{"id":1336,"date":"2024-09-25T15:56:15","date_gmt":"2024-09-25T07:56:15","guid":{"rendered":"https:\/\/www.tflequip.com\/?p=1336"},"modified":"2024-09-25T15:58:45","modified_gmt":"2024-09-25T07:58:45","slug":"factors-affecting-the-performance-of-self-priming-pumps","status":"publish","type":"post","link":"https:\/\/www.tflequip.com\/sk\/factors-affecting-the-performance-of-self-priming-pumps\/","title":{"rendered":"Faktory ovplyv\u0148uj\u00face v\u00fdkon samonas\u00e1vac\u00edch \u010derpadiel"},"content":{"rendered":"<p>Samonas\u00e1vacie odstrediv\u00e9 \u010derpadl\u00e1 vyu\u017e\u00edvaj\u00fa princ\u00edp tlaku vzduchu cez komoru na uskladnenie vody, aby dosiahli \u00fa\u010del samonas\u00e1vania po\u010das celej \u017eivotnosti, potom ovplyv\u0148uj\u00fa v\u00fdkon samonas\u00e1vac\u00edch odstrediv\u00fdch \u010derpadiel, ktor\u00fd sa prejavuje najm\u00e4 v akom mieste? Odr\u00e1\u017ea sa najm\u00e4 v nasleduj\u00facich \u0161iestich aspektoch.<\/p>\n<p>1. Stanovenie objemu z\u00e1sobn\u00edka kvapaliny a v\u00fd\u0161ky z\u00e1sobn\u00edka kvapaliny<\/p>\n<p>Z\u00e1sobn\u00fd objem kvapaliny sa vz\u0165ahuje na objem kvapaliny, ktor\u00fd m\u00f4\u017ee by\u0165 uskladnen\u00fd v telese \u010derpadla po zastaven\u00ed \u010derpadla, t. j. objem telesa \u010derpadla pod spodn\u00fdm bodom sacieho vstupu \u010derpadla. Tento objem je hlavne s\u00fa\u010das\u0165ou tlakovej komory a komory na separ\u00e1ciu plynu a kvapaliny. Objem z\u00e1sobn\u00edka kvapaliny by nemal by\u0165 men\u0161\u00ed ako polovica projektovan\u00e9ho prietoku \u010derpadla v sekund\u00e1ch [napr. Ak je objem z\u00e1sobn\u00edka kvapaliny pr\u00edli\u0161 mal\u00fd [to znamen\u00e1, \u017ee v \u010derpadle je ulo\u017een\u00e1 pr\u00edli\u0161 mal\u00e1 kvapalina], sp\u00f4sob\u00ed to samonas\u00e1vanie. \u010casom sa dokonca m\u00f4\u017ee sta\u0165, \u017ee sa \u010derpadlo nebude m\u00f4c\u0165 samonas\u00e1va\u0165; \u010derpadlo sa tak stane objemn\u00fdm. Okrem dostato\u010dn\u00e9ho objemu z\u00e1sobn\u00edka kvapaliny mus\u00ed by\u0165 zabezpe\u010den\u00e1 aj ur\u010dit\u00e1 v\u00fd\u0161ka z\u00e1sobn\u00edka kvapaliny. Akumula\u010dn\u00e1 v\u00fd\u0161ka kvapaliny je v\u00fd\u0161ka od spodn\u00e9ho bodu nas\u00e1vania \u010derpadla po stred obe\u017en\u00e9ho kolesa, ktor\u00e1 sa zvy\u010dajne pova\u017euje za pribli\u017ene rovnak\u00fa ako polomer obe\u017en\u00e9ho kolesa.