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Pressure difference standard for negative pressure weighing cover(negative pressure weighing chambe）
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Pressure difference standard for negative pressure weighing cover (negative pressure weighing chamber) A negative pressure weighing cover (negative pressure weighing chamber) is a kind of equipment widely used in chemical, pharmaceutical, food, and other industries. Negative pressure weighing cover is mainly used for weighing dust and other particulate matter. To ensure the efficient and safe operation of the equipment, this article will introduce in detail the pressure difference standards of the negative pressure weighing cover (negative pressure weighing chamber). 1. Overview of negative pressure weighing cover (negative pressure weighing room) The negative pressure weighing cover (negative pressure weighing chamber) uses negative pressure to isolate the weighing area from the outside world and maintain a negative pressure state, thereby effectively preventing the leakage of dust and other particles and ensuring a clean and safe operating environment. The equipment is mainly composed of the upper cover body, lower cover body, skylight, observation window, dust collector, and other main components. 2. Pressure difference standard of negative pressure weighing cover (negative pressure weighing room) Preparation before operation: Before using the negative pressure weighing cover (negative pressure weighing room), ensure that the equipment is in normal condition and check whether all components are intact, especially the upper cover body, lower cover body, skylight, observation window, dust collector, etc. The main components. Operation process: When starting the negative pressure weighing cover (negative pressure weighing room), the negative pressure should be gradually increased to avoid sudden excessive negative pressure that will affect the equipment and operators. During the weighing process, pay attention to the pressure difference in the weighing cover to ensure that it is within the qualified range. Post-operation treatment: After use, the negative pressure weighing cover (negative pressure weighing chamber) should be closed first, and then the negative pressure should be gradually reduced until the equipment stops running. 3. Pressure difference detection and maintenance of negative pressure weighing cover (negative pressure weighing room) Regularly detect the pressure difference of the negative pressure weighing cover (negative pressure weighing chamber) to ensure that it meets the standard requirements. During detection, professional equipment such as differential pressure gauges can be used for measurement. If the pressure difference of the negative pressure weighing cover (negative pressure weighing chamber) is found to be abnormal, stop the machine immediately for inspection, find out the cause, and carry out repairs. Reasons may include dust collector filter blockage, fan failure, etc. Regularly clean the dust collector filter element to ensure the dust removal effect. Blockage of the filter element will cause the negative pressure to increase and affect the weighing accuracy. Regularly check the wear and tear of various components of the negative pressure weighing cover (negative pressure weighing chamber). If there is any damage, replace it in time. 4. Summary The pressure difference standard of the negative pressure weighing cover (negative pressure weighing chamber) is an important indicator to ensure the normal operation of the equipment and weighing accuracy. Operators should be familiar with the working principles and operating methods of the negative pressure weighing cover (negative pressure weighing chamber), operate according to the pressure difference standards, and perform regular inspection and maintenance to ensure the safe and efficient operation of the equipment. |
