Butterfly valve on-line pressure calibrator

Abstract

The utility model discloses an online butterfly valve pressure calibrator, which relates to the technical field of pressure calibrators and comprises a calibration platform, an instrument console, a test base, a mounting frame, an electric push rod and a water pipe connector. A mounting frame is mounted above the verification platform close to the test base, and an electric push rod is mounted in the mounting frame. According to the butterfly valve on-line pressure calibration instrument, when the internal pressure of a butterfly valve needs to be released and a forward and reverse motor rotates forwards, a lead screw can be driven to rotate forwards, when the lead screw rotates forwards, a movable seat can be driven to slide in a threaded mode in the direction close to the forward and reverse motor, the butterfly valve to be detected is placed on a transverse plate, and the butterfly valve to be detected can be temporarily placed through the transverse plate; the butterfly valve can be verified continuously, and a person does not need to run back and forth to take the butterfly valve, so that the butterfly valve verification efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure calibrators, in particular to an online pressure calibrator for a butterfly valve. Background Art

[0002] The butterfly valve pressure calibrator is a device specially used to calibrate the sealing performance and pressure-bearing capacity of butterfly valves. By simulating actual working conditions, the butterfly valve is subjected to online pressure testing to ensure that it meets the design requirements and usage standards. Existing pressure calibrators still have certain defects when used.

[0003] In the existing technology, butterfly valve pressure calibrators are mainly used to detect the sealing performance and pressure-bearing capacity of butterfly valves under specific pressure. Through water pipe joints, they support pressure testing of multiple media (such as water, oil, gas, etc.). Through high-precision pressure sensors, they collect the pressure signals that the butterfly valves are subjected to in working conditions in real time. The collected pressure signals are analog signals, which need to be converted into digital signals through signal conversion circuits and amplified as necessary. The converted digital signals are sent to a microprocessor or a dedicated data processing unit for further processing. The processed data will be displayed on the screen of the calibrator in an intuitive manner, such as numerical values, charts or curves. After the calibration is completed, the pressure calibrator needs to release the pressure. When the pressure is released, the medium inside the butterfly valve is easy to splash onto the staff in front of the pressure calibrator, which poses a certain risk. Utility Model Content

[0004] The purpose of the utility model is to provide an online pressure calibrator for butterfly valves to solve the problem of safety risks in pressure calibrators currently on the market when releasing pressure, as proposed in the above background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A butterfly valve online pressure calibrator, comprising: a calibration platform, an instrument console, a test base, a mounting frame, an electric push rod and a water pipe joint, the instrument console and the test base are respectively installed on the surface of the calibration platform, the mounting frame is installed on the calibration platform near the upper part of the test base, the electric push rod is installed inside the mounting frame, the output end of the electric push rod is connected to the water pipe joint, the mounting block is welded to the front of the mounting frame, a T-shaped slot is opened inside the mounting block, the T-shaped slot is slidably connected to the inside of the T-shaped block, the end of the T-shaped block is connected to the connecting plate, the calibration platform is installed with a forward and reverse motor near the front of the test base, a screw rod is connected between the output end of the forward and reverse motor and the calibration platform through a bearing, the outer side of the screw rod is threadedly connected to a moving seat, and the moving seat and the back of the connecting plate are jointly connected with a transparent plate.

[0006] Preferably, the size of the T-slot matches the size of the T-block.

[0007] Preferably, the movable seat and the connecting plate are both made of iron.

[0008] Preferably, a stopper is welded to the outer side of the calibration platform, a connecting shaft is installed on the outer side of the calibration platform close to the stopper, and a transverse plate is rotatably connected to the outer side of the connecting shaft.

[0009] Preferably, a rubber block is bonded to the interior of the transverse plate, the interior of the transverse plate is rotatably connected to a support plate via a rotating shaft, and the interior of the support plate is threadedly connected to a threaded knob.

[0010] Preferably, an extension plate is slidably connected to the interior of the support plate, a limiting block is welded to the outside of the calibration platform away from the stop block, and a bolt is threadedly connected to the interior of the limiting block.

