Shale gas volume metering device

Abstract

The invention discloses a shale gas volume metering device in the technical field of shale gas metering, which comprises a metering pipe, a gas inlet is arranged at the bottom of the metering pipe, a gas outlet is arranged at the top of the metering pipe, a floating column is arranged at the lower part in the metering pipe, a vertical rod is arranged at the top of the floating column, and a pointer is arranged at the top of the vertical rod. A U-shaped shell is arranged on the upper portion of the right side of the metering tube, a rotating shaft is arranged in the U-shaped shell, a fixing rod is arranged on the rotating shaft, a first spring is arranged at the bottom of the fixing rod, a limiting plate is arranged at the bottom of the first spring, a clamping rod is arranged on the upper portion of the rotating shaft, a floating column drives a pointer to move upwards through a vertical rod, and the metering tube is made of transparent materials. And scales are arranged on the side wall of the metering pipe, the flow velocity of the shale gas is measured through the scales pointed by the pointer, and subsequent shale gas exploitation equipment with different exploitation speeds is accurately installed.

Description

Technical Field

[0001] The invention relates to the technical field of shale gas metering, and in particular to a shale gas volume metering device. Background Art

[0002] Shale gas is a natural gas resource contained in shale layers. my country has a large amount of shale gas reserves available for exploitation. Before shale gas exploitation, it is necessary to conduct drilling exploration on the rock layer to explore the shale gas reserves. After drilling the shale layer, shale gas will be ejected from the holes. It is necessary to conduct preliminary measurements of the shale gas and measure the flow rate of the shale gas. Accurately measuring the flow rate of the shale gas will facilitate the subsequent exploitation of the shale gas. According to the measured data, shale gas exploitation equipment with different exploitation amounts can be installed, which will not cause waste due to the installation of too large exploitation equipment, but also ensure the exploitation of shale gas.

[0003] To this end, we propose a shale gas volume metering device. Summary of the invention

[0004] The purpose of the present invention is to provide a shale gas volume metering device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shale gas volume metering device, comprising a metering tube, an air inlet is arranged at the bottom of the metering tube, an air outlet is arranged at the top of the metering tube, a floating column is arranged at the lower part of the metering tube, a vertical pole is arranged at the top of the floating column, a pointer is arranged at the top of the vertical pole, a U-shaped shell is arranged at the upper right part of the metering tube, a rotating shaft is arranged in the U-shaped shell, a fixing rod is arranged on the rotating shaft, a first spring is arranged at the bottom of the fixing rod, a limiting plate is arranged at the bottom of the first spring, a clamping rod is arranged at the upper part of the rotating shaft, a positioning block is arranged at the top of the U-shaped shell, a through hole is arranged in the middle of the positioning block, a clamping rod is arranged in the through hole, a limiting groove is arranged on the inner wall of the through hole, a push plate is arranged in the limiting groove, and a second spring is arranged on the right side of the push plate.

[0006] Furthermore, an arc-shaped mounting opening is arranged on the side wall of the floating column, and a ball is arranged in the arc-shaped mounting opening.

[0007] Furthermore, the arc-shaped mounting openings and the balls are provided in three groups, and the three groups of arc-shaped mounting openings and the balls are evenly distributed on the side wall of the floating column.

[0008] Furthermore, the fixing rod is cross-shaped, and first springs are arranged below the four ends of the fixing rod, and the elastic forces of the first springs below the ends of the fixing rod are different.

[0009] Furthermore, the top end of the rotating shaft passes through the U-shaped housing, and a shaft seal is provided between the rotating shaft and the U-shaped housing.

[0010] Furthermore, the bottom end of the rotating shaft is connected to the U-shaped housing via a bearing.

[0011] Furthermore, the positioning plate is fixedly mounted on the rotating shaft, and the positioning plate is located at the upper part of the U-shaped shell.

[0012] Furthermore, the clamping rod cooperates with the clamping port, and a handle is provided at the right end of the clamping rod.

[0013] Furthermore, the push plate is fixedly connected to the clamping rod, the push plate is slidably connected to the inner wall of the limiting groove, and the second spring is sleeved on the clamping rod.

[0014] Furthermore, a scale is arranged on the side wall of the metering tube, and the metering tube is made of transparent material.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The shale gas will blow up the floating column, which will drive the pointer to move upward through the vertical rod. The metering tube is made of transparent material, and there are scales on the side wall of the metering tube. The flow rate of shale gas is measured by the scale pointed by the pointer, so that the subsequent shale gas mining equipment with different mining speeds can be accurately installed.

