CN217006004U

CN217006004U - Multi-liquid level measuring meter

Info

Publication number: CN217006004U
Application number: CN202220681235.1U
Authority: CN
Inventors: 尤学民; 刘跃; 赵昱
Original assignee: Xinjiang Yuhua Petrochemical Co ltd
Current assignee: Xinjiang Yuhua Petrochemical Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-19
Anticipated expiration: 2032-03-24

Abstract

The utility model provides a multi-liquid-level measuring meter, and belongs to the technical field of oil tank liquid level measurement. The device comprises a first liquid level meter and a second liquid level meter, wherein the first liquid level meter is communicated with the oil tank through an upper connecting pipe, a middle connecting pipe and a lower connecting pipe, the second liquid level meter is communicated with the first liquid level meter through a first branch pipe, a second branch pipe and a third branch pipe from top to bottom, the first liquid level meter and the second liquid level meter are arranged at the same height, and the height of the first liquid level meter is not less than that of the second liquid level meter. The multi-liquid-level measuring meter is mainly used for measuring the liquid level of liquid in an oil tank, and can ensure that the first liquid level meter has higher measuring accuracy by regularly adopting the second liquid level meter to compare with the first liquid level meter for verification, thereby realizing the accurate measurement of the liquid level of layered liquid in the oil tank.

Description

Multi-liquid level measuring meter

Technical Field

The utility model belongs to the technical field of oil tank liquid level measurement, and particularly relates to a multi-liquid-level measuring meter.

Background

The oil tank is storage equipment commonly required by oil field refineries, oil depots, oil wharfs and petrochemical enterprises, and for a liquid medium (petrochemical product) in the tank, parameters such as liquid level, temperature, density and bed pressure (pressurized storage tank) of the liquid medium are mainly measured, so that the volume and mass reserves of the discharged storage liquid are calculated. The oil tank is generally divided into an intermediate tank and a trade tank, the intermediate tank only monitors parameters such as liquid level, temperature, pressure (pressurized storage tank) and the like to prevent the oil tank from roof collapse, vacuum pumping and other accidents, and the monitoring and metering are not required to be handed over; the liquid level, temperature, density, volume and quality of the medium in the trading tank must be monitored and measured frequently, and the precision requirement is very high. The performance characteristics of level gauges used for different sizes and types of tanks vary. Therefore, according to the needs of users and investment requirements, the liquid level meter is reasonably selected so as to achieve reasonable cost performance.

The magnetic turning plate liquid level meter is a product which is developed and produced according to the standard HG/T21584-95 of the magnetic liquid level meter issued by the Ministry of chemical industry and is improved by digestion according to similar products at home and abroad. The instrument can be used for detecting the liquid level of media of various devices such as towers, tanks, troughs, spherical containers, boilers and the like. It is suitable for various environments from low temperature to high temperature, vacuum to high pressure, etc., and is an ideal liquid level measuring product for industrial departments of petroleum, chemical engineering, etc. According to different installation positions in the container, two forms of side installation and top installation are provided. According to different working media, three materials of stainless steel, ABS and PP-R engineering plastics are provided, wherein the ABS and PP-R materials are suitable for corrosive media such as acid, alkali and the like. According to different structural characteristics, the device comprises a basic type, an electric remote transmission and an upper limit switch and a lower limit switch. The basic type is that according to the buoyancy principle, a floater moves up and down in a measuring pipe along with the lifting of liquid level, permanent magnet steel in the floater drives a red column and a white column to turn over by 180 degrees through the coupling effect, the column turns from white to red when the liquid level rises, and turns from red to white when the liquid level falls, so that the liquid level indication is realized.

Along with the long-term use of the magnetic turnover plate liquid level meter for measuring the liquid level in the oil tank, various heavy metals and impurities contained in the oil tank easily damage the liquid level meter, the service life and the measurement precision are influenced, and the measurement of the liquid level meter is not accurate enough.

Disclosure of Invention

The utility model aims to provide a multi-liquid-level measuring meter, which is used for solving the technical problem that whether the measuring result is accurate or not cannot be determined due to long-term use of the conventional magnetic turning plate liquid level meter for measuring the liquid level of an oil tank and realizing accurate measurement of the liquid level of stratified liquid in the oil tank.

In order to achieve the purpose, the technical scheme provided by the utility model is that the multi-liquid-level measuring meter comprises a first liquid level meter and a second liquid level meter, wherein the first liquid level meter is communicated with an oil tank through an upper connecting pipe, a middle connecting pipe and a lower connecting pipe, the second liquid level meter is communicated with the first liquid level meter through a first branch pipe, a second branch pipe and a third branch pipe from top to bottom, the first liquid level meter and the second liquid level meter are arranged at the same height, and the height of the first liquid level meter is not less than that of the second liquid level meter.

Furthermore, an upper control valve, a middle control valve and a lower control valve are respectively arranged on the upper connecting pipe, the middle connecting pipe and the lower connecting pipe.

