer is prevented, and the performance of the solar cell is improved. The interface of the perovskite crystal is passivated, carrier recombination at the interface of the mesoporous spacing layer and the perovskite active layer and at the interface of the perovskite active layer and the back electrode is inhibited, the carrier transmission life is prolonged, and the cell efficiency is improved.

The invention discloses a method for manufacturing a lightweight automobile conformal wire harness by using multi-material micro 3D printing, and relates to the technical field of automobile wire harness structure manufacturing, and the method comprises the following steps: S10, carrying out three-dimensional modeling on an automobile structure needing wire harness arrangement, and processing a curved surface model substrate matched with the surface of an automobile; and S20, at least two materials used for printing the automobile wire harness structure are attached to the curved surface of the model substrate on the curved surface model substrate matched with the automobile surface to print the automobile wire harness structure. Complete conformal and tight fitting of the automobile wire harness and the automobile structure can be realized, the bending and form sudden change part is not easy to break, the bending stress is small, wiring can be completed in a narrow space, the automation degree of wire harness production and assembly can be effectively improved, the manual participation process is greatly reduced, the labor cost is reduced, and the production efficiency is improved. And the workpieces do not need to be frequently switched, manufacturing process parameters do not need to be adjusted, batch production can be further facilitated, the production speed is higher, and automation can be better achieved.

The invention belongs to the technical field of medical tools, and particularly relates to an anti-pollution infusion port maintenance and disinfection positioner. Comprising a maintenance tool box, a box cover is hinged to the maintenance tool box, UVC patch lamp beads are installed on the inner face of the box cover, an electric appliance bin is arranged in the maintenance tool box, a dry battery and a control circuit board are installed in the electric appliance bin, the dry battery is electrically connected with the control circuit board, and the control circuit board is electrically connected with the UVC patch lamp beads. The infusion port marking opening is formed in the transparent dressing, the positioning ring is fixed to the transparent dressing, the injection base is installed on the positioning ring in a threaded mode, the guide hole is formed in the middle of the transparent dressing, the needle head of the butterfly wing needle penetrates into the guide hole, the positioning notch formed in the head end of the butterfly wing needle is in sliding connection with the positioning wall on the injection base, and through cooperation, the puncture center point can be accurately positioned; the vertical insertion of the butterfly wing needle is ensured, the accuracy and stability of puncture are improved, the probability of puncture failure is reduced, and the pain and psychological burden of a patient are reduced.

The present application relates to a kind of extruded aluminum-wood double-slot type connection's modular structure system of special section, adopt double-slot type connection to form aluminum-wood combination structure module system, and realize the quick splicing between module by cast aluminum piece insertion.The frame member of the aluminum-wood combination structure module unit adopts aluminum alloy extruded special section.Frame node adopts double-slot type connection node, the node is connected by groove with extruded special section frame column using double-slot card, double-slot card is formed by two grooves and a section of vertical plate extrusion, vertical plate is holed, and is connected with frame beam using stainless steel bolt.Frame beam is connected with double-slot card before, and the slot of identical size with double-slot card vertical plate is opened, double-slot card vertical plate is inserted into frame beam, and double-slot card vertical plate is connected with frame beam by stainless steel bolt.

The utility model provides a continuous grease press, which relates to the technical field of grease presses and comprises an oil press, a hopper is mounted on the surface of the oil press, a barrel is arranged on the surface of the oil press, a pressing screw is mounted on the inner wall of the barrel, a controller is mounted on the surface of the oil press, and the controller is connected with the hopper and the barrel. An oil pan and a sliding way are installed at the position, located at the bottom of a barrel, of the surface of the oil press, a filtering device is arranged on the side close to the oil pan, the filtering device filters impurities in squeezed oil through a processing hopper and a filtering net, and the filtering device comprises the processing hopper which is installed on one side of the oil press and is close to the oil pan. When the oil press is used for producing and processing oil, impurities in the oil can be pretreated and filtered, so that the quality of the oil is ensured, the impurities are reduced, subsequent further processing and using effects are facilitated, and the practicability of the oil press is also improved.

