CN218384208U - Hydraulic oil leakage detection device and hydraulic pipeline leakage monitoring and alarming system - Google Patents

Abstract

The utility model relates to the technical field of hydraulic systems, in particular to a hydraulic oil leakage detection device and a hydraulic pipeline leakage monitoring alarm system, wherein the hydraulic oil leakage detection device comprises a collection bin and a capacitance sensing assembly, and the collection bin is sleeved outside a hydraulic pipeline; the capacitance sensing assembly is attached to the inner wall of the lower side of the collecting bin along the gravity direction. According to the utility model discloses a detection device is revealed to hydraulic oil, collect the storehouse and collect inside collecting the storehouse with the hydraulic oil of revealing, after electric capacity sensing subassembly touched hydraulic oil, the inside electric capacity size of electric capacity sensing subassembly changed, and electric capacity sensing subassembly turns into voltage signal output according to the change of its electric capacity and gives the control unit, and the control unit calculates according to voltage signal's change and judges the oil leak condition.

Description

Hydraulic oil leakage detection device and hydraulic pipeline leakage monitoring and alarming system

Technical Field

The utility model relates to a hydraulic system technical field especially relates to a detection device is revealed to hydraulic oil and hydraulic line reveals monitoring alarm system.

Background

In the prior art, the oil leakage condition is judged according to the liquid level information of an oil pipe and/or an oil tank, but in a hydraulic pipeline system, the pressure is changed, so the volume of hydraulic oil is also changed, the liquid level information has larger errors, and the error of the system for judging the oil leakage condition is larger.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the error is big when hydraulic system judges the oil leak situation at least. The purpose is realized by the following technical scheme:

the utility model discloses a first aspect provides a detection device is revealed to hydraulic oil, include:

the collecting bin is sleeved on the outer side of the hydraulic pipeline;

and the capacitance sensing assembly is attached to the inner wall of the lower side of the collection bin along the gravity direction.

According to the utility model discloses a detection device is revealed to hydraulic oil, collect the storehouse and collect the hydraulic oil of revealing inside collecting the storehouse, electric capacity sensing subassembly has absorbed behind the hydraulic oil, thereby medium between the electric capacity sensing subassembly can change and influence the electric capacity size, and the electric capacity size changes, and electric capacity sensing subassembly can be according to the change of its electric capacity, turns into voltage signal output and gives the control unit.

Additionally, according to the utility model discloses a detection device is revealed to hydraulic oil still can have following additional technical characterstic:

the utility model discloses an in some embodiments, electric capacity sensing subassembly includes oil absorption dielectric layer and two electrode layers, oil absorption dielectric layer clamp is established two between the electrode layer.

In some embodiments of the present invention, the oil-absorbing dielectric layer is a sponge layer.

In some embodiments of the present invention, the electrode layer is a metal sheet, and at least two openings are formed on the surface of the electrode layer.

The utility model discloses an in some embodiments, detection device is revealed to hydraulic oil still includes sealed clamp, sealed clamp be used for with collect the both ends lock hoop in storehouse and be in on the hydraulic pressure pipeline.

In some embodiments of the present invention, the collecting chamber is made of soluble teflon or fluorinated ethylene propylene.

In some embodiments of the invention, the lower side of the collecting bin is funnel-shaped.

The second aspect of the utility model provides a monitoring alarm system is revealed to hydraulic line, reveal detection device including above-mentioned hydraulic oil.

The utility model discloses an in some embodiments, hydraulic line reveals monitoring alarm system still includes the control unit, the control unit is connected with electric capacity sensing subassembly electricity, the control unit can receive electric capacity sensing subassembly's detection information.

The utility model discloses an in some embodiments, hydraulic line reveals monitoring alarm system still includes alarm unit, the control unit with alarm unit connects, the control unit is based on capacitance sensing subassembly's detection information control alarm unit.

According to the utility model discloses a monitoring alarm system is revealed to hydraulic pressure pipeline, carries out analysis, operation and warning to it after the voltage signal that the control unit accepted electric capacity sensing subassembly and transmitted. The alarm unit is connected with the control unit, so that a user can obtain alarm information more visually.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a schematic structural diagram of a hydraulic pipeline leakage monitoring and alarming system according to an embodiment of the present invention;

fig. 2 schematically illustrates a front view of a capacitive sensing assembly according to an embodiment of the invention;

fig. 3 schematically showsbase:Sub>A cross-sectional view of the planebase:Sub>A-base:Sub>A in fig. 2.

