Liquid level measuring device for reverse drainage tank of coal seam drainage and production well
By designing a counter-discharge tank level measuring device with components such as a support frame, guide base, and limiting cylinder, the problems of inconvenient setup and poor stability of existing devices are solved, achieving convenient installation and stable measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING DADI HI TECH GEOLOGICAL EXPLORATION CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-01
AI Technical Summary
Existing level measurement devices for reverse discharge tanks require specific setup and configuration for different reverse discharge tanks. They lack adjustable operation, and the connecting wires and lead blocks are susceptible to external forces, causing shaking and instability, which affects the accuracy of scale readings.
A measuring assembly is designed, comprising a first support, a support frame, a second support, a guide base, a limiting cylinder, an outer connecting frame, an upper positioning cover, a lower positioning cover, an upper guide frame, a lower guide frame, a lead block, and a float. The support frame and the guide base support the pulley, the outer connecting frame adjusts the positioning cover, and the limiting cylinder limits the float, thus achieving stable connection and guidance.
It achieves convenient installation and adaptation, ensures stable connection between the measuring components and the reverse discharge tank, and improves the stability of the lifting of the lead block and float, thereby enhancing the accuracy of scale reading and ease of operation.
Smart Images
Figure CN224189317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coalbed methane development, and in particular to a liquid level measuring device for a reverse discharge tank in a coalbed methane drainage well. Background Technology
[0002] When a coalbed methane well enters the drainage stage, the wellhead flowback fluid flows into the surface flowback tank through the surface process manifold. The production rate is a crucial parameter for data collection at the drainage site. Its magnitude can be used to analyze the operation of the drainage pump, assess formation seepage capacity, and serve as an important reference for adjusting the drainage system. Therefore, accurate production rate measurement is essential. On-site drainage technicians need to measure the production rate regularly every day, and more frequently in case of abnormal conditions.
[0003] Existing level measurement devices for reverse discharge tanks primarily rely on a float that moves with the liquid level, causing a pulley system to adjust the lead block inside an external level gauge. This allows for reading the scale, and the production volume can be quickly calculated using the volume formula (volume = bottom area × height). However, this method has several drawbacks:
[0004] In actual use, the aforementioned measuring device requires separate setup for different reverse discharge tanks and lacks adjustable operation, making it inconvenient to use. The connecting wires and the movable lead blocks are easily affected by external forces, resulting in shaking and instability, which in turn affects the user's subsequent scale readings.
[0005] Therefore, this utility model proposes a liquid level measuring device for the reverse discharge tank of a coal seam drainage well. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a liquid level measuring device for reverse discharge tanks in coal seam drainage wells, which solves the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a liquid level measuring device for a coal seam drainage well reverse discharge tank, wherein a measuring component is provided on one side of the reverse discharge tank, and the measuring component includes a first support, a support frame and a second support that are fixedly connected, and a guide base and a limiting cylinder are fixedly connected to the bottom end of the support frame;
[0008] The measuring assembly also includes an outer connecting frame, an upper positioning cover, and a lower positioning cover connected sequentially from top to bottom. An upper guide frame and a lower guide frame are fixedly connected to the outer sides of the upper and lower positioning covers, respectively. An adjustment groove is provided on the inner side of the outer connecting frame, and a support ring frame is embedded in the adjustment groove. A pulley is embedded in the inner side of the guide base. A lead block and a float are embedded in the inner side of the lower guide frame and the limiting cylinder, respectively. A connecting line is fixedly connected to the lead block and the float, and the connecting line is also connected to the pulley.
[0009] As a further technical solution of this utility model, the first support and the second support are respectively fixedly connected to the two ends of the support frame. The second support is distributed on both sides of one end of the support frame and is arranged in an arc shape. It is also located at the arc-shaped edge of the top of the reverse discharge tank.
[0010] As a further technical solution of this utility model, the support frame is horizontally arranged as a whole, and a slot is opened on the surface near the first support. Two sets of guide bases are horizontally arranged on both sides of the bottom surface, and a sliding groove is opened on the surface of the guide base laterally.
[0011] As a further technical solution of this utility model, two sets of pulleys are arranged adjacent to each other and are movably embedded inside the guide base. At the same time, the outer end of the pulley is provided with a protruding sliding block corresponding to the sliding groove on the surface of the guide base.
[0012] As a further technical solution of this utility model, the outer connecting frame is vertically arranged in an "L" shape, and its top end moves through the slot at one end of the support frame. The inner surface of the outer connecting frame is also provided with a guide groove. The upper positioning cover and the lower positioning cover are respectively set as a trapezoidal cover and a rectangular cover, and both of them are provided with threaded holes and sponge pads.
