5 results about "Inlet temperature" patented technology

The invention discloses a method for measuring the temperatures of the out-flowing water and the discharged water of a heater of a turbine steam cooler, which comprises the following steps: selecting a design condition or performance test condition of an assembling unit as reference conditions, and selecting the thermodynamic parameters of the j(th) heater under the reference conditions, wherein the thermodynamic parameters comprise a shell pressure, an extraction temperature, a shell extraction enthalpy, an out-flowing water temperature, a water inlet temperature and a power of the assembling unit; calculating the heat-transfer characteristic coefficient of a stream cooling section of the heater under the reference conditions; reading or calculating the actual shell pressure, extraction temperature, water inlet temperature of the j(th) heater and the actual power of the assembling unit from a supervisor information system (SIS) or decentralized control system (DCS) of a heat-engine plant; calculating and obtaining the heat-transfer characteristic coefficient of the heater according to the heat-transfer characteristic coefficient of the stream cooling section of the heater and the actual power of the assembling unit; and finally obtaining the out-flowing water temperature under the actual conditions by carrying out iterative computations, wherein the out-flowing water temperature is equal to the saturation temperature under the shell pressure.

The invention provides a method for relieving pattern segregation of spring steel. The method for relieving pattern segregation of the spring steel comprises the following steps of (1) conventional smelting and control over the temperature of an upper continuous casting platform; (2) the process of two-time fire cogging of a square billet with the dimension being 185*185 mm; and (3) the process of high-speed rolling for steel products the diameter of 14 mm, wherein the heating temperature is 1020-1150 DEG C, the temperature of a soaking zone is 1020-1080 DEG C, and the temperature difference between an upper fracture surface and a lower fracture surface is smaller than or equal to 15 DEG C; the time in the furnace is 120-150 min, the start rolling temperature is 930-960 DEG C, the inlet temperature of a finishing mill is 870-900 DEG C, the inlet temperature of a reducing sizing mill is 830-850 DEG C, the finish rolling temperature is 820-850 DEG C, the outlet speed for pre-finishing is not greater than 8 m/s, and the largest roller speed of a Stelmor controlled cooling line is not greater than 33 m/s; and a 1# fan, a 2# fan are opened by 35%, and other fans and a heat preservation cover are completely opened. Compared with the prior art, by adoption of the method, the problem that pattern segregation exceeds the standard, and consequentially judgment amending is caused can be completely solved, and the production cost is greatly reduced.

The invention discloses a coiler type condenser. The coiler type condenser is composed of an inner cylinder, a condensation coiler, a cylinder body, a material preheating coiler, a cooling water outlet, a cooling water inlet and a secondary-steam inlet. Secondary steam enters the condenser from the inner cylinder to conduct heat exchange with fresh milk and cooling water, so that materials are preheated when the secondary steam condenses. The coiler type condenser is suitable for a 2400Kg/h double-effect falling-film evaporator. According to the coiler type condenser, a cooling tower is adopted, and the coiler type condenser is used under the conditions that the water inlet temperature is 30 DEG C and the water discharging temperature is 36 DEG C. The circulation volume of cooling water is not smaller than 56t/h. The feeding temperature of the fresh milk is not higher than 5 DEG C.