Oxygen flow control device in a pipeline

Abstract

The utility model discloses pipeline oxygen flow control device, including pipeline, the surface of pipeline is installed with first vortex flowmeter, and the left and right sides of first vortex flowmeter are provided with first regulating valve connected with pipeline respectively, the below of first vortex flowmeter is provided with branch pipe intercommunication with pipeline, and the both ends of branch pipe are installed with stop valve respectively, in the utility model, install first vortex flowmeter on the surface of pipeline, and two first regulating valves are installed symmetrically to first vortex flowmeter, and install on the branch pipe of pipeline, stop valve, second regulating valve, second vortex flowmeter, open first regulating valve, make oxygen to pass through pipeline with stable flow, and the actual flow value of oxygen is detected through first vortex flowmeter and is shown by the display panel of having, is easy to obtain oxygen flow data while satisfying flow regulation, and the control of oxygen flow in pipeline is convenient.

Description

Technical Field

[0001] This utility model relates to the field of hazardous chemical production, and in particular to an oxygen flow control device in a pipeline. Background Technology

[0002] Currently, flow control devices are needed in the oxygen production process to control the flow rate and opening / closing of oxygen, in order to maintain pipeline pressure balance and increase oxygen delivery efficiency.

[0003] Existing patent document CN112527022A discloses an integrated device for controlling oxygen flow, applicable to a control system for gas delivery and supply airflow in the field of respiratory therapy. It includes at least: a metal block connected to one end of an inlet quick-connect connector, one end of an outlet quick-connect connector, one end of a pressure sensor quick-connect connector, one end of a solenoid valve block, one end of a proportional valve block, and one end of a single-pass nylon stud. The portion of the inlet quick-connect connector extending into the metal block is connected to the inlet end of the proportional valve block extending into the metal block; the outlet end of the proportional valve block extending into the metal block is connected to the inlet end of the solenoid valve block extending into the metal block. This invention has a simple structure, is easy to use, and has high commercial value.

[0004] However, this method cannot obtain oxygen flow data when adjusting oxygen flow, thus making it impossible to accurately control oxygen flow. This results in fluctuating oxygen pressure in the pipeline, affecting oxygen delivery efficiency.

[0005] To address this issue, an oxygen flow control device for pipelines is proposed, which offers advantages such as flow regulation and ease of maintenance, thereby resolving the problems mentioned in the background technology. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oxygen flow control device for pipelines.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an oxygen flow control device in a pipeline, comprising a pipeline, a first vortex flow meter installed on the surface of the pipeline, and a first regulating valve connected to the pipeline respectively provided on the left and right sides of the first vortex flow meter, a branch pipe connected to the pipeline is provided below the first vortex flow meter, and a shut-off valve is installed at both ends of the branch pipe respectively, and a second regulating valve and a second vortex flow meter are installed sequentially from left to right on the surface of the branch pipe, a vortex generator is installed inside the first vortex flow meter and the second vortex flow meter respectively, and a detection element is installed inside the first vortex flow meter and the second vortex flow meter corresponding to the vortex generator.

[0008] As a further description of the above technical solution: buffer seats are respectively fitted on the surfaces of both ends of the pipe, and the surfaces of the buffer seats are provided with connection holes corresponding to the pipe. Several polyurethane buffers are installed around the connection holes, and one end of each polyurethane buffer is fixed with a rubber block that is in contact with the outer wall of the pipe.

[0009] As a further description of the above technical solution: the branch pipe has an overall U-shaped structure, and the length of the branch pipe is greater than the distance between the two first regulating valves on the pipeline.

[0010] As a further description of the above technical solution: both ends of the first vortex flow meter and the second vortex flow meter are provided with flanges, and the dimensions of the first vortex flow meter and the second vortex flow meter are respectively matched with the pipe diameter of the main pipe and the branch pipe.

[0011] As a further description of the above technical solution: multiple buffer seats are provided along the length of the pipe, and each buffer seat has a mounting base plate fixed to its bottom.

[0012] As a further description of the above technical solution: the end of the rubber block away from the polyurethane buffer is provided with an arc surface, and the arc surface is bonded to the outer wall of the pipe by sealant.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, a first vortex flow meter is installed on the surface of the pipeline, and two first regulating valves are symmetrically installed corresponding to the first vortex flow meter. A shut-off valve, a second regulating valve, and a second vortex flow meter are installed on the branch pipe of the pipeline. By opening the first regulating valve, oxygen is forced to pass through the pipeline at a stable flow rate. The actual oxygen flow rate is detected by the first vortex flow meter and displayed on the built-in display panel. This satisfies the flow rate regulation while making it easy to obtain oxygen flow data, which facilitates the control of oxygen flow in the pipeline. By closing the two first regulating valves of the pipeline and then opening the shut-off valves at both ends of the branch pipe, the second regulating valve and the second vortex flow meter of the branch pipe replace the first regulating valve and the first vortex flow meter to control the oxygen flow, which facilitates the replacement and maintenance of the first vortex flow meter.

