{"id":5739,"date":"2016-10-28T14:01:09","date_gmt":"2016-10-28T12:01:09","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/en\/?p=5739"},"modified":"2016-10-28T14:01:09","modified_gmt":"2016-10-28T12:01:09","slug":"liquid-ring-pumps-for-vacuum","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/en\/5739\/liquid-ring-pumps-for-vacuum\/","title":{"rendered":"Liquid-ring pumps for vacuum"},"content":{"rendered":"

Industrial processes make large employ of a particular kind of pumps called liquid-ring pumps<\/a>, a mechanical device allowing to obtain vacuum<\/strong> or significantly compressed-gas chambers.<\/p>\n

These pumps offer high performances and efficiency, but using rotating mechanical parts they generate an amount of thermal energy<\/strong>, dissipated in the liquid-ring increasing the fluid\u2019s temperature. In order to keep the pump working efficiently, the water employed in the liquid-ring pump to create the vacuum requires a proper temperature control<\/strong>.<\/p>\n

\"liquid-ring<\/a>
\nLiquid cooling<\/strong> in a liquid-ring pump is achieved with heat exchangers<\/a>, usually fed with cooling water.<\/p>\n

Plate heat exchangers<\/a> in this application allow to reduce assemblies sizes, achieving an excellent thermal efficiency<\/strong>, keeping the liquid-ring at the suitable temperature by using water at medium-low temperature, meaning that the cooling can be achieved by employing water provided by cooling towers<\/a> or dry coolers<\/a>.<\/p>\n

A couple of topics must be addressed during the engineering of heat exchangers for liquid-ring pumps applications:<\/p>\n

– low flow rate drops
\n– kind of industry of application<\/p>\n

The first point is important to avoid pump\u2019s overload, and the second one because of industries and processes with the presence of dirt, both in working fluids and environment. In this case, anti-clog heat exchangers must be preferred making easier cleaning and maintenance<\/strong> activities.<\/p>\n","protected":false},"excerpt":{"rendered":"

Industrial processes make large employ of a particular kind of pumps called liquid-ring pumps, a mechanical device allowing to obtain […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[64,61,65,63,87,113,473,84],"tags":[648,127,647,258,649,138,645,279,558,235,382,646],"yoast_head":"\nLiquid-ring pumps for vacuum - Tempco Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tempco.it\/blog\/en\/5739\/liquid-ring-pumps-for-vacuum\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Liquid-ring pumps for vacuum - Tempco Blog\" \/>\n<meta property=\"og:description\" content=\"Industrial processes make large employ of a particular kind of pumps called liquid-ring pumps, a mechanical device allowing to obtain […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tempco.it\/blog\/en\/5739\/liquid-ring-pumps-for-vacuum\/\" \/>\n<meta property=\"og:site_name\" content=\"Tempco Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/tempco.srl\" \/>\n<meta property=\"article:published_time\" content=\"2016-10-28T12:01:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2016\/10\/Tempco-liquid-ring-pump-200x300.jpg\" \/>\n<meta name=\"author\" content=\"Marco Zambelli\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Tempco_it\" \/>\n<meta name=\"twitter:site\" content=\"@Tempco_it\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Marco Zambelli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.tempco.it\/blog\/en\/5739\/liquid-ring-pumps-for-vacuum\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.tempco.it\/blog\/en\/5739\/liquid-ring-pumps-for-vacuum\/\"},\"author\":{\"name\":\"Marco Zambelli\",\"@id\":\"https:\/\/www.tempco.it\/blog\/#\/schema\/person\/888443da8bdce0582bcb917053553fec\"},\"headline\":\"Liquid-ring pumps for vacuum\",\"datePublished\":\"2016-10-28T12:01:09+00:00\",\"dateModified\":\"2016-10-28T12:01:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.tempco.it\/blog\/en\/5739\/liquid-ring-pumps-for-vacuum\/\"},\"wordCount\":216,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.tempco.it\/blog\/#organization\"},\"keywords\":[\"anti-clog\",\"cooling\",\"cooling towers\",\"dry cooler\",\"heat dissipation\",\"heat exchangers\",\"liquid-ring pump\",\"maintenance\",\"process industry\",\"temperature control\",\"thermal energy\",\"vacuum pumps\"],\"articleSection\":[\"Cooling\",\"Energia Termica @en\",\"Evaporative Towers\",\"Heat exchangers\",\"Maintenance\",\"plate heat exchanger\",\"Scambiatori a piastre\",\"thermal energy\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.tempco.it\/blog\/en\/5739\/liquid-ring-pumps-for-vacuum\/\",\"url\":\"https:\/\/www.tempco.it\/blog\/en\/5739\/liquid-ring-pumps-for-vacuum\/\",\"name\":\"Liquid-ring pumps for vacuum - 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