DE3532523A1 - Central measuring device for detecting the hot water consumption of a plurality of consumption points in systems having a circulation device - Google Patents

Abstract

Separate measuring and calculation of hot water consumption is henceforth to be a legal requirement. As, however, the areas of consumption (living accommodation, commercial premises etc.) are generally a considerable distance from the point at which the water is heated (boiler room), a circulation pipe is normally placed either in the middle of the area of consumption or in the vicinity of each tapping connection. The tapping connections are controlled from there by means of individual pipes. This has the following disadvantages: firstly, hot water is not immediately available (the tap must be allowed to run), secondly a water meter must be installed at each tapping connection. The invention makes it possible to use a water-measuring device in the boiler room to measure the hot water consumption of any number of tapping connections in an area of consumption and simultaneously to situate the circulation pipe directly at the point of consumption. The device (see drawing) is installed in the flow pipe (1) and the return pipe (circulation) (2) and forms a unit. The non-return valve (3) closes when a tapping connection is opened. The pressure now produced in the circulation pipe (4) acts on the diaphragm (5) which yields to the pressure in a controlled fashion. The diaphragm shaft is connected to the water meter. The metering device (6) is released by the pushing action and water consumption is measured. It does not matter whether the pulse of the membrane is mechanically or electronically ... Original abstract incomplete. <IMAGE>

Description

Description R

Title: Central measuring device for recording hot water consumption for several consumption points in systems with a circulation system.

Field of application: The invention relates to the measurement of hot water consumption at a central point for one or more consumption points at the same time running circulation system.

Purpose: According to the current legal layer, hot water consumption is separate to measure and bill.

Since the areas of consumption (apartments, business premises, etc.) mostly far from the place where the hot water is prepared (boiler room) Usually a circulation pipe is laid to keep hot water nearby the consumption points (kitchen, bathroom, etc.).

In order not to record the circulated water through the counter, the hot water consumption can only be measured immediately before the point of consumption will.

This means that there is a water meter at every point of consumption is required.

Criticism: These water meters cannot be integrated into the facility because they have to be legible and controllable.

When determining consumption, the state of all meters must be cumbersome be multiplied.

The source of error is high.

The cost is enormous.

All devices have to be recalibrated every 8 years expanded will.

All rooms must have water meters for reading and checking to be entered.

Task: The invention is based on the task of the multitude of Water meter to diminish on a total device that is outside of the consumption ranges (e.g. apartments? expediently installed, checked and can be read.

Solution: This object is achieved according to the invention in that with a measuring device the total hot water consumption of a certain area - the same with a soft innumerable number of The use points can be determined, although the Hot water is circulated in a circulation line at the same time.

Description of an exemplary embodiment: An exemplary embodiment of the The invention is shown in the drawing and is described in more detail as follows: The device forms an installation unit and is in the flow (1) and in the Built-in return (circulation) (2).

When opening one or more taps in the relevant consumption area (Pin) it closes the non-return valve (3), which opens during the circulation process ar.

The pressure that is now created in the circulation line (4) applies the membrane (5), which gives way to the pressure in a controlled manner.

A connection leads from the membrane to the counting device (6).

It does not matter whether the impulse of the membrane is mechanical (rod i.a.) or electronically transferred to the water meter (7).

In any case, the counter is released and the water consumption can be measured will.

When the consumption points are closed, the pressure conditions increase again and the -not to be measured circulation process (8) -can be continued.

- L e r s e i t e -

Claims (1)

Claims: Central measuring device for recording the hot water consumption for several consumption points in systems with a circulation device, characterized in that because the metering device is controlled by a membrane and so is the hot water consumption for several consumption points can be recorded by a single water meter.