吊灯灯体（DY-001）

METHOD, APPARATUS AND DEVICE FOR GENERATING INSURANCE POLICY APPROVAL, AND COMPUTER READABLE STORAGE MEDIUM

A method, apparatus and device for generating an insurance policy approval, and a computer readable storage medium; by means of acquiring an approval template of an insurance product, invoking an element approval template and a node approval template related to a corrected element from corrected insurance policy information in an insurance policy, and finally filling the value before and after correction into the element approval template and incorporating the node approval template to directly generate an insurance policy approval, a corresponding approval for various insurance products and different insurance policy information corrections can be generated; thus, the requirements for generating an approval can be met when a product type changes or approval requirements change.

Leakage-proof agent for geological storage of CO2 and preparation method of leakage-proof agent

The invention discloses a leakage-proof agent for geological storage of CO2. The structural formula of the leakage-proof agent is shown in the specification, wherein R is a hydrophilic grafted copolymer monomer; 5 < = a < = 15, 10 < = b < = 20. A preparation method of an anti-leakage agent for geological storage of CO2 comprises the following steps: S1, adding polyvinyl alcohol and water into a reaction container, heating until the polyvinyl alcohol is completely dissolved, cooling to room temperature, adding an emulsifier, heating, adding an ammonium persulfate aqueous solution, heating, slowly dropwise adding vinyl acetate, carrying out a heat preservation reaction, adding the ammonium persulfate aqueous solution, heating, and carrying out a reflux reaction to obtain a reaction solution; after the reaction is finished, adjusting the pH to 5-6 to obtain an intermediate I; s2, adding the intermediate I into another reaction container, raising the temperature, adding an ammonium persulfate ...

Fracturing fluid real-time mixing accurate regulation and control and data acquisition technology

The invention provides a fracturing fluid real-time mixing accurate regulation and control and data acquisition technology. The technology comprises the following steps: step 1, a control unit; step 2, connecting an auxiliary agent needing to be added with an inlet pipeline, and connecting an outlet pipeline to a supply point; 3, a thickening agent pump pumps the thickening agent in the inlet pipeline into a thickening agent flow meter for metering, and an auxiliary agent pump pumps an auxiliary agent in the inlet pipeline into an auxiliary agent flow meter for metering; and 4, the control unit collects actual flow data of the auxiliary agent and the thickening agent, the adjusting frequency is determined according to the construction parameters and the actual flow data, and an adjusting frequency signal is transmitted to the thickening agent pump and the auxiliary agent pump so as to control operation of the thickening agent pump and the auxiliary agent pump. The additive added during ...

Sealed valve

The invention relates to a closed valve which comprises a valve body, an adjusting mechanism and a locking mechanism. A valve rod is rotationally installed on the inner wall of the valve body, and a blade capable of rotating around the valve rod is embedded in one end of the valve rod. The adjusting mechanism comprises a handle and a fixing seat, one end of the handle is arranged on the valve rod in a sleeving mode and attached to the vertical face of the fixing seat, and the adjusting mechanism adjusts the rotating angle of the blade by rotating the valve rod. The locking mechanism comprises a toothed plate and a positioning pin, the toothed plate is arranged on the valve rod in a sleeving mode, the toothed plate and the handle can coaxially rotate around the valve rod in the same direction, a positioning tooth part is arranged on the outer edge of the toothed plate in the rotating direction, a pin head of the positioning pin is conical, and the pin head can be meshed with the positioning ...

Low-shrinkage high-strength liquid cross-linked plugging material as well as preparation method and application thereof

The invention discloses a low-shrinkage high-strength liquid cross-linked plugging material, which is composed of the following components: 30-90 parts of unsaturated polyester; 1-5 parts of a surfactant/foaming agent; and 1-10 parts of a curing agent/reinforcing agent. The invention also discloses a preparation method of the low-shrinkage high-strength liquid cross-linked plugging material, which comprises the following steps: (1) adding the surfactant in the formula amount into the unsaturated polyester in the formula amount, and uniformly stirring to obtain a mixed material; (2) adding a formula amount of curing agent, and uniformly stirring to obtain a mixed material; (3) adding a formula amount of reinforcing agent, and uniformly stirring to obtain a mixed material; (4) adding a foaming agent according to a formula ratio, and uniformly stirring to obtain a mixed material; and (5) sealing the mixture material, placing the mixture material in an oven, and carrying out a heating reaction ...