FR2792070A1 - APPARATUS FOR MEASURING AND RECORDING THE PRESSURE OF A WATER DISTRIBUTION NETWORK - Google Patents

Abstract

Apparatus intended for the measurement and the recording of the variations of pressure of a water distribution network characterized in that it comprises a casing (10) in the form of plug coming to be positioned on a connection of arrival of mains water, this box containing a pressure probe (12), an electronic recording device (14) and an autonomous power supply (16).

Description

1 2792070

  The subject of the present invention is an apparatus intended for measuring and

  recording the pressure variations of a water distribution network.

  We know that at present, pressure studies on water distribution networks, more particularly drinking water, are very expensive, this drawback resulting on the one hand from the design of the devices making their complicated poses on the points of the network where the pressure and on the other hand, the complexity of the operations of exploitation of the data which they make it possible to collect. Indeed, the devices currently available on the market are of large dimensions and they must be installed near the water distribution network, for example near fire hydrants, or

  hidden in unsanitary looks to mitigate the risk of vandalism.

  In addition, these devices include data processing systems, either on paper, inexpensive but imprecise or complicated when they are more

  precise, with tedious software.

  The present invention has therefore set itself the objective of producing a pressure measurement and recording device, compact, autonomous, precise and simple to use, this device being able to be installed at any point of the network including pressure variations should be studied, the latter being observed

  with great precision and analyzed with ease and reliability.

  Consequently, the subject of the present invention is an apparatus intended for measuring and recording the pressure variations of a water distribution network, characterized in that it comprises a plug-shaped housing positioned on a network water inlet connection, this box containing a pressure probe, an electronic recording device and an autonomous power supply. According to a preferred embodiment of this device, the housing is screwed onto

  the connection of a fire hydrant, in place of the original plug of the latter.

  According to a variant of the invention, the housing is provided with an adapter designed to

  so as to allow its installation on the water supply of a subscriber of the network.

2 2792070

  According to the present invention, the recorded data are exploited by software designed so as to edit curves or tables of pressure values, configuration sheets such as measurement addresses, time step of the measurement used, etc. Other characteristics and advantages of the present invention will emerge

  of the description given below with reference to the attached drawing which illustrates one

  example of implementation and implementation.

  In the drawing: FIG. 1 represents a fire hydrant on which the apparatus object of the present invention can be mounted; Figure 2 is a vertical sectional view of an embodiment of this device and, Figure 3 is a perspective view of the variant of the device object of the invention provided with an adapter for its implementation on the water supply

of a subscriber.

  As has been specified above, the device which is the subject of the present invention is more particularly intended for recording the pressure of the network on a post or fire hydrant. In Figure I of the accompanying drawing, there is shown in vertical section a fire hydrant of conventional type designated by the reference 11, protected by a cover, this terminal comprising a plug 13 mounted on the fire terminal connection. The device object of the invention is designed so as to come

  position in place of this plug 13.

  Referring to FIG. 2, it can be seen that, in this nonlimiting exemplary embodiment, an apparatus according to the invention comprises a housing 10 on which a flange 11 is attached so that this housing has the form of a plug intended to be positioned in place of the plug 13 of the fire hydrant. For this purpose, this housing 10 comprises a cylindrical body provided with a fire engine connection 15 at its upper part so that it can be positioned in place of the plug 13. The cylindrical part of the housing 10 comprises, at its lower part, a pressure probe 12, which is produced in the form of a piezometric probe, and this cylindrical part receives an electronic system for recording pressure variations 14 and an autonomous power supply 16 constituted for example by a case of electric batteries. The upper part of the accommodation in which the

3 2792070

  pressure recording system 14 and the supply unit is closed by a cover 17, preferably sliding. The unit includes means allowing the positioning of its implementation tool. We notice that

  the device object of the invention is particularly compact and discreet.

  The data recorded by the probe 12 and recorded by the electronic recording system 14 are used using software so as to edit curves or tables of pressure values, data sheets

  configuration (measurement addresses, measurement time step, users, etc.).

  According to the variant illustrated in FIG. 3, the pressure recording device according to the invention comprises an adapter 18 so as to allow its installation at a subscriber of the water distribution network, the adapter 18 being

  designed to plug into the water supply.

  Among the advantages provided by the present invention, the following may be mentioned in particular: - possibility of use on existing structures: on fire hydrants or fire hydrants or anywhere in the distribution network; - discretion, simplicity and speed of implementation: its implementation can

  be performed at any point on the network.

  - security: we can provide specific installation and removal keys; - possibility of observing pressure variations, with high precision at any point in the distribution network, compactness and autonomy, - possibility of carrying out measurement campaigns using several devices and analyzing problems that may arise on the distribution network,

directly at the subscriber.

  It remains to be understood that the present invention is not limited to the embodiments described and / or mentioned above but that it

includes all variants.

4 2792070

Claims (5)

  1 - Apparatus for measuring and recording the pressure variations of a water distribution network characterized in that it comprises a housing (10) in the form of a plug which is positioned on an inlet connection of mains water, this housing containing a pressure probe (12), a recording device   electronics (14) and an autonomous power supply (16).   2- Apparatus according to claim 1 characterized in that the housing (10) is screwed onto the connection of a fire hydrant (11), in place of the original plug (13) of the latter.   3- Apparatus according to claim 1 characterized in that the housing (10) is provided with an adapter (18) designed to allow its installation on the arrival of water from a network subscriber.   4- Apparatus according to any one of the preceding claims, characterized   in that the recorded data are used by software designed to edit curves or tables of pressure values, configuration sheets such as measurement addresses, time step of the measurement used, etc.   5- Apparatus according to any one of the preceding claims, characterized   in that the pressure probe (12) is a piezometric probe.