<\/p>\n<p>2. Ur\u010denie objemu komory na separ\u00e1ciu plynu a kvapaliny a v\u00fd\u0161ky v\u00fdstupu z telesa \u010derpadla<\/p>\n<p>Oddelenie plynu a kvapaliny sa vz\u0165ahuje na \u010das\u0165 mimo tlakovej komory telesa \u010derpadla. \u010c\u00edm v\u00e4\u010d\u0161\u00ed je objem, t\u00fdm lep\u0161\u00ed je \u00fa\u010dinok separ\u00e1cie plynu a kvapaliny a t\u00fdm r\u00fdchlej\u0161ia je separ\u00e1cia. Ke\u010f je v\u0161ak objem komory na separ\u00e1ciu plynu a kvapaliny dostato\u010dne ve\u013ek\u00fd, \u00fa\u010dinok sa zv\u00fd\u0161i. Nie je to zrejm\u00e9. Naopak, sp\u00f4sob\u00ed to, \u017ee teleso \u010derpadla bude objemn\u00e9, tak\u017ee komora na separ\u00e1ciu plynu a kvapaliny m\u00e1 lep\u0161iu hodnotu objemu. Pod\u013ea existuj\u00facich sk\u00fasenost\u00ed je jej hodnota rovnak\u00e1 alebo o nie\u010do v\u00e4\u010d\u0161ia ako objem z\u00e1sobn\u00edka kvapaliny. Za podmienky zabezpe\u010denia kapacity komory na odde\u013eovanie plynu a kvapaliny sa \u010derpadlo V\u00fd\u0161ka od v\u00fdstupu telesa po stredov\u00fa \u010diaru obe\u017en\u00e9ho kolesa sa m\u00f4\u017ee ur\u010di\u0165 po\u010das kreslenia na z\u00e1klade objemu z\u00e1sobn\u00edka kvapaliny a objemu komory na odde\u013eovanie plynu a kvapaliny.<\/p>\n<p>3. Stanovenie prietoku kvapaliny v pretla\u010dovacej komore<\/p>\n<p>Prietok kvapaliny vo v\u00fdtla\u010dnej komore samonas\u00e1vacieho \u010derpadla odstrediv\u00e9ho typu je ni\u017e\u0161\u00ed ako prietok kvapaliny vo v\u00fdtla\u010dnej komore v\u0161eobecn\u00e9ho odstrediv\u00e9ho \u010derpadla, ktor\u00fd sa pribli\u017ene rovn\u00e1 80-90% prietoku kvapaliny vo v\u00fdtla\u010dnej komore v\u0161eobecn\u00e9ho odstrediv\u00e9ho \u010derpadla.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-1337 size-medium\" title=\"\u79bb\u5fc3\u81ea\u5438\u6cf5\" src=\"https:\/\/www.tflequip.com\/wp-content\/uploads\/2024\/09\/-e1727251049423-300x279.jpg\" alt=\"\u79bb\u5fc3\u81ea\u5438\u6cf5\" width=\"300\" height=\"279\" \/><\/p>\n<p>4. Ur\u010denie v\u00f4le medzi jazykom priehradky vytl\u00e1\u010dacej komory a obe\u017en\u00fdm kolesom<\/p>\n<p>Pri odstrediv\u00fdch samonas\u00e1vac\u00edch \u010derpadl\u00e1ch m\u00e1 ve\u013ek\u00fd vplyv na samonas\u00e1vac\u00ed v\u00fdkon medzera medzi deliacim perom a obe\u017en\u00fdm kolesom. \u010c\u00edm men\u0161ia je medzera medzi deliacim perom a obe\u017en\u00fdm kolesom v hornej tlakovej komore, t\u00fdm krat\u0161\u00ed je \u010das samonas\u00e1vania. T\u00e1to medzera sa zvy\u010dajne berie z vonkaj\u0161ieho mie\u0161ania; Mix and take. Ak je navrhnut\u00e9 ako dvojit\u00e1 \u0161pir\u00e1lov\u00e1 komora, medzeru medzi jazykom spodnej tlakovej komory a obe\u017en\u00fdm kolesom mo\u017eno zvy\u010dajne ur\u010di\u0165 pod\u013ea met\u00f3dy ur\u010denia medzery medzi jazykom tlakovej komory a obe\u017en\u00fdm kolesom v\u0161eobecn\u00e9ho odstrediv\u00e9ho \u010derpadla, to znamen\u00e1, \u017ee spodn\u00fd jazyk sa nach\u00e1dza na z\u00e1kladnom kruhu \u0161pir\u00e1lovej komory.