Flow meter with three-way connector

Abstract

The utility model provides a flow meter with a three-way connector. The flow meter comprises a flow meter body and the three-way connector. One end of the three-way connector is connected with the flowmeter, and the filter element and the filter screen are sequentially fixed in the end, connected with the flowmeter, of the three-way connector from top to bottom. In the extraction metering process of the flow meter, coal cinder and water are filtered out through the filter element and the filter screen of the three-way connector, precise instruments and meters are well protected, the problem that the flow meter is damaged due to coal cinder blockage is solved, the error influence of drilling water on metering is reduced, the manual inspection frequency and the maintenance workload are reduced, and the working efficiency is improved. And the filter screen and the filter element are quickly disassembled and assembled, so that the filter screen and the filter element are convenient to clean and are repeatedly used, and the material cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a flow meter with a three-way joint. Background Art

[0002] Mines require statistical measurement of extracted coal seam gas volumes during drill hole extraction radius surveys and coal seam gas extraction. Different types of drill holes with different reservoir conditions present varying negative extraction pressures, flow rates, coal seam hardness, and moisture content. High-precision metering is required to continuously or intermittently measure gas flow in pipelines during coal seam gas extraction and metering.

[0003] Existing coal seam extraction drill holes have a deep effective length within the coal mass, are prone to deformation and collapse, and some coal seams have high moisture content, resulting in water accumulation in the holes. These drill holes contain a large amount of coal slag, which is difficult to remove. Flowmeters used for extraction measurement often become clogged, and even at high flow rates, coal slag can penetrate conventional filters, causing the flowmeter to become stuck and malfunction. Furthermore, factors such as borehole water caused by temperature differences can affect the accuracy of extraction measurement. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to solve the problem of flow meter damage or distortion caused by cinder blockage and drilling water.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] The utility model provides a flow meter with a three-way joint, comprising a flow meter and a three-way joint; one end of the three-way joint is connected to the flow meter, and a filter element and a filter screen are fixed in sequence from top to bottom inside the one end of the three-way joint connected to the flow meter.

[0007] Beneficial effects: During the extraction and metering process, the flow meter of the utility model filters out coal slag and moisture through the filter element and filter screen of the three-way joint, which effectively protects precision instruments and meters, solves the damage to the flow meter caused by coal slag blockage, reduces the error influence of drilling water on measurement, reduces the frequency of manual inspections and maintenance workload, and the filter screen and filter element are quick to disassemble and install, making the filter screen and filter element easy to clean and reuse to save material costs.

[0008] Preferably, the filter screen includes a primary coarse filter screen and a secondary fine filter screen, and the secondary fine filter screen and the primary coarse filter screen are fixed in sequence from top to bottom inside one end of the three-way joint.

[0009] Preferably, the mesh size of the first-level coarse filter is not less than 3 mm.

[0010] Preferably, the mesh size of the secondary fine filter is less than 1 mm.

[0011] Beneficial effect: The utility model filters out larger coal slag particles through the first-level coarse filter screen, and further filters out fine coal slag particles through the second-level fine filter screen.

[0012] Preferably, the filter element is filter cotton.

[0013] Beneficial effects: The utility model uses filter cotton to absorb and filter drill hole moisture and powdered coal, and finally only allows gas to contact the flow meter through the three-way joint, thereby well protecting the flow meter.

[0014] Preferably, the other two ends of the three-way joint are connected to the water collection and slag discharge device and the drilled hole respectively.

[0015] Preferably, the shape of the three-way joint is R-shaped, and the flow meter and the water collection and slag discharge device are connected to the upper and lower ends of the three-way joint respectively, and the water collection and slag discharge device is arranged directly below the flow meter.

[0016] Preferably, the other two ends of the three-way joint are connected to the water collection and slag discharge device and the drill hole respectively through hoses.

[0017] Preferably, the flow meter is provided with a display screen.

[0018] Beneficial effect: The flow meter of the utility model can monitor the amount of coal seam gas in real time through the display screen.

