DE8029946U1 - DEVICE FOR CLEANING LABORATORY EQUIPMENT - Google Patents

Description

80 254 AB

Degussa Aktiengesellschaft 6000 Frankfurt am Hain 1, Weißfrauenstrasse 9

Device for cleaning laboratory equipment

The innovation relates to a device for cleaning laboratory equipment, in particular for degreasing glass pipettes, by means of cleaning fluids and subsequent rinsing, essentially consisting of a container, in the interior of which the devices to be cleaned can be introduced.

For cleaning and degreasing soiled laboratory equipment,

Pipettes in particular are generally used Chromium-sulfuric acid in which the devices are placed or with which they are filled. Used as devices for this purpose one usually uses normal glass containers. The disadvantage here is that the chromium-sulfuric acid is highly corrosive and is toxic. In addition, there are difficulties in the wastewater treatment of the chromium-sulfuric acid contaminated rinsing liquids.

Alkaline cleaning fluids have therefore already been used to clean soiled laboratory equipment. the handling also took place in simple vessels. There are fewer wastewater problems here, however, handling is still cumbersome and manual.

II ««

It was therefore the object of the present innovation to provide a device for cleaning laboratory equipment, in particular for degreasing glass pipettes, using cleaning fluids and subsequent rinsing, essentially consisting of a container, in the interior of which the devices to be cleaned can be placed, with which a simple and, if necessary, automatically controllable cleaning is possible.

This object has been achieved according to the invention in that the container is surrounded by a second container, the Gap between the inner container and the outer container with the interior of the inner container via a Line connected and the inner container with a supply line and a discharge line is provided, the inner container can advantageously be equipped with a heater equipped and, if necessary, provided with an automatic, 2Q adjustable control.

The inventive device length is easy to handle, enables a good cleaning effect and is if necessary automatically adjustable.

»T The illustration shows a schematic example of an embodiment sform of the device according to the innovation.

The device consists of an outer container (l) and an inner container (2) provided with a heater (3),

on both e.g. made of sheet steel. In the interior (4) of the inner container (2) there is a basket (5) with the devices to be cleaned in the cleaning liquid (6), for example an alkaline detergent. The interior space (4) is connected to the intermediate space via a line (7)

(8) between the outer container (l) and the inner container (2) connected.

i, ·

W, ι

f After the cleaning time has expired, the cleaning

liquid are transferred into the space (δ) by means of a pump (13) and a valve (14). Via the supply line (15), which is provided with a throttle (18), hot water can be fed into the interior (4) of the interior (4) of the interior (4) either via a valve (17) or via an ion exchanger (12) and a valve (11) Inner container (2) supplied and removed via a discharge line (16), provided with a valve (9) and a suction pipe (1O). The cleaning and / or rinsing can be carried out several times. After removing the basket (5), the cleaning liquid can be transferred back into the interior (k) and a new cleaning process can be started.

20th

25th

PAT / Dr.Br-ka 6, ii.i98O

30th

35

»4 * t

80 254 AB

Summary Device for cleaning laisor devices

For cleaning laboratory equipment, especially pipettes, describes a device that is easy to use and automatically adjustable. she consists of an outer container (l) and an inner container (2), the space (8) between Inner container (2) and outer container (l) with the inner space (4) of the inner container (2) via a line (7) connected and the inner container (2) with a supply line (15) and a discharge line (l6) for the detergent is provided.

Claims (3)

80 254 AB Degussa Aktiengesellschaft ¹⁰ 6OOO Frankfurt / Main, Weißfrauenstrasse 9 Device for cleaning laboratory equipment 15th > ί »» «« CLAIMS I 20 I? ■ ι I Device for cleaning laboratory equipment, especially ί especially for degreasing glass pipettes, by means of i cleaning fluids and subsequent rinsing, :,. essentially consisting of a container in ι the interior of which includes the devices to be cleaned can be brought, characterized in that the container (2) is surrounded by a second container (l), the space (8) between the inner container (2) and the outer container (l) with the inner 30th space (4) of the inner container (2) via a line (7) and the inner container (2) with a supply line (15) and a discharge line (l6) is provided. 35 2. Apparatus for cleaning laboratory equipment according to claim 1, characterized in that «that the inner loading = container (2) is equipped with a heater (3). 3. Device for cleaning laboratory equipment according to claim 1 and 2, characterized in that it is with is provided with an automatic control.