Flowmeter detection system

Abstract

The utility model relates to the technical field of dosimeter detection equipment, and discloses a flowmeter detection system which comprises a bottom plate, an air pump is fixedly connected to one side of the upper end of the bottom plate, a first rubber block is fixedly connected to the air outlet end of the air pump, a first fixing plate is fixedly connected to the upper end of the bottom plate, and an exhaust pipe is arranged in the first fixing plate in a penetrating mode. The outer wall of the exhaust pipe is slidably sleeved with a moving pipe, the end, away from the exhaust pipe, of the moving pipe is fixedly connected with a second rubber block, and two electric push rods are fixedly connected to one side of the first fixing plate. According to the flowmeter detection system, through the design of the first rubber block, the second rubber block and the electric push rod, good sealing performance can be provided during detection, the accuracy of gas flow measurement can be ensured, the device has the advantages that a to-be-detected device can be conveniently installed, good sealing performance is provided during detection, and the detection accuracy is improved. This helps to ensure the accuracy of gas flow measurement.

Description

Technical Field

[0001] The present application relates to the technical field of dosimeter detection equipment, and specifically to a flow meter detection system. Background Art

[0002] There are many types of flow meters, and differential pressure flow meters are one of the most widely used types. Differential pressure flow meters generally change the flow velocity of the fluid in the center of the pipeline due to the local contraction of the flow beam of the standard throttling device, and its static pressure changes accordingly. Because local eddy current loss and friction resistance loss are generated when the fluid flows through the orifice plate, the static pressure cannot be restored to its original value after the flow beam is fully restored. The static pressure difference before and after the standard throttling device is related to the flow rate. The larger the flow rate, the more significant the contraction of the flow beam and the conversion of dynamic and static pressure energy, and the greater the pressure difference generated. By measuring the static pressure difference before and after the standard throttling device, the flow rate in the pipeline can be determined. This is the basic principle of the differential pressure flow meter.

[0003] The existing patent (Announcement No.: CN206514921U) discloses a positive and negative pressure multi-nozzle flowmeter detection system, including a flowmeter clamping platform, a multi-nozzle installation tank, and a negative pressure distribution chamber arranged in parallel with the multi-nozzle installation tank. One end of the flowmeter clamping platform is connected to a high-pressure gas source, and the other end is connected to the multi-nozzle installation tank. Several guide tubes are connected between the side wall of the multi-nozzle installation tank and the negative pressure distribution chamber, and an on-off control valve is provided on the guide tube. The multi-nozzle installation tank is provided with a reference Venturi nozzle at a position corresponding to each guide tube, and multiple reference Venturi nozzles belong to different specifications. The two ends of the negative pressure distribution chamber are respectively connected to a vacuum pump. The positive and negative pressure multi-nozzle flowmeter detection system uses reference Venturi nozzles of various specifications as the detection reference to detect other flowmeters, and cooperates with the valves corresponding to each flowmeter to detect flowmeters of different specifications and parameters, improve the adaptability of the detection system, and expand its working range.

[0004] The above-mentioned comparative document points out that the device can detect flow meters with different specifications and parameters, improve the adaptability of the detection system, and expand its working range. However, the operation of the device when detecting the flow meter may be relatively complicated, especially involving the assembly and calibration of multiple components. This may require the operator to have a high level of technical skills and experience, and gaps may be generated when connecting the flow meter with the first pressure measuring tube and the second pressure measuring tube, which will lead to the accuracy of the measurement results. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a flow meter detection system, which has the advantages of being easy to clamp the detection object, etc., and solves the problem that the operation of the device may be relatively complicated when detecting the flow meter, especially involving the assembly and calibration of multiple components. This may require the operator to have a high level of technical skills and experience, and a gap may be generated when the flow meter is connected to the first pressure measuring tube and the second pressure measuring tube, thereby causing problems with the accuracy of the measurement results.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a flow meter detection system, comprising a base plate, an air pump is fixedly connected to one side of the upper end of the base plate, an air outlet end of the air pump is fixedly connected to a first rubber block, an upper end of the base plate is fixedly connected to a first fixed plate, an exhaust pipe is penetrated through the inside of the first fixed plate, a moving tube is slidingly sleeved on the outer wall of the exhaust pipe, a second rubber block is fixedly connected to one end of the moving tube away from the exhaust pipe, and two electric push rods are fixedly connected to one side of the first fixed plate.

[0007] Through the above scheme, through the design of the first rubber block, the second rubber block and the electric push rod, it is possible to provide good sealing performance during detection, which helps to ensure the accuracy of gas flow measurement. The device to be detected is placed between the first rubber block and the second rubber block during detection, and then the electric push rod drives the moving tube to move, and the moving tube drives the second rubber block to move and extends into the device to be detected, thereby clamping the device to be detected between the first rubber block and the second rubber block. Since the first rubber block and the second rubber block are both conical, when the device to be detected is clamped, the first rubber block and the second rubber block are squeezed to automatically align the device to be detected along the central axis of the air outlet pipe and the exhaust pipe. The device is convenient for installing the device to be detected and provides good sealing performance during detection, which helps to ensure the accuracy of gas flow measurement.

