阅读说明：本技术 测量液面高度的磁性装置及系统 (Magnetic device and system for measuring liquid level ) 是由 不公告发明人 于 2020-11-27 设计创作，主要内容包括：本申请涉及测量液面高度的磁性装置及系统,具体而言,涉及液面测量装置。本申请提供的磁性装置包括：壳体、轭铁、磁体部、浮漂、连接部和磁性材料部；该磁体部产生磁场,通过轭铁进行传递,由于该浮漂漂浮在液面上,连接部将磁性材料部与浮漂连接,则该待测液面发生改变时,浮漂位置改变,带动该磁性材料部位置发生改变,由于该磁场的大小还与该磁性材料部与该轭铁开口处的作用面积和距离有关,则该磁性材料部位置发生改变,改变该磁性材料部与该轭铁开口处的作用面积和距离,使得该轭铁磁回路中的磁场大小也会相应改变,通过对该缝隙处的磁场进行测量,得到该轭铁磁回路中的磁场变化,通过磁场改变与该液面高低的对应关系,得到该液面变化情况。(The present application relates to magnetic devices and systems for measuring liquid level, and more particularly, to liquid level measuring devices. The application provides a magnetic device comprising: the magnetic field generator comprises a shell, a yoke, a magnet part, a float, a connecting part and a magnetic material part; the magnetic part generates a magnetic field which is transmitted through the yoke, the float floats on the liquid level, the connecting part connects the magnetic material part with the float, when the liquid level to be measured changes, the position of the float changes to drive the position of the magnetic material part to change, the magnetic material part also changes because the size of the magnetic field is related to the action area and the distance between the magnetic material part and the yoke opening, the position of the magnetic material part changes to change the action area and the distance between the magnetic material part and the yoke opening, so that the size of the magnetic field in the yoke magnetic loop can also correspondingly change, the magnetic field at the gap is measured to obtain the magnetic field change in the yoke magnetic loop, and the liquid level change condition is obtained through the corresponding relation between the magnetic field change and the liquid level.)

1. A magnetic device for measuring the height of a liquid surface, said device comprising: the magnetic field generator comprises a shell, a yoke, a magnet part, a float, a connecting part and a magnetic material part; the magnet part is arranged on one side of the shell, the yoke is wrapped on the periphery of the shell, the magnet part and the yoke form a cavity, an opening is formed in one surface, far away from the magnet part, of the cavity, a gap is formed in one surface, adjacent to the opening surface, of the cavity, a through hole is formed in the position, opposite to the opening, of the shell, liquid is filled in the shell, the connecting part penetrates through the through hole, stretches into one end of the shell, is connected with the float, the other end of the connecting part is provided with the magnet material part, and the magnet material part extends to the opening position of the cavity.

2. The magnetic device according to claim 1, wherein the magnet portion is made of at least one of iron-chromium-cobalt, aluminum-nickel-cobalt, samarium-cobalt, rubidium-iron-boron, and ferrite.

3. The magnetic device for measuring liquid level according to claim 2, wherein the opening of the chamber is trapezoidal or triangular in shape.

4. A magnetic device for measuring liquid level according to claim 3, wherein the wall of the housing at the opening of the chamber is serrated.

5. A magnetic device for measuring liquid level according to claim 3, wherein the wall of the housing at the opening of the chamber is circular.

6. The magnetic device for measuring a liquid level according to claim 1, wherein the magnetic material portion has a shape of any one of a cylinder, a cone and a pyramid.

7. The magnetic device for measuring liquid level according to claim 3, wherein the housing is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both arranged on the surfaces of the housing adjacent to the through hole.

8. A magnetic system for measuring a level of a liquid, the system comprising: a magnetic field measuring device and the magnetic device for measuring a liquid level according to any one of claims 1 to 7, wherein the magnetic field measuring device is disposed at the gap of the housing of the magnetic device for measuring a magnetic field of the magnetic device.

Technical Field

The present disclosure relates to liquid level measuring devices, and more particularly, to a magnetic device and system for measuring a liquid level.

Background

In the prior art, liquid level measurement is generally performed by an electrical or optical measuring device, an optical measuring method is generally performed by measuring reflected light to measure the liquid level, and the electrical measuring device is generally performed by measuring the liquid level to be measured by a resistor.

However, both electrical and optical measurements require consideration of the waterproof and hermetic properties of the device, which makes the device for measuring the liquid level relatively complicated and is prone to danger both electrically and optically if flammable and explosive substances are measured.

