CS226512B1

CS226512B1 - Safety liquid column manometer

Info

Publication number: CS226512B1
Application number: CS42481A
Authority: CS
Inventors: Karol Ing Csc Fancovic
Original assignee: Fancovic Karol
Priority date: 1981-01-21
Filing date: 1981-01-21
Publication date: 1984-04-16

Description

Predmetom vynálezu je bezpečnostný kvapalinový manometer.The subject of the invention is a safety fluid pressure gauge.

Na meiranie tlakov v rozpatí od atmosferického tlaku po vákuum sa používajú obvykle kvapalinové manometre tvaru písmena U pracujúce na principe vytvárania; Toricelliho vákua; najčastejšie s ortutovou náplňou. Plnenie takéhoto manometra měrnou kvapallnou je zdíhavé, vyžaduje dávku zručnosti. Vniknutie bubliny plynu do uzavretého ramena manometra skreslí hodnoty meraných výsledkov. Pri náhlom vniknutí tlaku do manometra hrozí to, že měrná kvapalina, najčastejšie ortuť, v dósledku udelenej hybnosti sa može nárazom na ukončenie uzavretého ramena rozbit a rozliať sa. Spolehlivé zariadenie odstraňujúce tuto nevýhodu nebolo ešte popísané a čiastočným riešením je manometer so spatným ventilom.Usually, U-shaped liquid manometers operating on the principle of formation are used to measure pressures ranging from atmospheric pressure to vacuum; Toricelli vacuum; most often with mercury filling. Filling such a pressure gauge with a specific liquid is staggering, requiring a dose of skill. The penetration of the gas bubble into the closed arm of the manometer distorts the measured results. If the pressure suddenly enters the pressure gauge, there is a risk that the specific liquid, most often mercury, due to the momentum granted can be broken and spilled by the impact on the end of the closed arm. A reliable device to overcome this disadvantage has not yet been described and a partial solution is a manometer with a non-return valve.

Uvedené nedostatky rieši bezpečnostný kvapalinový manometer podl'a vynálezu založený na principe merania tlaku výškou stípca, nad ktoirou je Toricelliho· vákuumi pozostávajúci z trubice tvaru písmena U, ktorej jedno rameno je uzavřete, druhé rameno je spojené s meraným systémem, ktorého podstatou je, že na panel je připojený meraný priestor trojcestným kohútom s vrtáním T, ktorého středné rameno prechádza do kapiláry, rezervoáru a je ukončené měrnými ramenami.Said drawbacks are solved by a safety liquid manometer according to the invention based on the principle of pressure measurement by the height of a column above which is a Toricelli vacuum consisting of a U-shaped tube, one arm of which is closed, the other arm connected to the measured system. the measured space is connected to the panel by a three-way tap with a T-bore, the middle arm of which passes into the capillary, reservoir and is terminated by measuring arms.

Konštrukcia manometra podlá vynálezu umožňuje meranie tlaku z dvoch roznych miest; pri meraní z jedného miesta nie je potřebné druhé rameno zaslepit. Manometer je možné celkom odstavit od meraných systémov alebo ho použiť na vyrovnanie tlakov v oboch systémoch. Kapilára pri náhlom vniknutí tlaku do systému brzdí tlakový ráz mernej kvapaliny; najčastejšie ortuť, ktorá može rozbit ukončenie mernej trubice. Rezervoár má úlohu ako bočná kapacita tlmiť tlakový ráz pri havárii, ďalej je použitelný na odplynenie mernej kvapaliny pri plnění a obnově vákua, ktoré sa prevádza evakuovaním výkonnou vývevou pri obrátenom manometru Plnenie sa uskutočňuje cez kapiláru do vyhriateho manometra; chladnutím sa cez kapiláru nasaje měrná kvapalina do rezervoáre. Je užitočné, potřebné množstvo náplně vyznačit v návode na používanie manometra, najvýhodnejšie na zadnej straně panela.The pressure gauge design of the invention allows pressure measurement from two different locations; it is not necessary to blind the other arm when measuring from one location. The pressure gauge can be completely removed from the measured systems or used to equalize the pressures in both systems. The capillary brakes the pressure surge of the specific liquid when the pressure suddenly enters the system; most often mercury, which can break the end of the measuring tube. The reservoir acts as a lateral capacity to dampen the pressure surge in an accident, and is also useful for degassing specific liquid during filling and vacuum recovery, which is carried out by evacuation by a powerful vacuum pump at inverted pressure gauge. by cooling, the specific liquid is sucked through the capillary into the reservoir. It is useful to indicate the amount of filling required in the manometer manual, preferably on the back of the panel.

