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Throttling well killing device with sand prevention structure
PendingCN119466635AHas a sand-proof structureavoid damagePhotovoltaicsFluid removalHydraulic cylinderWell kill
The throttling well killing device comprises a height adjusting structure, a position adjusting structure is fixed to the upper side of the height adjusting structure, a throttling well killing structure is detachably installed on the position adjusting structure, a recycling structure is embedded in the position adjusting structure, and an energy-saving structure is detachably installed on the upper side of the position adjusting structure. The height adjusting structure comprises a bottom box, a first height adjusting assembly is embedded in the bottom box, a bottom plate is fixed to the upper side of the first height adjusting assembly, the bottom box limits and fixes the bottom plate through a limiting assembly, the first height adjusting assembly comprises a hydraulic cylinder, and the hydraulic cylinder drives a first shock absorber through a hydraulic rod to telescopically adjust the position of the bottom plate. The throttling and well killing device with the sand prevention structure automatically treats sand and stones, automatically adjusts the height, automatically gives an alarm and recycles oil when oil leaks, automatically protects the throttling and well killing device, and has the advantage of saving energy at the same time.
Owner:JIANGSU YIDELONG GASOLINEEUM MACHINERY
Wall thickness measuring device for safety identification of building structure
ActiveCN222544610UEasy to store and carrysmall footprintMechanical thickness measurementsMeasuring rulerMechanical engineering
The utility model discloses a wall thickness measuring device for safety identification of a building structure, which comprises a measuring scale main body, the measuring scale main body comprises three measuring rods, the three measuring rods are hinged through two arranged hinges, a dial gauge is arranged on the top wall of the measuring scale main body, and the measuring scale main body is connected with the measuring scale main body. A fixed clamping plate and a movable clamping plate are arranged on the measuring ruler main body, the fixed clamping plate is fixedly adhered to the rear side wall of the end of the measuring ruler main body, the clamping surface of the fixed clamping plate is aligned with the initial scale of the dial gauge, a T-shaped sliding groove is formed in the rear side wall of the measuring ruler main body, and a T-shaped sliding block is fixedly adhered to the front side wall of the movable clamping plate. The T-shaped sliding block is connected in the T-shaped sliding groove in a sliding mode, and two limiting mechanisms are arranged on the measuring rod in the middle. When the measuring ruler is not used, the two inserting rods of the limiting mechanism can be pulled out of the two inserting grooves respectively, the three measuring rods can be turned over and stacked, occupied space is reduced, and the measuring ruler body is convenient to store and carry.
Owner:SHANXI ARCHITECTURE KEXUE RES YUAN
A method and system for clearing TBOX device reservation messages
PendingCN122268884AReasonable method of removalReliable method of removalReservationsTransmissionTimestampEngineering
The application provides a kind of based on TBOX equipment reservation message clearing method and system, belong to the technical field of Internet of Vehicles, the method includes: in response to power-on information, obtain the reservation information stored locally;Establish MQTT link, obtain the clearing configuration timestamp issued by cloud;The timestamp of the reservation information is compared with the clearing configuration timestamp, if the timestamp of the reservation information is less than or equal to the clearing configuration timestamp, delete the reservation information.The reservation message clearing method of the application is reasonable and reliable, ensures vehicle safety, improves user experience;Ensure that after the user vehicle leaves the factory, clear all kinds of operations on the platform and APP, prevent the whole vehicle from waking up regularly, cause the loss and user experience brought to the customer;Ensure that after different APP users bind real vehicles, after user unbinding, all APP interfaces can be cleared Function operated, ensure the privacy of the car owner.
Owner:DONGFENG MOTOR GRP
Hinge structure, refrigerator and door hovering control method
ActiveCN119664200ASolve the problem of failure caused by wearavoid failureLighting and heating apparatusDomestic cooling apparatusIceboxClassical mechanics
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Method for purifying phenol-containing material extracted from coal tar
PendingCN119431114Areduce viscositycause lossOrganic compound preparationCarboxylic acid esters preparationProcess engineeringAniline
The invention provides a method for purifying a phenol-containing material extracted from coal tar, which comprises the following steps: carrying out a series of impurity removal treatment and purification treatment on the phenol-containing material to finally obtain pyridine products, aniline, various fatty acid esters and other products. The method can solve the problems of high fatty acid and pyridine base content, strong smell and serious raw material waste in part of phenolic materials produced in the prior art.
Owner:CCTEG CHINA COAL RES INST
A molten salt loop hydraulic balance adjusting method and related device
ActiveCN122062515BGuarantee hydraulic balanceImprove running stabilityHeat storage plantsHeat exchange apparatusMolten saltProcess engineering
The application provides a molten salt loop hydraulic balance adjusting method and related device, and belongs to the technical field of molten salt loop hydraulic balance regulation. A transfer device is arranged on a molten salt loop main pipe in a molten salt loop. The molten salt loop hydraulic balance adjusting method sequentially executes a salt feeding and air exhausting task, a circulating air exhausting task and a salt discharging task. The air in the molten salt loop main pipe is quickly and effectively exhausted by sequentially executing the salt feeding and air exhausting task, the circulating air exhausting task and the salt discharging task, so that the molten salt loop reaches hydraulic balance. The method replaces manual adjustment and a large-capacity open exhaust device throughout the whole process, realizes automatic and accurate control of the whole exhaust process, effectively reduces the equipment and operation and maintenance cost, effectively reduces the exhaust equipment cost and operation energy consumption, and significantly improves the loop operation stability.
Owner:NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GRP +1