CN217465907U - Heavy oil tank liquid level detection device - Google Patents
Heavy oil tank liquid level detection device Download PDFInfo
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- CN217465907U CN217465907U CN202221183916.1U CN202221183916U CN217465907U CN 217465907 U CN217465907 U CN 217465907U CN 202221183916 U CN202221183916 U CN 202221183916U CN 217465907 U CN217465907 U CN 217465907U
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- China
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- heavy oil
- oil tank
- liquid level
- drain
- pressure transmitter
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Abstract
The utility model relates to a heavy oil tank liquid level detection device, including drain and pressure transmitter, the drain setting on the heavy oil tank and with the inside intercommunication of heavy oil tank, the drain is connected with pressure transmitter through isolating the container, isolating container and drain intercommunication, isolating the container and being used for keeping apart oil in the heavy oil tank and pressure transmitter and transmitting pressure, pressure transmitter is connected with the controller. The purpose is to detect the heavy oil pressure at a certain position of a heavy oil tank by utilizing the relation between the liquid pressure and the height and using a pressure transmitter so as to obtain the liquid level of the heavy oil tank.
Description
Technical Field
The utility model belongs to the technical field of the liquid level detection, concretely relates to heavy oil tank liquid level detection device.
Background
In a heavy oil power station project, an ultrasonic liquid level meter is usually used for detecting the liquid level of a heavy oil tank, but the heavy oil in the oil tank needs to be kept at a temperature of about 50 ℃ because the heavy oil needs to be heated to enhance the mobility of the heavy oil, and at the temperature, the liquid level detection of the ultrasonic liquid level meter is seriously influenced by oil mist generated in the oil tank, so that the ultrasonic liquid level meter has large signal change during detection and sometimes does not have the effect of accurate measurement; the magnetic turning plate liquid level meter is inaccurate in liquid level display detection due to the large viscosity of heavy oil.
SUMMERY OF THE UTILITY MODEL
In order to solve in the heavy oil tank, the level gauge detects unsafe problem, the utility model provides a heavy oil tank liquid level detection device, the device utilize liquid pressure and the relation of height (P ═ ρ gh), use pressure transmitter, detect the heavy oil pressure of a certain position of heavy oil tank to obtain heavy oil tank liquid level, this detection device easily installs, has avoided the influence of factors such as oil mist to detecting element, reliable and stable in practical application.
The utility model adopts the technical proposal that: the utility model provides a heavy oil tank liquid level detection device, includes drain and pressure transmitter, the drain sets up on the heavy oil tank and with the inside intercommunication of heavy oil tank, the drain is connected with pressure transmitter through isolating the container, isolating container and drain intercommunication, isolating the container and being used for keeping apart oil in the heavy oil tank and pressure transmitter and transmitting pressure, pressure transmitter is connected with the controller.
Preferably, the accommodating cavity in the isolation container is divided into an oil cavity and a water cavity, the volume of the water cavity is larger than that of the oil cavity, the oil cavity is positioned above the water cavity, the oil cavity is communicated with the water cavity, and the oil cavity is communicated with a sewage draining outlet.
Preferably, the isolation container is provided with a water filling port and a water discharging port, the water filling port is positioned above the isolation container, and the water discharging port is positioned below the isolation container.
Preferably, the water cavity is communicated with the pressure transmitter through a valve.
Preferably, the sewage draining port is communicated with a magnetic turning plate liquid level meter, and the magnetic turning plate liquid level meter is arranged on the side wall of the heavy oil tank.
Preferably, a drain valve is arranged between the drain outlet and the magnetic turning plate liquid level meter.
The utility model discloses following beneficial effect has: the utility model uses the relation between the liquid pressure and the height (P ═ rho gh), uses the pressure transmitter, and calculates the liquid level height by detecting the liquid level pressure of the heavy oil tank; the utility model discloses utilize former heavy oil tank magnetism to turn over board level gauge drain and regard as pressure transmitter's signal acquisition point to utilize the isolation container, pass through the heavy oil of heavy oil tank side pure water and keep apart with pressure transmitter, final contact pressure transmitter's medium is the pure water, has avoided pressure transmitter detecting element to receive heavy oil pollution or damage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a top view of the structure of the present invention.
In the figure: 1-a heavy oil tank; 2-magnetic turning plate liquid level meter; 3-a blowdown valve; 4-a sewage draining outlet; 5-isolating the container; 6-oil chamber; 7-a water cavity; 8-a water outlet; 9-a valve; 10-a pressure transmitter; and 11-a water filling port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the heavy oil tank liquid level detection device comprises a sewage outlet 4 and a pressure transmitter 10, wherein the sewage outlet 4 is arranged on the heavy oil tank 1 and is communicated with the inside of the heavy oil tank 1, a new sewage outlet 4 can be arranged, in the embodiment, the sewage outlet on the original magnetic turning plate liquid level meter 2 is preferably directly used, and the magnetic turning plate liquid level meter 2 is arranged on the side wall of the heavy oil tank 1 and is communicated with the heavy oil tank 1.
