Refrigerator door [Preferred Shandong Huayu] 1, which is also called soil overburden cold cave Cold Kuaonaer cold storage doors, mostly cave arch, a single-hole style, but also form a continuous arch. Generally brick masonry, and some loess cover layer thickness as insulation. Casing used for low temperature cold storage, the foundation should cave in on easy gravel layer of frost or bedrock. Because of its local conditions, local materials, the construction is simple, low cost, durable, etc., to get a larger development in Northwest China. 2, built in stone cave cold generally more hard rock within the overall good refrigerator door installation, generally for lining the inside of cave or spray anchor handling, rock cave covered thickness of not less than 20m. Refrigerator door [preferred] Shandong Huayu cold storage design safety requirements 1. The use of ammonia as a refrigerant cold storage refrigeration system should be built in the surrounding population density smaller place. 2. refrigeration room door on the outside for easy location of the operation, set off the refrigeration compressor power switch, this switch should be able to stop the operation of all refrigeration compressors, and should set the relevant logo. If the machine control panel located within the master control room, each refrigeration compressor should be added next to the button switch. 3. For room ammonia refrigeration system shall be equipped with ventilation equipment accidents; accidents exhaust fan should be explosion-proof motor refrigerator door, when the accident occurred while the refrigeration system was cut off the power supply should be able to ensure a reliable power supply accident exhaust fan. Overload protection should be the role of accident ventilator to signal an alarm system not directly stop the exhaust fan. Accident exhaust fan control button box should Concealed door in ammonia compressor outside wall. 4. in the outdoor condenser, oil separator and other equipment should be fenced to prohibit non-operating personnel to enter pan refrigerator door, and set the logo. When the high-pressure reservoir located outdoors should awning. 5. Cold distribution room shall be provided, and should be as close to the compressor room. 6. ammonia compressor room, high and low voltage power distribution room shall be arranged emergency lighting, lighting duration of not less than 30 minutes. Room lighting selection proof lighting, illumination appropriate for 50-70Lx. 7. ammonia concentration of ammonia compressor room should be installed automatic measuring device, when the ammonia concentration close to 10% of the lower explosive limit, should be able to send an alarm signal. Pan refrigerator door | Qitaihe refrigerator door | Fitch machinery provided by Fitch Machinery Co., Ltd. Shandong. Shandong Huayu Machinery Co., Ltd. (www.huayujxsb.com) (www.huayujxsb.com) strong, credible, Shandong Binzhou industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Fitch machinery and you hand into the brilliant, for a better future! You can also access (www.huayujxsb.com/supply_details_45038640.html), for more information about the company.