SU868235A1

SU868235A1 - Method and apparatus for determining liquid leakage

Info

Publication number: SU868235A1
Application number: SU792826489A
Authority: SU
Inventors: Игорь Владимирович Тайкач; Леонид Евгеньевич Решин; Григорий Андреевич Порывай; Наум Натанович Сельдин
Original assignee: Московский научно-исследовательский и проектный институт жилищного хозяйства
Priority date: 1979-10-04
Filing date: 1979-10-04
Publication date: 1981-09-30

Description

Изобретение относится к контрольно-’ измерительной технике и может быть применено, в частности, в системах водоснабжения жилищно-коммунального хозяйства для обнаружения утечек воды из водоразборной и наполнительной арматуры. ⁵ The invention relates to a control and measuring technique and can be applied, in particular, in the water supply systems of the housing and communal services for detecting water leaks from water-folding and filling fittings. ⁵

Известен способ определения утечки в напорных трубопроводах, осуществленный в устройстве, содержащем датчики с усилителем, согласующие устройства, из— бирательные усилители, а также пульт уп-/ равнения [1].A known method for determining leakage in pressure pipelines is implemented in a device containing sensors with an amplifier, matching devices, selective amplifiers, as well as a control / equalization panel [1].

Однако этот способ и устройство обладают тем недостатком, что они не могут быть применены для обнаружения утечки жидкости из арматуры у потребителя.However, this method and device have the disadvantage that they cannot be used to detect leakage of fluid from the valves at the consumer.

Известно устройство для определения наличия потока жидкости, реализующее способ, заключающийся в том, что с помощью потокочувствительного элемента й _χгерметизированного контакта, управляемого магнитом, расположенным на потокочувствительном элементе, фиксируют наличие потока жидкости [2].A device for determining the presence of a fluid flow is known, which implements a method that fixes the presence of a fluid flow using a flow sensitive element _{χ χ of a} sealed contact controlled by a magnet located on the flow sensitive element [2].

ОСУЩЕСТВЛЕНИЯIMPLEMENTATION

Недостатком этого способа и устройства для его осуществления является ’ то, что фиксируется лишь наличие потока жидкости и не обеспечивается возможность установления факта ее утечки через арматуру в тех случаях, когда потребление жидкости носит случайный характер.The disadvantage of this method and device for its implementation is ’that only the presence of a fluid flow is recorded and it is not possible to establish the fact of its leakage through the valve in cases where the fluid consumption is random.

Цель изобретения — сокращение потерь жидкости путем установления факта утечки жидкости из арматуры потребителя.The purpose of the invention is the reduction of fluid loss by establishing the fact of fluid leakage from consumer valves.

Для достижения поставленной цели определяют длительность непрерывного потребления жидкости, начиная отсчет времени каждый раз с определенного момента, например с начала ее потребления, и по превышению этого времени установленной величины судят о наличии утечки.To achieve this goal, determine the duration of the continuous fluid intake, starting the countdown each time from a certain moment, for example, from the beginning of its consumption, and if this time exceeds the set value, a leak is judged.

В устройстве для осуществления способа указанная цель достигается тем, что оно снабжено электронным блоком, состо- · ящим из инвертора, схемы И и регистра, и датчиком сигналов времени, при этом вход инвертора соединен с датчиком наличия потока, а его выход - с первым вхо— дом схемы И и P-входом регистра, второй вход схемы И соединен с датчиком сигналов времени, а выход схемы И - с С-входом регистра.In the device for implementing the method, this goal is achieved in that it is equipped with an electronic unit consisting of an inverter, an AND circuit and a register, and a time signal sensor, while the inverter input is connected to a flow presence sensor, and its output is connected to the first input - the house of the And circuit and the P-input of the register, the second input of the And circuit is connected to the time signal sensor, and the output of the And circuit is connected to the C-input of the register.

На чертеже представлена структурная схема предлагаемого устройства.The drawing shows a structural diagram of the proposed device.

Устройство содержит датчик-реле 1 потока жидкости, инвертор 2, датчик 3 сигналов времени, схему И 4, регистр 5.The device contains a sensor-relay 1 fluid flow, inverter 2, sensor 3 time signals, circuit And 4, register 5.

Устройство работает следующим образом.The device operates as follows.

При отсутствии потребления жидкости или ее утечки датчик 1, в качестве которого может быть использован датчик, выходной сигнал которого представлен в виде замкнутой или разомкнутой электрической цепи, например сигнализатор потока жидкости, не срабатывает и низким потенциалом с выхода инвертора 2 регистр 5 устанавливается в нулевое положение. При срабатывании датчика 1 на выходе инвертора 2 устанавливается высокий потенциал, разрешающий работу схемы И 4, а после прихода импульса с датчика 3 сигналов времени, в регистр 5 записывается единица. Если к моменту прихода следующего импульса с датчика 3 сигналов времени состояние датчика 1 не изменится, то в регистр.5 будет записана . еше одна единица, если же состояние датчика 1 в промежутке между двум$ импульсами, поступающими с датчика 3 сигналов времени, изменится, что вызвано рерывом в потреблении жидкости,то к менту привода очередного импульса с чика 1 сигналов времени содержимое гистра 5 будет сброшено.In the absence of fluid consumption or leakage, sensor 1, which can be used as a sensor, the output signal of which is presented in the form of a closed or open circuit, for example, a liquid flow warning device, does not work and low potential from the output of inverter 2, register 5 is set to zero . When the sensor 1 is triggered, the output of the inverter 2 sets a high potential, allowing the operation of the And 4 circuit, and after an impulse arrives from the sensor 3 of the time signals, one is written in register 5. If by the time of the arrival of the next impulse from the sensor 3 of the time signals, the state of sensor 1 will not change, then it will be written to register 5. There is one more unit, if the state of sensor 1 in the interval between two $ pulses from the sensor 3 of the time signals changes due to a break in fluid consumption, then by the time the next pulse is pulled from the clock 1 of the time signals, the contents of histogram 5 will be reset.

