Endurance test device for pipeline valve
By designing the durability test device for main and bypass pipeline components, the problem of cutting off and circulation of high-temperature and high-pressure gases on aircraft cannot be reproduced in the prior art, and the reliability verification and equipment protection of pipeline shutters are achieved.
Patent Information
- Application Number
- CN202422379388.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing pipeline flap durability test device cannot reproduce the cutting and circulation of high-temperature and high-pressure gas on the aircraft, and cannot fully verify the reliability of the pipeline flap.
A durability test device including main and bypass pipeline components is designed. The pipeline shutter and bypass control valve are controlled through electrical connectors to realize the cutting and circulation of high-temperature and high-pressure gas, and the gas is discharged through the bypass pipeline to avoid damage to the test pipeline.
It realizes tens of thousands of switching cycles of pipeline shutters during the entire life cycle, ensures the cutting and circulation of high-temperature and high-pressure gas, verifies the reliability of pipeline shutters, and protects the test equipment.
Smart Images
Figure CN223243930U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline valves of aircraft environmental control systems, in particular to a durability testing device for pipeline valves. Background Art
[0002] The aircraft environmental control system is one of the important onboard systems of an aircraft. Among them, the duct valve is an important component of the aircraft environmental control system. It is used to cut off or circulate high-temperature and high-pressure gas, thereby controlling the flow of bleed air and achieving the goal of controlling the cabin temperature.
[0003] Duct valves are installed in large numbers on aircraft, covering a wide range of subsystems, including refrigeration and ventilation. Furthermore, some of these valves circulate high-temperature, high-pressure gases. Consequently, these valves are subject to high reliability requirements. The valve durability test equipment must complete tens of thousands of cycles of shutting off and circulating high-temperature, high-pressure gases to ensure the valves are tested under load.
[0004] Existing duct valve durability testing equipment often applies a control signal to the duct valve's control mechanism. The valve's inlet and outlet are either not connected to the air supply pipeline, or the valve's inlet and outlet are connected to the air supply pipeline. To prevent damage to the electric furnace in the test pipeline caused by high-temperature, high-pressure gas when the valve is closed, the air supply in the pipeline is room temperature. This disadvantage is that the durability test cannot replicate the duct valve's operating conditions on an aircraft, failing to meet the durability test requirement of shutting off and circulating high-temperature, high-pressure gas tens of thousands of times over its life cycle, thus failing to fully verify the duct valve's reliability. Utility Model Content
[0005] The purpose of the utility model is to provide a durability test device for pipeline valves. The utility model can fully verify the reliability of pipeline valves.
[0006] The technical solution of the utility model is: a durability test device for a pipeline valve, comprising a main pipeline component and a bypass pipeline component; the main pipeline component comprises a main pipeline front section, a pipeline valve, a main pipeline rear section, and a main regulating valve; the bypass pipeline component comprises a bypass pipeline front section, a bypass control valve, a bypass pipeline rear section, and a bypass regulating valve; the inlet and outlet of the pipeline valve are respectively connected to the outlet end of the main pipeline front section and the inlet end of the main pipeline rear section, and the outlet end of the main pipeline rear section is connected to the main regulating valve; the inlet and outlet of the bypass control valve are respectively connected to the outlet end of the bypass pipeline front section and the inlet end of the bypass pipeline rear section, and the outlet end of the bypass pipeline rear section is connected to the bypass regulating valve.
[0007] In the aforementioned durability test device for the pipeline valve, the pipeline valve and the bypass control valve are both connected to the control cabinet through an electrical connector.
[0008] In the aforementioned durability test device for the pipeline valve, the main pipeline assembly is connected to the bypass pipeline assembly through a flange, and a sealing gasket is provided at the connection.
[0009] In the aforementioned durability test device for the pipeline valve, the control cabinet outputs a control signal to control the opening / closing of the pipeline valve and the bypass control valve through the electrical connector.
[0010] In the durability test device of the aforementioned pipeline valve, the inner diameter of the pipeline valve is the same as the inner diameter of the front section of the main pipeline; the outer diameter of the pipeline valve is the same as the outer diameter of the front section of the main pipeline; the inlet of the pipeline valve and the outlet of the front section of the main pipeline are spliced to form an inverted "V" shape, connected by a V-shaped clamp, and a sealing gasket is provided at the connection; the outlet of the pipeline valve and the inlet of the rear section of the main pipeline are spliced to form an inverted "V" shape, connected by a V-shaped clamp, and a sealing gasket is provided at the connection; the outer diameter of the main regulating valve is the same as the outer diameter of the rear section of the main pipeline, connected by a flange, and a sealing gasket is provided at the connection.
[0011] In the aforementioned durability test device for the pipeline valve, the outer diameter of the bypass control valve is the same as the outer diameter of the front section of the bypass pipeline, and is connected by a flange, with a sealing gasket at the connection; the outer diameter of the bypass regulating valve is the same as the outer diameter of the rear section of the bypass pipeline, and is connected by a flange, with a sealing gasket at the connection.