The reference numbers are as follows:

10 is a hydraulic pipeline;

20 is a hydraulic oil leakage detection device, 21 is a collection bin, 22 is a capacitance sensing assembly, 221 is an electrode layer, 2211 is an opening, and 222 is an oil absorption dielectric layer;

30 is a control unit;

40 is an alarm unit;

and 50 is a conducting wire.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience in description, the relationship of one element or feature to another element or feature as illustrated in the figures may be described herein using spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "over", and the like. This spatially relative term is intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "in 8230 \8230; below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to fig. 3, according to the embodiment of the present invention, a hydraulic oil leakage detection device 20 is provided, including a collection bin 21 and a capacitance sensing component 22, the collection bin 21 is sleeved outside the hydraulic pipeline 10 for collecting the hydraulic oil leaked from the flange connection. The capacitance sensing assembly 22 is attached to the inner wall of the lower side of the collecting bin 21 along the gravity direction, when hydraulic oil leaks, the hydraulic oil flows to the bin bottom of the collecting bin 21 due to gravity, and the capacitance sensing assembly 22 is arranged at the position to detect whether the hydraulic pipeline 10 leaks or not more quickly. The capacitive sensor 22 is electrically connected to the control unit 30, specifically, the capacitive sensing component 22 is connected to a conducting wire 50, the other end of the conducting wire 50 is connected to the control unit 30, and after the capacitive sensing component 22 absorbs hydraulic oil, a medium between the capacitive sensing components 22 changes to affect the capacitance of the capacitive sensing component. Specifically, in the case of no leakage in the hydraulic line 10, the medium inside the capacitance sensing assembly 22 is air, and the dielectric constant is 1, and in the case of leakage in the hydraulic line 10, the medium inside the capacitance sensing assembly 22 becomes hydraulic oil, and the dielectric constant is 2 to 3. The capacitance sensing assembly 22 converts the change in capacitance into a voltage signal that is output to the control unit 30. According to the utility model discloses a detection device 20 is revealed to hydraulic oil, and collect storehouse 21 inside collecting storehouse 21 the hydraulic oil of will revealing, after electric capacity sensing subassembly 22 has absorbed hydraulic oil, thereby the medium between electric capacity sensing subassembly 22 can change and influence the electric capacity size, and the electric capacity size changes, and electric capacity sensing subassembly 22 can be according to the change of its electric capacity, turns into voltage signal output and gives the control unit 30.

It can be understood that the capacitance sensing assembly 22 includes an oil-absorbing dielectric layer 222 and two electrode layers 221, and the oil-absorbing dielectric layer 222 is sandwiched between the two electrode layers 221.

Specifically, the oil absorption dielectric layer 222 of the capacitance sensing assembly 22 is made of an oil absorption sponge, the oil absorption sponge can quickly absorb leaked hydraulic oil, the size of the capacitor can be changed under the action of a dielectric medium, the leaked hydraulic oil can be absorbed and collected, and the hydraulic oil is prevented from flowing to other places.

Specifically, the electrode layer 221 of the capacitance sensing assembly 22 is a metal sheet, and at least two openings 2211 are formed on the surface of the electrode layer 221. The size and number of the openings 2211 determine the rate of absorbing hydraulic oil by the oil-absorbing dielectric layer 222, so on the premise that the structural characteristics of the capacitance sensing component 22 are satisfied, i.e., the oil-absorbing dielectric layer 222 can be effectively clamped, the larger the size of the openings 2211 is, the better the size of the openings 2211 is, and the larger the number of the openings 2211 is, the better the size of the openings 2211 is.

It will be appreciated that the ends of the collection chamber 21 are clamped to the hydraulic lines 10 by seal clips. In order to prevent rainwater or moist air outside the collection bin 21 from affecting the oil-absorbing dielectric layer 222 in the capacitance sensing assembly 22, the two ends of the collection bin 21 are sealed on the hydraulic pipeline 10 through sealing clips, so that rainwater or moist air is prevented from entering the collection bin 21, and false alarm of the hydraulic oil leakage detection device 20 is reduced.

