Metallic diaphragm wax thermodynamic component for automatic steam trap
A technology of metal diaphragm box and steam trap, which is applied in steam traps, mechanical equipment, etc., can solve the problems of limited range of use and inability to use, and achieve the effects of sensitive response, constant volume change rate, and rapid action
Inactive Publication Date: 2010-09-01
LANZHOU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
It works based on the incompressibility of solids and liquids and the use of the physical properties of the volume of the working medium (the mixture of temperature-sensing wax and metal copper powder) in the sealed container that changes with temperature. There is a certain hysteresis in the temperature transfer within the heat transfer area, and the operating temperature of the fluororubber bladder and diaphragm can be 100-180 °C, so the wax-type thermodynamic element can only be used in thermostatic steam traps, which are generally low In the case of 100 ° C, it cannot be used at higher temperatures, so the scope of use is greatly limited
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[0008] Such as figure 1 , figure 2 As shown, the upper shell 1 is a thickened nearly hemispherical member, the sealing sheet 2 and the diaphragm 3 are both disc-shaped members, and the sealing sheet 2 and the diaphragm 3 are both coaxial with the axis OO' of the upper shell 1, A circular hole is opened at the center of the sealing sheet 2, and the edge of the diaphragm 3 is connected to the edge of the circular hole at the center of the sealing sheet 2. The plunger 4 is installed under the diaphragm 3 and is aligned with the axis OO of the upper shell 1. ′Coaxial, the edge of the lower shell 5 in the shape of a wafer is connected with the edge of the upper shell 1, the lower shell 5 is coaxial with the axis OO' of the upper shell 1, and a circular hole is opened at the center of the lower shell 5. The diameter of is slightly larger than that of the plunger 4, and the enclosed space formed by the inner wall of the upper shell 1 and the sealing sheet 2 and the diaphragm 3 is fil...
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The invention discloses a metallic diaphragm wax thermodynamic component for an automatic steam trap, which is characterized in that: an upper shell 1 is a thickened near-hemispherical component, and a sealing strip 2 and a diaphragm 3 are both disc-shaped components and coaxial with the axis OO' of the upper shell 1; the central position of the sealing strip 2 is provided with a circular hole, and the edge of the diaphragm 3 is connected with the edge of the circular hole at the central position of the sealing strip 2; a plunger piston 4 is arranged below the diaphragm 3 and coaxial with theaxis OO' of the upper shell 1; and the edge of a disc-shaped lower shell 5 is connected with the edge of the upper shell 1, the lower shell 5 is coaxial with the axis OO' of the upper shell 1, and the central position of the lower shell 5 is provided with a circular hole, and the diameter of the circular hole is slightly greater than that of the plunger piston 4; and a closed space formed by the inner wall of the upper shell, the sealing strip 2 and the diaphragm 3 is filled with solid temperature-sensitive wax 6.
Description
Technical field [0001] The invention relates to a thermodynamic element for a steam trap. Background technique [0002] As an important secondary energy source, steam has been widely used in various industries, such as petroleum, chemical, textile, medicine, food and other industries. In the entire steam system, in order to improve the thermal efficiency of steam use, steam traps are used extensively. The function of the steam trap is to automatically remove condensed water, air and non-condensable gases on the steam pipe network or steam heating equipment to prevent steam leakage and improve thermal efficiency. In actual use, the saturated steam type metal bellows is commonly used, that is, the heat sensitive liquid is filled in the bellows. However, the saturated steam type metal bellows has some shortcomings. In some special environments The vaporization and volume change rate of the heat-sensitive liquid is easily affected by the surrounding external environment. For exampl...
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IPC IPC(8): F16T1/02
Inventor 李树勋王朝富徐登伟李确
Owner LANZHOU UNIVERSITY OF TECHNOLOGY