The drain 4 is connected with the pressure transmitter 10 through the isolation container 5, the isolation container 5 is communicated with the drain 4, the isolation container 5 is used for isolating oil in the heavy oil tank 1 from the pressure transmitter 10 and transmitting pressure, and the pressure transmitter 10 is connected with the controller. It can be understood that the pressure transmitter 10 converts the pressure signal into a 4-20mA electrical signal, and transmits the signal to the controller, and the controller can calculate the liquid level in the heavy oil tank 1 according to the relationship between the liquid pressure and the height (P ═ ρ gh).
In order to protect pressure transmitter 10's detection diaphragm not receive the pollution or the damage of the temperature of heavy oil and viscosity, the utility model discloses well adoption isolation container 5 keeps apart, the chamber that holds in the isolation container 5 divide into oil pocket 6 and water cavity 7, the volume of water cavity 7 is greater than the volume of oil pocket 6, oil pocket 6 is located water cavity 7 top, oil pocket 6 and water cavity 7 intercommunication, oil pocket 6 and drain 4 intercommunication, the heavy oil of oil tank side give pure water with pressure transfer in isolation container 5, and pressure transmitter 10 is given with pressure to the pure water again, reaches the effect of transmission pressure.
The isolation container 5 is provided with a water filling port 11 and a water discharging port 8, the water filling port 11 is positioned above the isolation container 5, and the water discharging port 8 is positioned below the isolation container 5. The water filling port 11 is used for filling water into the isolation container 5 before measurement, and the water discharging port 8 is used for discharging liquid in the isolation container 5 when the use is finished or the replacement is needed.
The water cavity 7 is communicated with the pressure transmitter 10 through a valve 9. And a drain valve 3 is arranged between the drain outlet 4 and the magnetic turning plate liquid level meter 2. By providing the valve 9 and the waste valve 3, the flow of liquid can be controlled.
The specific working mode is as follows: the lower end of a drain outlet 4 of a crude oil tank magnetic turning plate liquid level meter 2 is connected to an inlet of an isolation container 5 through a stainless steel pipe (the length is as short as possible under the condition of convenient installation), an outlet of the isolation container 5 is connected to a pressure transmitter 10 through a valve 9, a crude ultrasonic signal line is connected to the pressure transmitter 10 and is connected to a controller, and the controller can calculate the liquid level height in the heavy oil tank 1 according to the relation between the liquid pressure and the height.
Before the device is used, firstly, adding more than half pure water into the isolation container 5 from the water filling port 11, wherein the volume of the added pure water needs to be larger than the volume of oil in the isolation container 5, opening the drain valve 3, introducing heavy oil into the isolation container 5 (the heavy oil automatically flows into the isolation container 5 due to gravity), detecting the pressure of the heavy oil at the drain outlet 4 of the magnetic turning plate liquid level 2 meter, and because the drain outlet 4 is communicated with the heavy oil tank 1, the pressure at the position is consistent with the pressure at the same height with the magnetic turning plate drain outlet 4 in the heavy oil tank 1. The resulting liquid level in the heavy oil tank 1 is: the sum of the height of the drain 4 and the calculated height (P/ρ g).
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and any changes and combinations made to the above embodiments are within the scope of the present invention as long as they are within the spirit of the present invention.
Claims (6)
1. A heavy oil tank liquid level detection device which characterized in that: including drain (4) and pressure transmitter (10), drain (4) set up on heavy oil tank (1) and with the inside intercommunication of heavy oil tank (1), drain (4) are connected with pressure transmitter (10) through isolation container (5), isolation container (5) and drain (4) intercommunication, isolation container (5) are used for isolating oil in heavy oil tank (1) and pressure transmitter (10) and transmit pressure, pressure transmitter (10) are connected with the controller.
2. The heavy oil tank level detection apparatus according to claim 1, characterized in that: the holding cavity in the isolation container (5) is divided into an oil cavity (6) and a water cavity (7), the volume of the water cavity (7) is larger than that of the oil cavity (6), the oil cavity (6) is positioned above the water cavity (7), the oil cavity (6) is communicated with the water cavity (7), and the oil cavity (6) is communicated with the sewage draining outlet (4).
3. The heavy oil tank level detection apparatus according to claim 2, characterized in that: the water filling device is characterized in that a water filling port (11) and a water discharging port (8) are arranged on the isolation container (5), the water filling port (11) is located above the isolation container (5), and the water discharging port (8) is located below the isolation container (5).
4. The heavy oil tank level detection device of claim 3, wherein: the water cavity (7) is communicated with the pressure transmitter (10) through a valve (9).
5. The heavy oil tank level detection apparatus according to claim 4, characterized in that: the sewage draining port (4) is communicated with the magnetic turning plate liquid level meter (2), and the magnetic turning plate liquid level meter (2) is arranged on the side wall of the heavy oil tank (1).
6. The heavy oil tank level detection apparatus according to claim 5, characterized in that: a drain valve (3) is arranged between the drain outlet (4) and the magnetic turning plate liquid level meter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221183916.1U CN217465907U (en) | 2022-05-17 | 2022-05-17 | Heavy oil tank liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221183916.1U CN217465907U (en) | 2022-05-17 | 2022-05-17 | Heavy oil tank liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217465907U true CN217465907U (en) | 2022-09-20 |
Family
ID=83275982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221183916.1U Active CN217465907U (en) | 2022-05-17 | 2022-05-17 | Heavy oil tank liquid level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217465907U (en) |
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2022
- 2022-05-17 CN CN202221183916.1U patent/CN217465907U/en active Active
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