CN110274665A - Liquid level detection device and container - Google Patents

Abstract

The invention discloses a liquid level detection device and a container, the liquid level detection device includes: a first liquid level detection part, the first liquid level detection part comprises a first body and is floatingly arranged on the first body The first float on the upper part; the second liquid level detection part, the second liquid level detection part includes a second main body and a second float that can be floated on the second main body; the connecting part, the connecting parts are respectively It is connected with the first float and the second float, and the first float and the second float are linked. According to the liquid detection device of the embodiment of the present invention, the height of the liquid surface can be read through different liquid level detection components.

Description

Liquid level detection devices and containers

technical field

The invention relates to the fields of instruments and measurements, in particular to a liquid level detection device and a container.

Background technique

In industrial production, thermal hydraulic test and other occasions, in order to obtain the liquid level of the container intuitively, it is often necessary to arrange a magnetic flap liquid level gauge (the principle of a connecting device to visually display the liquid level). The magnetic flap liquid level gauge is a mature and general-purpose technology. However, the magnetic flap level gauge in the prior art has certain shortcomings and areas to be improved, mainly as follows: the magnetic flap level gauge installed on a higher container has certain observation difficulties; Magnetic float or magnetic plate indicators have a certain or high failure rate, resulting in poor reliability.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

Therefore, an object of the present invention is to provide a liquid level detection device that is convenient for reading.

The present invention also proposes a container with the above-mentioned liquid level detection device, which can conveniently read the liquid level in the container.

The liquid detection device according to the embodiment of the first aspect of the present invention includes: a first liquid level detection member, the first liquid level detection member includes a first main body and a first float provided on the first main body so as to be floatable ; The second liquid level detection part, the second liquid level detection part includes a second main body and a second float that can float on the second main body; a connecting part, the connecting part is respectively connected with the first The float is connected with the second float, and the first float is linked with the second float.

According to the liquid detection device of the embodiment of the present invention, the height of the liquid surface can be read through different liquid level detection components.

In addition, the liquid level detection device according to the above embodiments of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the connecting member includes a fixed pulley and a pulley, one end of the pulley is connected to the first buoy, and the other end of the pulley passes over the pulley. The fixed pulley is connected with the second float.

According to an embodiment of the present invention, the connecting member includes a pull rope, the first float is higher than the second float, and the upper end of the pull rope is connected to the first float, and the lower end of the pull rope Connected to the second float.

According to an embodiment of the present invention, at least one of the first liquid level detection part and the second liquid level detection part is a magnetic flap liquid level gauge; and/or the first liquid level detection part and the At least one of the second liquid level detection parts is a transparent tube liquid level gauge.

According to an embodiment of the present invention, the upper end and the lower end of the first float are both provided with temperature detection elements.

According to an embodiment of the present invention, scales are provided on both the first body and the second body, and the scale on the first body and the scale on the second body are in the same direction, opposite or in predetermined alignment. The included angle of the angle.

According to an embodiment of the present invention, at least one of a liquid level gauge and a volume gauge is provided on the first body; and/or at least one of a liquid level gauge and a volume gauge is provided on the second body .

According to an embodiment of the present invention, at least one of the first body and the second body is provided with: an axial scale for marking the liquid level height; a circumferential scale for marking the size of the container, the The circumferential scale is rotatable relative to the axial scale.

The container according to the embodiment of the second aspect of the present invention includes: a cavity and the liquid level detection device of the above embodiment. A cavity is formed within the cavity shown.

According to an embodiment of the present invention, the first liquid level detection part is arranged inside the cavity, and the second liquid level detection part is arranged outside the cavity; or the first liquid level detection part is directly connected to the cavity The internal space of the body is connected, and the second liquid level detection part is arranged at a position not higher than the first liquid level detection part; or the cavity is provided with a plurality of the liquid level detection devices.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural diagram of a liquid level detection device according to an embodiment of the present invention.

Reference signs:

Liquid level detection device 100,

The first liquid level detection part 10, the first main body 11, the first float 12,

The second liquid level detection part 20, the second main body 21, the second float 22,

drawstring 31,

Ruler 40.

