CN213397272U

CN213397272U - Digital display type oil-water interface instrument and oil storage tank

Info

Publication number: CN213397272U
Application number: CN202022751093.5U
Authority: CN
Inventors: 王钧洋
Original assignee: Sichuan Jurong Huimingxin Technology Co ltd
Current assignee: Sichuan Jurong Huimingxin Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-06-08
Anticipated expiration: 2030-11-25

Abstract

The utility model relates to a numerical display oil-water interface appearance and oil storage tank, this interface appearance are applied to in this oil storage tank, include: the device comprises an interface floating block, a balancing device, a pulley device and a magnetostrictive liquid level indicator; the magnetostrictive liquid level indicator comprises: the electronic chamber can generate a current pulse signal; the magnetostrictive pipe is made of magnetostrictive materials, is used for transmitting pulse signals and is connected with the electronic chamber; the floater is freely sleeved on the magnetostrictive tube, is connected with the balancing device, can float up and down along with the balancing device and is always consistent with the height of the balancing device; the display has a digital display function and is used for displaying the position of an oil-water interface; the magnetostrictive liquid level indicator is used for measuring the position of the balancing device and accurately displaying the position of an oil-water interface through calculation. The utility model discloses simple structure, convenient to use just has the digital display function, can reduce workman's work load, improves work efficiency.

Description

Digital display type oil-water interface instrument and oil storage tank

Technical Field

The utility model relates to a petroleum engineering technical field, in particular to digital display oil-water interface appearance and oil storage tank.

Background

The oil-water interface instrument is widely applied to the process flow of industrial departments such as petroleum, petrochemical industry and the like. The method has important significance for safe and efficient production by accurately measuring the position of the oil-water interface in each process through the oil-water interface instrument. And the detection of the oil-water interface is very important for oil-gas transportation, treatment and extraction. If the detection of the oil-water interface is inaccurate, various faults of downstream oil-water treatment equipment caused by standard exceeding of indexes can be caused, and even major safety production accidents can occur.

A plurality of oil-water interface detection devices in the prior art have certain problems. For example, the common float-type interface meter has high processing difficulty, and the float density is difficult to be ensured to be between the oil-water density; the servo interface meter is used for easily breaking a transmission steel belt in the using process; the differential pressure type interface detector is easily influenced by the external environment and belongs to an indirect measurement mode, so that the maintenance amount is large and the precision is not high; the optical fiber type interface detector is greatly influenced by factors such as medium adhesion, temperature change and the like; the magnetostrictive interface detector belongs to contact measurement, and is not suitable for high-viscosity and easily-bonded substances such as crude oil and the like because a floater is still used; the ultrasonic interface detector is limited by the distance between the sending and receiving ultrasonic waves, so that the measurement precision is reduced, and the oil quantity of the oil storage tank cannot be measured; the capacitance type oil-water interface detection device is easily influenced by factors such as working temperature, humidity, pressure, electrode corrosion and the like, and the measurement output frequently drifts.

The balance type oil-water interface instrument is developed in the earlier stage, but the reading is inconvenient because of no digital display function, and in order to reduce the labor intensity of workers at the same line, the digital display function is developed on the basis of the original balance type oil-water interface instrument, so that the practical value of the balance type oil-water interface instrument is further improved.

The above information disclosed in the background section is only for enhancement of understanding of the background of the present invention, and therefore it may contain information that does not form the prior art that is known to those of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a digital display oil-water interface appearance and oil storage tank to solve or alleviate the technical problem that exists among the prior art, provide a profitable selection at least.

The embodiment of the utility model provides a technical scheme is so realized:

according to the utility model discloses an embodiment provides a digital display oil-water interface appearance, is applied to in the oil storage tank, include:

the interface floating block is arranged in the oil storage tank, and the density of the interface floating block is greater than that of two kinds of liquid contained in the oil storage tank;

the balancing device is arranged outside the oil storage tank and comprises a balancing weight for adjusting the weight of the balancing device;

the pulley device is arranged above the oil storage tank and is connected with the interface floating block and the balancing device; and

magnetostrictive liquid level indicator, set up in the outside of oil storage tank includes:

the electronic chamber can generate a current pulse signal;

the magnetostrictive pipe is made of magnetostrictive materials, is used for transmitting pulse signals and is connected with the electronic chamber;

the floater is freely sleeved on the magnetostrictive tube, is connected with the balancing device, can float up and down along with the balancing device and is always consistent with the height of the balancing device;

the display has a digital display function and is used for displaying the position of an oil-water interface;

wherein the balancing device makes the center of the interface floating block be positioned at the interface of the two liquids by adjusting the weight of the balancing weight;

the magnetostrictive liquid level indicator is used for measuring the position of the balancing device and accurately displaying the position of an oil-water interface through calculation.