[0016] 2. If the shale gas flow rate is too fast, the pointer will lift the limit plate and compress the first spring. The pointer points to the scale and the accurate flow rate of the shale gas needs to be calculated in combination with the ratio set by the device. By pulling the card rod to the right, the card rod will disengage from the card slot to release the fixation on the positioning plate, and the rotating shaft will be rotated to drive the fixed rod to rotate. The bottom of the fixed rod is provided with a first spring with different elastic force. The first spring with different elastic force will measure a wider range of shale gas flow rate, thereby increasing the use range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the floating column structure of the present invention; Figure 3 It is a cross-sectional view of the floating column of the present invention; Figure 4 This is a schematic diagram of the positioning block structure of the present invention; Figure 5 It is a schematic diagram of the fixing rod structure of the present invention.

[0018] In the figure: 1. metering tube; 2. air inlet; 3. air outlet; 4. floating column; 5. vertical pole; 6. pointer; 7. U-shaped shell; 8. rotating shaft; 9. fixing rod; 10. first spring; 11. limiting plate; 12. positioning block; 13. arc-shaped mounting opening; 14. ball bearing; 15. positioning plate; 16. bayonet; 17. through hole; 18. limiting groove; 19. clamping rod; 20. push plate; 21. second spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5 The present invention provides a technical solution: a shale gas volume metering device, comprising a metering tube 1, an air inlet 2 is arranged at the bottom of the metering tube 1, an air outlet 3 is arranged at the top of the metering tube 1, a floating column 4 is arranged at the lower part of the metering tube 1, a vertical rod 5 is arranged at the top of the floating column 4, a pointer 6 is arranged at the top of the vertical rod 5, a U-shaped shell 7 is arranged at the upper right part of the metering tube 1, a rotating shaft 8 is arranged in the U-shaped shell 7, a fixing rod 9 is arranged on the rotating shaft 8, a first spring 10 is arranged at the bottom of the fixing rod 9, a limiting plate 11 is arranged at the bottom of the first spring 10, a clamping rod 19 is arranged at the upper part of the rotating shaft 8, a positioning block 12 is arranged at the top of the U-shaped shell 7, a through hole 17 is arranged in the middle of the positioning block 12, a clamping rod 19 is arranged in the through hole 17, a limiting groove 18 is arranged on the inner wall of the through hole 17, a push plate 20 is arranged in the limiting groove 18, and a second spring 21 is arranged on the right side of the push plate 20. Shale gas is ejected after drilling a hole in the rock formation, and the shale gas ejected through the drilling hole is connected to the gas pump through a pipeline. There is an air inlet 2 at the bottom of the metering tube 1. After the shale gas is ejected, it enters the metering tube 1 through the air inlet 2. The shale gas ejection will blow up the floating column 4, and the floating column 4 drives the pointer 6 to move upward through the vertical rod 5. The metering tube 1 is made of transparent material, and a scale is set on the side wall of the metering tube 1. The flow rate of shale gas is measured by the scale pointed by the pointer 6, and the subsequent shale gas mining equipment with different mining speeds is accurately installed. If the shale gas flow rate is too fast, the pointer 6 lifts the limit plate 11, and when the first spring 10 is compressed, the pointer 6 points to the scale. The accurate flow rate of shale gas needs to be calculated in combination with the ratio set by the device, and by pulling the clamping rod 19 to the right, the clamping rod 19 is disengaged from the clamping port 16 to release the fixation of the positioning plate 15, and the rotating shaft 8 is rotated. The rotating shaft 8 drives the fixed rod 9 to rotate. The bottom of the fixed rod 9 is provided with a first spring 10 with different elastic forces. The first spring 10 with different elastic forces will measure a larger range of shale gas flow rates, thereby increasing the scope of use of the device.

[0021] Reference embodiment: An arc-shaped mounting opening 13 is provided on the side wall of the float 4, and a ball 14 is provided in the arc-shaped mounting opening 13. Three groups of arc-shaped mounting openings 13 and ball 14 are provided. The three groups of arc-shaped mounting openings 13 and ball 14 are evenly distributed on the side wall of the float 4, so as to reduce the friction between the float 4 and the inner wall of the metering tube 1, make the float 4 easier to move in the metering tube 1, and make the measured shale gas flow rate more accurate. The setting of the ball 14 leaves a gap between the float 4 and the inner wall of the metering tube 1 for the passage of shale gas.

