PT98503B

PT98503B - DETECTOR OF FLOODS

Info

Publication number: PT98503B
Application number: PT9850391A
Authority: PT
Original assignee: Antonio Eduardo Marques Quares
Priority date: 1991-07-30
Filing date: 1991-07-30
Publication date: 1996-06-28
Also published as: PT98503A

Abstract

Protection is provided in a flood detector, via sensors 14 placed in the floors of kitchens, bath houses or industrial plants, for property and, indirectly, persons, via an apparatus that controls a normally open electrovalve, placed between the water meter and its inlet pipe in the dwelling. As soon as there is any anomaly such as open taps due to previous lack of water or any fault in domestic appliances operating directly with water, when the sensors sense 0.5 mm of water on the floor, it shuts off the mains water, via the control of the apparatus, via the electrovalve, and turns on a buzzer 18 and an alarm warning light 19. This occurs when the control switch 6 is in the automatic position indicated by a green LED 10. In the manual position it shuts off the water without having to use the safety tap, being indicated by a yellow LED 23. <IMAGE>

Description

DESCRIÇÃO DO IhVEITTODESCRIPTION OF IhVEITTO

A invenção refere-se a um Detector de inundações segundo o conceito básico da primeira reivindicação,The invention relates to a Flood Detector according to the basic concept of the first claim,

A alimentação deste aparelho é feita com tensão de 22OV da rede através de uma tomada com terra 1, cuja fase entra numa caixa de fusível de protecção 2, Do fusível de protecção saiem duas linhas de fase: a primeira 3 mete tensão directamente ao contacto inversor do relé 4, a segunda linha de fase 5 mete tensão ao ponto 0 do inversor 6,The supply of this device is made with a voltage of 22OV from the mains through an earthed socket 1, the phase of which enters a protective fuse box 2. of relay 4, the second phase line 5 puts voltage at point 0 of inverter 6,

Ao ligar o inversor 6 para a posição de automático, a linha de fase 7 mete tensão directamente ao primário do transformador 3, que conjuntamente com uma barra de neutros 9 mete 220 Volts ao transformador. Em simultâneo acende um 1ED sinalizador verde 10 intercalado com o negativo de chegada à sonda e uma re sistência 11 ao positivo de chegada ao relé, indicando deste mo do que o aparelho está na posição de sensibilização.,No secunda rio do mesmo transformador saiem 24 V alternados quej ao passarem na ponte rectificadora 12, saiem contínuos, sendo filtrados em seguida através de um condensador electrolítico 13. 0 negati vo desta tensão contínua vai directamente fazer a entrada no emissor do transístor amplificador ITPlí da sonda 14, saindo pelo colector depois do contacto de, pelo menos, 0,5 mm de água entre a base e o colector, fechando o circuito metendo o negativo à bobine do relé 15. Este negativo, ao excitar a bobine do relé conjuntamente com o positivo que vem da ponte rectificadora 12, depois de passar pelo condensador electrolítico 13, faz con que a bobine do relé 15 ao atracar, meta a linha de fase 3 do contacto 4 do relé na linha de fase 16 directamente à tomada 17 da ele c trovaivula.When the inverter 6 is switched to the automatic position, phase line 7 puts voltage directly to the primary of transformer 3, which together with a neutral bar 9 puts 220 volts into the transformer. At the same time, a 1ED green signal light 10 interspersed with the negative of arrival at the probe and a resistor 11 of the positive of arrival at the relay, thus indicating that the device is in the sensitization position. Alternating V that pass through the rectifying bridge 12, they leave continuously, being then filtered through an electrolytic capacitor 13. The negative of this continuous voltage will directly enter the emitter of the amplifier transistor ITPlí of the probe 14, leaving the collector after the contact of at least 0.5 mm of water between the base and the collector, closing the circuit by inserting the negative into the relay coil 15. This negative, when exciting the relay coil together with the positive coming from the rectifying bridge 12 , after passing through the electrolytic capacitor 13, causes the relay coil 15 to dock, insert phase line 3 of contact 4 of the relay into phase line 16 directly taking 17 of him c trovaivula.

É de notar que podem ser ligada,s tantas sondas quantas forem necessárias, em paralelo, que a primeira a ser sensibilizada fecha imediatamente o circuito e por consequência a electroval vula.It should be noted that as many probes as necessary can be connected, in parallel, that the first to be sensitized closes the circuit immediately and consequently the electrovalve.