[0013] As a further technical solution of this utility model, both the upper guide frame and the lower guide frame are vertically set as rectangular frames, and vertical guide grooves are opened on both sides of the lower guide frame, and scale markings are opened on the inner side of the lower guide frame.
[0014] As a further technical solution of this utility model, the lead block surface is provided with a protruding sliding block on the guide groove corresponding to the two sides of the lower guide frame.
[0015] As a further technical solution of this utility model, the support ring frame is set horizontally as a semi-circular frame, which is located at the top edge of the reverse discharge tank 1. The outer end of the support ring frame is simultaneously slidably embedded in the guide groove on the inner surface of the outer connecting frame.
[0016] As a further technical solution of this utility model, the limiting cylinder is vertically arranged, with both its upper and lower ends being open. Its top end is fixedly connected to the bottom of the support frame through a set of connecting rods, and the surface of the limiting cylinder has a spiral-shaped open opening, allowing the float to be movably embedded in the limiting cylinder.
[0017] This invention provides a liquid level measuring device for reverse discharge tanks in coal seam drainage wells, which has the following advantages compared with the prior art:
[0018] 1. This design provides a liquid level measuring device for a coal seam drainage well's reverse discharge tank. The first and second supports facilitate overall support of the measuring components at the top of the reverse discharge tank. The support frame and bottom guide base provide support and limit for the pulleys, while also allowing for horizontal adjustment of the pulleys at the top of the reverse discharge tank. A slot at one end of the support frame facilitates horizontal sliding adjustment of the outer connecting frame. The pulleys also allow for the retraction and extension of the connecting line between the lead block and the float.
[0019] 2. This design provides a liquid level measuring device for a reverse discharge tank in a coal seam drainage well. The movable external connecting frame allows for simultaneous inward and outward movement and adjustment of the upper and lower positioning covers. These covers, in turn, conform to the outer surface of the reverse discharge tank, connecting and fixing the measuring assembly to the tank. The upper guide frame guides and limits the connection line between the lead block and the float, while the lower guide frame guides and limits the lead block.
[0020] 3. The liquid level measuring device for the reverse discharge tank in the coal seam drainage well designed in this paper achieves the effect of supporting the measuring component as a whole at the top of the reverse discharge tank 1 through the movable support ring frame.
[0021] 4. This design provides a liquid level measuring device for the reverse discharge tank in a coal seam drainage well, which uses a limiting cylinder to guide and limit the float. Attached Figure Description
[0022] Figure 1 This is a front view of a structure for a liquid level measuring device for a reverse discharge tank in a coal seam drainage well;
[0023] Figure 2 A front view of the connection of a measuring component for a liquid level measuring device used in a coal seam drainage well reverse discharge tank;
[0024] Figure 3 A device for measuring the liquid level in the reverse discharge tank of a coal seam drainage well. Figure 2 Enlarged view of the structure at point A in the middle.
[0025] In the diagram: 1. Reverse discharge tank; 2. Measuring component; 3. First support; 4. Support frame; 5. Second support; 6. Guide base; 7. External connecting frame; 8. Upper positioning cover; 9. Upper guide frame; 10. Lower positioning cover; 11. Lower guide frame; 12. Limiting cylinder; 13. Adjusting groove; 14. Support ring frame; 15. Pulley; 16. Lead block; 17. Float. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-3 This utility model provides a technical solution for a liquid level measuring device for a coal seam drainage well reverse discharge tank: it includes a reverse discharge tank 1, and a measuring component 2 is provided on one side of the reverse discharge tank 1. The measuring component 2 includes a first support 3, a support frame 4 and a second support 5 fixedly connected. The bottom end of the support frame 4 is fixedly connected to a guide base 6 and a limiting cylinder 12. The measuring component 2 also includes an outer connecting frame 7, an upper positioning cover 8 and a lower positioning cover 10 connected sequentially from top to bottom. The outer sides of the upper positioning cover 8 and the lower positioning cover 10 are respectively fixedly connected to an upper guide frame 9 and a lower guide frame 11. An adjustment groove 13 is opened on the inner side of the outer connecting frame 7. A support ring frame 14 is embedded in the adjustment groove 13. A pulley 15 is embedded in the inner side of the guide base 6. A lead block 16 and a float 17 are respectively embedded in the lower guide frame 11 and the limiting cylinder 12. The lead block 16 and the float 17 are fixedly connected to a connecting line, and the connecting line is also connected to the pulley 15.
