High-temperature ball valve internal fitting gap hot-state verification device

Abstract

The utility model discloses a kind of high-temperature ball valve internal accessory gap thermal state verification equipment, it includes gas supply device, heating device, first gas pipe, second gas pipe, first temperature detection component and control device, the both ends of the first gas pipe are respectively connected in the gas inlet of the gas supply device and the heating device, the second gas pipe is connected in the gas outlet of the heating device, for installing measured ball valve on the second gas pipe, the first temperature detection component is connected in the heating device and is used to detect the gas temperature in the heating device, the input end of the control device is electrically connected in the first temperature detection component, the output end of the control device is electrically connected in the heating device. By heating device, the gas source provided by gas supply device is heated to high-temperature gas, can most truly simulate the actual working condition of measured ball valve, realize accurate and reliable detection result. Easy to operate;And overall structure is simple, low in cost, easy to realize and popularize.

Description

Technical Field

[0001] This utility model relates to a thermal verification device for the gaps of internal components of a high-temperature ball valve. Background Technology

[0002] Ball valves are widely used critical fluid control devices. In high-temperature conditions (such as in petrochemical, energy, and metallurgical industries), the internal metal components, including the valve stem, ball, and seat, undergo dimensional changes due to thermal expansion. If the clearances between these components are not properly planned during the design phase, valves that move freely at room temperature may experience serious problems such as jamming or even seizing at high temperatures due to expansion interference, leading to valve failure and potentially causing production safety accidents.

[0003] Currently, routine valve quality inspections are typically conducted at room temperature, which cannot realistically simulate high-temperature operating conditions. Therefore, there is an urgent need for a testing device that can simulate high-temperature operating conditions and is specifically designed to verify the valve's performance under hot conditions. This would allow for the timely detection and resolution of potential faults caused by unreasonable thermal expansion clearances before the product leaves the factory or during the design phase. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings of existing technology. This invention provides a hot-state verification device for the gaps of internal components of a high-temperature ball valve.

[0005] This utility model is achieved through the following technical solution:

[0006] A hot-state verification device for the gaps of internal components of a high-temperature ball valve includes a gas supply device, a heating device, a first gas pipe, a second gas pipe, a first temperature detection component, and a control device. The two ends of the first gas pipe are respectively connected to the inlets of the gas supply device and the heating device. The gas supply device provides a gas source and delivers it to the heating device through the first gas pipe. The second gas pipe is connected to the outlet of the heating device and is used to install the ball valve under test. The first temperature detection component is connected to the heating device and is used to detect the gas temperature inside the heating device. The input end of the control device is electrically connected to the first temperature detection component, and the output end of the control device is electrically connected to the heating device. The control device receives the real-time temperature value emitted by the first temperature detection component and compares it with its internal set value to control the output power and on / off state of the heating device.

[0007] Furthermore, the hot-state verification device for the gaps between the internal components of the high-temperature ball valve also includes a check valve, which is connected to the first gas pipe and located between the gas supply device and the heating device.

[0008] Furthermore, the hot-state verification device for the internal component gaps of the high-temperature ball valve also includes a safety valve, which is connected to the first gas pipe and located between the check valve and the heating device.

[0009] Furthermore, the control device is electrically connected to the safety valve and is used to control the opening and closing of the safety valve.

[0010] Furthermore, the first temperature detection component is a thermocouple.

[0011] Furthermore, the hot-state verification device for the gaps between the internal components of the high-temperature ball valve also includes a second temperature detection component. The second temperature detection component is disposed on the second air pipe and located between the heating device and the ball valve under test, and the second temperature detection component is electrically connected to the control device.

[0012] Furthermore, the second temperature detection component is a thermocouple.

[0013] Furthermore, the hot-state verification device for the gaps between the internal components of the high-temperature ball valve also includes a third temperature detection component, which is disposed on the second air pipe and located at the outlet end of the ball valve under test, and is electrically connected to the control device.

[0014] Furthermore, the third temperature detection component is a thermocouple.

[0015] Furthermore, the heating device is a heating furnace.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention relates to a hot-state verification device for the gaps in the internal components of a high-temperature ball valve. The device heats the gas supplied by the gas supply unit to a high temperature, realistically simulating the actual working state of the ball valve under test, thus achieving accurate and reliable test results. Simultaneously, the device enables automated control, making operation convenient. Furthermore, the overall structure is simple, low-cost, and easy to implement and promote. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a hot-state verification device for the gaps between internal components of a high-temperature ball valve according to an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] Gas supply device 1

[0021] Heating device 2

[0022] Air intake 21

[0023] Air outlet 22

[0024] First temperature detection component 3

[0025] First trachea 4

[0026] Second trachea 5

[0027] Check valve 6

[0028] Safety valve 7

[0029] Second temperature detection component 8

[0030] Third temperature detection component 9

[0031] Tested ball valve 10 Detailed Implementation

[0032] The following description of the embodiments is with reference to the accompanying drawings, which illustrate specific embodiments in which the present invention can be implemented.