Detailed ways

In industrial production, thermal hydraulic test and other occasions, in order to obtain the liquid level of the container intuitively, it is often necessary to arrange a magnetic flap liquid level gauge (the principle of a connecting device to visually display the liquid level). The magnetic flap liquid level gauge is a mature and general-purpose technology. However, the magnetic flap level gauge in the prior art has certain shortcomings and areas to be improved, mainly as follows: the magnetic flap level gauge installed on a higher container has certain observation difficulties; Magnetic float or magnetic plate indicators have a certain or high failure rate, resulting in poor reliability.

In order to solve the above problems, the present invention proposes a liquid level detection device 100 .

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

As shown in FIG. 1 , the liquid level detection device 100 generally includes: a first liquid level detection part 10 , a second liquid level detection part 20 and a connecting part.

The first liquid level detecting element 10 includes a first main body 11 and a first float 12 disposed on the first main body 11 so as to be able to float. The second liquid level detecting member 20 includes a second main body 21 and a second float 22 disposed on the second main body 21 . The connecting pieces are connected to the first float 12 and the second float 22 respectively, and the first float 12 and the second float 22 are linked.

Specifically, the first body 11 and the second body 21 respectively have a first float 12 and a second float 22 that can float up and down, wherein the positional relationship between the first float 12 and the second float 22 affects each other, and the first float 12 and the reading at the corresponding position of the second float 22 is the liquid level.

Wherein, one of the first float 12 and the second float 22 can be set to rise and fall following the liquid level, and the other of the first float 12 and the second float 22 can be set to follow the movement of the one. For example, the first float 12 is set to float with the liquid surface (for example, the first float 12 is located at a level with the liquid surface), and the first float 12 and the second float 22 are connected by a connecting piece, so that When the float 12 floats with the liquid surface, the second float 22 floats following the first float 22 .

In addition, the linkage between the aforementioned first float 12 and the second float 22 means that when the first float 12 moves, the second float 22 moves simultaneously. Taking the first float 12 as an active movement (following the liquid level) as an example, in the first When the float 12 moves upward, the second float can be set to move downward, move downward, move horizontally, etc., and the displacement of the first float 12 and the second float 22 does not need to be exactly the same, only the first float 12 It only needs to show the same liquid level height as that of the second float 22 .

Therefore, according to the liquid level detection device 100 of the embodiment of the present invention, by setting the first liquid level detection part 10 and the second liquid level detection part 20, and connecting the first liquid level detection part 10 and the second liquid level detection part through the connecting part The linkage connection between the first float 12 and the second float 22 in the liquid level detection part 20 can read the height of the liquid level through different liquid level detection parts, especially when the liquid level is high, a liquid level can be The detection part is set to follow the liquid level, while the other liquid level detection part is set relatively low, so that a higher liquid level value can be read intuitively at a lower position, which solves the problem that the container is too high to be intuitively read.

For example, it is set so that the second float 22 moves downward when the first float 12 moves upward. When the liquid level is high, the position of the first float 12 is relatively high, while at the same time, the position of the second float 22 is relatively low, and the second liquid level detection member 20 with the lower float can be selected for reading. In this way, no matter whether the liquid level is high or low, the user can intuitively read a higher liquid level value at a lower position, which solves the problem that it is difficult to read when the container is high.

In addition, it can be seen from the above description that the connecting parts can be arranged in different forms, so that when the liquid level rises or falls, the first floater 12 and the second floater 22 move in the same or opposite direction.

For example, in some embodiments of the present invention, as shown in FIG. 1 , the connecting member includes a fixed pulley and a stay rope 31, one end of the stay rope 31 is connected with the first buoy 12, and the other end of the stay rope 31 is connected from the fixed pulley. The top of the pulley crosses the fixed pulley and is connected with the second float 22 .

The two floats are connected by the fixed pulley and the stay rope 31, the resistance of the fixed pulley is small or even negligible, and the floating situation of the first float 12 or the second float 22 can be sensitively felt, and the first float 12 and the second float 22 quickly reach the force balance state, so that the reading indicated by the float is accurate. Certainly, above-mentioned embodiment is only illustrative, can not be interpreted as the limitation of protection scope of the present invention, for example, described connector can be smooth hole and stay rope 31, and one end of stay rope 31 is connected with first buoy 12, pulls The other end of the rope 31 passes through the smooth hole and is connected with the second float 22; the connector can also be a smooth cylinder and a stay rope 31, and one end of the stay rope 31 is connected with the first float 12, and the other end stretched over the smooth cylinder It is connected with the second float 22.