In some embodiments, a permanent magnet ring is mounted in the float and generates a magnetic ring magnetic field;

the current pulse signal is transmitted along the magnetostrictive tube to generate a circumferential magnetic field;

when the magnetic ring magnetic field meets the circumferential magnetic field, a return pulse signal is generated;

the electronic chamber can detect the return pulse signal, convert the return pulse signal into a digital quantity signal through calculation, and output and display the digital quantity signal on the display.

In some embodiments, the pulley arrangement includes a first pulley positioned above the interface float and a second pulley positioned above the balancing device; the interface floating block is connected with the balancing device through a connecting rope wound on the first pulley and the second pulley.

In some embodiments, the interface float and the balancing device are arranged perpendicular to a cross-sectional direction of the oil storage tank.

In some embodiments, the ratio of the difference between the weight of the counterbalance device and the weight of the interface float to the volume of the interface float is between the densities of the two liquids in the storage tank.

In some embodiments, the interface floating block is located right below a breathing opening formed in a top plate of the oil storage tank, and the first pulley is located right above the breathing opening.

According to the utility model discloses the embodiment provides an oil storage tank, include above-mentioned arbitrary interface appearance.

In some embodiments, the interface instrument further comprises a bracket for fixing the pulley device of the interface instrument.

In some embodiments, the oil storage tank contains both water and oil.

The utility model has the advantages that:

the utility model discloses on the basis of the balanced type oil water interface appearance of earlier stage development, the magnetostrictive formula liquid level indicator who has the digital display function has been increased. When the position of the oil-water interface changes, the interface floating block can drive the balancing device to move, and the change of the position of the oil-water interface is directly reflected on the magnetostrictive liquid level indicator, so that the related data of oil and water in the oil storage tank can be accurately obtained and measured. Because the output signal of the magnetostrictive liquid level indicator is a real absolute value, and is not a proportional signal or a signal needing amplification processing, even if the power supply is interrupted and reconnected, the data cannot be lost, and the data does not need to be re-zeroed. The magnetostrictive liquid level indicator is not in contact with the interface floating block, so that the magnetostrictive liquid level indicator cannot cause any abrasion even if repeatedly detected, and the detection possibility and the service life can be greatly improved. This oil-water interface appearance simple structure, convenient to use just has the digital display function, instructs the accuracy, and the maintenance volume is few simultaneously, can avoid the workman to scramble the measuring every day and bitter, has reduced workman's work load, has improved work efficiency.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a digital display type oil-water interface instrument and an oil storage tank according to an embodiment of the present invention.

Reference numerals: the device comprises an oil storage tank 100, water 200, oil 300, an interface floating block 1, a balancing device 2, a pulley device 3, a magnetostrictive liquid level indicator 4, a balancing weight 21, a first pulley 31, a second pulley 32, a connecting rope 33, a magnetostrictive pipe 41, an electronic chamber 42, a floater 43, a display 44, a power supply 45, a top plate 101 and a breathing opening 102.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

As shown in fig. 1, the embodiment of the present invention provides a digital display type oil-water interface instrument, which is applied to an oil storage tank 100, including:

and an interface float 1 disposed in the oil storage tank 100. The density of the interface float 1 is greater than the density of the two fluids contained in the storage tank 100. Wherein, interface floating block 1 can select to adopt hollow structure or solid construction as required, when interface floating block 1 adopts hollow structure, needs to guarantee that interface floating block 1's casing is complete seal structure, prevents the inside of liquid infiltration interface floating block 1. It should be understood that the interface float 1 may take any shape that satisfies the requirement that the density of the interface float 1 is greater than the density of the respective fluid contained in the tank 100. For ease of measurement, the preferred interface floe 1 may take a regular shape, for example, a spherical or regular polygonal configuration.

The balancing device 2 is disposed outside the oil tank 100 and includes a weight 21. The number of weights 21 can be adjusted as desired. And the weight of each balancing weight 21 can be inequality to guarantee to make balancing unit 2 reach required arbitrary weight through adjusting balancing weight 21, in order to satisfy the demand that interface appearance measures different density liquid. For example, the weight of each weight 21 may vary from 5 to 100 g.

And a pulley device 3 disposed above the oil storage tank 100, the pulley device 3 connecting the interface float 1 and the balance device 2.