[0033] like Figure 1 As shown, this embodiment discloses a hot-state verification device for the gaps of internal components of a high-temperature ball valve. The hot-state verification device for the gaps of internal components of a high-temperature ball valve includes a gas supply device 1, a heating device 2, a first temperature detection component 3, a first gas pipe 4, a second gas pipe 5, and a control device. The two ends of the first gas pipe 4 are respectively connected to the inlet 21 of the gas supply device 1 and the heating device 2. The gas supply device 1 is used to provide a gas source and deliver it to the heating device 2 through the first gas pipe 4. The second gas pipe 5 is connected to the outlet 22 of the heating device 2 and is used to install the ball valve 10 under test on the second gas pipe 5. The first temperature detection component 3 is connected to the heating device 2 and is used to detect the gas temperature inside the heating device 2. The input end of the control device is electrically connected to the first temperature detection component 3, and the output end of the control device is electrically connected to the heating device 2. The control device is used to receive the real-time temperature value sent by the first temperature detection component 3 and compare it with its internal set value to control the output power and on / off state of the heating device 2.

[0034] The gas supplied by the gas supply device 1 enters the heating device 2 through the first gas pipe 4 and the air inlet 21. The heating device 2 heats the gas. The first temperature detection component 3 detects the temperature of the gas inside the heating device 2. The control device receives the real-time temperature value from the first temperature detection component 3 and compares it with its internal set value to control the output power and on / off state of the heating device 2. When the gas inside the heating device 2 reaches the set temperature, the control device stops the heating function and opens the air outlet 22 of the heating device 2, allowing the high-temperature gas inside the heating device 2 to enter the second gas pipe 5 through the air outlet 22. The high-temperature gas then passes through the ball valve 10 under test on the second gas pipe 5. By heating the gas supplied by the gas supply device 1 to a high temperature through the heating device 2, the actual working state of the ball valve 10 under test can be simulated most realistically, achieving accurate and reliable test results. At the same time, the control device enables automated control operation, which is convenient to operate; and the overall structure is simple, low-cost, and easy to implement and promote.

[0035] The hot-state verification equipment for the clearance of internal components of the high-temperature ball valve also includes a check valve 6, which is connected to the first gas pipe 4 and located between the gas supply device 1 and the heating device 2. The check valve 6 can effectively prevent the gas flowing to the heating device 2 from flowing back into the gas supply device 1, thereby improving the safety and stability of the hot-state verification equipment for the clearance of internal components of the high-temperature ball valve.

[0036] The hot-state verification device for the clearance of internal components of the high-temperature ball valve also includes a safety valve 7. The safety valve 7 is connected to the first gas pipe 4 and located between the check valve 6 and the heating device 2. The safety valve 7 serves to ensure the safety of the hot-state verification device for the clearance of internal components of the high-temperature ball valve. The safety valve 7 can automatically release pressure, effectively preventing damage or explosion due to excessive pressure, thus ensuring higher safety and stability.

[0037] The control device is electrically connected to safety valve 7 and is used to control the opening and closing of safety valve 7. The hot-state verification equipment for the internal component gaps of the high-temperature ball valve may also include a pressure detection component. This pressure detection component is located inside the hot-state verification equipment for detecting internal pressure. The input end of the control device is electrically connected to the pressure detection component, and the output end of the control device is electrically connected to safety valve 7. When the pressure value detected in real time by the pressure detection component is greater than the internal set pressure value of the control device, the control device controls the opening of safety valve 7 to release pressure, achieving automated control and convenient operation.

[0038] The first temperature detection component 3 can be a thermocouple. The thermocouple is used to detect the gas temperature inside the heating device 2, achieving high measurement accuracy and fast thermal response time. The heating device 2 is a heating furnace.

[0039] The hot-state verification equipment for the internal component gaps of the high-temperature ball valve also includes a second temperature detection component 8. The second temperature detection component 8 is mounted on the second gas pipe 5 and located between the heating device 2 and the ball valve 10 under test, and is electrically connected to the control device. The second temperature detection component 8 is used to detect the temperature of the high-temperature gas discharged from the outlet 22. Through the second temperature detection component 8, the temperature of the high-temperature gas entering the ball valve 10 under test can be measured more accurately, enabling real-time and precise temperature monitoring.

[0040] Among them, the second temperature detection component 8 is a thermocouple. The thermocouple is used to detect the high temperature of the gas at the inlet of the ball valve 10 under test, so as to achieve high measurement accuracy and fast thermal response time.

