6 results about "Boiling Point Temperatures" patented technology

A cooling device cools a power semiconductor device. The cooling device includes a tank that accommodates a power semiconductor device, insulating oil, and a refrigerant liquid having a boiling point temperature lower than a boiling point temperature of the insulating oil and a specific gravity larger than a specific gravity of the insulating oil. The insulating oil and the refrigerant liquid are stored in the tank in a mixed state to cool the power semiconductor device.

The embodiment of the specification discloses a method for preparing slurry of a food processor. Before performing crushing and boiling on materials, the food processor is provided with a boiling maintaining stage for obtaining boiling point temperature. The method comprises: in the boiling maintaining stage, detecting the touchproof temperature when the slurry is heated to trigger an overflow signal, determining the reference boiling point temperature according to the relationship between the touchproof temperature and the preset first temperature threshold; ignoring the overflow signal, cyclically heating the slurry in a preset heating mode, collecting the real-time slurry temperature corresponding to each heating end, updating the reference boiling point temperature after each collection of the real-time slurry temperature, and performing the crushing and boiling operation after the boiling maintaining stage ends; and taking the latest reference boiling point temperature after the boiling maintaining stage ends as the current altitude boiling point temperature. In the process of preparing slurry, the user does not need to perform an additional boiling point detection process, and does not need to additionally add a pressure detection device, so that the accurate recognition of the boiling point temperature is realized, and the safety hidden danger caused by the excessively high temperature is avoided.

The invention discloses a non-pressure heating structure capable of stably outputting boiling-point high-temperature liquid. The non-pressure heating structure comprises a heating cavity, a heating body is arranged in the heating cavity, a liquid inlet is formed in the position, close to the bottom, of the heating cavity, an overflow upper edge opening is formed in one side of the upper end of the heating cavity, a separation buffer cavity is formed in the outer side of the overflow upper edge opening, and a liquid outlet is formed in the lower portion of the separation buffer cavity. The invention has the advantages that: 1, the liquid outlet temperature of the structure is determined by the physical boiling point of liquid, the liquid is not boiled and vaporized, and gas-liquid mixed fluid cannot climb over the upper edge opening of the heating cavity, so that the liquid is not discharged, and the liquid outlet temperature is the boiling point temperature and is constant; 2, when the heating energy is stably input, the output flow of the high-temperature liquid is stable and sustainable; 3, according to the output of the high-temperature liquid in the structure, under the condition that the low-temperature liquid inlet supply condition is constant, the flow of the high-temperature liquid is controllable by controlling the input level of heating energy, and when heating is stopped, the output of the high-temperature liquid is also stopped; and 4, the whole structure is communicated with the atmosphere, so that no-pressure safety is always realized during operation.

The invention relates to a process for producing steam, comprising: (a) heating a feed water stream (1) in a first heat exchanger (3) to a temperature in a range from 40 to 95 °C; (b) heating the feed water stream (1) in a second heat exchanger (5) to a temperature in a range from 90 to 115 °C; (c) feeding the heated feed water stream into an apparatus for thermal degassing (7), which is operated at a boiling temperature in a range from 90 to 115 °C, thereby obtaining a gas stream (35) and a degassed water stream (9); (d) optionally compressing the degassed water stream (9) to a pressure in a range from 0.9 to 20 bar(abs); (e) feeding the degassed water stream into a flash apparatus (13), in which the degassed water stream is expanded to a pressure in a range from 0.04 to 0.8 bar(abs), so that a part of the water evaporates to form steam (21), or evaporating the degassed water in an evaporator (47); (f) preferably compressing the steam (21) in at least one compressor with at least one compressor stage (23, 25).

The invention relates to a computer-implemented method for determining values of reaction parameters of a reaction model for pyrolyzing a plastic starting material into a plastic product, comprising the following steps:-providing experimental data comprising a plurality of boiling point distributions of the plastic product, each boiling point distribution being paired with a pyrolysis temperature and a pyrolysis duration, wherein each boiling point distribution is incorporated into N lumped units L1 to LN, where each lumped unit is paired with a boiling point temperature range; -determining corresponding values of the reaction parameters by fitting the reaction parameters of the reaction model to the experimental data. For each lumped unit Li from L1 to LN-1, the reaction model has a partial reaction determined by at least one reaction parameter to describe the conversion of the plastic product of the lumped unit into a plastic product of an adjacent lumped unit Li + 1 located below with respect to the boiling temperature range, where the reaction model has less than N * (N-1) / 2 partial reactions.

The application discloses a kind of liquid drop high-temperature turbulent flow conditions under the evaporation fast prediction method and system, prediction method: obtaining ambient temperature, ambient pressure, liquid drop temperature, liquid drop boiling point temperature, to calculate the saturation vapor pressure of liquid drop evaporation, reference temperature, equivalent molecular mass, gas dynamic viscosity;Based on reference temperature, calculate binary diffusion coefficient;The gas phase density and liquid phase density of liquid drop evaporation are calculated;The evaporation rate constant of liquid drop is calculated and the influence of Stefan flow is introduced;Custom non-dimensional parameter is calculated, to carry out linear fitting to evaporation rate constant and custom non-dimensional parameter and obtain numerical relationship formula.The application can be used in the evaporation rate prediction in the field of numerical simulation simulation liquid drop evaporation, by studying the evaporation behavior of n-dodecane single liquid drop under turbulent flow conditions, it has significant meaning for improving the combustion reaction in internal combustion engine.