The utility model discloses an automobile sealing strip manufacturing die, which relates to the technical field of die design, and comprises a support frame, the top of the support frame is fixedly connected with a connecting plate, the outer surface of the support frame is provided with a polishing mechanism, the top of the connecting plate is provided with a fixing mechanism, and the polishing mechanism comprises a motor frame I; a first motor is fixedly connected to the inner wall of the first motor frame. According to the polishing device, the polishing wheel and the second motor are arranged, so that the polishing wheel rotates in the connecting strip, then the polishing wheel drives the first belt wheel to rotate, the first belt wheel drives the second belt wheel to rotate through a belt, and the second belt wheel drives the polishing wheel on the other side to rotate; and then, the sealing strip firstly passes through the grinding wheel, and through the grinding wheel capable of rotating in the connecting strip, the sealing strip can be ground when the sealing strip is pushed out of the connecting strip, so that the edge of the sealing strip becomes smoother and smoother, and the effect that problems occurring in the subsequent machining process are reduced is achieved.

The invention relates to the technical field of plate stacking and carrying, in particular to an intelligent continuous plate production and stack transfer robot which comprises a transfer support, and the space below the transfer support is divided into a plate grabbing station, a middle transfer area and a stacking area in the length direction; a transfer hanging bracket is arranged under the transfer support, and a rope driving mechanism matched with the transfer hanging bracket is arranged on the transfer support and used for achieving lifting of the transfer hanging bracket. A composite grasping mechanism is arranged below the transfer hanging bracket, comprises a clamping unit and a vacuum adsorption unit, and is equipped with a buffer height control assembly; a positioning locking mechanism matched with the transfer hanging bracket is further arranged on the transfer support, comprises a transverse driving assembly, a locking base rod and an anti-falling frame and is used for achieving horizontal accurate movement and locking and anti-swing. Through combination of rope-driven lifting and positioning locking, the stability problem in the heavy-load plate transferring process is solved, the adaptability is improved by combining grabbing, efficient, continuous and automatic transferring and stacking of a production line are achieved, the structure is simple, cost is low, and reliability is high.

This utility model relates to a soleplate assembly for an electric iron and an electric iron. The soleplate assembly includes a soleplate, which includes a soleplate body and a vaporization cap. The soleplate body and the vaporization cap define independent first and second steam channels. The soleplate also has a first electric heating element for heating the first steam channel and a first thermostat electrically connected to the first heating element. The vaporization cap defines a third steam channel, the outlet of which is connected to the inlet of the second steam channel. The vaporization cap also has a second heating element for heating the third steam channel and a second thermostat electrically connected to the second heating element. The advantages are: this soleplate assembly does not interfere with the use of the powerful steam mode and the normal steam mode, ensuring normal use of the normal steam mode while also maintaining the intensity of the powerful steam mode, and effectively reducing the risk of dripping when using both steam modes.

This invention discloses a high-temperature denitrification catalyst for use in waste incinerators and its preparation process, relating to the field of catalyst technology. The catalyst uses anatase titanium dioxide as a support, vanadium pentoxide and tungsten oxide as active ingredients, and nickel powder is added to form a mixture that impregnates the support before calcination. This invention adds a large amount of nickel powder to the original catalyst for mixing, so that the high-temperature conditions provided by the catalyst in the waste incinerator drive the reaction of nickel and oxides with water vapor, reducing the presence of water in the catalyst environment, thereby improving the reaction of SO2 and NH3, increasing the conversion rate of NO, and improving the catalyst's conversion performance.

The utility model discloses a roadbed subsidence repairing device, and relates to the technical field of road repairing. The device comprises a base plate, the bottom of the base plate is in sliding fit with a pressing base plate, and a groove is formed in the bottom of the pressing base plate; the first annular plate is fixedly matched with the peripheral side of the pressing base plate, a second annular plate is rotatably matched with the outer side wall of the first annular plate, two fixing columns are fixedly matched with the outer side wall of the second annular plate, and sliding rods are elastically and slidably matched with the interiors of the fixing columns. Through the sliding plate, the scraping plate rotates at the bottom of the pressing base plate under the action of the sliding plate, raw materials attached to the bottom of the pressing base plate are cleaned through one side of the scraping plate, the problem that repairing raw materials are attached to the bottom of the pressing base plate is solved, and the punching level of the bottom of the pressing base plate on the raw materials at the repairing position is improved.