[0022] Reference embodiment: the fixed rod 9 is cross-shaped, and a first spring 10 is arranged under the four ends of the fixed rod 9. The elastic forces of the first springs 10 under the ends of the fixed rod 9 are different. When the fixed rod 9 rotates on the rotating shaft 8, the first springs 9 with different elastic forces arranged on the fixed rod 9 move to the top of the pointer 6, so that the force with which the floating column 4 lifts up the first spring 10 will be different, thereby enabling the device to measure the flow rate of shale gas over a large range.

[0023] Reference embodiment: The top end of the rotating shaft 8 passes through the U-shaped shell 7, and a shaft seal is provided between the rotating shaft 8 and the U-shaped shell 7 to seal the rotating shaft 8 and the U-shaped shell 7 to prevent shale gas leakage, and the bottom end of the rotating shaft 8 is connected to the U-shaped shell 7 through a bearing.

[0024] Reference embodiment: The positioning plate 15 is fixedly mounted on the rotating shaft 8, the positioning plate 15 is located at the upper part of the U-shaped housing 7, the clamping rod 19 cooperates with the clamping slot 16, a handle is provided at the right end of the clamping rod 19, the push plate 20 is fixedly connected with the clamping rod 19, and the push plate 20 is slidably connected with the inner wall of the limiting groove 18. The second spring 21 is sleeved on the clamping rod 19, and the clamping rod 19 is pulled to the right by the handle, and the clamping rod 19 is disengaged from the clamping slot 16 to release the fixation of the positioning plate 15, so that the rotating shaft 8 rotates. After the dynamic fixing rod 9 rotates the rotating shaft 8 to the specified position, the handle is released, and the spring drives the clamping rod 19 to move and clamp the clamping slot 16 set on the positioning plate 15 by pushing the push plate 20 to fix the rotating shaft 8.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shale gas volume metering device, comprising a metering tube (1), characterized in that: The bottom of the metering tube (1) is provided with an air inlet (2), the top of the metering tube (1) is provided with an air outlet (3), a floating column (4) is provided at the lower part of the metering tube (1), a vertical rod (5) is provided at the top of the floating column (4), a pointer (6) is provided at the top of the vertical rod (5), a U-shaped shell (7) is provided at the upper right part of the metering tube (1), a rotating shaft (8) is provided in the U-shaped shell (7), a fixing rod (9) is provided on the fixing rod (8), and a first spring is provided at the bottom of the fixing rod (9). (10), a limiting plate (11) is arranged at the bottom of the first spring (10), a clamping rod (19) is arranged at the top of the rotating shaft (8), a positioning block (12) is arranged at the top of the U-shaped housing (7), a through hole (17) is arranged in the middle of the positioning block (12), a clamping rod (19) is arranged in the through hole (17), a limiting groove (18) is arranged on the inner wall of the through hole (17), a push plate (20) is arranged in the limiting groove (18), and a second spring (21) is arranged on the right side of the push plate (20).

2. A shale gas volume metering device according to claim 1, characterized in that: An arc-shaped installation opening (13) is provided on the side wall of the floating column (4), and a ball (14) is provided in the arc-shaped installation opening (13).

3. A shale gas volume metering device according to claim 2, characterized in that: The arc-shaped installation openings (13) and the balls (14) are each provided in three groups, and the three groups of arc-shaped installation openings (13) and balls (14) are evenly distributed on the side wall of the floating column (4).

4. A shale gas volume metering device according to claim 1, characterized in that: The fixing rod (9) is cross-shaped, and first springs (10) are arranged below the four ends of the fixing rod (9), and the elastic forces of the first springs (10) below the ends of the fixing rod (9) are different.

5. A shale gas volume metering device according to claim 1, characterized in that: The top end of the rotating shaft (8) passes through the U-shaped housing (7), and a shaft seal is provided between the rotating shaft (8) and the U-shaped housing (7).

6. A shale gas volume metering device according to claim 1, characterized in that: The bottom end of the rotating shaft (8) is connected to the U-shaped housing (7) via a bearing.

7. A shale gas volume metering device according to claim 1, characterized in that: The positioning plate (15) is fixedly mounted on the rotating shaft (8), and the positioning plate (15) is located at the upper part of the U-shaped housing (7).

8. A shale gas volume metering device according to claim 1, characterized in that: The clamping rod (19) matches the clamping port (16), and a handle is provided at the right end of the clamping rod (19).

9. A shale gas volume metering device according to claim 1, characterized in that: The push plate (20) is fixedly connected to the clamping rod (19), the push plate (20) is slidably connected to the inner wall of the limiting groove (18), and the second spring (21) is sleeved on the clamping rod (19).

10. A shale gas volume metering device according to claim 1, characterized in that: The side wall of the metering tube (1) is provided with scales, and the metering tube (1) is made of transparent material.

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