Таким образом, после прихода Y1 -го импульса с датчика 3 сигналов времени при сработавшем датчике 1 на выходе регистра 5 появляется'сигнал.Thus, after the arrival of the Y1st pulse from the sensor 3 of the time signals with the triggered sensor 1, a signal appears at the output of register 5.

Устанавливая определенный период следования импульсов с датчика 3 сигналов времени, получим, что на выходе регистра сигнал появляется через время *t ~И*Г) _Где Т - период следования импульсов с датчика сигналов времени; VI — число разрядов регистра.By setting a certain pulse repetition period from the sensor 3 time signals, we obtain that the signal appears at the output of the register after a time * t ~ AND * D) _G de T is the pulse repetition period from the time signal sensor; VI - the number of bits of the register.

Следовательно, если время потребления жидкости не превышает величину t_} то происходит сброс содержимого регистра 5 всякий раз по окончании потребления жидкости и сигнал на выходе электронного блока отсутствует.Therefore, if the time of fluid consumption does not exceed the value of t _}, then the contents of the register 5 are reset each time after the end of fluid consumption and there is no signal at the output of the electronic unit.

Использование предлагаемых способа и устройства для его осуществления позволяет осуществлять диспетчерский контроль за водопотреблением и способствует оперативному устранению утечек воды.Using the proposed method and device for its implementation allows dispatching control of water consumption and helps to quickly eliminate water leaks.

Claims

(54) METHOD OF THE INVENTION The invention relates to a measuring and measuring technique and can be used, in particular, in food supply and communal water supply systems for detecting leakages of water supply from filling and filling fittings. There is a known method for determining leakage in pressure pipelines implemented in a device containing amplifiers, matching devices, selective amplifiers, and a control panel 1. However, this method and device has the disadvantage that they cannot be used to prevent leakage. liquid from the armature of the consumer. A device for detecting the presence of a fluid flow is known, which implements a method in which, with a psgcg sensitive element in a sealed contact, a ynpaBR MOi magnet located on the flow sensitive element fixes the fluid flow of the fluid. Disadvantage. This method and device for its implementation is that only the presence of a fluid flow is recorded and it is not possible to establish that it is leaking through the valve in cases where the fluid consumption is random. The circuit of the invention is the reduction of fluid loss by ascertaining the fact of fluid leakage from the consumer fittings. To achieve this goal, the duration of continuous fluid intake is determined, starting the time each time from a certain point, for example, from the beginning of its consumption, and set to exceed this time, the HdR value is judged for leakage leakage. In the device for carrying out the method, the goal is achieved by the fact that it is equipped with an electronic unit consisting of an inverter, an AND circuit and a register, and a time signal sensor, while the inverter input is connected to the flow sensor by its output - to the first input The And and P-input of the register, the second And the input of the AND-circuit is connected to the time signal sensor, and the output of the And-circuit is connected to the O-input of the register. The drawing shows a block diagram of the proposed device. The device contains a sensor-relay 1 for the flow of fluid, an inverter 2, a sensor 3 for time signals circuit AND 4, register 5. The device operates as follows. In the absence of fluid consumption or leakage, sensor 1, which can be used as a sensor, the output signal of which is represented as a closed or open circuit, such as a liquid flow indicator, does not work and the low potential from the output of inverter 2 registers 5 to zero. position. When sensor 1 is triggered, a high potential is established at the output of inverter 2, allowing the operation of the AND 4 circuit, and after the pulse arrives from sensor 3 of time signals, one is recorded in register 5. If at the time of the arrival of the next pulse from sensor 3, the status of sensor 1 does not change in time, then register 5 will be recorded. one more unit, but if the state of sensor 1 in the interval between two impulses coming from sensor 3 of time signals changes due to an interruption in fluid consumption, by the time of the second pulse of sensor 1 of time signals the contents of register 5 will be sbrosheno. Thus, after the arrival of the b-th pulse from the sensor 3 of the time signals with the sensor 1 triggered, a signal appears at the output of register 5. Setting a certain period of following the pulses from the sensor of the time signal 3, we obtain that the signal appears at the output of the regaster time -t where T is the pulse follow-up period with the time signal sensor; VI is the number of register bits. Consequently, if the time of fluid consumption does not exceed the value of t, then 5 the register contents 5 are reset every time after the end of the fluid intake and there is no signal at the output of the electronic unit. Using the proposed method and device for its implementation allows dispatching control over water consumption and contributes to the rapid elimination of water leaks. Claim 1. A method for determining the leakage of a liquid, mainly from the water fitting and filling fittings, to the consumer, which means that with a flow-sensitive sensor with a predetermined trigger threshold, the presence of a fluid flow in the pipeline is detected, characterized in that liquid losses by establishing the fact of its leakage at the consumer, determine the duration of the continuous consumption of liquid, starting the time from a certain point and by exceeding this time Meni soup set value m of a leak. 2. A device for carrying out the method of claim 1, comprising a sensor detecting the presence of a fluid flow with a predetermined threshold, characterized in that it is equipped with an electronic unit consisting of an HHBepiw torus, an AND register and a time signal sensor In this case, the inverter input is connected to the flow presence sensor, and its output is connected to the first input of the AND circuit and the P input of the register, the second input of the AND circuit is connected to the time signal sensor, and the input of the AND circuit is connected to the C input of the register. Sources of information taken into account during the examination 1. USSR author's certificate No. 505852, cl. F 17 D 3/04, 1973.

2. USSR author's certificate number 434262, cl. Q O1 P 13 / OO, 1972.