This invention discloses a method, system, device, and storage medium for virtual-real fusion based on spatial positioning. The method includes: determining multiple spatial positioning base points in a real-world scene and determining the relative positional relationship between each spatial positioning base point and the physical object to be interacted with; constructing a first coordinate system in a virtual digital space and determining the first coordinate of each spatial positioning base point in the first coordinate system; modeling the real-world scene according to the first coordinate system to obtain a virtual digital model, and then determining the model area to be fused in the virtual digital model according to the relative positional relationship and the first coordinate; and performing virtual-real fusion between the model area to be fused and the physical object to be interacted with based on the spatial positioning base points. This invention reduces the number of comparisons and identifications between physical objects and digital models, improving the efficiency of mixed reality display and interaction; it also ensures the real-time and preparedness of virtual-real fusion, greatly enhancing the user's interactive experience, and can be widely applied in the field of mixed reality technology.

This utility model discloses a shuttle-type intelligent three-dimensional storage rack, including two fixed rods a and two fixed rods b installed on the right side of the fixed rods a. Extension rods are provided on the upper sides of both fixed rods a and b. Fixed frames are fixedly connected to the opposite sides of both fixed rods a and b and the extension rods to support goods. A trolley is provided between the two fixed frames. A lifting plate is provided inside the upper outer wall of each of the two trolleys. A lifting mechanism is provided inside each of the two trolleys to lift the lifting plate. By installing fixing strips and slots, the insertion position of the forklift can be restricted. The forklift driver only needs to align the fork arm with the slot to ensure accurate connection between the fork arm and the trolley. Compared to situations without such restrictions, the driver does not need to rely on experience and visual inspection to roughly determine the insertion position, greatly reducing various problems caused by positioning deviations.

The application discloses a kind of based on geological model's earthwork quantity calculation method and device.Method includes: obtaining the initial geological model corresponding to project engineering, design elevation surface, partition boundary, obtains the point cloud data obtained by project engineering field scanning;First geological model is generated;Based on design elevation surface and partition boundary, first geological model is partitioned and handled to form partitioned geological model, and the expected excavation geological body of each partition is determined;Based on point cloud data, current topographic surface is determined, and each expected excavation geological body of each partition is divided into two parts by using topographic surface, when meeting second preset condition, grid repair is carried out to the grid corresponding to the geological body that has been dug and the grid corresponding to remaining geological body, to obtain the geological model that is repaired completely;Based on the geological model that is repaired completely, the earthwork quantity is determined.The application improves the efficiency and accuracy of calculating earthwork quantity in civil engineering construction.

The application belongs to the technical field of defoaming agent preparation, and more particularly relates to a defoaming agent and a defoaming method thereof in petrochemical industry. The defoaming agent is a silicone oil defoaming agent, which comprises the following raw materials in parts by weight: 100-120 parts of dimethyl silicone oil, 6-9 parts of silica sol, 3-4 parts of chitosan, and 10-12 parts of emulsifier. The dimethyl silicone oil is first treated by allyl glycidyl ether and then grafted with tyrosine with an isoelectric point of 5.66. The silica sol is first treated by ammonia water and then surface-modified by hexamethyldisilazane. The pH of the defoaming agent is 7.0. The product obtained by the application has the advantages of high defoaming efficiency and short defoaming time.

The utility model discloses a particle silicon surface cleaning device which comprises side plates, a conveying belt, a mounting frame, a cleaning box and a spraying device, the conveying belt is arranged between the two opposite side plates, and screen holes are formed in the conveying belt; the mounting frame is arranged in the conveying belt and is connected with the two side plates; the cleaning box is arranged on the mounting frame, a partition plate is arranged in the cleaning box to divide the cleaning box into a chemical cleaning area and a clear water cleaning area, and the chemical cleaning area and the clear water cleaning area are filled with dust removal liquid and clear water respectively; the two spraying devices are connected with the chemical cleaning area and the clean water cleaning area respectively, and the spraying ends of the two spraying devices extend to the upper portion of the conveying belt respectively. After particle silicon is subjected to chemical cleaning, clean water spraying can be conducted, chemical substances on the particle silicon are reduced, the purity of the particle silicon is improved, and the service life of the particle silicon is prolonged. And a hidden spraying device is adopted, and the cleaning box is arranged in the conveying belt, so that the occupied space is reduced.