[0015] In this invention, a set of buffer seats is set on the surface of the pipe in pairs around the first vortex flow meter. Since multiple sets of polyurethane buffers and rubber blocks are arranged around the connection hole of the buffer seat, and the rubber block on each polyurethane buffer is in contact with the outer wall of the pipe, when the pipe vibrates, the multiple sets of polyurethane buffers and rubber blocks in the connection hole can buffer and absorb the vibration, so that the vibration amplitude transmitted to the first vortex flow meter and the second vortex flow meter is minimized, reducing the interference of vibration on the first vortex flow meter and the second vortex flow meter, thereby improving the accuracy of oxygen flow detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the oxygen flow control device in the pipeline of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the pipeline;

[0018] Figure 3 This is a schematic diagram of the buffer seat.

[0019] Legend:

[0020] 1. Pipeline; 2. First vortex flow meter; 3. First regulating valve; 4. Buffer seat; 5. Branch pipe; 6. Shut-off valve; 7. Second regulating valve; 8. Second vortex flow meter; 9. Vortex generator; 10. Detection element; 11. Connection hole; 12. Polyurethane buffer; 13. Rubber abutment; 14. Mounting base plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] According to an embodiment of the present invention, an oxygen flow control device for pipelines is provided.

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3As shown, the oxygen flow control device in the pipeline according to an embodiment of the present invention includes a pipeline 1. A first vortex flow meter 2 is installed on the surface of the pipeline 1, and a first regulating valve 3 connected to the pipeline 1 is respectively provided on the left and right sides of the first vortex flow meter 2. A branch pipe 5 connected to the pipeline 1 is provided below the first vortex flow meter 2, and a shut-off valve 6 is respectively installed at both ends of the branch pipe 5. A second regulating valve 7 and a second vortex flow meter 8 are installed sequentially from left to right on the surface of the branch pipe 5. A vortex generator 9 is respectively installed inside the first vortex flow meter 2 and the second vortex flow meter 8. 2. A detection element 10 is installed in the vortex generator 9 corresponding to the vortex generator 9 in the second vortex flow meter 8. The principle of the first vortex flow meter 2 and the second vortex flow meter 8 is a known existing technology and there are mature products. Therefore, no further explanation of its principle is given. The first regulating valve 3 and the second regulating valve 7 are both manual and are used to manually regulate the oxygen flow. During the oxygen delivery stage of pipeline 1, one of the first regulating valves 3 of pipeline 1 is in a semi-open state and the other first regulating valve 3 is in a fully open state. During the maintenance stage of the first vortex flow meter 2, both first regulating valves 3 of pipeline 1 are in a fully closed state.

[0024] In one embodiment, buffer seats 4 are respectively fitted onto the surfaces of both ends of the pipe 1, and the surfaces of the buffer seats 4 have connection holes 11 corresponding to the pipe 1. A plurality of polyurethane buffers 12 are installed around the connection holes 11, and one end of each polyurethane buffer 12 is fixed with a rubber abutment 13 that contacts the outer wall of the pipe 1. In this device, the vortex flowmeter relies on vibration to generate frequency signals. In environments with strong vibration, the vibration-generated signal is greater than the fluid-generated signal, and when the detection amplification board cannot eliminate the vibration signal, the sensor cannot accurately detect the vibration. To ensure accurate measurement, since the sensor still outputs a frequency even when there is no flow, it generates flow data detection errors. Therefore, when the pipe 1 vibrates, a set of buffer seats 4 are set on the surface of the pipe 1 in pairs with the first vortex flow meter 2, and multiple sets of polyurethane buffers 12 and rubber blocks 13 are set in the connection hole 11 to buffer and absorb the vibration, so that the vibration amplitude transmitted to the first vortex flow meter 2 and the second vortex flow meter 8 is reduced to a minimum, reducing the interference of vibration on the first vortex flow meter 2 and the second vortex flow meter 8, thereby improving the accuracy of oxygen flow detection.

[0025] In one embodiment, the branch pipe 5 has an overall U-shaped structure, and the length of the branch pipe 5 is greater than the distance between the two first regulating valves 3 on the pipe 1. That is, the length of the branch pipe 5 covers the installation area of ​​the first regulating valve 3 and the first vortex flow meter 2 on the pipe 1, so as to facilitate the subsequent replacement and maintenance of the first vortex flow meter 2.