Specifically, since the stay rope 31 is provided, the linkage of the two floats can be realized through the stay rope 31. Specifically, when using a fixed pulley and a stay rope 31, the stay rope 31 is hung on the fixed pulley and the two ends Connect the first float 12 and the second float 22 respectively, when the first float 12 moves up, the second float 22 will move down; when the first float 12 moves down, under the drive of the stay rope 31, the second float 22 will move up.

In addition, the pull cord 31 of the present invention can also be set so that one end applies upward pulling force to the first float 12, while the other end applies pulling force to the second float 22 in directions such as upward, downward, horizontal, and inclined; the pull cord 31 can also be provided with One end applies downward pulling force to the first float 22 , while the other end applies upward, downward, horizontal, inclined and other pulling force to the second float 22 . It can be adjusted by setting one or more fixed pulleys. In addition, in some cases, elastic members need to be set to assist. The scheme of pulling the second float 22 needs to provide an upward reset force to the second float 22 to realize the force balance of the second float 22 . That is to say, when the first float 12 follows the liquid surface and the second float 22 moves with the first float, if it is set that the stay rope 31 exerts a downward pulling force on the second float 22, at this time, elastic cords, etc. can be set. Pull the second float 22 upwards to realize the force balance of the second float 22 .

In addition, in another specific example of the present invention, the connecting member includes a pull rope 31 , the first float 12 is higher than the second float 22 , and the upper end of the pull rope 31 is connected to the first float 12 . At this time, the linkage between the first float 21 and the second float 22 can be realized only by setting the pull rope 31, and when only the pull rope 31 is used, the first float 12 and the second float 22 can move together in the same direction. For example, when the first float 12 moves upward, the second float 22 moves upward together under the action of the pull rope. Of course, other auxiliary elements can also be provided to assist the linkage between the first float 12 and the second float 22, such as the aforementioned fixed pulley. Specifically, as shown in FIG. 1 , the lower end of the pull rope 31 is connected with the second buoy 22 . In this way, when the liquid level is high, it can be read at a relatively low position, which is convenient for reading.

Optionally, the first float 12 is lower than the second float 22 , and the lower end of the pull rope 31 is connected to the first float 12 , and the upper end of the pull rope 31 is connected to the second float 22 . Alternatively, the first buoy 12 is at the same height as the second buoy 22 , and one end of the pull rope 31 is connected to the first buoy 12 , and the other end of the pull rope 31 is connected to the second buoy 22 .

In some specific embodiments, at least one of the first liquid level detection part 10 and the second liquid level detection part 20 is a magnetic flap liquid level gauge. At least one of the first liquid level detection part 10 and the second liquid level detection part 20 is a transparent tube liquid level gauge. For example, both the first liquid level detection part 10 and the second liquid level detection part 20 are magnetic flap liquid level gauges; or, the first liquid level detection part 10 is a magnetic flap liquid level gauge, and the second liquid level detection part 10 is a magnetic flap liquid level gauge. Part 20 is a transparent tube liquid level gauge; or, the first liquid level detection part 10 is a transparent tube liquid level gauge, and the second liquid level detection part 20 is a magnetic flap liquid level gauge; or, the first liquid level detection part 10 and The second liquid level detection part 20 is a transparent tube liquid level gauge; or, one of the first liquid level detection part 10 and the second liquid level detection part 20 is a transparent tube liquid level gauge or a magnetic flap liquid level gauge, and the other One for other forms of level gauges. Alternatively, the first liquid level detection part 10 is a magnetic flap liquid level gauge, and the second liquid level detection part 20 is a combination of a magnetic flap liquid level gauge and a transparent tube liquid level gauge; the first liquid level detection part 10 is a magnetic flip liquid level gauge. A combination of a plate liquid level gauge and a transparent tube liquid level gauge, and the second liquid level detection part 20 is a magnetic flap liquid level gauge. Wherein, the transparent tube liquid level gauge can be a transparent hose, and the transparent hose is led out from the tee or the valve of the magnetic flap level gauge, and the transparent hose is engraved with a scale. The transparent tube liquid level gauge is not easy to damage, and can accurately display the liquid level. The redundant setting of the hose liquid level and the magnetic flap liquid level gauge can ensure the reliability of liquid level measurement. At the same time, through the comparison of the two (if two If the display is inconsistent, it can be determined that the magnetic flap level gauge is faulty), and the display fault of the magnetic flap level gauge can be found in time and repaired, so as not to affect production and testing. In addition, the redundant arrangement of transparent tubes on the magnetic flap level gauge also facilitates the debugging of thermal hydraulic tests. It will be appreciated that more than one transparent hose may be provided to prevent breakage failure.