In some embodiments, the material of the collecting chamber 21 may be soluble teflon or polyperfluoroethylene propylene. The two materials have the characteristics of high temperature exposure resistance, excellent light transmittance, corrosion resistance, low manufacturing cost and insolubility in organic solvents. These characteristics determine that both materials are extremely suitable as materials for the collecting chamber 21.

Specifically, the lower side of the collecting bin 21 is funnel-shaped. In order to conveniently and rapidly and accurately measure whether the hydraulic pipeline 10 leaks oil or not, the bottom of the collection bin 21 is designed to be a funnel shape, the capacitance sensing component 22 is installed at the lowest position of the collection bin 21, hydraulic oil flows to the lowest position of the collection bin 21 under the action of gravity, and the capacitance sensing component 22 can rapidly collect all leaked hydraulic oil. If the collection bin 21 is designed to be flat, part of hydraulic oil is not easily absorbed by the capacitance sensing assembly 22, and the accuracy of the capacitance sensing assembly 22 in judging the leakage condition is affected.

Additionally, the utility model also provides a hydraulic line reveals monitoring alarm system, reveal detection device 20 including at least one foretell hydraulic oil. The hydraulic oil leakage detecting device 20 may be installed at a plurality of leakage-prone points, such as flange joints of hydraulic pipes or aged sections of hydraulic pipes.

It can be understood that the hydraulic pipeline leakage monitoring and alarming system further comprises a control unit 30, the control unit 30 is electrically connected with the capacitance sensing assemblies 22, the specific mode is that the control unit 30 is connected with the capacitance sensing assemblies 22 through a conducting wire 50, the hydraulic pipeline leakage monitoring and alarming system can comprise a plurality of hydraulic oil leakage detection devices 20, the control unit 30 can be connected with the capacitance sensing assemblies 22, and voltage signals collected by the capacitance sensing assemblies 22 are analyzed, operated and alarmed. The fixed-point monitoring can detect the specific leakage position, improve the monitoring accuracy and prevent false alarm.

It will be appreciated that the alarm unit 40 is connected to the control unit 30, so that the user can more intuitively find the alarm information. The alarm unit 40 may be a row of red bulbs, and when a leakage accident occurs at a certain section, the red bulb corresponding to the section will be turned on to remind the user that the leakage accident occurs there. Although the control unit 30 may also display alarm information, it is not intuitive, for example, the leaked alarm information needs to be seen on a central control computer, and after the alarm unit 40 is connected, a user can find the leakage of the hydraulic system at the first time and dispose the leakage in time.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a detection device is revealed to hydraulic oil which characterized in that includes:

the collecting bin is sleeved on the outer side of the hydraulic pipeline;

and the capacitance sensing assembly is attached to the inner wall of the lower side of the collection bin along the gravity direction.

2. The hydraulic oil leakage detection device according to claim 1, wherein the capacitance sensing assembly includes an oil-absorbing dielectric layer and two electrode layers, and the oil-absorbing dielectric layer is sandwiched between the two electrode layers.

3. The hydraulic oil leakage detection device according to claim 2, wherein the oil-absorbing dielectric layer is a sponge layer.

4. The hydraulic oil leakage detection device of claim 2, wherein the electrode layer is a metal sheet, and at least two openings are formed in the surface of the electrode layer.

5. The hydraulic oil leakage detection device according to claim 1, further comprising a sealing clamp for clamping both ends of the collection chamber to the hydraulic line.

6. The hydraulic oil leakage detection device of claim 1, wherein the collection bin is made of soluble polytetrafluoroethylene or fluorinated ethylene propylene.

7. The hydraulic oil leakage detection device according to claim 1, wherein a lower side of the collection bin is funnel-shaped.

8. A hydraulic oil leakage monitoring and warning system, characterized by comprising at least one hydraulic oil leakage detection device according to any one of claims 1 to 7.

9. The hydraulic line leakage monitoring and warning system of claim 8, further comprising a control unit electrically connected to the capacitive sensing assembly, wherein the control unit is capable of receiving detection information from the capacitive sensing assembly.

10. The hydraulic pipeline leakage monitoring and alarming system of claim 9, further comprising an alarm unit, wherein the control unit is connected with the alarm unit, and the control unit controls the alarm unit based on the detection information of the capacitance sensing assembly.

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