[0026] In one embodiment, flanges are provided at both ends of the first vortex flow meter 2 and the second vortex flow meter 8, and the dimensions of the first vortex flow meter 2 and the second vortex flow meter 8 are matched with the pipe diameters of the pipe 1 and the branch pipe 5, respectively. The flanges facilitate the installation and disassembly of the first vortex flow meter 2 and the second vortex flow meter 8.

[0027] In one embodiment, multiple buffer seats 4 are provided along the length of the pipe 1, and each buffer seat 4 has a mounting base plate 14 fixed to its bottom, which facilitates the fixing of the buffer seat 4.

[0028] In one embodiment, the end of the rubber block 13 away from the polyurethane buffer 12 is provided with an arc surface, and the arc surface is bonded to the outer wall of the pipe 1 by sealant. By using the rubber block 13, the buffering and energy absorption effect can be further improved on the basis of the polyurethane buffer 12.

[0029] Working principle:

[0030] In use, by opening the first regulating valve 3, oxygen is forced to flow through pipe 1 at a stable flow rate. The actual oxygen flow rate is detected by the first vortex flow meter 2 and displayed on the built-in display panel. This allows for easy acquisition of oxygen flow data while satisfying flow regulation, facilitating the control of oxygen flow in pipe 1. When maintaining the first vortex flow meter 2, the two first regulating valves 3 of pipe 1 are closed, and the shut-off valves 6 at both ends of branch pipe 5 are opened. This allows the second regulating valve 7 and the second vortex flow meter 8 of branch pipe 5 to replace the first regulating valve 3 and the first vortex flow meter 2 for oxygen flow control, facilitating the replacement and maintenance of the first vortex flow meter 2. When pipe 1 vibrates, a set of buffer seats 4 are set on the surface of pipe 1 in pairs around the first vortex flow meter 2. Multiple sets of polyurethane buffers 12 and rubber blocks 13 set in the connection hole 11 can buffer and absorb vibration, minimizing the vibration amplitude transmitted to the first vortex flow meter 2 and the second vortex flow meter 8. This reduces the interference of vibration on the first vortex flow meter 2 and the second vortex flow meter 8, thereby improving the accuracy of oxygen flow detection.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oxygen flow control device in a pipeline, comprising a pipeline (1), characterized in that: A first vortex flow meter (2) is installed on the surface of the pipe (1), and a first regulating valve (3) connected to the pipe (1) is provided on the left and right sides of the first vortex flow meter (2). A branch pipe (5) connected to the pipe (1) is provided below the first vortex flow meter (2), and a shut-off valve (6) is installed at both ends of the branch pipe (5). A second regulating valve (7) and a second vortex flow meter (8) are installed on the surface of the branch pipe (5) from left to right. A vortex generator (9) is installed inside the first vortex flow meter (2) and the second vortex flow meter (8), and a detection element (10) is installed inside the first vortex flow meter (2) and the second vortex flow meter (8) corresponding to the vortex generator (9).

2. The oxygen flow control device in the pipeline according to claim 1, characterized in that: The surfaces of both ends of the pipe (1) are respectively fitted with buffer seats (4), and the surfaces of the buffer seats (4) are provided with connection holes (11) corresponding to the pipe (1). Several polyurethane buffers (12) are installed around the connection holes (11), and one end of each polyurethane buffer (12) is fixed with a rubber block (13) that is connected to the outer wall of the pipe (1).

3. The oxygen flow control device in the pipeline according to claim 1, characterized in that: The branch pipe (5) has a U-shaped structure, and the length of the branch pipe (5) is greater than the distance between the two first regulating valves (3) on the pipe (1).

4. The oxygen flow control device in the pipeline according to claim 1, characterized in that: Both ends of the first vortex flow meter (2) and the second vortex flow meter (8) are provided with flanges, and the dimensions of the first vortex flow meter (2) and the second vortex flow meter (8) are matched with the pipe diameters of the pipe (1) and the branch pipe (5), respectively.

5. The oxygen flow control device in the pipeline according to claim 2, characterized in that: Multiple buffer seats (4) are provided along the length of the pipe (1), and each buffer seat (4) has a mounting base plate (14) fixed at its bottom.

6. The oxygen flow control device in the pipeline according to claim 2, characterized in that: The rubber block (13) has an arc surface at one end away from the polyurethane buffer (12), and the arc surface is bonded to the outer wall of the pipe (1) by sealant.

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