Further, the upper end and the lower end of the first float 12 are provided with temperature detection elements. Thermal hydraulic tests often pay attention to the condensation phenomenon of the liquid level in the container, and it is necessary to accurately obtain the temperature of the gas and liquid level near the liquid surface, and the first float 12 just has the characteristic of floating on the liquid surface. Therefore, the lower part of the first float 12 can be Temperature detection elements are arranged on the upper part and the upper part respectively, so that while measuring the liquid level, the gas and liquid temperature at the liquid level of the container can also be obtained conveniently, which meets the test requirements of the thermal and hydraulic part.

Likewise, temperature detection elements may also be provided at both the upper end and the lower end of the second float 22 .

In some embodiments, as shown in FIG. 1 , scales 40 are provided on both the first body 11 and the second body 21 , and the scale 40 on the first body 11 is in the same direction as, opposite to, or opposite to, the scale 40 on the second body 21 . An included angle at a predetermined angle. In other words, the two scales 40 can be set at different angles, so that users can read from different directions and angles, which improves reliability and is more humane.

In some optional embodiments, at least one of a liquid level gauge and a volume gauge is provided on the first body 11 . At least one of a liquid level gauge and a volume gauge is provided on the second body 21 . For example, the first main body 11 is provided with a liquid level scale and a volume scale at the same time, and the second main body 21 is simultaneously provided with a liquid level scale and a volume scale; 21 is provided with a liquid level scale; the first main body 11 is provided with a liquid level scale and a volume scale at the same time, and the second main body 21 is provided with a volume scale; There are liquid level scales and volume scales; the first main body 11 is provided with a liquid level scale, and the second main body 21 is also provided with a liquid level scale and a volume scale. It can be understood that we care about the liquid level of the container through the liquid level gauge. In fact, sometimes we care about the remaining liquid content of the container. Through the setting of the volume scale, the user can directly read the liquid content in the container.

In a specific embodiment, at least one of the first body 11 and the second body 21 is provided with an axial scale and an axial scale, wherein the axial scale is used to mark the height of the liquid level, and the circumferential scale is used to mark the container Dimensions, the circumferential scale is rotatable relative to the axial scale. It can be understood that the liquid level detection device 100 can be applied to many occasions. In different occasions, the inner diameter of the container may be different. Directly engraving the volume scale on the scale is only applicable to a specific container, which is too restrictive. Therefore, the volume values of different inner diameters can be engraved on the circumferential direction of the circumferential scale, and the volume values of the same inner diameter can be engraved on the axial direction of the circumferential scale, and the circumferential scale can be rotated. In this way, the circumferential scale and the axial scale can be used together to realize intuitive measurement of the liquid content in containers with different inner diameters. For example, for a common cylindrical container, the first body 11 and the second body 21 are provided with a circumferential scale and an axial scale at the same time, the device with the circumferential scale can be cylindrical, the circumferential scale is the inner diameter value, and the shaft The vertical scale is the elevation value, and the two-dimensional scale on the cylindrical surface indicates the volume value corresponding to different inner diameters and different elevations. In this way, for different cylindrical containers, only the first main body 11 or the second main body 21 needs to be rotated so that the circumferential scale is the inner diameter of the container, and the liquid content can be read according to the elevation.

The container according to the embodiment of the present invention includes: a cavity and the liquid level detection device 100 of the above embodiment. Wherein, a cavity is formed in the cavity. Since the liquid level detection device 100 of the above embodiment can intuitively read a higher liquid level value at a lower position, it solves the problem that the container is high and difficult to read intuitively, therefore, according to the embodiment of the present invention, the Container reading is easy.

In some embodiments, the first liquid level detection element 10 is disposed inside the cavity, and the second liquid level detection element 10 is disposed outside the cavity.