[0011] Compared with the prior art, the beneficial effect of the utility model is that: when the internal pressure of the butterfly valve needs to be released, the butterfly valve online pressure calibrator can drive the screw rod to rotate forward when the forward and reverse motors rotate forward, and when the screw rod rotates forward, it can drive the movable seat to slide in the direction close to the forward and reverse motors, and place the butterfly valve to be tested on the horizontal board. The butterfly valve to be tested can be temporarily placed through the horizontal board, and the butterfly valve can be continuously calibrated without the need for personnel to run back and forth to pick it up, thereby improving the efficiency of butterfly valve calibration.

[0012] 1. The butterfly valve online pressure calibrator realizes accurate calibration and evaluation of the butterfly valve pressure performance by collecting, converting, processing, displaying and recording the pressure signal of the butterfly valve. However, it is easy to cause harm to the staff during the pressure release process. When the internal pressure of the butterfly valve needs to be released, the forward and reverse motors rotate forward, which can drive the screw to rotate forward. When the screw rotates forward, it can drive the movable seat to slide in the direction close to the forward and reverse motors. When the movable seat slides, it can drive the transparent plate to move. When the transparent plate moves, it can drive the connecting plate to move. When the connecting plate moves, it can drive the T-block to move. When the T-block slides to the deepest part of the mounting block, the T-block cannot continue to slide. At this time, the transparent plate can completely block the test base and the water pipe joint, so that the instrument console can be controlled to release the pressure inside the butterfly valve. When the pressure is released, the medium inside the butterfly valve will splash onto the back of the transparent plate. The transparent plate makes it difficult for the staff to be splashed, thereby improving the safety of the pressure calibrator.

[0013] 2. In-line butterfly valve pressure calibrators are widely used in industries such as petroleum, chemical, electric power, metallurgy, and water treatment. During use, it is difficult to temporarily place the butterfly valve to be tested, and it is cumbersome for personnel to run back and forth to retrieve the butterfly valve, which reduces calibration efficiency. When the horizontal plate moves, it can be rotated via the connecting shaft. When the top surface of the horizontal plate rotates and moves to the bottom surface of the stop block, the support plate can be pulled out from the inside of the horizontal plate. When the extension plate is removed from the inside of the horizontal plate, the threaded knob can be loosened so that the end of the threaded knob no longer presses against the surface of the extension plate. When the end of the support plate slides to the junction of the limit block and the calibration platform, the threaded knob can be tightened so that the end of the threaded knob can thread through the extension plate and the support plate. The bolts inside the limit block are tightened so that the ends of the bolts move to the surface of the extension plate, thereby limiting the position of the extension plate. The butterfly valve to be tested is placed on the horizontal plate. The horizontal plate can be used to temporarily place the butterfly valve to be tested, allowing the butterfly valve to be calibrated continuously without the need for personnel to run back and forth to retrieve it, thereby improving the efficiency of butterfly valve calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the transparent plate of the utility model from the left side;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of A;

[0017] Figure 4 This is a schematic diagram of the main cutaway structure of the horizontal plate of the present invention.

[0018] In the figure: 1. Calibration platform; 2. Instrument console; 3. Test base; 4. Mounting frame; 5. Electric push rod; 6. Water pipe connector; 7. Mounting block; 8. T-slot; 9. T-block; 10. Connecting plate; 11. Forward and reverse motor; 12. Screw; 13. Moving seat; 14. Transparent plate; 15. Stop block; 16. Connecting shaft; 17. Horizontal plate; 18. Rubber block; 19. Support plate; 20. Threaded knob; 21. Extension plate; 22. Limit block. 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 3 It can be seen that the utility model provides a technical solution: a butterfly valve online pressure calibrator, comprising: a calibration platform 1, an instrument console 2, a test base 3, a mounting frame 4, an electric push rod 5 and a water pipe joint 6, the surface of the calibration platform 1 is respectively installed with the instrument console 2 and the test base 3, the calibration platform 1 is installed with a mounting frame 4 above the test base 3, the interior of the mounting frame 4 is installed with an electric push rod 5, the output end of the electric push rod 5 is connected to the water pipe joint 6, the mounting block 7 is welded to the front of the mounting frame 4, and the internal opening of the mounting block 7 is provided. A T-slot 8 is provided, and a T-block 9 is slidably connected inside the T-slot 8. The end of the T-block 9 is connected to a connecting plate 10. A forward and reverse motor 11 is installed on the front of the calibration platform 1 near the test base 3. A screw rod 12 is connected to the output end of the forward and reverse motor 11 and the calibration platform 1 through a bearing. The outer side of the screw rod 12 is threadedly connected to a moving seat 13. The moving seat 13 and the back of the connecting plate 10 are jointly connected with a transparent plate 14. The size of the T-slot 8 matches the size of the T-block 9, and the material of the moving seat 13 and the connecting plate 10 are both iron.