[0019] Preferably, the flow meter is connected to the extraction pipeline through a hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a flow meter with a three-way connector provided in this embodiment during operation. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions 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 devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention; it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1

[0024] This embodiment provides a flow meter with a three-way connector, including a three-way connector 10 and a flow meter 20. The three-way connector 10 is in an R-shaped shape. Figure 1 As shown, the R-type specifically connects the upper and lower joints in a straight line, with a fork joint extending from the middle of the upper and lower joints. The flowmeter 20 is connected to the upper end joint of the tee joint 10. The interior of the upper end joint is fixed with a filter cotton 11, a secondary fine filter screen 12, and a primary coarse filter screen 13 from top to bottom. The purpose is to filter out coal slag particles, moisture, and powdered coal dust in the borehole 50 to prevent them from entering and clogging the flowmeter 20 or causing measurement distortion. The filter cotton 11, the secondary fine filter screen 12, and the primary coarse filter screen 13 are detachably fixed to the interior of the upper end joint to facilitate disassembly and cleaning of the filter cotton 11, the secondary fine filter screen 12, and the primary coarse filter screen 13, allowing for reuse and saving material costs.

[0025] according to Figure 1 As shown, the lower end joint and the fork joint of the three-way joint 20 are respectively connected to the water collection and slag discharge device 40 and the borehole 50 through a hose 30. The water collection and slag discharge device 40 can be an automatic water collection and slag discharge device. The coal slag in the borehole 50 flows into the water collection and slag discharge device 40 from the fork joint due to its own weight. Since the density of the gas is smaller than that of the air, it flows upward into the flow meter 20 for extraction and measurement.

[0026] A display screen 21 is provided on the surface of the flow meter 20 , and the display screen 21 can display the gas flow in real time. The other end of the flow meter 20 is connected to the extraction pipeline 60 through a hose 30 .

[0027] The utility model adopts an "R"-shaped three-way connector 10 and a three-stage filtration method. During the process of using the flow meter 20 for extraction and metering, the flow meter 20 can be well protected, the damage to the flow meter 20 caused by coal slag can be solved, the error influence of drilling water on the metering can be reduced, and the frequency of manual inspections and maintenance workload can be reduced. The filter screen and filter element can be quickly disassembled and installed, and are easy to clean and can be reused, saving material costs.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flow meter with a three-way connector, characterized in that: It includes a flow meter and a three-way joint; one end of the three-way joint is connected to the flow meter, and the filter element and filter screen are fixed in sequence from top to bottom inside the one end of the three-way joint connected to the flow meter; the other two ends of the three-way joint are respectively connected to the water collection and slag discharge device and the drilled hole; the shape of the three-way joint is R-shaped, and the flow meter and the water collection and slag discharge device are respectively connected at the upper and lower ends of the three-way joint, and the water collection and slag discharge device is arranged below the flow meter.

2. The flow meter with a three-way connector according to claim 1, characterized in that: The filter screen includes a primary coarse filter screen and a secondary fine filter screen, and the secondary fine filter screen and the primary coarse filter screen are fixed in sequence from top to bottom inside one end of the three-way joint.

3. The flow meter with a three-way connector according to claim 2, characterized in that: The mesh size of the first-level coarse filter is not less than 3 mm.

4. The flow meter with a three-way connector according to claim 2, characterized in that: The mesh size of the secondary fine filter is less than 1 mm.

5. The flow meter with a three-way connector according to claim 1, characterized in that: The filter element is filter cotton.

6. The flow meter with a three-way connector according to claim 1, characterized in that: The other two ends of the three-way joint are respectively connected to the water collecting and slag discharging device and the drill hole through hoses.

7. The flow meter with a three-way connector according to claim 1, characterized in that: The flow meter is provided with a display screen.

8. The flow meter with a three-way connector according to claim 1, characterized in that: The flow meter is connected to the extraction pipeline through a hose.

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