[0041] The hot-state verification equipment for the internal component clearances of the high-temperature ball valve also includes a third temperature detection component 9. This third temperature detection component 9 is mounted on the second gas pipe 5 and located at the outlet end of the ball valve 10 under test, and is electrically connected to the control device. The third temperature detection component 9 is used to detect the temperature of the high-temperature gas discharged from the outlet of the ball valve 10. After the ball valve 10 is installed, the target temperature is set and the equipment is started. Once the temperature at the measuring point of the ball valve 10 reaches the target value and stabilizes, it indicates that the ball valve 10 has been sufficiently heated. At this point, the operator manually or through the actuator operates the ball valve 10 to open or close it. By subjectively perceiving or objectively measuring the magnitude of the operating force / torque, the rationality of the clearance design can be determined: smooth opening and closing indicates a reasonable clearance; jamming indicates that the clearance is too small and the design is unreasonable. This allows for the most realistic simulation of the actual working state of the ball valve under test, achieving accurate and reliable test results.

[0042] Among them, the third temperature detection component 9 is a thermocouple. The thermocouple is used to detect the high temperature of the gas at the outlet of the ball valve 10 under test, so as to achieve high measurement accuracy and fast thermal response time.

[0043] The high-temperature ball valve internal component clearance thermal verification equipment of this embodiment constructs a test environment simulating high-temperature working conditions. The gas supply device 1 provides a stable airflow, which, after passing through a check valve 6 and a safety valve 7 for safety protection, enters the heating device 2 and is heated to a predetermined high temperature. The high-temperature gas then flows through the ball valve 10 under test, which is installed on the test fixture, ensuring uniform heating. Thermocouples installed at the outlet of the heating device 2 and the inlet and outlet of the ball valve 10 under test are used for real-time and accurate temperature monitoring. Heating with high-temperature gas allows for the most realistic simulation of the valve's actual working state, resulting in reliable test results. Operators manually or via actuators operate the valve to open and close it. By subjectively perceiving or objectively measuring the operating force / torque, the rationality of the clearance design can be determined: smooth opening and closing indicates a reasonable clearance; jamming indicates an excessively small clearance and an unreasonable design. Directly using the perceptible phenomenon of "jamming" as the criterion for judgment is simple, intuitive, and effective. Furthermore, potential problems can be identified during the valve manufacturing or design finalization stage, preventing the use of defective valves and eliminating safety hazards. Furthermore, the equipment is mainly composed of common components, making it low-cost and easy to implement and promote.

[0044] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hot-state verification device for the clearance of internal components of a high-temperature ball valve, characterized in that, It includes a gas supply device, a heating device, a first gas pipe, a second gas pipe, a first temperature detection component, and a control device. The two ends of the first gas pipe are respectively connected to the gas supply device and the gas inlet of the heating device. The gas supply device is used to provide a gas source and deliver it to the heating device through the first gas pipe. The second gas pipe is connected to the gas outlet of the heating device and is used to install a ball valve to be tested on the second gas pipe. The first temperature detection component is connected to the heating device and is used to detect the gas temperature inside the heating device. The input end of the control device is electrically connected to the first temperature detection component, and the output end of the control device is electrically connected to the heating device. The control device is used to receive the real-time temperature value emitted by the first temperature detection component and compare it with its internal set value to control the output power and on / off state of the heating device.

2. The hot-state verification equipment for the gaps of internal components of a high-temperature ball valve as described in claim 1, characterized in that, The hot-state verification equipment for the internal component gaps of the high-temperature ball valve also includes a check valve, which is connected to the first gas pipe and located between the gas supply device and the heating device.

3. The hot-state verification equipment for the gaps of internal components of a high-temperature ball valve as described in claim 2, characterized in that, The hot-state verification equipment for the internal component gaps of the high-temperature ball valve also includes a safety valve, which is connected to the first gas pipe and located between the check valve and the heating device.

4. The hot-state verification equipment for the gaps of internal components of a high-temperature ball valve as described in claim 3, characterized in that, The control device is electrically connected to the safety valve and is used to control the opening and closing of the safety valve.

5. The hot-state verification equipment for the clearance of internal components of a high-temperature ball valve as described in claim 1, characterized in that, The first temperature detection component is a thermocouple.

6. The hot-state verification equipment for the gaps of internal components of a high-temperature ball valve as described in claim 1, characterized in that, The hot-state verification device for the gaps between the internal components of the high-temperature ball valve also includes a second temperature detection component. The second temperature detection component is disposed on the second air pipe and located between the heating device and the ball valve under test, and the second temperature detection component is electrically connected to the control device.

7. The hot-state verification equipment for the gaps of internal components of a high-temperature ball valve as described in claim 6, characterized in that, The second temperature detection component is a thermocouple.

8. The hot-state verification equipment for the gaps of internal components of a high-temperature ball valve as described in claim 1, characterized in that, The hot-state verification device for the gaps between internal components of the high-temperature ball valve also includes a third temperature detection component. The third temperature detection component is disposed on the second air pipe and located at the outlet end of the ball valve under test, and the third temperature detection component is electrically connected to the control device.

9. The hot-state verification equipment for the gaps of internal components of a high-temperature ball valve as described in claim 8, characterized in that, The third temperature detection component is a thermocouple.

10. The hot-state verification equipment for the clearance of internal components of a high-temperature ball valve as described in claim 1, characterized in that, The heating device is a heating furnace.

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