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57 results about "Fahrenheit degrees" patented technology

Fahrenheit (more precisely, a degree Fahrenheit) is a unit of measurement used to measure temperature. The conversion rate to Celsius is C= 5/9 x (F − 32).

Communications Cable and Method of Making Same

InactiveUS20090226177A1Withstand mechanical forceFacilitate a simple buffer tube onlyCommunication cablesFibre mechanical structuresEngineeringProtection layer
A communications cable and method for making same wherein a communications cable is able to withstand significantly higher thermal temperatures than conventional fiber whether it be general purpose, or rated as Plenum / Riser rating, or even MIL Spec type cables. A core fiber glass material with at least an 800 Fahrenheit degree operating ability allows the communications cable to survive in high heat or stress conditions. A polyimide coating on the outside of the fiber is a high temperature material and lends to this high operating temperature capability. By containing and protecting an optical pair of these fibers or even up to 4 glass fibers within a silicone rubber 1 mm diameter buffer tube, thermal protection of the high temperature glass within is increased. A single buffer tube type product and market that as a mini solution for fiber optic requirements within equipment or we individually or group wise mechanically protect these buffer tubes. The choice and decision to apply 2 layers of opposing woven aramid / KEVLAR™ fibers now begins to apply a enhance tensile strength capability resulting in significant increase of currently available fiber optic cables. Once this mechanical protection layer has been applied a second, but thicker layer of silicone rubber is applied as an outer protection jacket either over the single paired Duplex Cable or the 24 Pair or larger cable design.
Owner:TECH MINING COMPANY

Calcium-boron compound fertilizer and preparation method thereof

ActiveCN102180723AIncrease demandMeet a small number of needsFertilizer mixturesCalcium EDTANutrient
The invention discloses a calcium-boron compound fertilizer. The raw materials of the calcium-boron compound fertilizer comprise the following components in percentage by weight: 43-70% of calcium chloride, 20-48% of sodium borate, 4-9.1% of citric acid, 0.2-2% of sodium citrate, 0.2-1.5% of EDTA-2Na (ethylene diamine tetraacetic acid-2Na) and 0.2-1.5% of sodium tripolyphosphate. The finished compound fertilizer product comprises the following components in percentage by weight: 15-24% of calcium and 4-10% of boron. The invention also provides a preparation method of the calcium-boron compound fertilizer, which comprises the following steps: (1) respectively weighing the calcium chloride, sodium borate, citric acid, sodium citrate, EDTA-2Na and sodium tripolyphosphate; (2) grinding every raw material into granules by using a grinder, and passing the granules through a 50-mesh screen for later use; (3) after grinding, respectively adding the calcium chloride, EDTA-2Na, sodium tripolyphosphate, and part of citric acid and sodium citrate into a V-shaped mixing machine with a jacket, and stirring for 20 minutes, wherein in the stirring process, the humidity is controlled at 1-2%, and the temperature is controlled at 120-150 Fahrenheit degrees; (4) adding the sodium borate, and stirring for 20 minutes while continuing keeping the temperature and humidity; and (5) regulating the pH value to 3-6 with the citric acid and sodium citrate. Calcium and boron in the fertilizer are scientifically proportioned to obtain the fertilizer with rich nutrients, and the fertilizer can be used for producing excellent fruits and crops.
Owner:凡美(广州)农业科技有限公司

Method for synchronously displaying Fahrenheit temperature and air conditioning system

The invention provides a method for synchronously displaying Fahrenheit temperature. The method comprises the following steps that all display parts receive a centigrade temperature value transmitted by a communication bus; Fahrenheit temperature values corresponding to the received centigrade temperature value are displayed according to the states of a transformation flag bit set in the communication protocol of the communication bus; if the state of the transformation flag bit in the communication protocol is zero, the smaller Fahrenheit temperature value corresponding to the centigrade temperature value is displayed; if the state of the transformation flag bit in the communication protocol is one, the larger Fahrenheit temperature value corresponding to the centigrade temperature value is displayed. The invention further provides an air conditioning system. According to the method for synchronously displaying the Fahrenheit temperature and the air conditioning system, the problem that display is unsynchronized caused by the phenomenon that the same centigrade temperature integral value corresponds to two Fahrenheit temperature integral values is solved; meanwhile, bytes needed by the transformation flag bit which is additionally set in the communication protocol are less, and therefore the expansion of the communication protocol can be conveniently achieved.
Owner:GREE ELECTRIC APPLIANCES INC

