Liquid level measuring device

Abstract

The utility model belongs to the technical field of liquid level measurement, particularly relates to a liquid level measuring device, and aims to solve the problem of how to measure different liquid levels of oil mixed liquid. The device comprises a frame body (1), an outer sleeve (2) is arranged at one end of the frame body (1) in a sliding mode, a lifting driving device is arranged at the other end of the frame body (1), an inner rod (3) is arranged in the outer sleeve (2), the upper end of the inner rod (3) is connected with the lifting driving device and moves up and down along with the lifting driving device, a buoy (4) is fixedly arranged at the lower end of the outer sleeve (2), and an installation block (5) is arranged at the lower end of the inner rod (3). And two conductor rods (6) are arranged at the lower end of the mounting block (5). The liquid level measuring device has the characteristics of simple structure, high automation degree and convenience in measuring each liquid level of the water-oil mixed liquid.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquid level measurement technical field, concretely relates to a liquid level measuring device. BACKGROUND

[0002] In the natural gas exploitation process, the liquid extracted with the natural gas needs to be recycled and transported for processing, and the liquid being transported needs to be measured to obtain the liquid level height of different liquids (oil, water) in order to calculate the mass of different liquids respectively.

[0003] When measuring the liquid level height, the prior art generally measures by setting a float type liquid level meter on the container. However, the float liquid level meter is not suitable for measuring oil-water mixtures mixed with multiple media.

[0004] In the prior art, a liquid level measuring device is disclosed in CN207717196U. When in use, the outer sleeve body is first lowered into the container from the opening of the container, then the measuring tube is inserted into the liquid to be measured, the sealing part of the outer sleeve body is operated to seal the opening of the measuring tube, and the measuring tube is taken out from the container together with the outer sleeve body, so that the liquid level height of the liquid to be measured can be directly observed. Similarly, the oil layer, water layer and additive layer in the flowback fluid can be directly observed by using the device. However, the above technical solution needs to be inserted and sampled manually, which increases the labor intensity, reduces the production efficiency, and requires a high operation skill level of the operator, so it is difficult to achieve accurate and true measurement data. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems in the prior art, i.e., how to measure different liquid levels of oil-liquid mixed liquid, the utility model provides a liquid level measuring device.

[0006] The technical scheme of the utility model comprises:

[0007] A liquid level measuring device, characterized in that: comprising a frame body (1), one end of the frame body (1) is slidably provided with an outer sleeve pipe (2), the other end is provided with a lifting driving device, an inner rod (3) is arranged in the outer sleeve pipe (2), the upper end of the inner rod (3) is connected with the lifting driving device and moves up and down with the lifting driving device, and a float (4) is fixedly arranged at the lower end of the outer sleeve pipe (2), an installation block (5) is arranged at the lower end of the inner rod (3), and two conductor rods (6) are arranged at the lower end of the installation block (5).

[0008] As a further technical scheme, a sliding sleeve (9) is further arranged, the sliding sleeve (9) is sleeved on the lower end of the inner rod (3), a spring (10) is arranged in the sliding sleeve (9), the upper end of the spring (10) is fixedly connected with the sliding sleeve (9), and the lower end of the spring (10) is fixedly connected with the upper end of the installation block (5).

[0009] As a further technical scheme, the bottom plate of the sliding sleeve (9) is provided with two through holes matched with the conductor rods (6), and the conductor rods (6) are respectively arranged in the through holes.

[0010] As a further technical scheme, the sliding sleeve (9) is made of insulating material.

[0011] As a further technical scheme, the lifting driving device is a multi-stage telescopic hydraulic oil cylinder (8).

[0012] As a further technical scheme, the lifting driving device is a gear and rack device.

[0013] As a further technical scheme, the end of the frame body (1) is further provided with a distance sensor (7) matched with an outer protrusion (11) arranged at the upper end of the sleeve pipe (2).

[0014] As a further technical scheme, the outer side of the root of the conductor rod (6) is coated with an insulating coating.

[0015] The beneficial effects of the utility model are as follows:

[0016] (1) The utility model discloses a sleeve pipe and an inner rod in the sleeve pipe, when measuring, the lifting structure is first in the state of extension, then the inner rod is lowered by the lifting structure, and the sleeve pipe is lowered together, wherein the overall density of the sleeve pipe and the float is less than the density of oil, and the float stops after contacting the oil, at the moment, the descending height of the sleeve pipe is judged, and the oil level height can be judged, then the inner rod contacts the upper surface of water when descending, and the electrolyte in water conducts the two conductor rods, and whether the water level surface is contacted is judged by judging the potential difference between the two conductor rods, at the moment, the water level height can be judged according to the descending height of the lifting structure, and the automatic measurement of the oil-water level is realized.

[0017] (2) The utility model discloses that the root of the conductor rod is provided with an insulating coating, which can prevent the two conductor rods from being conducted by the residual water of the root of the conductor rod and the mounting block.

[0018] (3) The utility model discloses that the through hole matched with the sliding sleeve and the conductor rod is arranged, and when the conductor rod is separated from the bottom end of the sliding sleeve, the through hole can scrape off the water and oil on the surface of the conductor rod. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0020] Figure 1 It is the structure schematic view of the liquid level measuring device of the utility model.

[0021] Figure 2 is the explosion schematic view of the liquid level measuring device.

[0022] Figure 3 is the structural schematic view of the liquid level measuring device from another angle.

[0023] Reference signs:

[0024] 1 - mounting frame, 2 - outer sleeve, 3 - inner rod, 4 - float, 5 - mounting block, 6 - conductor bar, 7 - distance sensor, 8 - multi-stage telescopic hydraulic cylinder, 9 - sliding sleeve, 10 - spring, 11 - outer convex part. DETAILED DESCRIPTION

[0025] The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description.

