FR2846937A1 - Device for maintaining the pressure for displacement of a inflated helium balloon, uses manometer to control pressure in order to inflate it - Google Patents

Abstract

The inflation device includes a valve (14) situated at the exit of a container of helium (13) using a manometer (15) to control the visual pressure for the inflating electrovalve (16) controlled by the pressostat (5), with a decanter (17) and a system for regulating the pressure (18) connected to a valve (19) which itself is connected to the balloon. The deflating device includes a pump (6) with oil bath with a temperature exchanger (7) allowing to lower the temperature of Helium. An electrovalve (8), normally open, is connected to the balloon circuit, with a retarder (9) for its closing. The retarder is controlled by the pressostat (4), allowing to protect the pressure pump of the balloon. A second electrovalve (10) rocks the retarder, for refilling the container, and pressure limiter (11) situated after the electrovalve, intervenes for putting the pump outside the circuit, when the maximal pressure of the helium container is attained. A valve (12) is disposed between the limiter and the container for insulating the circuit if necessary.

Description

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  The present invention relates to a pressure maintenance device for moving a new generation single-shell balloon, non-expandable, inflated with helium, having a pre-established pressure resistance. This device, according to the invention, makes it possible to have daily use whatever the hour of use during the day, the temperature, the atmospheric pressure, or the altitude, for maximum bearing capacity and good stability of the balloon. , due to the sensitivity of helium, to these three elements.

  The operating principle of the pressure maintenance device for moving a helium-inflated monohull balloon characterized as follows: In a safety system including a pressure switch (3) with a pre-calibrated value of the pressure due to the operation of the balloon (1) connected to the sensor (20), making it possible to disconnect the inflation device as well as the deflation device An inflation system comprises a pressure switch (5) with a pre-calibrated value of pressure

  lower (X-) for re-inflating the balloon (1).

  A deflation device includes a pressure switch (4) with a pre-calibrated value of upper pressure (X +)

  and also a helium tank (13) for the recovery and storage thereof.

  Device according to claim 1, characterized in that the inflation device comprises a valve (14) for isolating the circuit situated at the outlet of the helium tank (13) followed by a pressure gauge (15) pressure display, an inflation solenoid valve (16) controlled by the pressure switch (5), a decanter (17) and the pressure regulation system (18) connected to a valve (19) itself connected to the ball

  Device according to any one of the claims, characterized in that the deflation device comprises a pump (6) in oil bath with a temperature exchanger, controlled by the pressure switch (4) followed by a temperature exchanger (7) allowing the temperature of the helium to be lowered. A normally open solenoid valve (8) connected to the circuit of the

  balloon, with a retarder (9), for its closing, controlled by the pressure switch (4), making it possible to keep the pump (6) at the pressure of the balloon, this to cancel the peak pressure. The closure occurs after the pump (6) has started, a second solenoid valve (10) opens after the retarder (9) switches over, to fill the tank, followed by the pressure limiter (11), which intervenes to switch off the pump (6). When the maximum pressure of the helium tank (13) is reached, a valve (12) is arranged between the limiter

(11) and the tank (13).

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Claims (1)

  1 / Pressure maintenance device, for the displacement of a balloon inflated with helium, characterized in that it comprises at least one pressure sensor (20) connected to the balloon (1) In a safety system comprising a pressure switch (3) with a pre-calibrated pressure value, for the operation of the balloon (1) connected to the sensor (20), allowing the inflation device and the deflation device to be disconnected when the device is disconnected balloon inflation system An inflation system controlled by a pressure switch (5) with a pre-calibrated value of lower pressure (X-) connected to the sensor (20) allowing the balloon to be inflated (1) A deflation device controlled by a pressure switch (4) with a pre-calibrated value of higher pressure (X +) connected to the sensor (20), as well as a helium storage tank (13), and a manometer (2) visual pressure control (fig 1) Device according to the r Claim 1 characterized in that the inflation device comprises a valve (14) located at the outlet of the helium tank (13) followed by a pressure gauge (15) for visual pressure control, by a solenoid valve (16) inflation controlled by the pressure switch (5), a decanter (17) and the pressure regulation system (18) connected to   a valve (19) itself connected to the ball.   Device according to any one of the claims, characterized in that the deflation device comprises an oil bath pump (6)   with a temperature exchanger, controlled by the pressure switch (4) followed by a temperature exchanger (7) enabling the temperature of the helium to be lowered. A solenoid valve (8), normally open, connected to the circuit of the balloon, with a retarder (9), for its closing. The self-timer controlled by the pressure switch (4) keeps the pump (6) at the pressure of the balloon, this to cancel the peak pressure. The closure occurs 30 after the pump (6) has started. A second solenoid valve (10) opens following the tilting of the retarder (9), to fill the tank, the pressure relief valve (11) located after the solenoid valve (10) intervenes to switch off the pump (6), when the maximum pressure of the   helium tank (13) is reached. A valve (12) is arranged between the limiter (11) and the tank (13) to isolate the circuit if necessary.