The invention belongs to the technical field of iron phosphate preparation, and provides an efficient washing and dewatering integrated device for iron phosphate. The efficient washing and dewatering integrated device for the iron phosphate is characterized by comprising a multi-stage countercurrent washing and filter pressing part which is arranged in the feeding direction and is used for carrying out solid-liquid separation and washing on iron phosphate slurry, and a filter pressing part which is arranged in the feeding direction and is used for carrying out solid-liquid separation on the iron phosphate slurry, the partitioned cross-flow type air drying part is arranged at one end of the multi-stage countercurrent washing and filter pressing part, and the partitioned cross-flow type air drying part is used for drying the iron phosphate slurry subjected to solid-liquid separation and washing; the punching part is arranged in the partitioned cross-flow type air-drying part and is used for punching the iron phosphate material which is formed after solid-liquid separation and washing; and the high-temperature dehydration kiln is used for calcining and dehydrating the pre-dried material.

The utility model relates to the technical field of anti-theft doors, in particular to a front-steel and rear-wood plugboard anti-theft door which comprises an outer protection frame body, a wood plugboard is inserted in the front face of the outer protection frame body, an inner protection frame body is inserted in the front end of the wood plugboard, and the left end of the inner side of the outer protection frame body is movably connected with a door body through a hinge. A square groove is formed in the outer side of the door body, an elastic rubber capsule body is bonded to the inner side of the square groove, and an L-shaped safe edge is arranged on the rear side of the door body. Under the action of the sealing rubber capsule, the buffering rubber mat and the elastic rubber capsule, the anti-theft door has the advantages of being good in sound insulation and heat preservation effect, and the problems that an existing anti-theft door with a front steel inserting plate and a rear wood inserting plate is not ideal in sound insulation effect, a gap is always reserved between the anti-theft door and a frame body when the anti-theft door is closed, and the anti-theft door is not convenient to open are solved. Due to the gaps, the sound insulation and heat preservation capacity of the anti-theft door is greatly reduced.

The application relates to the technical field of antibacterial patches, and particularly discloses an antibacterial slow-release patch, which comprises a skin-friendly and air-permeable layer arranged on the outer side and a slow-release drug layer arranged on the inner side of the skin-friendly and air-permeable layer, a sweat-absorbing substrate layer is arranged on the inner side of the slow-release drug layer, a back adhesive layer is arranged on the rear side of the sweat-absorbing substrate layer, a release paper layer is arranged on the rear side of the back adhesive layer, and a plurality of gel pieces are adhered to the back adhesive layer; the antibacterial slow-release patch is designed in a multilayer structure, can not only resist bacteria and inflammation and efficiently lock water, but also can reduce skin problems caused by sweat accumulation from multiple dimensions. On one hand, bacterial growth is inhibited to avoid inflammation caused by bacterial infection; on the other hand, the skin is kept dry to prevent the horny layer from being excessively hydrated, reduce the occurrence probability of skin diseases such as eczema and miliaria, and provide comprehensive protection for skin health, and the antibacterial slow-release patch is particularly suitable for scenes with more sweat such as sports and high temperature.

The utility model relates to a kind of monitoring camera processing lens detection device, it is related to monitoring camera lens detection technical field, including rack and optical detector, the side of the rack is equipped with PLC controller, the inner side of rack is equipped with chain plate conveyor, the conveying chain plate of chain plate conveyor is uniformly fixed with fixed seat, fixed seat is fixed with fixed clamp outside, the position of fixed seat corresponding fixed clamp is connected with elastic clamping assembly by transmission mechanism, and drive mechanism for driving transmission mechanism movement is installed on the rack, the monitoring camera processing lens detection device, clamping process is fast, stable and does not damage lens surface, reduces the process of manpower participation, reduces human cost, eliminates the inconsistency of manual operation, the double side of lens can be simultaneously subjected to optical detection, without turning over lens or setting multiple processes, greatly improves detection efficiency.

This invention discloses a fermentation process for Bacillus subtilis, comprising: adding Bacillus subtilis seed culture to a fermenter containing a culture medium, and real-time collecting the real-time temperature, real-time dissolved oxygen content, and real-time pH of the culture medium; determining a first introduction rate of carbon dioxide gas in response to a real-time pH greater than 7; determining a second introduction rate of air based on the real-time dissolved oxygen content; determining a first introduction temperature of carbon dioxide gas and air based on the real-time temperature, the first introduction rate, and the second introduction rate; determining a first stirring speed of the stirrer based on the first and second introduction rates; introducing the first introduction rate of carbon dioxide gas and the second introduction rate of air into the culture medium after heating or cooling to the first introduction temperature, and controlling the stirrer to stir at the first stirring speed; determining that fermentation is complete when the content of the target product in the culture medium reaches a threshold. This invention simplifies the fermentation environment adjustment steps and reduces resource waste.

