63results about How to "Resolve freeze" patented technology

An annua extract composition for skin, product and application thereof, the composition contains 5-10% of Artemisia annua volatile oil, 10-20% of artemisinin, and 25-7 escin 45%, Baicalin 7‑20%, Oleanolic Acid 7‑15%, Borneol 5‑10%. The product of the invention is used for the treatment of skin diseases, and has high safety, good compliance and remarkable efficacy.

The invention relates to a test sluice gate anti-freezing device, which mainly solves the problem of freezing due to existence of a nonflowing dead water region of the existing test sluice gate. The test sluice gate anti-freezing device is characterized in that a flow guide pipe (1) is in a pipe shape; the lower end of the flow guide pipe (1) is provided with a sealing seat; a sealing seat outer groove is filled with a sealing ring; an annular lug boss (3) is arranged outside the upper part of the flow guide pipe (1); a flow guide groove is formed in the lug boss (3) in the axial direction; the sealing seat of the flow guide pipe (1) is arranged in the lower part of a wellhead small four-way valve (4) and is sealed; a test sluice gate short connector (2) is connected onto the outside of the lug boss (3) of the flow guide pipe (1) through internal screw threads; the lower end of the test sluice gate short connector (2) is connected onto a coupling short connector arranged on the wellhead small four-way valve (4) through screw threads; the upper end of the test sluice gate short connector (2) is connected with the lower end of a test sluice gate (5) through screw threads; and a flow guide annular space is formed between the flow guide pipe (1) and the test sluice gate short connector (2). The test sluice gate anti-freezing device has the characteristics that no dead water region exists; and freezing cannot occur.

The invention relates to a preparation method of high-efficient corrosion inhibition type anti-freezing fluid for coal or ore powder transportation. The preparation method comprises the following steps of: dissolving anhydrous calcium chloride in water to form a solution, adding a urea solution and a magnesium chloride solution after dissolution under stirring, and then sequentially adding solutions of composite corrosion inhibitor raw materials, including amino trimethylene phosphonic acid, zinc sulfate, triethanolamine, benzotriazol, sodium benzoate, cinnamic acid and the like. According to the preparation method disclosed by the invention, calcium chloride is taken as a main raw material of the anti-freezing fluid, urea and magnesium chloride are added for solving the problem of single component, and thus the performances of the anti-freezing fluid are more excellent; simultaneously, the non-toxic and harmless composite corrosion inhibitor components are provided, so that a formula system of the traditional anti-freezing fluid for coal or ore powder transportation is changed; and the high-efficient corrosion inhibition type anti-freezing fluid for coal or ore powder transportation, obtained by research and development, is in line with the technical conditions of the anti-freezing fluid for transporting TB / T3208-2008 bulk particle goods of ministry of railways, and has the characteristics of simple preparation process, good anti-corrosion effect, low production cost, nonflammable property, no toxicity, no odor, no taste and the like.

A motor is provided. The motor comprises a housing, a stator and a rotor. The stator further has a plurality of heat dissipation hole groups, each heat dissipation hole group having two first strip-shaped holes arranged on both sides of a corresponding stator slot, each first strip-shaped hole extending in an axial direction of the stator and opening toward a radially outer side of the stator; thehousing is provided with a plurality of second strip holes, and each second strip hole corresponding to a first strip hole. The motor further includes a plurality of first semiconductor cooling sheets, each semiconductor cooling sheet being inserted into a first strip-shaped hole, and a cold end face of each semiconductor cooling sheet facing a stator slot adjacent thereto; an outer heat dissipation device is arranged on the outer surface of the housing; a plurality of first heat conduction fins are included, each of which is connected with an external heat dissipation device, and each of thefirst heat conduction fins is inserted into a second strip hole and a corresponding first strip hole, and contacts with a hot end surface of a semiconductor cooling sheets in the first strip hole. The motor has high heat dissipation efficiency and excellent motor performance.