A magnetostrictive level indicator 4, which is arranged outside the oil tank 100, for measuring the position of the balancing device 2. The change in the position of the interface of the two liquids inside the oil tank 100 is confirmed by measuring the change in the position of the balancer device 2. The magnetostrictive liquid level indicator 4 has a magnetostrictive tube 41, an electronic chamber 42, a float 43, a display 44 and a power supply 45. The magnetostrictive tube 41, which is used to transmit a pulse signal, is made of magnetostrictive material and is connected to the electronic chamber 42. The electronic chamber 42, when powered by the power source 45, generates a current pulse signal which travels down the magnetostrictive tube 41 and generates a circumferential magnetic field. The interior of the float 43 is provided with a set of permanent magnetic rings which can generate a magnetic ring magnetic field. The floater 43 is freely sleeved on the magnetostrictive tube 41, is connected with the balancing device 2, can float up and down along with the balancing device 2, and is always consistent with the height of the balancing device 2. The electronic room 42 can detect the pulse signal, convert the calculation into a digital signal, and output and display the digital signal on the display 44. Since the digital signal output by the display 44 is a true absolute value, rather than a proportional or amplified signal, there is no signal drift or change, and thus periodic calibration and maintenance is not required as is the case with other level sensors.

The magnetostrictive liquid level indicator 4 works according to the following principle: when measuring, the magnetostrictive liquid level indicator 4 is powered on by the power supply 45, and the electronic chamber 42 generates a current pulse signal which is transmitted downwards along the magnetostrictive tube 41 and generates a circumferential magnetic field. The balance device 2 floats up and down along with the fluctuation of the interface floating block 1, and the floater 43 also floats up and down along with the balance device 2 and generates a magnetic ring magnetic field. When the magnetic field of the magnetic ring meets the magnetic field of the circumference, the magnetic field around the float 43 changes due to the magnetostrictive effect, so that the magnetostrictive tube 41 generates a "torsion" pulse, or "return" pulse at the position where the float 43 is located. This "return" pulse signal is transmitted back along the magnetostrictive tube 41 to the electronic chamber 42. Since the transit time of this "return" pulse is proportional to the distance between the float 43 and the electronic chamber 42, by measuring the time, it is possible to calculate with high precision the position of the float 43, i.e. the position of the balancing device 2, and thus to confirm the change in the position of the interface of the two liquids inside the tank 100. The electronic room 42 calculates and converts the detected "return" pulse signal into a digital quantity signal, and outputs and displays the digital quantity signal in the display 44.

Wherein the balancing device 2 positions the center of the interface float 1 at the interface of the two liquids by changing the weight of the balancing weight 21.

It should be noted that, in the embodiments of the present invention, the reference is made to fig. 1 for the directional words. The upper direction of the oil storage tank 100 in fig. 1 is the upper direction, the lower direction of the oil storage tank 100 is the lower direction, the space enclosed by the tank wall of the oil storage tank 100 is the inside of the oil storage tank 100, and the space outside the tank wall of the oil storage tank 100 is the outside of the oil storage tank 100.

In one embodiment, the interface meter of the present embodiment is also applicable in a settling tank, particularly in a primary settling tank.

In one embodiment, the pulley arrangement 3 comprises a first pulley 31 and a second pulley 32. The first pulley 31 is located above the interface float 1 and the second pulley 32 is located above the balancing device 2. The interface floe 1 is connected to the balancing device 2 by means of connecting ropes 33 provided on the first pulley 31 and the second pulley 32. The connecting rope 33 may be a wire rope, a belt, a rope, or the like.

In a specific embodiment, the first pulley 31 is fixedly arranged directly above the interface slider 1 and the second pulley 32 is arranged directly above the balancing device 2. The first pulley 31 and the second pulley 32 are horizontally spaced apart. One end of the connecting rope 33 is connected with the interface floating block 1, and the other end is connected with the balancing device 2 after being sequentially wound around the first pulley 31 and the second pulley 32. In the state of equilibrium, both the interface float 1 and the balancing device 2 hang vertically, i.e. the rope portion of the connecting rope 33 between the first pulley 31 and the interface float 1 is parallel to the rope portion of the connecting rope 33 between the second pulley 32 and the balancing device 2.

The pulley device 3 keeps the interface floating block 1 and the balancing device 2 moving in reverse direction all the time. For example, when the interface float 1 moves vertically downward in the storage tank 100, it will bring one end of the connecting rope 33 together to move downward. Under the action of the first pulley 31 and the second pulley 32, the other end of the connecting rope 33 moves toward the inside of the oil storage tank 100, so that the other end of the connecting rope 33 drives the balancing unit 2 to move vertically upward. And vice versa, and will not be described in detail herein.

In one embodiment, the interface float 1 and the balancing device 2 are vertically arranged perpendicular to the cross-section of the oil storage tank 100.

In one embodiment, the ratio of the weight of the counterbalance apparatus 2 to the weight of the interface float 1 to the volume of the interface float 1 is between the densities of the two fluids in the tank 100.

For example, when the two liquids in the oil tank 100 are water and oil, the weight of the weight 21 at least satisfies the following formula:

wherein,

the weight of the balancing device 2 is represented,

the weight of the interface floe 1 is shown,

the volume of the interface floe 1 is shown,

which is indicative of the density of the oil,

indicating the density of the water.