Taking the first liquid level detection part 10 as an example of a magnetic flap liquid level gauge, the magnetic flap liquid level gauge includes a hollow metal tube and a magnetic plate indicator. Usually, the magnetic flap liquid level gauge placed outside the container (because it is close to normal temperature) has a large error when measuring the liquid level of the high-temperature medium in the container. Therefore, the magnetic flap liquid level gauge can be set as an interpolation type, such as a flange opening is left on the top of the container near the edge, through which the hollow metal tube with the first floating ball is inserted into the Inside the container, the magnetic plate indicator is correspondingly arranged at the outer wall of the container via the container wall. In this way, regardless of the temperature in the container, the first float 12 can truly display the liquid level in the container, which solves the measurement error caused by the difference in cold and hot density when the conventional magnetic flap liquid level gauge measures the high temperature liquid level question.

In some other embodiments, the first liquid level detection part 10 directly communicates with the inner space of the cavity, and the second liquid level detection part 20 is arranged at a position not higher than the first liquid level detection part 10 .

Moreover, the second liquid level detection part 20 is not higher than the first liquid level detection part 10, so reading can be performed at a lower position. In addition, the arrangement of multiple liquid level detection devices 100 can improve reliability. After the conventional liquid level detection device fails, in order to ensure safety or data reliability, it is necessary to suspend the production or test process, but in the present invention, when a certain liquid level detection device 100 fails, another liquid level detection device 100 can be used for reading. No need to pause experiments or production.

In some embodiments, multiple liquid level detection devices 100 are disposed on the cavity.

In a specific embodiment, for a container with a height of four meters, the configured liquid level detection device 100 is composed of the first main body 11 and the second main body 21 where two floats are arranged side by side, and a magnetic plate indicator, and the first float 12 It is connected with the second float 22 through a fixed pulley and a steel wire rope (about four meters long), wherein the magnetic flap liquid level gauge on the left is communicated with the liquid level in the container. When the liquid level is below two meters, the left first float 12 connected by the fixed pulley is located at the lower part, and the right second float 22 is located at the upper part, which can be read by the left magnetic flap liquid level gauge. When reaching more than two meters, the first floater 12 on the left side is located at the upper part, and the second floater 22 on the right side is located at the lower part, which can be read by the magnetic flap liquid level gauge on the right side. In this way, the user can obtain the liquid level reading of the higher container conveniently and intuitively.

In describing the present invention, it is to be understood that the terms "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. a kind of liquid level detection device characterized by comprising

First level sensing part, the first level sensing part include the first main body and can floating ground be set to first main body on The first float；

Second level sensing part, the second level sensing part include the second main body and it is relocatable be set to second main body on The second float；

Connector, the connector are connected with first float and second float respectively, and first float and institute State the linkage of the second float.

2. liquid level detection device according to claim 1, which is characterized in that the connector includes fixed pulley and drawstring, One end of the drawstring is connected with first float, and the other end of the drawstring crossed from the upper surface of described pulley it is described fixed Pulley is connected with second float.

3. liquid level detection device according to claim 1, which is characterized in that the connector includes drawstring, and described first Float is higher than second float, and the upper end of the drawstring is connected with first float, the lower end of the drawstring with it is described Second float is connected.

4. liquid level detection device according to claim 1, which is characterized in that

At least one of the first level sensing part and the second level sensing part are magnetic double level gauge；And/or

At least one of the first level sensing part and the second level sensing part are transparent pipe liquidometer.

5. liquid level detection device according to claim 1, which is characterized in that the top and bottom of first float are all provided with There is temperature detecting element.

6. liquid level detection device according to claim 1, which is characterized in that in first main body and second main body Be equipped with scale, the scale in the scale in first main body and second main body in the same direction, it is reversed or at predetermined angular Angle.

7. benefit requires 1 liquid level detection device stated, which is characterized in that

First main body is equipped at least one of Liquid level scale and volume scale；And/or

Second main body is equipped at least one of Liquid level scale and volume scale.

8. according to liquid level detection device described in claim 1, which is characterized in that in first main body and second main body At least one is equipped with:

For identifying the axial scale of liquid level；

For the circumferential scale of identified container size, the circumferential direction scale can be rotated relative to the axial scale.

9. a kind of container characterized by comprising

Cavity is formed with cavity in the cavity；

Liquid level detection device, the liquid level detection device are according to liquid level detection device of any of claims 1-8.

10. container according to claim 9, which is characterized in that

The first level sensing part is set in the cavity, and the second level sensing part is set to outside cavity；Or

The first level sensing part is directly connected to the inner space of the cavity, and the second level sensing part is located at not Higher than the position of the first level sensing part；Or

The cavity is equipped with multiple liquid level detection devices.