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0027] The utility model provides a liquid level measuring device.

[0028] As Figure 1 , 2 , 3, the outer sleeve 2 is slidably installed on the mounting frame 1, the inner rod 3 is installed in the outer sleeve 2, the float 4 is installed at the lower part of the outer sleeve 2, the mounting block 5 is installed at the lower end of the inner rod 3, two conductor bars 6 are installed on the mounting block 5 at intervals, and the lifting structure is installed on the mounting frame 1 and connected with the inner rod 3 at the lifting end.

[0029] The outer sleeve 2 is provided with an outer convex part 11 at the upper end, the distance sensor 7 is arranged on the mounting frame 1, the sensing end of the distance sensor 7 faces the outer convex part 11, the distance between the outer sleeve 2 and the outer convex part 11 is detected by the distance sensor 7 without contact, and the descending distance of the outer sleeve 2 is judged.

[0030] The lifting structure comprises a multi-stage telescopic hydraulic cylinder 8, the multi-stage telescopic hydraulic cylinder 8 is fixedly installed on the mounting frame 1, the telescopic end of the multi-stage telescopic hydraulic cylinder 8 is connected with the upper end of the inner rod 3, and the inner rod 3 is lifted and lowered by the telescopic driving of the multi-stage telescopic hydraulic cylinder 8.

[0031] The sliding sleeve 9 is sleeved on the mounting block 5, the inner side upper end of the sliding sleeve 9 is connected with the upper end of the spring 10, the lower end of the spring 10 is connected with the upper end of the mounting block 5, and the lower end plate of the sliding sleeve 9 is provided with two through holes matched with the diameter of the conductor rod 6 and is sleeved on the conductor rod 6, when the use is finished, the lifting structure drives the inner rod 3 to ascend, when the upper end of the sliding sleeve 9 contacts the float 4 and the float 4 contacts the mounting frame 1, the sliding sleeve 9 is extruded, thereby driving the outer sleeve 2 to descend relative to the conductor rod 6 against the action force of the spring 10, and residual water and oil on the conductor rod 6 are scraped off, and the next measurement process is waited.

[0032] The sliding sleeve 9 is made of insulating material, and the outer side of the root of the conductor rod 6 is coated with an insulating coating, so that the water remaining at the root of the mounting block 5 does not cause the two conductor rods 6 to be conductive when not contacting the water surface.

[0033] Those skilled in the art should connect all electrical components in the present case with their matched power supply through wires, and should select appropriate controllers according to actual conditions to meet the control requirements. The specific connection and control sequence should be completed according to the working order of the electrical components in the working principle described below. The detailed connection means is a common technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

[0034] The working principle of the utility model is:

[0035] When it is necessary to measure the liquid level, the lifting structure is in the extended state first, the lifting structure drives the inner rod 3 to descend, and then the outer sleeve 2 descends together. The overall density of the outer sleeve 2 and the float 4 is less than the density of the oil liquid, and then the float 4 stops after contacting the oil liquid. At this time, the descending height of the outer sleeve 2 is determined, and the oil level height can be determined. When the inner rod 3 descends and contacts the upper surface of the water, the electrolyte in the water will conduct the two conductor rods 6, and then the potential difference between the two conductor rods 6 on the mounting block 5 is determined to determine whether the water level surface is contacted. At this time, the descending height of the lifting structure can be determined to determine the water level height.

[0036] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and "third" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In addition, it needs to be explained that, in the description of the utility model, unless another explicit provision and limitation, the term "mount", "link", "connect" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected; can be mechanical connection, also can be electrical connection; can be directly connected, also can pass through the indirect connection of intermediate medium, can be two elements inside the communication. For the person skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0038] The term "comprising" or any other similar word is intended to encompass a non-exclusive inclusion, so that a process, method, article, or equipment / device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes the elements inherent in these processes, methods, articles or equipment / devices.

[0039] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but the person skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, the person skilled in the art can make equivalent changes or replacements to the related technical features, and the technical schemes after these changes or replacements will fall within the protection scope of the utility model.

Claims

1. A liquid level measuring device, characterized by: The utility model provides a kind of lifting device, including frame (1), the outer sleeve (2) is slidably arranged in one end of the frame (1), the other end is provided with lifting drive device, the inner rod (3) is arranged in the outer sleeve (2), the inner rod (3) upper end is connected with the lifting drive device and moves up and down with it, and the outer sleeve (2) lower end is fixedly provided with buoy (4), the inner rod (3) lower end is provided with mounting block (5), the mounting block (5) lower end is provided with two conductor bars (6).

2. The liquid level measuring device of claim 1, wherein: It also includes sliding sleeve (9), the sliding sleeve (9) is sleeved in the inner rod (3) lower end, and spring (10) is arranged in sliding sleeve (9), the spring (10) upper end is fixedly connected with the sliding sleeve (9), and the spring (10) lower end is fixedly connected with the mounting block (5) upper end.

3. The liquid level measuring device of claim 2, wherein: Two through holes adapted to the conductor bar (6) are provided on the bottom plate of the sliding sleeve (9), and the conductor bar (6) is respectively arranged in the through hole.

4. The liquid level measuring device of claim 3, wherein: The sliding sleeve (9) is made of insulating material.

5. The liquid level measuring device of claim 1, wherein: The lifting drive device is a multi-stage telescopic hydraulic cylinder (8).

6. The liquid level measuring device of claim 1, wherein: The frame (1) end is also provided with a distance sensor (7), and the distance sensor (7) is adapted to the outer convex part (11) provided on the upper end of the outer sleeve (2).

7. The liquid level measuring device of claim 1, wherein: The outer side of the root of the conductor bar (6) is coated with an insulating coating.

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