DD205748A1 - ARRANGEMENT FOR THE TREATMENT OF RAINWATER OIL COLLARS - Google Patents

Abstract

THE INVENTION CONCERNS AN ARRANGEMENT FOR REGULATING THE DESOLUTION OF COLLECTING PITCHES, PREFERABLY TO OIL-FILLED TRANSFORMERS IN RELAXATION. IN ADDITION TO THE CONTROL OF THE WATER LEVEL, THE SEQUENCE OF AN OIL LAYER, EVEN THROUGH HIGH DEFICIENCIES, WILL BE DETECTED FOR CONTROL PROCESSING. TWO LEVEL SWITCHES TAILORED WITH PROTECTIVE TUBE CONTACTS AND FLOATS OF VARIOUS SPECIFIC WEIGHT ARE LOCATED IN THE COLLAR PITCH, WHICH, AT SEVERAL LEVELS OF THE COLLECTION PIT, EACH MAKE AN ELECTRICALLY LINKED CONTACT PAIN. THE DEFINED SIGNALS ESTABLISHED BY THESE FLOAT-CONTROLLED CONTACTS ARE MANUFACTURABLE FOR PUMP OR SHIFT CONTROL AT THE COLLECTOR PITCH.

Description

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Arrangement for drainage of rainwater oil collecting pits

Application of the invention

The invention relates to an arrangement for Begelung the drainage of 2egenwasser oil collecting trench, preferably on oil-filled transformers in open air installation.

Characteristic of the known technical solutions

At the dewatering of Begenwasser-Öl-Saramelgruben in outdoor switchgear high demands are placed on the prevention of drinking water contamination especially in drinking water protection zones. It must be ensured that even with large amounts of water, as a result of heavy precipitation, a complete oil collection of the largest device is secured. When emptying the sump, no oil may be discharged into waterways, sewers or underground.

To meet these requirements au, the capacity of the collection pits must be sufficiently large and carried out a regular visual inspection of the collection pit contents to fill level and the presence of oil fractions.

For placement in sewage pits, an oil alarm device (DS-OS 2728988) has been proposed, which can display an oil layer floating on the water. A swimmer swimming only on a water float is connected with a float floating on oil and water, so that when an oil layer occurs, the heavier swimmer changes its position. This inclination of the float is on a mercury switch

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transferred, whereby a switching operation, for. B. "alarm", can be triggered.

! Technical part of this arrangement is that the level of the sump is not detectable.

Object of the invention

The aim of the invention is to eliminate the above-mentioned deficiencies, the demands of the culture of the country being met, in particular with reduced expenditure for the construction of Hegenwasser oil collecting pits and less maintenance effort,

Explanation of the invention of the invention

The invention has for its object to provide an arrangement for automated dewatering of bottled water oil collection pits, which detects the occurrence of an oil layer on the water in addition to the regulation of the water level during heavy water flow during heavy precipitation to control engineering processing. With two, each slidably mounted on guide tubes and provided with permanent magnets floats with different specific weight and arranged in the guide tubes, magnetically actuated protective tube contacts, the object is achieved by the invention arranged in the guide tubes contact columns in several. Levels of the Sainmelgrube each form an electrically linked contact pair. When closing and subsequently opening only one contact of a contact pair of a plane or closing a contact of the contact pair of a level genieinsam with a contact the next higher level of the sump definable signals are thus achievable. This can be triggered via known control engineering links an accidental signal, connected to an off signal for a pump control or a closing signal for a slide control.

embodiment

The invention will be explained below with reference to an embodiment

U -3-

be explained in more detail.

In the accompanying drawing shows

Fig. 1: the schematic representation of the arrangement in a blessed water-oil sump

In the egewasser oil sump 1 associated with an oil-filled transformer in the exemplary embodiment, once a level switch with a float 3 floating on oil and water and a further level switch with a float 2 floating on water but not on oil is arranged.

The fill level switches used in the exemplary embodiment, which are known per se, consist of a guide tube 4, in each of which a row of protective tube contacts 5 »6 are arranged vertically. The floats 2 _f 3 are formed as spherical hollow bodies and each provided with a permanent magnet.

The arranged in the guide tubes 4 Eontaktsäulen 5j 6 form in several levels of the sump 1 each an electrically linked Zontaktpaar 5.1 »6.1 to 5 · 8, 6.8. In the exemplary embodiment, eight levels were selected, which are sufficient to detect all operating conditions.

By closing and subsequently opening only one contact of a plane, for example the contact 5 "4 of the contact pair 5 · 4» · 6.4 or by closing the contact · 5 · 4'together with the contact 6.5., The presence of an oil layer in the collecting pit 1 can be detected by means of defined signals. By means of these signals at the occurrence of said operating states, an off signal for a pump control or a closing signal for a slide control with simultaneous delivery of accident signals can be triggered by means of these signals.

When simultaneously closing the lying in an upper level contact pair 5.7, 6.7 a signal for emptying the sump 1 can be triggered, while at the same time

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Closing of the arranged in a lower level contact pair 5 · 2, 6.2 the emptying of the sump 1 ends • is.

Claims (1)

240066 0 -5- Experience san spruch 1. Arrangement for drainage of 2egenwasser-oil-8ammelgruben, with two, each on guide tubes slidably eye-mounted and provided with permanent magnets floats with different specific weights and in the leadership leas, arranged magnetically actuated protective tube contacts, characterized in that in the Guide (4) arranged contact columns (5, 6) in meneren levels of the sump (1) each form an electrically linked contact pair (5.1 ₅ 6.1 to 5 · & »6.η), which when closing and subsequent open only one contact of a pair of contacts (5 »1» 6.1 to 5 «n, 6« n) of a plane or when closing a contact of the contact pair (5 '1> 6.1 to 5.Qj 6, n) of a plane together with a contact ( 5.2, 6.2 to 5 · π + 1, 6.n + 1) of the next higher level of the sump (1) defined signals are achievable and thus over known per se control-technical linkeh'a Havariesignal, connected to an Off is a signal for pump control or a closing signal for a slider control can be triggered. For this 1 page drawing