Downhole portable transparent water level meter

Abstract

The utility model relates to the technical field of goaf water level height measurement, and discloses an underground portable transparent water level meter which is characterized in that in the using process, a water drainage hole is formed in a roadway at the bottom of a goaf, a water drainage pipe extends into the goaf through the water drainage hole and is communicated with water in the goaf, and a transparent hose is arranged in a hoistway; and the goaf, the drainage pipe and the transparent hose form a communicating vessel structure with communicated bottoms. According to the principle of the communicating vessel, the liquid levels in the containers of the communicating vessel are kept level under the condition that liquid does not flow, so that the water level height in the goaf can be accurately judged only by observing the liquid level height in the transparent hose, the water level height of accumulated water in the goaf can be monitored in real time, the accuracy is high, and the accuracy is high. And the measurement precision reaches 1cm. In addition, the underground portable transparent water level meter is small in size, light in weight, bendable, not prone to damage, convenient to use and carry and capable of being repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of water level measurement in goaf areas, in particular to an underground portable transparent water level measuring meter. Background Art

[0002] At present, in the process of underground coal mining in coal mines, in order to ensure the safety during the excavation of the working face, the water level of the goaf area must always be kept below 0.015MPa (1.5m). In order to monitor the water level of the goaf area in real time, a drainage hole is usually drilled in the goaf area, and a drainage pipe is inserted on the drainage hole. A pressure gauge is installed on the drainage pipe, and the water level in the goaf is calculated by the data of the pressure gauge. However, when the water level in the goaf is low (0.015MPa), the measurement data of the pressure gauge has a large error and cannot truly reflect the height of the water in the goaf. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the embodiment of the utility model proposes a portable underground transparent water level meter, which can monitor the water level height of the water in the goaf in real time, and has high accuracy, and the measurement accuracy reaches 1cm. In addition, the portable underground transparent water level meter of the embodiment of the utility model is small in size, light in weight, bendable, not easy to damage, easy to use and carry, and can be reused.

[0004] The portable transparent underground water level measuring meter of the embodiment of the utility model comprises a drainage pipe and a transparent hose, the water inlet end of the drainage pipe is used to extend into the bottom of the goaf, the water outlet end of the drainage pipe is used to be placed in the well for drainage, and a water inlet is provided on the pipe wall of the drainage pipe; the water inlet end of the transparent hose is connected to the water inlet of the drainage pipe.

[0005] In some embodiments, the portable transparent downhole water level measuring meter of the utility model embodiment includes a water diversion pipe, the water inlet end of the water diversion pipe is connected to the water inlet of the drainage pipe, and the water inlet end of the transparent hose is inserted into the water outlet end of the water diversion pipe.

[0006] In some embodiments, the water diversion pipe is arranged perpendicular to the drainage pipe.

[0007] In some embodiments, a strapping belt is provided on the outer circumference of the transparent hose, and the strapping belt is used to strap the transparent hose to the water pipe.

[0008] In some embodiments, an annular groove is provided on the outer circumferential surface of the water diversion pipe, and the binding position of the binding belt corresponds to the annular groove.

[0009] In some embodiments, a first stop valve is provided at the water outlet end of the transparent hose.

[0010] In some embodiments, a pressure gauge is provided on the drainage pipe, and the pressure gauge is located upstream of the water diversion pipe.

[0011] In some embodiments, a second stop valve is provided at the water outlet end of the drain pipe.

[0012] In some embodiments, the inner diameter of the transparent hose is 6 mm-10 mm.

[0013] In some embodiments, the length of the transparent hose is 2m-3m.

[0014] During the use of the underground portable transparent water level measuring meter of the embodiment of the utility model, a drain hole is set in the tunnel at the bottom of the goaf, the drain pipe extends into the goaf through the drain hole and communicates with the water in the goaf, the transparent hose is placed in the shaft, and the goaf, the drain pipe and the transparent hose form a communicating vessel structure with the bottom interconnected. According to the principle of the communicating vessel, when the liquid does not flow, the liquid levels in each container of the communicating vessel should remain level, so it is only necessary to observe the liquid level height in the transparent hose to accurately judge the water level height in the goaf, so as to achieve real-time monitoring of the water level height of the accumulated water in the goaf, and the accuracy is high, and the measurement accuracy reaches 1cm. In addition, the underground portable transparent water level measuring meter of the embodiment of the utility model is small in size, light in weight, bendable, not easy to damage, easy to use and carry, and reusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the installation of a portable transparent water level measuring meter for underground wells according to an embodiment of the utility model.

