DE1650125C3 - Device for displaying leaks in double-walled containers for liquid stored goods - Google Patents

Description

direction and or flow rate are arranged. · ■ „ α _ργ FrfinHn->

in order are O> e applicability of the principle of the invention

ordered sin.i. ^^ _Mcf , _S unz of the delivery rate as Kritenu-n

30 of the presence or absence of a Leaks is not limited to a specific type.

and way, as in the space between the wall one of the no:

paint atmospheric pressure and from the container .; pressure deviating pressure by means of the pump ar · '

The invention relates to a device 35 right.

for displaying leaks on double-walled The flow rate pressure diagrams of the Lui

Containers for liquid storage goods, in particular mine pumps, of known design have a high

oil in the space between the walls (test room) and the pressure difference at the air pump is always

from normal atmospheric pressure and the flow rate increasing from the container ring. Uie smallest for ·· -

internal pressure a pressure deviating from an _{amount at the 4} o is to be expected if the LuK-

Test room connected pump within a pump its maximum pressure head or vacuum

Pressure setpoint range is maintained, with mean has reached and the largest flow rate when the

are provided that arpeits a delay or an off-air pump without back pressure. u so.

remain the induction of the lower pressure setpoint pressure range is in a range of higher pressure

placed in the wall gap as a criterion of a leakage 45 or vacuum, for example by - 4 m W S

_ANZ ei _g s at overpressure and 4 m water column at reduced pressure.

In the case of already known devices, there is a leak in the monitoring system

hend designated type (Austrian patent specification on. which goes beyond the normal extent, increased

230 285) is the electrical switching device that cüe delivery rate of the air pump as a result of the

trouble-free operation, d. H. in the absence of 50 air flowing in through the leak and

a disturbing leakage for switching on and off the pressure or vacuum aotaii caused by it

used by the pump, depending on the particular and is used to trigger alarms and / or detrimental

linen pressure in the test room controlled pressure switch, related to original signals

and as a means that in the event of the occurrence of the measurement of the delivery rate of the air pump

Leakage, delay or absence of the 55 can occur in the suction or pressure line. Aut

Creation of the negative pressure setpoint as a criterion for the manner in which the delivery rate is measured

indicates a leak, an additional signal can be converted into control and alarm signals.

Pressure switch or an additional level of the glci- is irrelevant. Stand to the specialist

Chen pressure switch or a pressure switch in many methods and devices for determining

binding with a timer. 60 air flow rates available, both

Such arrangements are, however, with a behavioral, for example, devices for determining current

This is associated with a high level of effort, especially the measurement speeds and demand quantities of in

Pressure switches, as they are required here, in the case of gases in pipes, which with the help of resist-

the required response accuracy and living bodies made of temperature-dependent resistance

very time-consuming and also sensitive to _{work 6 5} stand material and its resistance

due to the influence of vibrations in the air pumps. direct or indirect alarm and / or control

The invention is based on the object of triggering a signal.

Establishment of the type mentioned at the beginning of this - The determination of the conveying capacity and the

v. ;; ndluns of the information obtained in this way in Alarm and / or control signals can, however, also be done using commercially available flow rate measuring devices. ; uuiien crlolsicn.

When using the above-described directives, it is irrelevant whether, with interrmi- ■ -.r.-nthe operation of the air pump, the measurement of the! Air pump or also low line ' -1.Ier is interrupted. This measurement can now take place during the entire duration of the pumping operation, \ i-_T laneer,
if a device is used in the conduction pump and the test room to be monitored to determine the direction of flow of gases in pipes, then a tightness can also be measured during breaks in operation of the air pump with intermittent operation, since t ' en collapse of the pressure or vacuum '- in the event of a leakage of air currents, the deichfails can be displayed as a criterion of an inefficiency ■': ■ , in such a fa '.' However, the measuring sensitivity of the measuring device would have to be increased significantly during the breaks in operation of the air pump and reduced again during operation.

Claims (2)

, .- K-nd / u improve that a sufficiently high . . Γ ,, ϊ „ _n .'i response accuracy with relatively Patent application: * ^u - - ' ^f , - ,,,. ·. ι ■ he, n.-eni Autwana achieve! will. ,. ,, ■ ·! ■ ~ I) V-- \ -ii "ibe is carried out in accordance with I hmncn-ung vur _display; . on L nd.cn uc-ue «!> ■ _{; ;} V ^ ^^, ^ ^ ^, ^ ^, ^ on double-walled containers for f.u <-; ι .age, - -, ο .. ^ l * · ,,.,] .. '„ Well. especially mineral · "·· !, in whose Wa'U.'w- •• - ^ e-ei.e: ^" ^ J ^ _,; ^ .., ... ,, p urnpe during Ue- -ehenraum, 'TeMraum- a vom nor ^ akn \:> :: o ^ .j ^. ^ C _s ", 'fbMtatii me-er and depending- -pharencrue.-. and from the Bv-halteririneivjrucr, a ··· '. '■' ■ '■ -'. -, tr irfW-istiini '• κι - "' · .- «Calibrating ΙΜ.Λ from one: to the" Λ ,, ™haben an- ke, u, n, n, r ^ '^ _n d ^ nu ^ dl' ^ ge ^ eh! os, _n en pump within a, - Drucksoü-:, ehe :: D, y . ... ^ ^ ™ _n , _{ofcm depending on} pressure im value is held, w.bo, M.ttel ^ -ge-e- h -, "s, ^ - ¹ ^. £" ^ _{underpressure} ^ _{;, d} , _r hen are having a delay or an a'jsbie- al- -; e depending on clv, urlv. vcrschi-W ben the induction of de- Cnterdruck ^ v, r, ^ r.r ^. against de, - i-d ^ n. he. . ^ n ■ m wall space ai- kr: termm e.ner Le.- n „u> κ al> J ^ _{Vcrwcndun £} . _{dcr funding} : - Show kaj-e, thereby geke η η ζ e, e π -. ₅ b, L ... _t Cl ₁ -Π, presence of a possible- nei that as a means of effecting the display ^ KJ ^ ^U _v ^ _ci,. ^ ß _sic n = t bc> on, so before it is planned, «calibrate the carriers. ··.! ·.; - 'Ι .-. κ-n. - "f _u -, nH hi hnhi-r \ '·; Mur.B the "associated with the goal area, so teehm-enen effort K, high N,., - During the pumping operation, the pump is automatically and accurately realized in practice measure and depending on a change »l, .ne possibility of \ * ™ ^τ ^ ™ ϊ ™ ^ '; *: Talk to the Furder! e.stung. «Aehung-r principle, insist according to unern_ wuu, 2. Execution according to claim 1. thereby suggesting the invention darm. .JaGm ^ ^ aug- un. mark. daU in the suction and / or pressure or pressure line of the P «^^^^ ' t _r Line of the pump Resistance body made of temperature-temperature-dependent resistance material. ..r Temperature-dependent resistance material for measuring, ₅ measuring the flow rate and / o (kr Stron un. Solution of the flow rate and or flow * - direction and or flow velocity, ..