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ugg milano Fully split mechanical seal structure a |
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Fully split mechanical seal structure of reactor
Only the parting surface leakage. However, this can only be paired with each other using a set can not be interchanged. Figure 3 static and dynamic secondary seal ring 2.2.4 installed according to characteristics of mechanical seals, auxiliary seals with rubber material, similar to the structure of the past, the general structure of the form of strips, installed in combination with surface coating,[link widoczny dla zalogowanych], so that as a whole, this structure is to make simple, but there are disadvantages in this seal, the use of the form of plug connector (Figure 4), do not need glue,[link widoczny dla zalogowanych], tape one end to open a round hole at the other end has a small plug, install, simply plug in the round hole on it, without adhesive, although installed in this way is simple, but very difficult to manufacture. Figure 4 auxiliary parameter design of the mechanical seal ring 3 38H ~ UIDMACHINERYVo1.31,[link widoczny dla zalogowanych], No. 8,2003 according to operating parameters, the mechanical face seal design is a single, non-balanced mechanical seal, spring for the more spring in the form, which is suitable for full profile structural characteristics of mechanical seals, the sealing liquid medium pressure is low, speed is also low, load is not sealed, so the design of the spring pressure is relatively high number, calculated by the design parameters of the following main seal: Shaft: Db = 114.3mrn friction sealing surface diameter: Dl = 130mm diameter sealing surface friction : D2 = 139mm spring work load: P = 23N, spring pressure: P = 0.38MPa face specific pressure: = 0.53MPa4 test developed after the completion of the mechanical seal, the whole profile in order to further verify the installation of mechanical seal performance In the special Kettle mechanical seal test rig tested. 4.1 Size of authentication verification seal installation all mechanical seal installation profile design is reasonable size is an important test, by sealing the test stand installation, confirmed the split mechanical seal parts and the whole reactor axis can be torn off and the case without installed directly in place, and fully meet the design size. To first determine the feasibility of the seal structure. 4.2 The performance of the sealing performance test results in Table 2 reactor pressure parameter name value (MPa) O. 05 Speed (r / rain) '80 ambient temperature, atmospheric pressure without leakage of revenue thistle (occasionally bubbles escape) Note: The sealing liquid is 2o turbine oil. Sealing performance test is to verify the mechanical seal design and the design parameters of the key test, we had it for 5 hours of running tests, test results shown in Table 2. The results can be seen from the fully split mechanical seal fully meet the design requirements. Pressure in the reactor increased to 0.1blPa, the bubbles escape more, the pressure increased to 0.15MPa, a large number of bubbles escape. 5, the practical application of Hefei General Machinery Research Institute trial of the fully split mechanical seal in Anqing Petrochemical companies to import the actual use of the polymerization reactor, we found that really easy to install, just remove the original seal can be replaced, without removal other components, the use of the actual operation,[link widoczny dla zalogowanych], the operating normally stable sealing performance and service life basically reached the level of imported products. 6 Conclusion (1) fully split mechanical seal generally used for the host device disassembly difficult conditions, and its demolition of this structure makes the host can not be sealed in place in the external. (2) The seal of the successful development of future national research and development of fully split mechanical seal has accumulated some experience. (3) tests to prove: fully split mechanical seal for operating parameters (pressure) conditions of low use, should be further research to improve its operating parameters. Author: Shao Jiaxing (1966), male, engineer, graduate. Address: 24600l Anqing City, Anhui Anqing Branch of Sinopec supplies parts supply center room. (Continued from page 3) [References [1] Stelmm ~ ffAJ. ceandAxialFlowPumps [M]. NewYork: JohnWiley & Sons. 1957. [2] where the relevant awake. Theory and design of the pump EM]. Beijing: Mechanical Industry Press, 1986. [3] Linda Hua, Hu Zeming, Xuedun Song. Multi-stage centrifugal pump impeller cutting experiments [J]. Pump Technology, 1985, (3): 26 ~ 29. [4] Wen-Guang Li, et al. Centrifugal pump impeller cutting experiment [J]. Pump technology, 2OOO, (5): 7 ~ l1. [5] Wen-Guang Li, et al. Handling viscous number of leaves on the performance of centrifugal pump [J]. Pump Technology, 2000,[link widoczny dla zalogowanych], (4): 3 ~ 6. About the Author: The Evergreen graduate, is mainly engaged in transportation technology research complex fluids. Address: City, Gansu 730050, Lanzhou, Gansu University of Technology Institute of Fluid Power and Control of Energy and Power Engineering.
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