Logo que a bobine do relê 15 tenha tensão, faz accionar um besouro 18 que está ligado en paralelo à bobine do relé. Sn simultâneo está ligado um 13D sinalizador vermelho de alarme 19, intercalado com una resistência 20 da barra de neutros, e um diodo polarizado inversamente 21 à linha de fase 16 da tomada 17 da electrovalvula.As soon as the relay coil 15 has voltage, it triggers a beetle 18 that is connected in parallel to the relay coil. At the same time, a red alarm signaling 13D 19 is connected, interspersed with a resistor 20 of the neutral bar, and an inversely polarized diode 21 to the phase line 16 of socket 17 of the electrovalve.

ITo caso de se pretender fechar a água, por motivo de reparações, pode-se fazê-lo manualmente, comutando o inversor 6 para a posição manual, deste caso a linha de fase 22 mete directamente tensão à tomada 17 da electrovaivula, ao mesmo tempo que acende um LhD sinalizador amarelo 23 indicando a posição manual e que está iguaímente intercalado entre a resistência 20 e um diodo inversamente polarizado 24 ligado ao pino do inversor da posição manual do inversor 6.If you want to shut off the water for repairs, you can do it manually, switching the inverter 6 to the manual position, in this case the line 22 directly puts voltage to the socket 17 of the electric valve, at the same time which lights up a yellow LhD signal 23 indicating the manual position and which is also interspersed between resistor 20 and an inversely polarized diode 24 connected to the inverter pin of the manual position of the inverter 6.

A nível de ensaios das sondas, para verificar as perdas de sinal do transístor amplificador, foram utilizados 200 metros de fio multifilar de 0,5 mm' o que em termos de percurso corresponde a 400 metros de condução do negativo, da ponte rectificadora à sonda e volta ao relé. Verifica-se, assim, que, em cons_e quência do transístor aplicado como amplificador, as perdas de sinal são praticamente nulas.At the level of testing the probes, to check the signal losses of the amplifier transistor, 200 meters of 0.5 mm 'multi-wire wire were used, which in terms of path corresponds to 400 meters of negative conduction, from the rectifier bridge to the probe and return to the relay. Thus, it appears that, due to the transistor applied as an amplifier, the signal losses are practically zero.

As terras estão interligadas simultaneamente, através de um bome de terra apropriado 25, entre a tomada de alimentação da rede e a tomada 17 de alimentação da electrovalvula.The grounds are interconnected simultaneously, through an appropriate earth bore 25, between the mains supply socket and the electrovalve supply socket 17.

Claims

RLIViKDIOAÇÕlS

1 & _ Flood indicator designed to prevent any flooding, domestic or industrial, caused by pipe anomalies or the forgetfulness of taps that may have been opened due to water supply in the network.

2- Flood connector according to claim 1, characterized by an apparatus that electrically controls an electrovalve placed between the meter and the water inlet pipe in the dwelling.

3- Flood detector according to claims 1 and 2, characterized by being sensitized by probes, which are placed in strategic places, such as kitchens and bathrooms, when detecting 0.5 mm of water on the floor, give rise to the electrovalve to instantly close the mains water.

4- - Flood detector according to the previous claims, which is controlled by a 3-position switch AUT ”0 and IAlAl”, in which in the automatic position the device is ready to sensitize, through any of the probes, the minimum amount of 0.5 mm of water appearing on the floor; position ”0 the device is in. deactivated; IIAIT position in which the water can be closed directly through the electrovalve, to carry out any repairs, ha. AUT position ”always cue the probes to sensitize water, on the floor immediately turn on a red LED light display and a beetle acoustic warning light as an alarm signal; in position ”IÃA1T switches on a yellow light indicator, type LEE, intended to inform that the water is closed manually, without stopping this, the probes have been sensitized.

5- - Flood detector according to the previous claims, in which the sensitization by the probes works with weak currents of 24 V continuous, where only the negative serves for the probes to sensitize, and in which the positive enters directly into the command relay of the electrovalve,

- Flood detector according to the preceding claims, consisting of probes consisting of an amplifying transistor of type N1E with negative arrival at the emitter and exit by the collector after being excited by the water contact between the collector and the base.