The application discloses a time series data synchronization method and device, electronic equipment and storage medium. The method comprises the following steps: acquiring a to-be-synchronized time series data set, dividing the to-be-synchronized time series data set into a plurality of to-be-synchronized sub-data sets according to the index dimension of the time series data; dividing the to-be-synchronized sub-data sets into a plurality of segmented data sets belonging to different time periods according to the collection time range of the to-be-synchronized sub-data sets; and performing data synchronization on each segmented data set of each to-be-synchronized sub-data set respectively, so as to realize synchronization of the to-be-synchronized time series data set. The application solves the technical problems that the time series data synchronization is prone to errors and the reliability is difficult to be ensured in the prior art.

This invention provides a reactive deodorizing agent matrix, its preparation method, and its application, specifically relating to the field of deodorizing agent technology. The reactive deodorizing agent matrix provided by this invention, by mass percentage, comprises the following raw materials: 37-65% organic wax, 12-20% emulsifier, 1-5% butene copolymer, 1-3% antioxidant, 1-5% oxidant, and 20-30% zinc-containing compound. This invention utilizes the oxidant to induce the zinc-containing compound to react with the wax, emulsifier, butene copolymer, and antioxidant under specific conditions, forming a chelate centered on zinc ions. This chelate contains various functional groups that can interact with odor molecules to form chemical bonds, resulting in an irreversible chemical reaction under quasi-chelation, rapidly and permanently removing odor molecules. The antioxidant stabilizes the chemical bonds between the zinc ion chelate and the odor molecules, improving the long-term stability of the chemical bonds and maintaining the long-term stability of the deodorizing effect.

This invention provides a marine anti-turbulence refrigeration system and control method, comprising a compressor, a shell-and-tube condenser, a throttling device, a liquid receiver, and a vacuum pump connected in sequence. The shell-and-tube condenser has a first outlet. The liquid receiver includes a receiving cavity and a pressure plate; the pressure plate divides the receiving cavity into a gaseous working fluid storage cavity and a liquid working fluid storage cavity located below the gaseous working fluid storage cavity; the pressure plate is provided with micropores; the liquid working fluid storage cavity has a first working fluid inlet and a first working fluid outlet; the first working fluid inlet is connected to the first outlet; the first working fluid outlet is connected to the inlet of the throttling device; the gaseous working fluid storage cavity has a second working fluid outlet; the inlet of the vacuum pump is connected to the second working fluid outlet, and the outlet of the vacuum pump is connected to the inlet of the shell-and-tube condenser. When the ship experiences turbulence, the liquid receiver and the vacuum pump, working together or individually, can prevent gaseous refrigerant from entering the throttling device due to the turbulence.

The invention discloses an application of a bacterial strain in production of an external product for improving the micro-ecology of the vagina of a human body, and the bacterial strain is Lactobacillus crispatus SPR003 and has 16S rDNA (ribosomal deoxyribonucleic acid) as shown in SEQ ID NO.1. The invention further discloses a preparation method of the bacterial strain for improving the micro-ecology of the vagina of the human body. The preservation number is GDMCC NO: 66664; the strain produces H2O2 and only produces D-lactic acid, and no drug-resistant gene is found; the external product is suitable for improving changes, caused by vaginal pathogenic bacteria, of micro-ecology of the vagina of the human body. Compared with other lactobacillus crispatus of the same type, the strain has the advantages that the H2O2 production capacity is high, the H2O2 production speed is high, the total amount of H2O2 produced within 12 hours is large, and the concentration of hydrogen peroxide can reach about 220 mu M / L after the strain is cultured for 12 hours in the conventional inoculation amount of 1%. H2O2 is a strong oxidant, and can directly kill or inhibit a plurality of pathogenic bacteria and conditioned pathogenic bacteria such as Gardner bacteria, campylobacter actinomycetes, prevotella and other BV-related anaerobic bacteria.