[0021] During specific implementation, the butterfly valve online pressure calibrator realizes accurate calibration and evaluation of the butterfly valve pressure performance by collecting, converting, processing, displaying and recording the pressure signal of the butterfly valve. However, in the process of releasing the pressure, it is easy to cause harm to the staff. When the internal pressure of the butterfly valve needs to be released, the forward and reverse motor 11 can be started. When the forward and reverse motor 11 rotates forward, it can drive the screw rod 12 to rotate forward. When the screw rod 12 rotates forward, it can drive the movable seat 13 to slide threadedly in the direction close to the forward and reverse motor 11. When the movable seat 13 slides threadedly, it can drive the transparent plate 14 to move. When the transparent plate 14 moves, it can drive the connecting plate 10 to move. When the connecting plate 10 moves, it can drive the T-shaped block 9 to move. When the T-shaped block 9 moves, it can slide with the mounting block 7 through the T-shaped slot 8. When the T-shaped block 9 slides to the deepest part of the mounting block 7, the T-shaped block 9 can no longer slide, and the forward and reverse motor 11 can be turned off. At this time, the transparent plate 14 can completely block the test base 3 and the water pipe joint 6, so that the instrument console 2 can be controlled to release the pressure inside the butterfly valve.

[0022] See Figure 1-Figure 3 It can be seen that when the pressure is released, the medium inside the butterfly valve will splash onto the back of the transparent plate 14. The transparent plate 14 makes it difficult for workers to be splashed, thereby improving the safety of using the pressure calibrator.

[0023] See Figure 1 and Figure 4It can be seen that a stopper 15 is welded to the outer side of the verification platform 1, and a connecting shaft 16 is installed on the outer side of the verification platform 1 near the stopper 15. The outer side of the connecting shaft 16 is rotatably connected to a horizontal plate 17, and a rubber block 18 is bonded to the inside of the horizontal plate 17. The inside of the horizontal plate 17 is rotatably connected to a support plate 19 through a rotating shaft. The internal thread of the support plate 19 is connected to a threaded knob 20, and the internal sliding connection of the support plate 19 is connected to an extension plate 21. A limiting block 22 is welded to the outer side of the verification platform 1 away from the stopper 15, and the internal thread of the limiting block 22 is connected to a bolt, and a threaded groove matching the size of the threaded knob 20 is opened through the inside of the extension plate 21.

[0024] In specific implementation, butterfly valve online pressure calibrator is widely used in petroleum, chemical, electric power, metallurgy, water treatment and other industries. It is an indispensable and important equipment in valve quality inspection. During the use of the pressure calibrator, it is difficult to temporarily place the butterfly valve to be inspected, and it is troublesome for personnel to run back and forth to take the butterfly valve, which makes the inspection efficiency low. The horizontal plate 17 can be pulled in the direction of the stopper 15. When the horizontal plate 17 moves, it can be rotated by the connecting shaft 16. When the top surface of the horizontal plate 17 rotates and moves to the bottom surface of the stopper 15, the support plate 19 can be pulled out from the inside of the horizontal plate 17. When the support plate 19 moves, it can be rotated by the rotating shaft, and when the support plate 19 moves, it can drive the extension plate 21 to move, and the extension plate 21 moves When the extension plate 21 is moved out from the inside of the horizontal plate 17, the threaded knob 20 can be loosened so that the end of the threaded knob 20 no longer presses the surface of the extension plate 21. At this time, the extension plate 21 can slide out from the inside of the support plate 19. When the end of the support plate 19 slides to the junction of the limit block 22 and the calibration platform 1, the threaded knob 20 can be tightened so that the end of the threaded knob 20 can thread through the extension plate 21 and the support plate 19. At this time, the extension plate 21 and the support plate 19 can be fixed together, and the bolts inside the limit block 22 can be tightened so that the ends of the bolts can move to the surface of the extension plate 21, thereby limiting the position of the extension plate 21 and placing the butterfly valve to be inspected on the horizontal plate 17.