Furthermore, a first valve, a second valve and a third valve are respectively arranged on the first branch pipe, the second branch pipe and the third branch pipe.

Further, first level gauge includes first flotation pontoon, is equipped with the first magnetism float that can float from top to bottom along with liquid in the first flotation pontoon, and first flotation pontoon outer wall front side is fixed with first magnetism and turns over the board indicator, and first magnetism turns over the board indicator and matches with first magnetism float, and first flotation pontoon bottom is connected with first blow-off pipe, sets up first blowoff valve on the first blow-off pipe, and the bottom is provided with first buffer spring in the first flotation pontoon.

Further, the second liquid level meter comprises a second float bowl, a second magnetic float capable of floating up and down along with liquid in the second float bowl is arranged in the second float bowl, a second magnetic turning plate indicator is fixed on the front side of the outer wall of the second float bowl, the second magnetic turning plate indicator is matched with the second magnetic float, a second blow-off pipe is connected to the bottom of the second float bowl, a second blow-off valve is arranged on the second blow-off pipe, a lower buffer spring is arranged at the bottom in the second float bowl, and an upper buffer spring is arranged at the top in the second float bowl.

Preferably, the first buffer spring, the lower buffer spring and the upper buffer spring are all made of hydrogenated nitrile rubber.

Preferably, the first buffer spring, the lower buffer spring and the upper buffer spring have an i-shaped longitudinal section.

The utility model has the beneficial technical effects that: the multi-liquid-level measuring meter is mainly used for measuring the liquid level of liquid in an oil tank, and can ensure that the first liquid level meter has higher measuring accuracy by regularly adopting the second liquid level meter to compare and verify with the first liquid level meter, so that the accurate measurement of the liquid level of stratified liquid in the oil tank can be realized.

Drawings

FIG. 1 is a front view of a multiple level gauge in one embodiment of the present invention;

FIG. 2 is a right side view of a multiple level gauge in one embodiment of the present invention;

FIG. 3 is a left side view of a multiple level gauge in one embodiment of the present invention;

reference numerals: 1-a first liquid level meter, 1001-a first buoy, 1002-a first magnetic turn plate indicator, 1003-a first magnetic float, 1004-a first buffer spring, 1005-an upper connecting pipe, 1006-a middle connecting pipe, 1007-a lower connecting pipe, 1008-an upper control valve, 1009-a middle control valve, 1010-a lower control valve, 1011-a first blow-down pipe, 1012-a first blow-down valve, 2-a second liquid level meter, 2001-a second buoy, 2002-a second magnetic turn plate indicator, 2003-a second magnetic float, 2004-a lower buffer spring, 2005-an upper buffer spring, 2006-a second blow-down pipe, 2007-a second blow-down valve, 3-a first branch pipe, 4-a first valve, 5-a second branch pipe, 6-a second valve, 7-a third branch pipe, 8-third valve.

Detailed Description

The technical solutions of the present invention are clearly and completely explained below with reference to the drawings of the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments.

Examples

Referring to fig. 1-3, the multi-level gauge of the present embodiment includes a first level gauge 1 and a second level gauge 2, the first level gauge 1 is connected to an oil tank through an upper connection pipe 1005, a middle connection pipe 1006, and a lower connection pipe 1007, the second level gauge 2 is connected to the first level gauge 1 through a first branch pipe 3, a second branch pipe 5, and a third branch pipe 7 from top to bottom, the first level gauge 1 and the second level gauge 2 are disposed at equal height, and the height of the first level gauge 1 is not less than the height of the second level gauge 2.

Specifically, an upper control valve 1008, a middle control valve 1009 and a lower control valve 1010 are respectively arranged on the upper connecting pipe 1005, the middle connecting pipe 1006 and the lower connecting pipe 1007; the first valve 4, the second valve 6 and the third valve 8 are respectively arranged on the first branch pipe 3, the second branch pipe 5 and the third branch pipe 7, and the arrangement of the first branch pipe 3, the second branch pipe 5 and the third branch pipe 7 can reduce or prevent liquid in the first liquid level meter 1 from rapidly impacting the second magnetic float 2003 after flowing into the second liquid level meter 2.

Specifically, first level gauge 1 includes first flotation pontoon 1001, is equipped with the first magnetism float 1003 that can float from top to bottom along with liquid in the first flotation pontoon 1001, and first flotation pontoon 1001 outer wall front side is fixed with first magnetism and turns over board indicator 1002, and first magnetism turns over board indicator 1002 and matches with first magnetism float 1003, and first flotation pontoon 1001 bottom is connected with first blow off pipe 1011, sets up first blowoff valve 1012 on the first blow off pipe 1011, and the bottom is provided with first buffer spring 1001 in the first flotation pontoon.

