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| No.12711270
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Information Name: | Insulation manufacturer compensator bellows _ to _ Hebei billion gold piping |
Published: | 2014-05-30 |
Validity: | 0 |
Specifications: | Limitation |
Quantity: | |
Price Description: | |
Detailed Product Description: | Gold Pipe Manufacturing Co., Ltd. Hebei billion (www.yijinguanjian.com) is located in Cangzhou City, Hebei Province, Yanshan Puwa Industrial Development Zone, Contact: Alan Li Tong works with the bellows used in heating systems, domestic hot water systems and hot water systems must meet the requirements of bellows media using a variety of system requirements, corrosion resistance, uses the following manner: DN65 diameter greater than or equal compensation uses external pressure balanced bellows, less than DN65 compensator using axial double bellows. Each system working pressure: domestic hot water system: 1.0MPa; hot water system: 1.0MPa; heating system: 0.6MPa; spa water quality: underground thermal mineral water cations are mainly Ca2 +, Mg2 +, K +, Na +, NH4 +, which Ca2 + content to 14.0mg / L, the percentage of milliequivalents of 2.4%; Mg2 + content of 11.9mg / L, the percentage of milliequivalents of 3.4%; K + content of 33.3mg / L, the percentage of milliequivalents of 3.0%; Na + content was 605.0 mg / L, the percentage of milliequivalents of 91.1%; NH4 + content is 0.63mg / L, the percentage of 0.1% Meq. ; Underground thermal mineral water main anions Cl-, SO42-, HCO3-, F-, NO3-, Cl-content which is 287.0mg / L bellows, which mEq percentage of 28.0%; SO42-content of 609mg / L, the percentage of milliequivalents of 43.8%; HCO3-content of 439mg / L, the percentage of milliequivalents of 24.9%; F-content of 17.50mg / L, the percentage of milliequivalents of 3.2%; NO3-content is 1.61mg / L, the percentage was 0.1% mEq; domestic hot water wells underground water chemistry type is SO4-Cl-Na stainless steel bellows manufacturers, PH value of 7.76 is neutral alkaline aqueous medium temperature range: 40-70 ° C the amount of compensation for each system: domestic hot water system: L = 15mm; hot water system: L = 10mm; heating system: L = 38mm; plane stability Bellows Bellows comprehensive stress its compressive strength is given by the standard and Weeks can be seen to calculation methods and evaluation criteria stability, strength problems are both reflected. When the bellows design allowable lower life, not only to its integrated meridional stress is high, the hoop stress is relatively high, so quickly into the bellows local plastic deformation, resulting bellows instability. For the internal pressure of the non-metallic bellows bellows prices, displacement and stress in the formation of plastic hinges at the peaks and troughs of the bellows, plus the pressure of stress, bellows quickly produce plane instability. This is the fundamental reason for the low fatigue life of the bellows under conditions of plane buckling displacement high pressure far below the fatigue life of the bellows. For example in the pre-displacement state, namely the bellows when the allowable displacement is 1/2 value of an allowable fatigue life of the bellows 200, which allows the design pressure not reached, the instability of the plane has been generated; XU with the fatigue life of the bellows 1000, the design pressure is reached, the corrugated tube is in a stable state plane, to 1.5 times the design pressure of the bellows is critical failure state; allowable fatigue life of 2000 cycles to meet the design pressure of bellows 1.5 times the bellows is still in the plane steady state. External pressure bellows from a longitudinal section view, the equivalent of a beam under pressure arch, working the bellows in tension, the equivalent of a high arch arch beam reduces its ability to resist buckling natural decrease. When the bellows single wave of displacement is too large, corrugated straight portions inclined so that bellows crest diameter narrowing trend, but the peak ring diameter is determined, in order to coordinate distortion compensation insulation manufacturer, will produce peak collapse, Bellows circumferential instability. In the corresponding standards at home and abroad, about the displacement of the bellows to the external pressure affect the stability of the week were not involved, need to be further explored. |
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Copyright © GuangDong ICP No. 10089450, Pipe Manufacturing Co., Ltd. Hebei billion gold All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 22025 visitor
Copyright © GuangDong ICP No. 10089450, Pipe Manufacturing Co., Ltd. Hebei billion gold All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility