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    Focus on petrochemical storage and transportation, fire safety for 20 years
    Products Show
    Petrochemical storage and transportation equipment
    Petrochemical storage and transportation equipment Petrochemical storage and transportation equipment
    Tank accessories
    Tank accessories Tank accessories
    Filter
    Filter Filter
    Spray spray fire cooling device
    Spray spray fire cooling device Spray spray fire cooling device
    Special equipment for external floating roof tank
    Special equipment for external floating roof tank Special equipment for external floating roof tank
    Under tank sampler
    Under tank sampler Under tank sampler
    All-weather respiration valve
    All-weather respiration valve

    Structure and working principle all weather breathing valve structure: The valve seat is composed of a rigid framework and a fluorine diaphragm. The rigid framework is stamped from 1Cr18Ni9Ti alloy steel plate in a micro arch shape, and there is an annular groove along the periphery to be sealed by the diaphragm as an air pad. The fluorine diaphragm is tightened on the concave surface of the framework with a metal clamp to form a contact surface with the valve seat. The valve seat is made of polytetrafluoroethylene, its diameter is equivalent to that of the skeleton groove, and the valve port has a large chamfer. The quality of the valve disc is determined according to the design allowable pressure of the oil tank and the diameter of the valve disc. If necessary, it can be adjusted by counterweight principle of all-weather breathing valve: When the valve disc is freely placed on the valve seat, the fluorine diaphragm is slightly concave to the air cushion groove under the gravity of the valve disc. When the pressure difference inside and outside the tank increases, the valve disc rises slightly, and the diaphragm remains well sealed with the valve seat by its own elasticity. Until the whole valve disc jumps away from the valve seat, the diaphragm will rebound and gradually return to its original stateBecause the fluorine diaphragm has good oil resistance and hydrophobic performance, and the contact angle between the diaphragm and the valve seat is large, it is difficult for water vapor to condense and remain at the valve port. At the same time, this contact mode can effectively prevent micro differential pressure leakageDN2532405080100150200250300L240260290290420420535700835950H270290320320470470540620700780

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    Hydraulic safety valve
    Hydraulic safety valve

    Specification and size specification drawing No. installation dimension (mm) D1DLHdnDN50LTHF-Y-1Ø 110Ø 140220424Ø 144DN80LTHXF-Y-2Ø 150Ø 150220424Ø 184DN100LTHF-Y-3Ø 170Ø 170500605Ø 184DN150LTHF-Y-4Ø 225Ø 225650705Ø 188DN200LTHF-Y-5Ø 280Ø 280900705Ø 188DN250LTHF-Y-6Ø 335Ø 3351053855Ø 1812Installation and maintenance precautions1. Various safety valves shall be installed vertically2. There shall be no resistance at the outlet of the safety valve to avoid pressure3. The safety valve shall be specially tested before installation and its tightness shall be checked4. The safety valve in use shall be inspected regularlyThere are two common faults: one is valve body damage, corrosion or leakage; Second, since part of the liquid seal oil volatilizes during use, and part of the water vapor, oil vapor and impurities in the tank will condense into it, its quantity, quality and weight may change after long-term use, thus affecting the accuracy of pressure controlStrengthen the inspection of hydraulic safety valve during daily inventory inspection and operation. If it is necessary to check whether the valve body has abnormal changes, whether the valve body has leakage and whether the height of liquid sealing oil meets the regulations, sealing liquid shall be added if necessary; Check whether the hydraulic safety valve operates normally when the oil tank is in and out; Check whether the sealing net is intact and unblockedSelection of hydraulic safety valve1. The type of hydraulic safety valve shall meet the requirements of installation environment and shall be determined according to the application scope of hydraulic safety valve2. The diameter of the hydraulic safety valve shall be compatible with the breathing volume of the oil in and out of the oil tank. Generally, the diameter can be the same as that of the mechanical breathing valve used in the configuration3. The oil filling height in the hydraulic safety valve shall meet the control pressure requirementsManufacturing acceptance standard of the product: according to SY / t0525 1-93。

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    Brand Center
    National High-Tech Enterprise
    about

    Honghu Lantian Anhuan Energy Saving Equipment Co., Ltd. is located in Honghu City, a land of fish and rice in the Jianghan Plain. It is adjacent to the world-famous Yangtze River on the left, the famous Honghu Lake on the right, Yueyang on the top and Wuhan on the bottom. Expressways such as Beijing-Zhuhai, Shanghai-Rongjiang, Yanjiang, Suiyue and Hanhong pass through the border, and the land and water transportation is very developed.

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      The company occupies a total area of about 40000m2

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      Processing workshop m2

    • 0 Customers

      Fixed 560 industry customers

    • 0 Series

      A total of 6 product series

    Engineering Case
    • Oil and Gas Engineering

      Oil and Gas Engineering

      The company undertakes the R&D and manufacturing of all related new products from the petrochemical storage and transportation, safety and fire protection design and research departments.

    • Chemical engineering

      Chemical engineering

      The company undertakes the R&D and manufacturing of all related new products from the petrochemical storage and transportation, safety and fire protection design and research departments.

    • Pharmaceutical fertilizer

      Pharmaceutical fertilizer

      The company undertakes the R&D and manufacturing of all related new products from the petrochemical storage and transportation, safety and fire protection design and research departments.

    • Coal chemical industry

      Coal chemical industry

      The company undertakes the R&D and manufacturing of all related new products from the petrochemical storage and transportation, safety and fire protection design and research departments.

    • Port terminal

      Port terminal

      The company undertakes the R&D and manufacturing of all related new products from the petrochemical storage and transportation, safety and fire protection design and research departments.

    They chose Honghu Blue Sky
    Sinopec, PetroChina, CNOOC, Sinochem, China Aviation Oil, National Energy, National Pipeline Network, Yanchang Petroleum and other well-known enterprises are qualified suppliers for network access.
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