[0016] Figure 2 The present invention is a schematic structural diagram of a portable underground transparent water level measuring meter according to an embodiment of the utility model, in which the transparent hose is hidden.

[0017] Reference numerals:

[0018] 1. Drain pipe; 2. Transparent hose; 3. Water pipe; 301. Annular groove; 4. Strapping belt; 5. First stop valve; 6. Pressure gauge; 7. Second stop valve. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0020] The technical solution of the present application is described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2As shown, the underground portable transparent water level measuring instrument of the utility model embodiment comprises a drainage pipe 1 and a transparent hose 2. The water inlet end of the drainage pipe 1 is used to extend into the bottom of the goaf, and the water outlet end of the drainage pipe 1 is used to be placed in the well for drainage. A water inlet is provided on the pipe wall of the drainage pipe 1, and the water inlet end of the transparent hose 2 is connected to the water inlet of the drainage pipe 1.

[0022] During the use of the underground portable transparent water level measuring meter of the embodiment of the utility model, a drain hole is set in the tunnel at the bottom of the goaf, the drain pipe 1 extends into the goaf through the drain hole and communicates with the water in the goaf, the transparent hose 2 is placed in the shaft, and the goaf, the drain pipe 1 and the transparent hose 2 form a communicating vessel structure with the bottom interconnected. According to the principle of the communicating vessel, when the liquid does not flow, the liquid levels in each container of the communicating vessel should remain level, so it is only necessary to observe the liquid level height in the transparent hose 2 to accurately judge the water level height in the goaf, so as to achieve real-time monitoring of the water level height of the accumulated water in the goaf, and the accuracy is high, and the measurement accuracy reaches 1 cm. In addition, the underground portable transparent water level measuring meter of the embodiment of the utility model is small in size, light in weight, bendable, not easy to damage, easy to use and carry, and reusable.

[0023] It should be noted that when the same liquid is injected into the containers that are interconnected at the bottom, the liquid levels of the containers in the communicating vessels always remain at the same level when the liquid is not flowing. The principle of communicating vessels can be explained by liquid pressure. If the same liquid is filled in a U-shaped glass tube, and a small liquid sheet AB is assumed in the middle of the bottom of the communicating vessel, if the liquid is stationary, the pressure of the liquid in the left tube on the liquid sheet AB to the right must be equal to the pressure of the liquid in the right tube on the liquid sheet AB to the left, because the communicating vessel contains the same liquid, and the density of the left and right liquid columns is the same. According to the formula of liquid pressure P = ρgh, it can be seen that the pressure of the liquid columns on the liquid sheet AB on both sides can be equal only when the heights of the liquid columns on both sides are equal.

[0024] In some embodiments, the underground portable transparent water level measuring meter of the utility model embodiment includes a water diversion pipe 3, the water inlet end of the water diversion pipe 3 is connected to the water inlet of the drainage pipe 1, and the water inlet end of the transparent hose 2 is inserted into the water outlet end of the water diversion pipe 3. The water diversion pipe 3 can be connected to the drainage pipe 1 by welding, so that the water diversion pipe 3 is convenient to connect with the drainage pipe 1. By providing the water diversion pipe 3, it is convenient for the transparent hose 2 to be connected to the water inlet, thereby facilitating the assembly of the transparent hose 2.

[0025] Alternatively, if Figure 2 As shown, the water diversion pipe 3 is arranged perpendicular to the drainage pipe 1, so as to facilitate welding of the water diversion pipe 3 and connection of the transparent short pipe to the water outlet end of the water diversion pipe 3.

[0026] In some embodiments, a binding belt 4 is provided on the outer circumference of the transparent hose 2, and the binding belt 4 is used to bind the transparent hose 2 to the water pipe 3. Figure 1 As shown, by setting a binding belt 4 to bind the transparent hose 2 to the water pipe 3, the connection stability between the transparent hose 2 and the water pipe 3 can be improved, and the risk of the transparent hose 2 falling off during use can be prevented, so as to improve the working reliability of the portable transparent water level meter for underground wells in the embodiment of the utility model.

