SU873131A1 - Directional liquid microflow indicator - Google Patents

Description

The recording device is designed as a pressure sensor.

Fig. 1 is a diagram of a directional flow signaling device detector, the first option; on league. 2. The same, the second variable.

The device (Fig. 1) contains 1, made in the form of a caisson chamber with an inlet 2 and an outlet 3 pipes, a sensitive element in the form of a float 4 floating in a caisson chamber 1% 1 with an accumulative capacity of 5 mounted on it. The sensing element is equipped with a minimum limiter fluid flow in the form of a hole d and a permanent magnet 6 of the recording device 7. The feed pipe 2 is equipped with a trap 8 ...

The operation of the detector (Fig. Is carried out in the following way.

When a controlled flow of fluid appears in the supply pipe 2, the latter enters the accumulation tank 5 of the float 4, where, accumulating, it creates a force due to its weight, directed vertically downwards, and moves the float 4 in the same direction until the reed switch of the recording device 7 under the action of a magnet b. With the flow directed in the opposite direction, the air from the air cavity of the decompression chamber 1 is displaced through the inlet pipe 2 into the trap 8, where it is held until the flow of liquid of the detected direction is removed, after which the inlet pipe 2 is again forced out into the decompression chamber 1.

FIG. Figure 2 shows a liquid directional indicator, in which the storage tank is made in the form of a vertically installed pipe connected to a pressure measuring device. A second embodiment of the directional liquid microflow indicator (Fig. 2) includes the same structural elements as the first version (Fig . one). The difference lies in the fact that the storage tank 5 has the shape of a pipe, vertically installed in the housing I, and the recording device is a pressure sensor 9.

The operation of the detector of the second embodiment (Fig. 2) is performed as follows.

The recorded fluid accumulates in the storage tank 5, as a result of which the hydrostatic pressure rises at its bottom, which is recorded by a recording device — pressure sensor 9.

J3 of the proposed signaling device has no friction nodes, which excludes the possibility of disrupting its operation. In addition, the housing, made in the form of a caisson chamber, allows its use in closed hydraulic systems under pressure, which is very important in the conditions of long-term storage of liquids.

Claims (3)

1. An indicator of a directed microflow of a liquid, comprising a housing with inlet and outlet pipes, a sensitive element, a recording device and a minimum flow limiter, characterized in that, in order to ensure its operation under conditions of low temperatures p and in a closed hydraulic system, supply pipe it is equipped with a trap, the housing is made in the form of a caisson chamber, in which a sensitive element is placed with a cumulative capacity associated with Q recording device. 2. The alarm device according to claim 1, about t. L. And that the sensitive element is made of a float, while the recording device is made of a fixed magnet and a reed switch placed at the bottom of the caisson KaKfepB mounted at the bottom of the float. 3. The alarm device according to claim 1, which is sensible by the fact that the sensor is 0 (the shy element is made in the form of a vertically installed pipe, the upper end of which is connected to the inlet pipe, and the lower one is fixed on the bottom of the coffered chamber, while registering hands configured as a pressure sensor. Sources of information taken into account in the examination 1. US patent 3653260, - cl. 73-228 ,. 1972. 2. Authors certificate of the USSR 558155, cl. G 01 F 1/00, 1973. 3. Authors certificate of the USSR 236050, cl. G 01 F1 / On, 1971 (prototype).