Specifically, the second liquid level meter 2 includes a second float bowl 2001, a second magnetic float 2003 capable of floating up and down along with liquid in the second float bowl 2001 is arranged in the second float bowl 2001, a second magnetic plate-turning indicator 2002 is fixed on the front side of the outer wall of the second float bowl 2001, the second magnetic plate-turning indicator 2002 is matched with the second magnetic float 2003, a second sewage discharge pipe 2006 is connected to the bottom of the second float bowl 2001, a second sewage discharge valve 2007 is arranged on the second sewage discharge pipe 2006, a lower buffer spring 2004 is arranged at the bottom of the second float bowl 2001, and an upper buffer spring 2005 is arranged at the inner top of the second float bowl 2001.

In this embodiment, the first buffer spring 1004, the lower buffer spring 2004 and the upper buffer spring 2005 are all made of hydrogenated nitrile rubber, and the first buffer spring 1004, the lower buffer spring 2004 and the upper buffer spring 2005 have an i-shaped longitudinal section.

In order to facilitate the pollution discharge through the first sewage discharge pipe 1011 and the second sewage discharge pipe 2006, the first buffer spring 1004 and the lower buffer spring 2004 which are made of hydrogenated nitrile rubber are provided with a plurality of longitudinal through holes at the periphery of the center in addition to a longitudinal through hole at the center, the longitudinal through hole of the first buffer spring 1004 is communicated with the first sewage discharge pipe 1011, and the longitudinal through hole of the lower buffer spring 2004 is communicated with the second sewage discharge pipe 2006.

The working temperature of the multi-level gauge of the embodiment is normal temperature, the rated temperature is 80 ℃, the working pressure is 0.6MPa, the rated pressure is 1.0MPa, the first buoy 1001 and the second buoy 2001 are made of SUS304, the first magnetic floater 1003 and the second magnetic floater 2003 are made of SUS316, and the flange is made of SUS 304.

When measuring the liquid level, the density of the liquid medium is 960kg/m³(ii) a When measuring the boundary level, the density of the liquid medium is 960/1450kg/m³。

The first buoy 1001 is communicated with the oil tank through the opening of the upper control valve 1008, the middle control valve 1009 and the lower control valve 1010, the first magnetic floater 1003 rises or falls along with the liquid level in the first buoy 1001, the turning plate in the first magnetic turning plate indicator 1002 turns over under the magnetic coupling effect with the first magnetic floater 1003, and therefore the liquid level or the interface is displayed, and the scale marks are arranged on the panel of the first magnetic turning plate indicator 1002 to facilitate reading; the second float 2001 is communicated with the first float 1001 through the opening of the first valve 4, the second valve 6 and the third valve 8, and the measurement accuracy of the first liquid level meter 1 is verified by comparing the liquid level readings on the first magnetic flip plate indicator 1002 panel and the second magnetic flip plate indicator 2002 panel with each other.

All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention. It will be appreciated by those skilled in the art that the foregoing embodiments are provided to illustrate the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model.

Claims

1. A multi-liquid-level measuring meter comprises a first liquid level meter and a second liquid level meter, and is characterized in that: the first liquid level meter is communicated with the oil tank through an upper connecting pipe, a middle connecting pipe and a lower connecting pipe, the second liquid level meter is communicated with the first liquid level meter through a first branch pipe, a second branch pipe and a third branch pipe from top to bottom, the first liquid level meter and the second liquid level meter are arranged at the same height, and the height of the first liquid level meter is not less than that of the second liquid level meter.

2. The multi-level gauge of claim 1, wherein: and the upper connecting pipe, the middle connecting pipe and the lower connecting pipe are respectively provided with an upper control valve, a middle control valve and a lower control valve.

3. The multi-level gauge of claim 1, wherein: and the first branch pipe, the second branch pipe and the third branch pipe are respectively provided with a first valve, a second valve and a third valve.

4. The multi-level gauge of claim 1, wherein: the first liquid level meter comprises a first float bowl, a first magnetic floater capable of floating up and down along with liquid in the first float bowl is arranged in the first float bowl, a first magnetic turning plate indicator is fixed on the front side of the outer wall of the first float bowl, the first magnetic turning plate indicator is matched with the first magnetic floater, a first drain pipe is connected to the bottom of the first float bowl, a first drain valve is arranged on the first drain pipe, and a first buffer spring is arranged at the bottom in the first float bowl.

5. The multi-level gauge of claim 4, wherein: the second liquid level meter comprises a second float bowl, a second magnetic float capable of floating up and down along with liquid in the second float bowl is arranged in the second float bowl, a second magnetic turning plate indicator is fixed on the front side of the outer wall of the second float bowl and matched with the second magnetic float, a second blow-off pipe is connected to the bottom of the second float bowl, a second blow-off valve is arranged on the second blow-off pipe, a lower buffer spring is arranged at the bottom in the second float bowl, and an upper buffer spring is arranged at the top in the second float bowl.

6. The multi-level gauge of claim 5, wherein: the first buffer spring, the lower buffer spring and the upper buffer spring are all made of hydrogenated nitrile rubber.

7. The multi-level gauge of claim 5, wherein: the longitudinal sections of the first buffer spring, the lower buffer spring and the upper buffer spring are I-shaped.