Device for signaling the presence of oil in the condensate

 

(57) Abstract:

Ispolzovanie: when determining the liquid level, and more precisely in the alarms section of the phase viscous oil and condensate tanks. The aim of the invention is to obtain information about the presence of a film of oil and its limit value. The inventive device includes an adjustable-height sensor 3 levels of condensate, electronic amplifier 7, the indicator 8, the electronic logic 9, pin float sensor level 5, emergency signalling device 11 and power supply 10. 3-7-9-11, 5-9, 7-8, 10-8. 3 C. p. F.-ly, 3 ill.

The invention relates to the field of determining fluid levels, namely the alarms section of the phase viscous oil and condensate tanks, mostly in the condensate gathering tanks for thermal plants running on heavy fuel oil.

Closest to the present invention is a device for signalling the level of the bottom water in the tanks with petroleum products, based on different conductivity environments. The device comprises a height-adjustable sensor tube of electrically conductive material, indicator light, electronic amplifier and power supply. The sensor tube is electrically isolated from the reservoir is S="ptx2">

However, in dynamic processes, where the accumulation of a film of oil occurs gradually, for example in the condensate gathering tanks mazutonasosnoy thermal power plants, such a device will respond to the partition phase water-oil, but will not give information about the presence of a film of oil. In practice there are cases of penetration of the oil into the drain line, which leads to additional costs for wastewater treatment facilities of the station.

The aim of the invention is to expand the range of use of the device by receiving information about the presence of the marginal value of a film of oil in the condensate.

The application of the proposed device will allow, firstly, to prevent the penetration of oil into the drain line, and secondly, to obtain information about the accumulation of a film of fuel oil limit values that will allow you to take timely measures to remove oil from the condensate and find out the reasons of its appearance.

The invention consists in that the signaling level of the condensate in the condensate (COP), containing the gauge condensate made of electrically driven material, electronic amplifier, the light indicator and the block p is okoboi, the detector, in this case the level sensor condensate made height adjustable, electrically isolated from the condensate and is electrically connected to the input e of the amplifier, the output of which through the indicator light is connected with the power supply and with ELS, in addition, one contact of the float sensor is connected with a COP, the other input ELS, the output of which is connected to the alarm signalling device.

ELS made in the form of the second circuit and NOT connected sequentially to a first schema, the first circuit And the third circuit does NOT, the second circuit And the third circuit And to the second input of which is connected to the output of the second circuit is NOT connected with a second input of the first circuit And the input of the second circuit is NOT the first input of the ELS, and the first input of the second circuit And the input of the first circuit are NOT United and are the second entrance ELS, the output of which is the output of the third circuit And.

Float level sensor is made adjustable in height relative to the condensation sensor and provided with a limiter.

In Fig. 1 schematically shows the device of Fig.2 - electronic logic circuit (ELS) of Fig.3 - operational state of the device under various situations.

The condensate 1 has a drain is logically connected to the input e of the amplifier 7, the output of which is connected to the light indicator 8 and to the input of the ELS 9. Indicator light (led) 8 is connected to the unit 10 of the power supply. Float sensor 5, made in the form of a liquid, for example mercury, the level sensor with two contacts mounted on the sensor 3 condensate can be moved and locked relative to his height. Float sensor 5 has a limiting bar 6 mounted on the condensation sensor with the ability to move and capture in height relative to the sensor 3. One contact sensor 5 is connected to COP 1, the other is isolated from it and connected to the input ELS 9, the output of which is connected to the emergency signaling device 11.

Electronic logical circuit 9 (Fig.2) contains the second scheme is NOT 13 and connected in series to the first circuit 12, the first schema And 15, the third circuit 14, a second circuit And 16 and the third circuit And 17, to the second input of which is connected to the output of the second circuit is NOT 13, which is connected with a second input of the first circuit And 15, and the input of the second circuit 13 is NOT the first entrance ELS, and the first input of the second circuit And 6 and the first input circuit 12 are combined and a second input ELS, the output of which is the output of the third circuit And 17.

The device works with the SATA (K) with a film of oil (M), if it is, is in the top position. In this case, the first closed circuit: sensor 3 condensate - condensate - KS 1 unit 10 power - led 8 - amp 7 - gauge 3 condensate. 8 led lights. At the first sign ELS 9 connected to the sensor 3 condensate level (DUK), served a single signal through the amplifier 7. Closed a second electrical circuit: unit 10 power -- ELS 9 contacts the float sensor 5 - KS 1 unit 10 power. To the second input of ELS 9 is also fed to a single signal, its output signal is missing, the emergency signaling device 11 does not work.

Situation II. Condensate To the slit to the lower limit level. The first electrical circuit is interrupted, the led 8 is extinguished. Since the film mazut M is absent, float sensor 5 lies on the bounding bar 6 and its contacts open, thus de-energized, a second electrical circuit. In this case, the first and second inputs ELS 9 missing signals. Input and its output. Therefore, the emergency signaling device 11 does not work.

Situation III. Condensate To the slit to the lower limit level. The first electrical circuit is de-energized, the indicator 8 is extinguished. As the oil film M goticheskuyu chain, then on the first input ELS 9 no signal, and the second input there is a single signal as the second electrical circuit is closed. Therefore, the output ELS 9 you receive a single signal that includes emergency signalling device 11, which warns the operator of the need to switch drain line on the inside line, to avoid draining the oil in the sewage treatment station.

1. DEVICE FOR SIGNALING the PRESENCE of OIL IN the CONDENSATE, containing adjustable height level sensor condensate, made in the form of a tube or rod of electrically conductive material and is connected through an amplifier to the light indicator is connected to the power supply unit, characterized in that it introduced two-wire float level sensor and connected in series electronic logic circuitry and the alarm header, with one contact of the float level sensor connected to the housing of the condensate, and the other contact is isolated from it and connected to the first input of the electronic logic circuit, the second input of which is connected to the output of the amplifier.

2. The device under item 1, characterized in that the electronic logic circuit designed in the form of veromia schemes And, to the second input of which is connected to the output of the second circuit is NOT connected with a second input of the first circuit And the input of the second circuit is NOT the first input of the electronic logic circuit and the first input of the second circuit And the input of the first circuit are NOT United and are the second input of the electronic logic circuit, the output of which is the output of the third circuit And.

3. The device under item 1, characterized in that the float level sensor is arranged to move along the level sensor condensate and fixation due to limiter installed on the gauge condensate.

4. The device under item 1, characterized in that the emergency signaling device made in the form of a buzzer.

 

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