[0028] like Figure 2 As shown, the first support 3 and the second support 5 are fixedly connected to both ends of the support frame 4. The second support 5 is distributed on both sides of one end of the support frame 4, and is arranged in an arc shape. It is also located at the arc-shaped edge of the top of the reverse discharge tank 1. The support frame 4 is horizontally arranged as a whole. A groove is opened on the surface of the support frame near the first support 3. Two sets of guide bases 6 are horizontally arranged on both sides of the bottom surface. A sliding groove is opened laterally on the surface of the guide base 6. Two sets of pulleys 15 are arranged adjacent to each other and are movably embedded in the inner side of the guide base 6. The outer end of the pulley 15 corresponds to the guide base. The sliding groove on the surface of the seat 6 is provided with a raised sliding block. The first support 3 and the second support 5 provide support for the measuring component 2 on the top of the reverse discharge tank 1. The support frame 4 and the bottom guide base 6 provide support and limit for the pulley 15. At the same time, the pulley 15 can be adjusted horizontally on the top of the reverse discharge tank 1. The slot at one end of the support frame 4 allows the outer connecting frame 7 to slide horizontally along it. The pulley 15 is used to retract and extend the connecting line between the lead block 16 and the float 17.
[0029] When the measuring component 2 is installed, the first support 3 and the second support 5 are supported at the top edge of the reverse discharge tank 1, and the pulley 15 is located directly above the reverse discharge tank 1. By rotating the pulley 15, the connection between the lead block 16 and the float 17 can be retracted and extended. At the same time, the user can make the pulley 15 move horizontally along the groove on the surface of the guide base 6. By changing the distance between the two sets of pulleys 15, the position of the float 17 in the reverse discharge tank 1 can be adjusted to facilitate subsequent operation by the user. Afterwards, the user can make the top of the outer connecting frame 7 slide horizontally along the slot on one end of the support frame 4 to make the outer connecting frame 7 fit the outer surface of the reverse discharge tank 1, so as to form a connection with the outer surface of the reverse discharge tank 1.
[0030] like Figure 2-3 As shown, the outer connecting frame 7 is vertically arranged in an "L" shape, with its top end movably passing through a slot at one end of the support frame 4. A guide groove is also provided on the inner surface of the outer connecting frame 7. The upper positioning cover 8 and the lower positioning cover 10 are respectively set as a trapezoidal cover and a rectangular cover, both with threaded holes and sponge pads on their surfaces. The upper guide frame 9 and the lower guide frame 11 are both vertically set as rectangular frames. Vertical guide grooves are provided on both sides of the lower guide frame 11, and scale markings are provided on the inner surface of the lower guide frame 11. The movable outer connecting frame 7 achieves the effect of simultaneously moving and adjusting the upper positioning cover 8 and the lower positioning cover 10 inwards and outwards. The upper positioning cover 8 and the lower positioning cover 10 achieve the effect of fitting against the outer surface of the reverse discharge tank 1 from the outside, connecting and fixing the measuring component 2 and the reverse discharge tank 1 as a whole. The upper guide frame 9 achieves the effect of guiding and limiting the connection line between the lead block 16 and the float 17, and the lower guide frame 11 achieves the effect of guiding and limiting the lead block 16.
[0031] The lead block 16 has raised sliding blocks on the guide grooves on both sides of the lower guide frame 11. When the measuring component 2 and the reverse discharge tank 1 are connected and installed, the outer connecting frame 7 is slidably adjusted so that the upper positioning cover 8 and the lower positioning cover 10 connected at the bottom move to fit against the outer surface of the reverse discharge tank 1. Then, it is connected and fixed to the surface of the reverse discharge tank 1 by external screws. After the float 17 and the lead block 16 are connected by the connecting line, the lead block 16 and the connecting line are located in the lower guide frame 11 and the upper guide frame 9, respectively. During the measurement process, the float 17 is affected by the liquid level and drives the lead block 16 to slide up and down along the guide groove on the surface of the lower guide frame 11. The measurement is then achieved in conjunction with the scale markings. The lower guide frame 11 and the upper guide frame 9 can ensure the stability of the rise and fall of the lead block 16 and the connecting line, which is beneficial for subsequent visual scale measurement.
[0032] The support ring frame 14 is set horizontally as a semi-circular frame, and is located at the top edge of the reverse discharge tank 1. The outer end of the support ring frame 14 is slidably embedded in the guide groove on the inner surface of the outer connecting frame 7. Through the movable support ring frame 14, the measuring component 2 is supported as a whole at the top of the reverse discharge tank 1.
[0033] The limiting cylinder 12 is vertically set with open ends. Its top end is fixedly connected to the bottom of the support frame 4 by a set of connecting rods. The surface of the limiting cylinder 12 has a spiral opening. The float 17 is movably embedded in the limiting cylinder 12. The limiting cylinder 12 achieves the effect of limiting and guiding the float 17.