Disclosure of Invention

The present invention is directed to provide a magnetic device and a system for measuring a liquid level height, which solve the problems in the prior art that the device for measuring a liquid level height is complex due to the waterproof and sealing properties of the device for electrical and optical measurements, and the electrical and optical measurements are dangerous if flammable and explosive substances are measured.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, the present application provides a magnetic device for measuring liquid level, the device comprising: the magnetic field generator comprises a shell, a yoke, a magnet part, a float, a connecting part and a magnetic material part; the magnet portion sets up in one side of casing, and the yoke parcel is in the periphery of casing, and magnet portion and yoke constitute the cavity, and the opening has been seted up to the one side that the magnet portion was kept away from to the cavity, sets up the gap on the one side adjacent with the opening face on the cavity, and the casing is provided with the through-hole with the position that the opening is relative, and the inside packing of casing has liquid, and connecting portion pass the one end that the through-hole stretched into the casing and be connected with the buoy, and the connecting portion other end is provided with magnet material portion, and magnet material portion extends to the.

Optionally, the material of the magnet portion is at least one of iron-chromium-cobalt, aluminum-nickel-cobalt, samarium-cobalt, rubidium-iron-boron and ferrite.

Optionally, the opening of the cavity is trapezoidal or triangular in shape.

Optionally, the housing wall at the cavity opening is serrated.

Optionally, the housing wall at the cavity opening is arc-shaped.

Optionally, the shape of the magnetic material portion is any one of a cylinder, a cone and a pyramid.

Optionally, a liquid inlet and a liquid outlet are arranged on the housing, and the liquid inlet and the liquid outlet are both arranged on the surfaces of the housing adjacent to the through hole.

In a second aspect, the present application provides a magnetic system for measuring a level of a liquid, the system comprising: and a magnetic device for measuring a liquid level according to any one of the first to third aspects, wherein the magnetic field measuring device is provided at a slit of a housing of the magnetic device, and measures a magnetic field of the magnetic device.

The invention has the beneficial effects that:

the application provides a magnetic device for measuring liquid level height includes: the magnetic field generator comprises a shell, a yoke, a magnet part, a float, a connecting part and a magnetic material part; the magnet part is arranged at one side of the shell, the yoke iron is wrapped at the periphery of the shell, the magnet part and the yoke iron form a cavity, one surface of the cavity, which is far away from the magnet part, is provided with an opening, one surface of the cavity, which is adjacent to the opening surface, is provided with a gap, the position of the shell, which is opposite to the opening, is filled with liquid, one end of the connecting part, which penetrates through the through hole and extends into the shell, is connected with a float, the other end of the connecting part is provided with a magnet material part, the magnet material part extends to the opening position of the cavity, the magnet part generates a magnetic field, the magnetic field is transmitted through the yoke iron, the magnetic field is transmitted out at the gap, the connecting part connects the magnet material part with the float, when the liquid level to be measured is changed, the position of the float is changed to drive the position of the magnet material part to be changed, and the size of the magnetic field is also related to the action area and, the position of the magnetic material part is changed, the action area and the distance between the magnetic material part and the opening of the yoke are changed, so that the magnitude of the magnetic field in the yoke magnetic circuit is correspondingly changed, the magnetic field change in the yoke magnetic circuit is obtained by measuring the magnetic field at the gap, and the liquid level change condition is obtained by the corresponding relation between the magnetic field change and the liquid level height.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a magnetic device for measuring a liquid level according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another magnetic device for measuring a liquid level according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another magnetic device for measuring a liquid level according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another magnetic device for measuring a liquid level according to an embodiment of the present invention.

Icon: 10-a housing; 20-a yoke; 21-opening; 22-a gap; 30-a magnet portion; 40-floating; 50-a connecting part; 60-magnetic material portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are one embodiment of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to make the implementation of the present invention clearer, the following detailed description is made with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a magnetic device for measuring a liquid level according to an embodiment of the present invention; as shown in fig. 1, the present application provides a magnetic device for measuring a liquid level, the device comprising: a housing 10, a yoke 20, a magnet portion 30, a float 40, a connecting portion 50, and a magnetic material portion 60; magnet portion 30 sets up the one side at casing 10, yoke 20 wraps up the periphery at casing 10, and magnet portion 30 and yoke 20 constitute the cavity, opening 21 has been seted up to the one side that magnet portion 30 was kept away from to the cavity, set up gap 22 on the one side adjacent with opening 21 face on the cavity, casing 10 is provided with the through-hole with the position that opening 21 is relative, the inside packing of casing 10 has liquid, connecting portion 50 passes the one end that the through-hole stretched into casing 10 and is connected with cursory 40, the 50 other ends of connecting portion are provided with magnet material portion, and magnet material portion extends to the opening 21 position of cavity.