Braze welding heating furnace of aluminum alloy plate-fin heat exchanger and heating partitioning and control methods

The invention discloses a braze welding heating furnace of an aluminum alloy plate-fin heat exchanger and heating partitioning and control methods. The braze welding heating furnace comprises a horizontal furnace body, wherein a support for placing a workpiece to be brazed is arranged in the furnace body, and a heating device is also arranged in the furnace body and comprises at least four heating areas which are arranged around the position of the workpiece to be brazed in the furnace body. The heating partitioning method comprises the following steps of: partitioning the heating areas on left and right sides of a heating space into upper subareas, middle subareas, lower subareas and eight loops for control, wherein totally 48 heaters are arranged on two side surfaces; and partitioning the heating areas on the top and at the bottom into eight loops according to an eight-loop partitioning mode for control, wherein in one subarea, totally 16 heaters are arranged on the top and at the bottom; and the heating control method comprises the following steps of: dividing the braze welding into three major stages, and subdividing the major stages into thirteen small stages, wherein the first stage belongs to baking and is started from normal temperature until the central temperature of the workpiece is 650 Fahrenheit degrees, the second stage is performed until the central temperature of the workpiece is 1,000 Fahrenheit degrees, and the third stage is performed until the central temperature of the workpiece meets a technological requirement. The braze welding heating furnace has the characteristics of energy saving, high performance and capability of realizing automatic braze welding of a large-volume plate-fin heat exchanger, and has excellent control performance.
Owner:HANGZHOU HANGYANG

Fountain

A modular fountain assembly for controlling the temperature and flow of viscous fluid with a melting point between ambient and approximately 150 degrees Fahrenheit is disclosed. The modular assembly for controlling the heating and flow of fluid includes an enclosed controlling base and an upper recirculation module having a detachable lower basin, one or more modular tubular sections, a small high basin on top of the highest tubular section, an Archimedes screw of a set pitch dimension to facilitate the flow of the fluid from the lower reservoir to the small high reservoir atop the tubular section or sections, and a series of circular tiers atop each tubular section. The lower basin is attached to the controlling base using mechanical or electro mechanical support structures. The controlling base provides rotational force for the Archimedes screw at variable rotational speeds to drive the fluid upward within the modular tubes as well as a heating sub module. The lower basin has an upper bowl and a lower pool of fixed set depth with an opening to permit a drive shaft attach to the Archimedes screw. The circular base controls the temperature of the fluid using a temperature probe protruding from the lower base into the lower basin. The bottom modular tube attaches to one or more vertical support structures that extends from the controlling base thru the lower reservoir. The circular tiers are held stationary between modular tube sections or between the highest tubular section and the high basin.
Owner:JAFFE MARTIN J

Method for predicting cold filter plugging point of light diesel oil based on blending index concept

The invention relates to a method for predicting the cold filter plugging point of light diesel oil based on a blending index concept. The method comprises the following steps: 1, cold filter plugging point unit transformation: transforming the unit of the cold filter plugging point of light diesel oil to Fahrenheit degree from Celsius degree; 2, cold filter plugging point volume blending index solving: solving through utilizing the blending volumes and the cold filter plugging point Fahrenheit degrees of all component oils to obtain the cold filter plugging point volume blending indexes of all the component oils; 3, light diesel oil cold filter plugging point calculation: adding the cold filter plugging point volume blending indexes of all components and the cold filter plugging point Fahrenheit degrees of all the components to obtain the cold filter plugging point Fahrenheit degree of the light diesel oil; and 4, light diesel oil cold filter plugging point calculation: calculating through using the cold filter plugging point Fahrenheit degree of the light diesel oil to obtain the Celsius degree. The method allows the blending effect of the light diesel oil to be described through a parameter, and the blending effects of all the component oils to be conveniently changed through correcting the parameter against different crude oils and different processing technologies, so the cold filter plugging point prediction adaptability of the light diesel oil is guaranteed.
Owner:PETROCHINA CO LTD +1
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