<\/p>\n<p>5. Ot\u00e1\u010danie zadn\u00e9ho krytu obe\u017en\u00e9ho kolesa<\/p>\n<p>Pri odstrediv\u00fdch samonas\u00e1vac\u00edch \u010derpadl\u00e1ch s vonkaj\u0161\u00edm mie\u0161an\u00edm, ke\u010f je vonkaj\u0161ia obvodov\u00e1 r\u00fdchlos\u0165 obe\u017en\u00e9ho kolesa men\u0161ia ako . Ve\u013ekos\u0165 ot\u00e1\u010dania nem\u00f4\u017ee by\u0165 pr\u00edli\u0161 ve\u013ek\u00e1, inak sa v\u00fdrazne zn\u00ed\u017ei zdvih a \u00fa\u010dinnos\u0165 \u010derpadla. Ke\u010f je priemer zadn\u00e9ho krytu obe\u017en\u00e9ho kolesa skr\u00e1ten\u00fd, horn\u00fd jazyk je zosilnen\u00fd, aby sa zabr\u00e1nilo cirkul\u00e1cii kvapaliny s bublinkami na skr\u00e1tenom zadnom kryte a ovplyv\u0148ovaniu samonas\u00e1vacieho \u00fa\u010dinku.<\/p>\n<p>6. Plocha vratn\u00e9ho otvoru<\/p>\n<p>Pri samonas\u00e1vac\u00edch odstrediv\u00fdch \u010derpadl\u00e1ch s vn\u00fatorn\u00fdm mie\u0161an\u00edm m\u00e1 plocha vratn\u00e9ho otvoru ve\u013ek\u00fd vplyv na v\u00fdkon samonas\u00e1vania. Ve\u013ek\u00e1 plocha sp\u00f4sobuje, \u017ee sa do vstupu obe\u017en\u00e9ho kolesa vracia cez vratn\u00fd otvor viac kvapaliny, tak\u017ee \u010das samonas\u00e1vania je kr\u00e1tky, ale stupe\u0148 samonas\u00e1vania je ve\u013ek\u00fd. Zn\u00ed\u017een\u00e9; \u010d\u00edm men\u0161ia je plocha vratn\u00e9ho otvoru, t\u00fdm dlh\u0161\u00ed bude \u010das samonas\u00e1vania a \u010d\u00edm v\u00e4\u010d\u0161\u00ed bude stupe\u0148 samonas\u00e1vania, t\u00fdm vy\u0161\u0161ia bude v\u00fd\u0161ka podtlaku. Na z\u00e1klade uveden\u00e9ho sa pri ur\u010dovan\u00ed plochy vratn\u00e9ho otvoru musia komplexne zv\u00e1\u017ei\u0165 po\u017eiadavky na \u010das samonas\u00e1vania a v\u00fd\u0161ku samonas\u00e1vania.<\/p>","protected":false},"excerpt":{"rendered":"<p>Self-priming centrifugal pumps use the principle of air pressure through the water storage chamber to achieve a priming life-long self-priming purpose, then affect the performance of self-priming centrifugal pumps is mainly reflected in what place? Mainly reflected in the following six aspects. 1. Determination of liquid storage volume and liquid storage height The liquid storage [&hellip;]<\/p>","protected":false},"author":4,"featured_media":1337,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/posts\/1336"}],"collection":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/comments?post=1336"}],"version-history":[{"count":0,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/posts\/1336\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/media\/1337"}],"wp:attachment":[{"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/media?parent=1336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/categories?post=1336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tflequip.com\/sk\/wp-json\/wp\/v2\/tags?post=1336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}