In one embodiment, the interface float 1 is located directly below a breathing opening 102 formed in a top plate 101 of the storage tank 100, and the first pulley 31 is located directly above the breathing opening 102.

The embodiment of the utility model provides an oil storage tank 100 is still provided, including any one of the above-mentioned embodiment interface appearance.

In one embodiment, the oil tank 100 further comprises a bracket (not shown) for fixing the pulley device 2 of the interface meter.

In one embodiment, any two fluids of different densities may be contained in the storage tank 100. Such as water and oil. The oil is understood to be any kind of liquid oil.

The utility model discloses the device is at the during operation, at first places interface floating block 1 in the oil storage tank 100 that holds water 200 and oil 300. According to the densities of the water 200 and the oil 300, the number and the weight of the balancing weights 21 of the balancing device 2 are adjusted to change the buoyancy of the interface floating block 1 between the water and the oil, so that the central position of the interface floating block 1 is ensured to be positioned at an oil-water interface. After the interface instrument is installed and debugged, the interface floating block 1 can float up and down along with the fluctuation of the oil-water interface, and the position of the oil-water interface is accurately indicated. Meanwhile, the balancing device 2 moves up and down along with the interface float 1, and reflects the displacement on the magnetostrictive liquid level indicator 4. Thereby accurately obtaining the capacity change of the water 200 and the oil 300 and the position of the oil-water interface.

In the present embodiment, the oil in the "oil-water" may be any oil-type liquid, and the water may be any water-containing liquid.

Based on above-mentioned each embodiment, the utility model discloses interface appearance has following advantage: the utility model discloses interface appearance simple structure, installation and debugging convenience, interface instruction are accurate, the maintenance volume is few and processing is simple. Because the balance device 2 connected with the interface floating block 1 is arranged outside the oil storage tank 100, the buoyancy of the interface floating block 1 in the oil storage tank 100 can be changed through the weight adjustment of the balance device 2, so that the interface floating block 1 can be matched with the buoyancy change of oil water with different densities, and the interface floating block 1 is ensured to be positioned between oil water interfaces. When the oil-water interface position changes, the interface floating block 1 can drive the balancing device 2 to move, and the change of the oil-water interface position is directly reflected on the magnetostrictive liquid level indicator 4, so that the related data of oil and water in the oil storage tank 100 can be accurately obtained and measured, and the obtained oil-water interface data can be accurately improved. The magnetostrictive liquid level indicator 4 is not directly contacted with the interface floating block 1, and the position of the oil-water interface is determined by measuring the position of the balancing device 2, so that the magnetostrictive liquid level indicator can be applied to extremely severe industrial environments and is not easily influenced by oil stains, solutions, dust or other pollution. In addition, the magnetostrictive liquid level indicator 4 employs high-tech materials and advanced electronic processing technology, so that it can be applied in high-temperature, high-pressure and high-oscillation environments. The digital signal output by the display 44 is an absolute displacement value, and even if the power supply is interrupted and reconnected, the data will not be lost, and even if the power supply is interrupted and reconnected, the data does not need to be re-zeroed. Because the magnetostrictive liquid level indicator 4 adopts the waveguide principle and has no mechanical movable part, no friction and no abrasion exist, and the magnetostrictive liquid level indicator is not in contact with a measuring medium, and cannot cause any abrasion even if the magnetostrictive liquid level indicator is continuously and repeatedly detected, so that the detection possibility can be greatly improved, and the service life can be greatly prolonged. Meanwhile, the phenomenon that a worker climbs the liquid storage tank 100 for measurement can be avoided, the workload of the worker is reduced, and the working efficiency is improved.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a digital display oil-water interface appearance, is applied to in the oil storage tank, its characterized in that includes:

the electronic chamber can generate a current pulse signal;

2. The interface meter of claim 1, wherein a permanent magnet ring is mounted in said float and is capable of generating a magnetic ring magnetic field;

3. The interface meter of claim 1, wherein the pulley means comprises a first pulley and a second pulley, the first pulley being positioned above the interface float and the second pulley being positioned above the balancing means; the interface floating block is connected with the balancing device through a connecting rope arranged on the first pulley and the second pulley.

4. The interface meter of claim 1, wherein the interface float and the counterbalance device are arranged perpendicular to the cross-sectional direction of the storage tank.

5. The interface meter of claim 1, wherein the ratio of the difference between the weight of said counterbalance means and the weight of said interface float to the volume of said interface float is between the densities of the two fluids in said storage tank.

6. The interface apparatus of claim 3, wherein the interface float is located directly below a breathing opening formed in a top plate of the oil storage tank, and the first pulley is located directly above the breathing opening.

7. An oil storage tank comprising an interface device as claimed in any one of claims 1 to 6.

8. The storage tank of claim 7, further comprising a bracket for securing said pulley means of said interface meter.

9. The oil storage tank of claim 7, wherein said oil storage tank contains both water and oil.