Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997
The causes of deficiency of constant temperature and humidity test chamber and exhaust
Compressor is carried out in the constant temperature and humidity test, key components of the refrigeration compressor by specific job responsibilities is to increase the working pressure, working pressure the breath to mention to the exhaust pressure of work. Insufficient displacement is one of the most very prone to the common faults of the compressor, the constant temperature and humidity test chamber why exhaust shortage? Here let's go to know: 1, air inlet filter common faults: scaling blocking, reduce emissions; Breathing pipe is too long, the small, leading to a frictional resistance to expand harm to breath supplies, to clean up the filter in time. 2, compressor speed than reduce reduce emissions: air compressor, something is wrong because of the air compressor capacity is according to certain average elevation design, breathing, temperature and environmental humidity, when it is applied in the above mentioned specifications in plateau area, the respiratory pressure reducing, etc. , must reduce the displacement. 3, cylinder, piston rod, piston engine damage more serious, deviation, make relevant gap expands, leakage amount, harm to emissions. All belongs to normal damage, need to immediately changing spare parts, such as engine piston, etc. Belongs to install, space is not fit to stay, should according to the engineering drawings to correct, if no engineering drawings, working experience in materials are available, and in view of the piston rod and cylinder along the circle on the gap among them, for cast iron piston rod, the gap value 0, the diameter of the cylinder. 06/100 ~ 0. 09/100; Aluminum profile for the piston rod, the gap for the diameter of the diameter of the gas 0. 12/100 ~ 0. 18/100; Aluminum profile steel piston rod available smaller values of the piston rod. 4, card sets of joint clearance is not tight, resulting in leakage is reduce throughput. The reason is the first card sets of manufacturing joint itself is not in conformity with the provisions; Times may be because when installed, the hydraulic cylinder with sleeve joint management center of the not so good, damage, contusion, cause steam leakage; Generally in the set of joint filling grease, it can have RunHua, sealing, cooling effect. 5, constant temperature and humidity test chamber high pressure valve gate valve between the pump casing and dirt falling into pieces, or other metal materials, cause off doesn't close tightly, produce steam leakage. This is not only harmful emissions, and also harm level between work stress and temperature change, the emergence of this kind of problem may be because it is a manufacturing quality problems, such as pump shell increases, the second is because high pressure gate valves and the pump casing damage is serious, resulting in leakage. 6 the Huang Li, valves and steam strength matching is not very good. Too strong flexibility makes the pump shell open slowly, elastic weaker pump shell off immediately, this not only harm the constant temperature and humidity test chamber supplies, and harms to the ascension of the output power, and its valve pump shell, the service life of the yellow. In addition, will also harm the air pressure and temperature changes. 7, tightens the valve card tight force is not good. Card is not tight, steam leakage, natural too close is not good, can make the valve cover deformation, destruction, general use type is calculated under the clamping force: p = kπ / 4 d2p2, D for valve cavity diameter, P2 to larger air pressure, for more than 1 K value, usually take 1. 5 ~ 2. 5, bottom pressure when K = 1. 5 ~ 2. K = 1 at 0, high pressure. 5 ~ 2. 5. So take K, practice experience is good. Valves with common failures, the cover will be hot, working pressure is abnormal. The interpretation of the above is the lack of constant temperature and humidity test chamber and exhaust, hope can help you, if you want to learn more about information of constant temperature and humidity test chamber, welcome to the online consulting service or call the company service hotline ( Website top right corner) For consultation, we will wholeheartedly provide high quality service for you! Tags: & nbsp constant temperature and humidity test chamber
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