[0025] See Figure 1 and Figure 4 It can be seen that the butterfly valves to be inspected can be temporarily placed by the horizontal plate 17, and the butterfly valves can be continuously calibrated without the need for personnel to run back and forth to pick them up, thereby improving the efficiency of butterfly valve calibration.

[0026] To sum up, when using the butterfly valve online pressure calibrator, when the internal pressure of the butterfly valve needs to be released, the forward and reverse motor 11 can be started. When the forward and reverse motor 11 rotates forward, it can drive the screw 12 to rotate forward. When the pressure is released, the medium inside the butterfly valve will splash onto the back of the transparent plate 14. The transparent plate 14 makes it difficult for the staff to be splashed, thereby improving the safety of the use of the pressure calibrator. The bolts inside the limit block 22 are tightened so that the end of the bolt can move to the surface of the extension plate 21, thereby limiting the position of the extension plate 21, and placing the butterfly valve to be tested on the horizontal plate 17. The horizontal plate 17 can be used to temporarily place the butterfly valve to be tested, and the butterfly valve can be continuously calibrated without the need for personnel to run back and forth to pick it up, thereby improving the efficiency of butterfly valve calibration. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A butterfly valve online pressure calibrator, comprising: The calibration platform (1), the instrument console (2), the test base (3), the mounting frame (4), the electric push rod (5) and the water pipe joint (6) are characterized by: An instrument console (2) and a test base (3) are respectively installed on the surface of the calibration platform (1); a mounting frame (4) is installed above the calibration platform (1) near the test base (3); an electric push rod (5) is installed inside the mounting frame (4); and an output end of the electric push rod (5) is connected to a water pipe joint (6); A mounting block (7) is welded to the front of the mounting frame (4); a T-shaped slot (8) is provided inside the mounting block (7); a T-shaped block (9) is slidably connected to the inside of the T-shaped slot (8); an end of the T-shaped block (9) is connected to a connecting plate (10); a forward and reverse motor (11) is installed on the front of the calibration platform (1) near the test base (3); a screw rod (12) is connected to the calibration platform (1) via a bearing between the output end of the forward and reverse motor (11); a movable seat (13) is threadedly connected to the outer side of the screw rod (12); and a transparent plate (14) is commonly connected to the back of the movable seat (13) and the connecting plate (10).

2. The butterfly valve online pressure calibrator according to claim 1, characterized in that: The size of the T-shaped slot (8) matches the size of the T-shaped block (9).

3. The butterfly valve online pressure calibrator according to claim 1, characterized in that: The movable seat (13) and the connecting plate (10) are both made of iron.

4. The butterfly valve online pressure calibrator according to claim 1, characterized in that: A stopper (15) is welded to the outside of the calibration platform (1), a connecting shaft (16) is installed on the outside of the calibration platform (1) close to the stopper (15), and a transverse plate (17) is rotatably connected to the outside of the connecting shaft (16).

5. The butterfly valve online pressure calibrator according to claim 4, characterized in that: A rubber block (18) is bonded to the interior of the transverse plate (17), and a support plate (19) is rotatably connected to the interior of the transverse plate (17) via a rotating shaft. The interior of the support plate (19) is threadedly connected to a threaded knob (20).

6. The butterfly valve online pressure calibrator according to claim 5, characterized in that: The support plate (19) is internally slidably connected to an extension plate (21), and a limiting block (22) is welded to the outside of the calibration platform (1) away from the stop block (15), and the internal thread of the limiting block (22) is connected to a bolt.

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