The cavity formed by the yoke 20 and the magnet portion 30 is a housing, the housing 10 is disposed inside the housing, the shape of the housing and the housing 10 is selected according to actual conditions, and is not particularly limited herein, generally, for convenience of description, the shape of the housing and the housing 10 is described as a rectangular parallelepiped, one surface of the rectangular parallelepiped housing is the magnet portion 30, the other surfaces are the yoke 20, the surface of the housing opposite to the magnet portion 30 is provided with an opening 21, the surface adjacent to the opening 21 is provided with a gap 22, the housing 10 is disposed inside the housing, the opening 21 of the housing 10 corresponding to the opening 21 is provided with a through hole, the housing 10 is filled with a liquid, the radius of the through hole is larger than the cross section of the connecting portion 50, so that the connecting portion 50 can penetrate into the through hole, one end of the connecting portion 50 penetrating into the through hole is connected with a float 40, the other end of the connecting part 50 is connected with the magnetic material part 60; the magnetic part 30 generates a magnetic field, the magnetic field is transmitted on the housing through the yoke 20, due to the existence of the gap 22, when the magnetic field is transmitted through the gap 22, the magnetic field can be measured through the gap 22, since the float 40 floats on the liquid surface, the connecting part 50 connects the magnetic material part 60 with the float 40, when the liquid surface to be measured is changed, the position of the float 40 is changed, the position of the magnetic material part 60 is changed, since the magnitude of the magnetic field is also related to the acting area and the distance between the magnetic material part 60 and the opening 21 of the yoke 20, the position of the magnetic material part 60 is changed, the acting area and the distance between the magnetic material part 60 and the opening 21 of the yoke 20 are changed, the magnitude of the magnetic field in the magnetic circuit of the yoke 20 is also changed correspondingly, and the corresponding relation between the height of the liquid surface is changed through the magnetic field, the liquid level change condition is obtained, and the corresponding relation between the magnetic field change and the liquid level height is obtained according to experimental measurement, and is not particularly limited herein. In the magnetic device provided by the application, as the position of the magnetic material part 60 is changed by changing the liquid level of the liquid in the shell 10, the action area and the distance between the magnetic material part 60 and the yoke 20 are changed, the magnetic resistance in the yoke 20 is changed, namely the liquid level has a slight influence, the influence can be amplified by the magnetic field of the device, the liquid level is conveniently measured, and the accuracy and the sensitivity of the liquid level measurement are ensured; the device based on magnetism does not need to be waterproof, does not need to consider the sealing performance, does not need to be built with a complex light path, and is simple in structure, long in service life and beneficial to popularization.

Optionally, the material of the magnet portion 30 is at least one of iron-chromium-cobalt, aluminum-nickel-cobalt, samarium-cobalt, rubidium-iron-boron, and ferrite.

The material of the magnet portion 30 may be any one of iron-chromium-cobalt, aluminum-nickel-cobalt, samarium-cobalt, rubidium-iron-boron and ferrite, or a mixed material of multiple compositions of iron-chromium-cobalt, aluminum-nickel-cobalt, samarium-cobalt, rubidium-iron-boron and ferrite, if the material of the magnet portion 30 is a mixed material of multiple compositions of iron-chromium-cobalt, aluminum-nickel-cobalt, samarium-cobalt, rubidium-iron-boron and ferrite, the type and proportion of each material in the mixed material are determined according to actual needs, and no specific limitation is made here.

FIG. 2 is a schematic structural diagram of another magnetic device for measuring a liquid level according to an embodiment of the present invention; as shown in fig. 2, the opening 21 of the cavity is optionally trapezoidal or triangular in shape.

The shape of the opening 21 of the cavity may be trapezoidal or triangular, and in practical application, the shape of the opening 21 of the cavity may be such that the cross-sectional area of the end close to the magnet part 30 is larger than the cross-sectional area of the end far away from the magnet part 30, that is, the opening 21 of the cavity may be trapezoidal, inverted trapezoidal, triangular or inverted triangular; when the opening 21 of the cavity is in the shape of an upright trapezoid, the float 40 descends along with the reduction of the liquid level, the interaction area of the magnetic material part 60 and the yoke 20 changes, the left-right distance also changes, the magnetic field changes more greatly, the measured signal is more sensitive, when the opening 21 of the cavity is in the shape of an inverted trapezoid, the principle is consistent, and details are not repeated herein; when the opening 21 of the cavity is in an upright triangle shape, the floater 40 descends along with the descending of the liquid level, the area change of the interaction between the magnetic material part 60 and the yoke iron 20 is larger, the change caused by the descending of the magnetic material is caused, and the volume change of the magnetic material part 60 is caused, so that the change of the magnetic field transmitted in the past is larger, and the measured signal is more sensitive; when the opening 21 of the cavity is an inverted triangle, the principle is the same, and details are not described herein.