[0027] In some embodiments, Figure 1 and Figure 2 As shown, the outer circumferential surface of the water pipe 3 is provided with an annular groove 301, and the binding position of the binding belt 4 corresponds to the annular groove 301. When the binding belt 4 is used to bind the transparent hose 2, the binding belt 4 is bound at the position of the annular groove 301, which prevents the binding belt 4 from sliding and falling off in the length direction of the water pipe 3 after binding, which is conducive to improving the binding reliability of the binding belt 4.

[0028] In some embodiments, a first stop valve 5 is provided at the water outlet of the transparent hose 2. Since the water pressure in the goaf is relatively high, by providing the first stop valve 5 at the water outlet of the transparent hose 2, the water in the goaf can be prevented from being discharged through the transparent hose 2, so that the liquid level in the transparent hose 2 can be observed.

[0029] In some embodiments, a pressure gauge 6 is provided on the drainage pipe 1, and the pressure gauge 6 is located upstream of the water diversion pipe 3. Figure 2 As shown, the portable underground transparent water level measuring meter of the embodiment of the utility model is provided with a pressure gauge 6, and the water level height in the goaf can be inferred by the pressure value of the pressure gauge 6, and compared with the water level height in the transparent hose 2 for reference to reduce the measurement error.

[0030] In some embodiments, a second stop valve 7 is provided at the water outlet of the drain pipe 1 to control the opening and closing of the drain pipe 1. When monitoring the water level in the goaf, the second stop valve 7 is closed to prevent water from flowing in the drain pipe 1 and affecting the water level in the transparent hose 2, which is beneficial to improving the measurement accuracy.

[0031] Optionally, the inner diameter of the transparent hose 2 is 6 mm-10 mm. For example, the inner diameter of the transparent hose 2 can be 6 mm, 7 mm, 8 mm, or 10 mm. If the inner diameter of the transparent hose 2 is set to be small, it is not convenient to observe the liquid level in the transparent hose 2. If the inner diameter of the transparent hose 2 is set to be large, the water in the transparent hose 2 is large, the weight is increased, and it is not convenient to move the transparent hose 2.

[0032] Optionally, the length of the transparent hose 2 is 2m-3m. For example, the length of the transparent hose 2 is 2m, 2.5m or 3m.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a 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. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0038] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A portable transparent water level measuring meter for underground wells, characterized in that: include: A drainage pipe (1), wherein the water inlet end of the drainage pipe (1) is used to extend into the bottom of the goaf, the water outlet end of the drainage pipe (1) is used to be placed in the well for drainage, and a water inlet is provided on the pipe wall of the drainage pipe (1); A transparent hose (2), wherein the water inlet end of the transparent hose (2) is connected to the water inlet of the drain pipe (1).

2. The portable transparent underground water level measuring meter according to claim 1, characterized in that: It comprises a water diversion pipe (3), the water inlet end of the water diversion pipe (3) is connected to the water inlet of the drainage pipe (1), and the water inlet end of the transparent hose (2) is inserted into the water outlet end of the water diversion pipe (3).

3. The portable transparent underground water level measuring meter according to claim 2, characterized in that: The water diversion pipe (3) is arranged perpendicular to the drainage pipe (1).

4. The portable transparent underground water level measuring meter according to claim 3, characterized in that: A binding belt (4) is provided on the outer peripheral surface of the transparent hose (2), and the binding belt (4) is used to bind the transparent hose (2) to the water diversion pipe (3).

5. The portable transparent underground water level measuring meter according to claim 4, characterized in that: An annular groove (301) is provided on the outer peripheral surface of the water diversion pipe (3), and the binding position of the binding belt (4) corresponds to the annular groove (301).

6. The portable transparent underground water level measuring meter according to claim 1, characterized in that: A first stop valve (5) is provided at the water outlet end of the transparent hose (2).

7. The portable transparent underground water level measuring meter according to claim 2, characterized in that: The drainage pipe (1) is provided with a pressure gauge (6), and the pressure gauge (6) is located upstream of the water diversion pipe (3).

8. The portable transparent underground water level measuring meter according to claim 7, characterized in that: A second stop valve (7) is provided at the water outlet end of the drainage pipe (1).

9. The portable transparent downhole water level measuring meter according to any one of claims 1 to 8, characterized in that: The inner diameter of the transparent hose (2) is 6 mm to 10 mm.

10. The portable transparent downhole water level measuring meter according to any one of claims 1 to 8, characterized in that: The length of the transparent hose (2) is 2m-3m.

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