[0034] The working principle of this utility model is as follows: When using this device, it can be quickly adapted and installed according to different reverse discharge tanks 1. During the installation process, the two sets of supports and support frame 4 and support ring frame 14 at the top position complete the support of the measuring component 2 at the top position of the reverse discharge tank 1. The positioning cover at the measuring position realizes the connection and fixation between the measuring component 2 and the outside of the reverse discharge tank 1. During the measurement process, the upper and lower guide frames and the limiting cylinder 12 realize the limiting and guiding of the lead block 16 and the float 17 to ensure the measurement stability.
[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A liquid level measuring device for a reverse discharge tank in a coal seam drainage well, comprising a reverse discharge tank (1), characterized in that: A measuring component (2) is provided on one side of the reverse discharge tank (1). The measuring component (2) includes a first support (3), a support frame (4), and a second support (5) that are fixedly connected. The bottom end of the support frame (4) is fixedly connected to a guide base (6) and a limiting cylinder (12). The measuring component (2) also includes an outer connecting frame (7), an upper positioning cover (8) and a lower positioning cover (10) connected sequentially from top to bottom. An upper guide frame (9) and a lower guide frame (11) are fixedly connected to the outer sides of the upper positioning cover (8) and the lower positioning cover (10), respectively. An adjustment groove (13) is opened on the inner side of the outer connecting frame (7). A support ring frame (14) is embedded in the adjustment groove (13). A pulley (15) is embedded in the inner side of the guide base (6). A lead block (16) and a float (17) are embedded in the inner side of the lower guide frame (11) and the limiting cylinder (12), respectively. A connecting line is fixedly connected to the lead block (16) and the float (17). The connecting line is also connected to the pulley (15).
2. The liquid level measuring device for a reverse discharge tank in a coal seam drainage well according to claim 1, characterized in that: The first support (3) and the second support (5) are fixedly connected to the two ends of the support frame (4). The second support (5) is distributed on both sides of one end of the support frame (4) and is arranged in an arc shape. It is also located at the arc-shaped edge of the top of the reverse discharge tank (1).
3. The liquid level measuring device for a reverse discharge tank in a coal seam drainage well according to claim 1, characterized in that: The support frame (4) is horizontally arranged as a whole, and a slot is opened on its surface near the first support (3). Two sets of guide bases (6) are horizontally arranged on both sides of its bottom surface, and a sliding groove is opened on the surface of the guide base (6).
4. The liquid level measuring device for a reverse discharge tank in a coal seam drainage well according to claim 1, characterized in that: Two sets of pulleys (15) are arranged adjacent to each other and are movably embedded inside the guide base (6). At the same time, the outer end of the pulley (15) is provided with a protruding sliding block corresponding to the sliding groove on the surface of the guide base (6).
5. The liquid level measuring device for a reverse discharge tank in a coal seam drainage well according to claim 1, characterized in that: The outer connecting frame (7) is vertically arranged in an "L" shape, and its top end moves through the slot at one end of the support frame (4). The inner surface of the outer connecting frame (7) is also provided with a guide groove. The upper positioning cover (8) and the lower positioning cover (10) are respectively set as trapezoidal cover and rectangular cover, and both of them are provided with threaded holes and sponge pads.
6. The liquid level measuring device for a reverse discharge tank in a coal seam drainage well according to claim 1, characterized in that: The upper guide frame (9) and the lower guide frame (11) are both vertically set as rectangular frames. Vertical guide grooves are provided on both sides of the lower guide frame (11), and scale markings are provided on the inner side of the lower guide frame (11).
7. The liquid level measuring device for a reverse discharge tank in a coal seam drainage well according to claim 1, characterized in that: The lead block (16) has raised sliding blocks on the guide grooves on both sides of the lower guide frame (11).
8. A liquid level measuring device for a reverse discharge tank in a coal seam drainage well according to claim 1, characterized in that: The support ring frame (14) is set horizontally as a whole. It is set as a semi-circular frame and is located at the top edge of the reverse discharge tank (1). The outer end of the support ring frame (14) is simultaneously slidably embedded in the guide groove on the inner surface of the outer connecting frame (7).
9. A liquid level measuring device for a reverse discharge tank in a coal seam drainage well according to claim 1, characterized in that: The limiting cylinder (12) is vertically arranged, with both its upper and lower ends being open. Its top end is fixedly connected to the bottom of the support frame (4) via a set of connecting rods. The surface of the limiting cylinder (12) has a spiral-shaped open opening, and the float (17) is movably embedded in the limiting cylinder (12).