44results about How to "Improve safety and environmental performance" patented technology

The present invention discloses an anti-radiation carbon fiber heating cable. The anti-radiation carbon fiber heating cable comprises a heating wire harnesses consisting of carbon fibers, wherein an insulation protection layer is wrapped outside the heating wire harnesses; a conductive plastic layer is wrapped outside the insulation protection layer; conductive wires are laid outside the conductive plastic layer in parallel and are clung to the conductive plastic layer in parallel; and a protective sheath is wrapped outside the conductive wires and the conductive plastic layer. A novel shielding layer is arranged in the cable, so that the cable not only can be adaptive to softness and bend-ability of the carbon fibers, is good in shield effect, convenient to package and construct, but also is easy to manufacture, relatively low in cost and long in service life.

The invention relates to the field of high molecular sealing materials and discloses a single-component silane modified polyether sealant composition and a sealant prepared from the single-component silane modified polyether sealant composition. The single-component silane modified polyether sealant composition disclosed by the invention is prepared from silane modified polyether resin, alkoxy terminated polydimethylsiloxane, a plasticizing agent, reinforcing filler, a water removal agent, a light stabilizing agent, an ultraviolet absorbent, a coupling agent and a catalyst. The sealant disclosed by the invention has the advantages of good smell, good ageing resistance, high recovery rate and the like.

The invention relates to high-pressure cleaning equipment capable of saving water and energy and fusing air and water, comprising a main installation shell, a cleaning gun, a pressure sensing valve, a main water pump, an air pressure adjusting valve, a plurality of connecting pipes and a honeycomb type Venn high-pressure air-water fusion tank, wherein the main water pump is connected with a waterinlet of the honeycomb type Venn high-pressure air-water fusion tank; the air pressure adjusting valve is arranged on a main air passage of an air pump communicated with the tank; and the shape structures in a honeycomb type Venn integrated exhaust hole in the tank have three kinds of design of an inclined type, a spiral type and a tapered Venn type. The integral cleaning equipment can be controlled to work by a buffer throttling valve and the air pump. The invention establishes a structure for realizing pulse high-pressure cleaning by the fusion of high-pressure air and water, and the working pressure is not too high; the pressure is designed outside an outlet during pulse, the pressure of the tank is safe and reliable, and the non-drive design can be realized. The design scheme has simple structure, convenient installation and use and favorable water and energy saving as well as safe and environmental-friendly capacities, reduces the maintenance cost and improves the use efficiency and the stability of equipment.

The invention provides a phosphorus-free slow-release scale inhibitor and a synthesis method thereof, which relate to the field of water treatment. The phosphorus-free slow-release antiscalant includes active ingredients, additives and water. The active ingredient includes polyepoxysuccinic acid, thiourea, polyaspartic acid, acrylic acid copolymer and inorganic sodium salt, and the auxiliary agent is small molecule alcohol. Its preparation method is to add water, polyepoxysuccinic acid, inorganic sodium salt, and thiourea into the container in sequence, stir for 1-3 hours at 50-90 degrees, and then add polyaspartic acid and acrylic acid copolymer in sequence and additives, stirred at room temperature for 1‑2 hours, and obtained product. The phosphorus-free composite slow-release scale inhibitor of the present invention has excellent slow-release scale inhibitor effect and strong market competitiveness. By adding active components such as thiourea, it can improve the dispersion ability of small dirt particles and improve its slow-release effect. , Anti-rust and anti-scale properties. The formula does not contain any inorganic phosphorus and organic phosphorus compounds, has excellent safety and environmental protection performance, and has broad practical application prospects.