[0008] Furthermore, a connecting ring is provided on the fixed sleeve of the outer wall of the moving tube, and the telescopic ends of the two electric push rods are fixedly connected to the connecting ring.

[0009] Through the above solution, the movable tube is driven by the electric push rod to move on the outer wall of the exhaust pipe.

[0010] Furthermore, a sealing ring is fixedly mounted on the outer wall of the air extraction pipe.

[0011] Through the above solution, the sealing ring is used to increase the sealing performance between the moving pipe and the exhaust pipe.

[0012] Furthermore, the air outlet end of the air pump and the outer wall of the moving tube are both fixedly sleeved with a strip hole connecting plate.

[0013] Through the above solution, the arrangement of the strip hole connecting plate plays a fixing role.

[0014] Furthermore, a second fixing plate is fixedly connected to the upper end of the bottom plate, and the air outlet end of the air pump is fixedly arranged inside the second fixing plate.

[0015] Through the above solution, the second fixing plate is used to fix the air outlet end of the air pump.

[0016] Furthermore, a gas tank is fixedly connected to the upper end of the bottom plate, and one end of the air extraction pipe away from the moving pipe is fixedly connected to the gas tank.

[0017] Through the above scheme, the air tank is used to temporarily store the air blown out by the air pump.

[0018] Furthermore, a vacuum pump is fixedly connected to the upper end of the bottom plate, a connecting pipe is fixedly connected to the air extraction end of the vacuum pump, and one end of the connecting pipe away from the vacuum pump is fixedly connected to the gas tank.

[0019] Through the above scheme, the vacuum pump is used to extract the air in the gas tank.

[0020] Furthermore, a flow meter is fixedly arranged between the first rubber block and the second rubber block, and fixing bolts are fixedly connected between the two sides of the flow meter and the bar hole connecting plate.

[0021] Through the above solution, the flow meter is clamped by the first rubber block and the second rubber block, and the flow meter is further fixed by fixing bolts passing through the bar hole connecting plate.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The flow meter detection system can provide good sealing performance during detection through the design of the first rubber block, the second rubber block and the electric push rod, which helps to ensure the accuracy of gas flow measurement. During detection, the device to be detected is placed between the first rubber block and the second rubber block, and then the electric push rod drives the moving tube to move, and the moving tube drives the second rubber block to move and extend into the flow meter, thereby clamping the flow meter between the first rubber block and the second rubber block. Since the first rubber block and the second rubber block are both conical, when the flow meter is clamped, the squeeze between the first rubber block and the second rubber block can automatically align the flow meter along the central axis of the outlet pipe and the exhaust pipe. The device is convenient for installing the flow meter and provides good sealing performance during detection, which helps to ensure the accuracy of gas flow measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 A schematic diagram of the structure of the clamping device of the present application;

[0026] Figure 3 It is a schematic diagram of the telescopic structure of the structure of this application;

[0027] Figure 4 This is a schematic diagram of the gas tank structure of this application.

[0028] In the figure:

[0029] 1. Bottom plate; 2. Air pump; 3. First rubber block; 4. First fixed plate; 5. Exhaust pipe; 6. Moving pipe; 7. Second rubber block; 8. Connecting ring; 9. Electric push rod; 10. Sealing ring; 11. Strip hole connecting plate; 12. Second fixed plate; 13. Gas tank; 14. Vacuum pump; 15. Connecting pipe; 16. Fixing bolt; 17. Flow meter. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] See also Figure 1 , Figure 2 and Figure 3 A flow meter detection system in this embodiment includes a base plate 1, an air pump 2 is fixedly connected to one side of the upper end of the base plate 1, the air pump 2 is used to output air, a first rubber block 3 is fixedly connected to the air outlet end of the air pump 2, a first fixed plate 4 is fixedly connected to the upper end of the base plate 1, an air extraction pipe 5 is penetrated inside the first fixed plate 4; a moving pipe 6 is slidingly sleeved on the outer wall of the air extraction pipe 5, the moving pipe 6 moves outside the air extraction pipe 5, and a second rubber block 7 is fixedly connected to one end of the moving pipe 6 away from the air extraction pipe 5, and two electric push rods 9 are fixedly connected to one side of the first fixed plate 4.

[0032] See also Figure 2 , Figure 3 and Figure 4, a connecting ring 8 is fixedly sleeved on the outer wall of the moving tube 6, and the telescopic ends of the two electric push rods 9 are fixedly connected to the connecting ring 8. The moving tube 6 is driven to move on the outer wall of the exhaust pipe 5 through the electric push rod 9. A sealing ring 10 is fixedly sleeved on the outer wall of the exhaust pipe 5. The sealing ring 10 is used to increase the sealing between the moving tube 6 and the exhaust pipe 5. The air outlet end of the air pump 2 and the outer wall of the moving tube 6 are fixedly sleeved with a strip hole connecting plate 11. The setting of the strip hole connecting plate 11 plays a fixing role. A second fixed plate 12 is fixedly connected to the upper end of the bottom plate 1. The air outlet end of the air pump 2 is fixedly arranged inside the second fixed plate 12. The second fixed plate 12 is used to fix the air outlet end of the air pump 2. A gas tank 13 is fixedly connected to the upper end of the bottom plate 1. One end of the exhaust pipe 5 away from the moving tube 6 is fixedly connected to the gas tank 13. The gas tank 13 is used to temporarily store the air blown out by the air pump 2.