FIG. 3 is a schematic structural diagram of another magnetic device for measuring a liquid level according to an embodiment of the present invention; as shown in fig. 3, optionally, the wall of the housing 10 at the cavity opening 21 is serrated.

The wall of the housing 10 at the opening 21 of the cavity is zigzag, that is, the surface where the yoke 20 and the magnetic material portion 60 interact is zigzag, and the magnetic field at the zigzag surface is stronger than the plane, so that the zigzag surface of the yoke interacts with the magnetic material portion 60, the change of the magnetic field is larger, and the measured signal is more sensitive.

FIG. 4 is a schematic structural diagram of another magnetic device for measuring a liquid level according to an embodiment of the present invention; as shown in fig. 4, optionally, the wall of the housing 10 at the cavity opening 21 is circular arc-shaped.

The wall of the housing 10 at the opening 21 of the cavity is arc-shaped, that is, the surface of the yoke 20 opposite to the magnetic material portion 60 is arc-shaped, and the magnetic field at the arc-shaped surface is stronger than the plane, so that the arc-shaped surface of the yoke interacts with the magnetic material portion 60, the change of the magnetic field is larger, and the measured signal is more sensitive.

Alternatively, the magnetic material portion 60 may have any one of a cylindrical shape, a conical shape, and a pyramidal shape.

When the magnetic material portion 60 is a cone or a pyramid, the float 40 descends with the lowering of the liquid level, and not only the area change of the interaction between the magnetic material portion 60 and the yoke 20 is larger, but also the change caused by the descending of the magnetic material and the volume change of the magnetic material portion 60 per se are caused, so that the change of the magnetic field transmitted in the past is larger, and the measured signal is more sensitive.

Optionally, a liquid inlet and a liquid outlet are disposed on the housing 10, and both the liquid inlet and the liquid outlet are disposed on the surface of the housing 10 adjacent to the through hole.

Be provided with inlet and liquid outlet on this casing 10, this inlet and liquid outlet are used for supplementing or changing the inside liquid of this casing 10, and this, inlet and liquid outlet all set up on casing 10 offers the adjacent face of through-hole, and concrete position of setting is decided according to actual need, do not specifically limit here.

The application provides a magnetic device for measuring liquid level height includes: a housing 10, a yoke 20, a magnet portion 30, a float 40, a connecting portion 50, and a magnetic material portion 60; the magnet part 30 is arranged at one side of the shell 10, the yoke 20 is wrapped at the periphery of the shell 10, the magnet part 30 and the yoke 20 form a cavity, one side of the cavity, which is far away from the magnet part 30, is provided with an opening 21, one side of the cavity, which is adjacent to the opening 21, is provided with a gap 22, a through hole is arranged at the position of the shell 10, which is opposite to the opening 21, the shell 10 is filled with liquid, one end of the connecting part 50, which penetrates through the through hole and extends into the shell 10, is connected with a float 40, the other end of the connecting part 50 is provided with a magnet material part, which extends to the position of the opening 21 of the cavity, the magnet part 30 generates a magnetic field, the magnetic field is transmitted through the yoke 20, the magnetic field is transmitted out at the gap 22, because the float 40 floats on the liquid surface, the connecting part 50 connects the magnet material part 60 with the float 40, when the liquid surface to be measured is changed, since the magnitude of the magnetic field is also related to the action area and distance between the magnetic material portion 60 and the opening 21 of the yoke 20, the position of the magnetic material portion 60 is changed, the action area and distance between the magnetic material portion 60 and the opening 21 of the yoke 20 are changed, so that the magnitude of the magnetic field in the magnetic circuit of the yoke 20 is also changed correspondingly, the magnetic field change in the magnetic circuit of the yoke 20 is obtained by measuring the magnetic field at the gap 22, and the liquid level change condition is obtained by the corresponding relationship between the magnetic field change and the liquid level height.

The application provides a magnetic system for measuring liquid level, the system includes: a magnetic field measuring device and any one of the magnetic devices for measuring the liquid level, the magnetic field measuring device is arranged at the gap 22 of the shell of the magnetic device and is used for measuring the magnetic field of the magnetic device.

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.