Kolík ufahčuje manipuláciu so stupnicou a zároveň pri náhodnom převrhnutí manometra zabraňuje rozbitiu jeho sklenenej časti. Tyčka upevněná na zadnej straně panelu umožňuje upevnenie manometra na stojan v pracovnej polohe ako aj pri plnění. JeThe pin facilitates the manipulation of the scale and at the same time prevents accidental breakage of the manometer by breaking the glass part. A bar mounted on the back of the panel allows the pressure gauge to be attached to the stand in the working position as well as during filling. Is an

226312 praktické posúvnu stupnicu na opačných stranách ociachovať v jednotkách „TORR“ a „Pc“, čo umožňuje priebežne merať v sústave SI a podlá doposial' najpoužívanejšej veličiny mm Hg alebo podlá inej náplně.226312 Practically calibrate the sliding scale on the opposite sides in the "TORR" and "Pc" units, which allows continuous measurement in the SI system according to the most widely used quantity of mm Hg or other filling so far.

Na obrázku 1 je zobrazený bezpečnostný kvapalinový manometer, ktorý pozostáva z podstavca 1, panelu 2, na ktorý je připevněný trojcestiný kohút 5 s vrtáním T, kterého bočné ramená 3, 4 můžu byť opatřené olivkami alebo zábrusmi. Středné rameno 6 trojcestného kohúta 3 prechádza do kapiláry 7, na vrchole do rezervoáru 8; pokračuje měrným ramenom 9 a končí měrným ramenom 10 s rovným ukončením kapiláry, ktoré sú hrubostenné. Posuvna dvojstranná stupnica 11 je opatřená kolíkom 12. Skleněná časť zariadenia je upevněná úchytkami 13 na panel 2. Do otvoru 14 na zadnej straně je možné zaskrutkovať tyč so závitom na upevnenie manometra na laboratorný stojan. Otvor 13 slúži na uloženie tyče so závitom, ak nie je potřebná. Na štítku 18 je označená hmotnost, alebo objem odporúčaných náplní manometra — měrných kvapalín.Figure 1 shows a safety fluid pressure gauge consisting of a pedestal 1, a panel 2, to which a three-way tap 5 with a bore T is attached, the side arms 3, 4 of which can be provided with stoppers or ground joints. The middle arm 6 of the three-way cock 3 passes into the capillary 7, at the top into the reservoir 8; continues with the measuring arm 9 and ends with the measuring arm 10 with a straight capillary end, which are thick-walled. The sliding double-sided scale 11 is provided with a pin 12. The glass part of the device is fastened by clips 13 to the panel 2. A threaded rod can be screwed into the hole 14 on the back to fasten the manometer to the laboratory stand. The hole 13 serves to accommodate the threaded rod if it is not needed. The label 18 indicates the weight or volume of the recommended pressure gauge fillings.

Bezpečnostný kvapalinový manometer je možné použit na meranie tlaku menšieho od atmosferického za použitia různých měrných kvapalín anorganického alebo organického původu.A safety fluid pressure gauge can be used to measure pressure less than atmospheric using a variety of inorganic or organic specific liquids.

Claims

2 2 6 5 12 Practical shifting scale on opposite sides to scale in units "TORR" and "Pc", which allows to continuously measure in the S1-state and so far the most widely used mm Hg or according to another filling. Figure 1 shows a safety fluid pressure gauge which consists of a base 1 of a panel 2 on which a three-way tap 5 is attached, with a bore T, which can be provided with claws or ground joints. The middle arm of the 6-way cock S passes into the capillary 7, at the top of the reservoir 8; it continues with the measuring arm 9 and ends with a measuring band 10 with a straight end capillary which is thick-walled. The sliding double-sided scale 11 is provided with a pin 12. The glass part of the device is fixed by the tabs 13 to the panel 2. It is possible to screw the rod with a threaded fastening of the pressure gauge to the laboratory stand into the opening 14 on the rear side. The aperture 15 serves to receive the bar, if not needed. The label indicates the weight indicated or the volume of the appropriate manometer-capillaries. A safety liquid pressure gauge can be used to measure the pressure of a less odmospheric using different specific quintalines of inorganic or organic origin. OBJECT A liquid pressure gauge based on the height of a pressure gauge, above which there is a Toricelli vacuum, consisting of a U-shaped tube, one arm of which is closed, the other is associated with the measured system. (2) the enclosed space is a three-way tap (5) with a bore T, through which the middle arm (6) passes into the capillary (7), the reservoir (8) and terminates in the measuring arms (9, 10). 1 sheet of drawings