[0033] See also Figure 1 A vacuum pump 14 is fixedly connected to the upper end of the bottom plate 1, and a connecting pipe 15 is fixedly connected to the exhaust end of the vacuum pump 14. The end of the connecting pipe 15 away from the vacuum pump 14 is fixedly connected to the gas tank 13. The vacuum pump 14 is configured to extract the air in the gas tank 13. A flow meter 17 is fixedly arranged between the first rubber block 3 and the second rubber block 7. Fixing bolts 16 are fixedly connected between the two sides of the flow meter 17 and the strip hole connecting plate 11. The flow meter 17 is clamped by the first rubber block 3 and the second rubber block 7, and the flow meter 17 is further fixed by the fixing bolts 16 passing through the strip hole connecting plate 11.

[0034] In this embodiment, the flow meter detection system can provide good sealing performance during detection through the design of the first rubber block 3, the second rubber block 7 and the electric push rod 9, which helps to ensure the accuracy of gas flow measurement. The device to be detected is placed between the first rubber block 3 and the second rubber block 7 during detection, and then the electric push rod 9 drives the moving tube 6 to move, and the moving tube 6 drives the second rubber block 7 to move and extend into the flow meter 17, thereby clamping the flow meter 17 between the first rubber block 3 and the second rubber block 7. Since the first rubber block 3 and the second rubber block 7 are both conical in shape, when the flow meter 17 is clamped, the flow meter 17 can be automatically aligned along the central axis of the air outlet pipe and the exhaust pipe 5 through the squeezing between the first rubber block 3 and the second rubber block 7. The device is convenient for installing the flow meter 17 and provides good sealing performance during detection, which helps to ensure the accuracy of gas flow measurement.

[0035] It should be noted that the first rubber block 3 and the second rubber block 7 are both hollow inside.

[0036] The working principle of the above embodiment is:

[0037] When in use, first place the flow meter between the first rubber block 3 and the second rubber block 7, then start the electric push rod 9 to push the moving tube 6 to move and then drive the second rubber block 7 to move and contact the flow meter 17, clamp it, then start the air pump 2 to inject air into the flow meter 17, when the air passes through the flow meter 17, the gas flow and pressure in the measuring area of ​​the flow meter 17 change, and observe whether the reading displayed by the flow meter 17 is normal, after passing through the flow meter 17, the air enters the gas tank 13, and the air in the gas tank 13 is extracted by the vacuum pump 14 after the operation.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flow meter detection system, comprising a base plate (1), characterized in that: An air pump (2) is fixedly connected to one side of the upper end of the base plate (1), an air outlet end of the air pump (2) is fixedly connected to a first rubber block (3), a first fixed plate (4) is fixedly connected to the upper end of the base plate (1), an air extraction pipe (5) is provided inside the first fixed plate (4), a moving pipe (6) is slidingly sleeved on the outer wall of the air extraction pipe (5), a second rubber block (7) is fixedly connected to one end of the moving pipe (6) away from the air extraction pipe (5), and two electric push rods (9) are fixedly connected to one side of the first fixed plate (4); The upper end of the bottom plate (1) is fixedly connected to a gas tank (13), and one end of the air extraction pipe (5) away from the moving pipe (6) is fixedly connected to the gas tank (13); The upper end of the bottom plate (1) is fixedly connected to a vacuum pump (14), the suction end of the vacuum pump (14) is fixedly connected to a connecting pipe (15), and one end of the connecting pipe (15) away from the vacuum pump (14) is fixedly connected to the gas tank (13).

2. A flow meter detection system according to claim 1, characterized in that: The outer wall of the moving tube (6) is fixedly sleeved with a connecting ring (8), and the telescopic ends of the two electric push rods (9) are fixedly connected to the connecting ring (8).

3. A flow meter detection system according to claim 1, characterized in that: A sealing ring (10) is fixedly sleeved on the outer wall of the air extraction pipe (5).

4. A flow meter detection system according to claim 1, characterized in that: The air outlet end of the air pump (2) and the outer wall of the moving tube (6) are both fixedly sleeved with a strip hole connecting plate (11).

5. A flow meter detection system according to claim 1, characterized in that: The upper end of the bottom plate (1) is fixedly connected to a second fixed plate (12), and the air outlet end of the air pump (2) is fixedly arranged inside the second fixed plate (12).

6. A flow meter detection system according to claim 1, characterized in that: A flow meter (17) is fixedly arranged between the first rubber block (3) and the second rubber block (7), and fixing bolts (16) are fixedly connected between the two sides of the flow meter (17) and the bar hole connecting plate (11).

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