[0012] The advantages of the utility model are:
[0013] 1. Through this test device, the pipeline valve can operate under load conditions in the durability test. The pipeline valve completes tens of thousands of opening and closing cycles throughout its life cycle, realizing the cutting off and circulation of high-temperature and high-pressure gas.
[0014] 2. By setting up a bypass pipe, when the pipeline valve is closed, the high-temperature and high-pressure gas is discharged into the atmosphere through the bypass pipe, avoiding damage to the electric furnace on the test pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a structural schematic diagram of a durability test device for a pipeline valve.
[0016] Figure 2 The utility model is a schematic diagram of a main pipeline component of a durability test device for a pipeline valve.
[0017] Figure 3 The utility model is a schematic diagram of a bypass pipe assembly of a durability test device for a pipe valve.
[0018] Figure 4 The utility model is a schematic diagram of a durability test device for a pipeline valve in an open state.
[0019] Figure 5 The utility model is a schematic diagram of a closed state of a durability test device for a pipeline valve.
[0020] In the figure: 1-front section of main pipeline, 2-pipeline valve, 3-rear section of main pipeline, 4-main regulating valve; 5-control cabinet; 6-bypass regulating valve, 7-rear section of bypass pipeline, 8-bypass control valve, 9-front section of bypass pipeline. DETAILED DESCRIPTION
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.
[0022] Example 1. A durability test device for pipeline valves, such as Figure 1 As shown, it includes a main pipeline assembly, a bypass pipeline assembly and a control cabinet. The main pipeline assembly includes a main pipeline front section 1, a pipeline valve 2, a main pipeline rear section 3, and a main regulating valve 4. The bypass pipeline assembly includes a bypass pipeline front section 9, a bypass control valve 8, a bypass pipeline rear section 7 and a bypass regulating valve 6, wherein:
[0023] The main pipeline assembly and the bypass pipeline assembly are connected by flanges; the main pipeline front section 1 and the main pipeline rear section 3 are connected to the two ends of the pipeline valve 2 through V-shaped clamps; the other end of the main pipeline rear section 3 is connected to the main regulating valve 4 through a flange; the bypass pipeline front section 9 and the bypass pipeline rear section 7 are connected to the two ends of the bypass control valve 8 through flanges; the other end of the bypass pipeline rear section 7 is connected to the bypass regulating valve 6 through a flange; the control cabinet 5 is connected to the pipeline valve 2 and the bypass control valve 8 through an electrical connector.
[0024] Preferably, Figure 4 As shown, the control cabinet 5 sends a command signal to open the pipeline valve 2 on the main pipeline and close the bypass control valve 8 on the bypass pipeline. The high-temperature and high-pressure gas is discharged from the main pipeline. By adjusting the opening of the main regulating valve 4, the gas pressure in the main pipeline reaches the required pressure tolerance range, and finally the circulation of the high-temperature and high-pressure gas in the main pipeline is completed.
[0025] Among them, after the pipeline valve 2 on the main pipeline is fully opened and the bypass control valve 8 on the bypass pipeline is fully closed, the two valves need to maintain this state for a period of time so that the gas pressure and temperature in the main pipeline can reach stability, so as to fully assess the opening state of the pipeline valve 2.
[0026] Furthermore, after the high temperature and high pressure gas circulation is completed, Figure 5As shown, the control cabinet 5 sends a command signal again to open the pipeline valve 2 on the main pipeline and close the bypass control valve 8 on the bypass pipeline. The gas that should have been discharged from the main pipeline cannot be discharged from the main pipeline due to the closure of the pipeline valve, and enters the bypass pipeline and is discharged from the bypass. Moreover, by adjusting the opening of the bypass regulating valve 6, the residual gas pressure in the main pipeline can also reach the required pressure tolerance range, thereby completing the cutting off of the high-temperature and high-pressure gas in the main pipeline.
[0027] Preferably, after the pipeline valve 2 on the main pipeline is fully closed and the bypass control valve 8 on the bypass pipeline is fully opened, the two valves need to maintain this state for a period of time so that the gas pressure and temperature in the main pipeline can reach stability, so as to fully assess the closing state of the pipeline valve.
[0028] Preferably, when the pipeline valve 2 on the main pipeline is gradually closed, the bypass control valve 8 on the bypass pipeline is gradually opened, which can prevent the electric furnace from accumulating high-temperature and high-pressure gas at the gas source and being unable to be discharged, thereby damaging the electric furnace.
[0029] Preferably, after the high-temperature and high-pressure gas in the main pipeline is cut off, the pipeline valve 2 completes a switching cycle, and the control cabinet 5 continues to send control signals to drive the pipeline valve 2 and the bypass control valve 8 to open and close, and this cycle is repeated to achieve the cutting off and circulation of the high-temperature and high-pressure gas in the main pipeline, and complete the switching cycle of the pipeline valve 2.
Claims
1. A durability test device for pipeline valves, characterized in that: The invention comprises a main pipeline assembly and a bypass pipeline assembly; the main pipeline assembly comprises a main pipeline front section (1), a pipeline valve (2), a main pipeline rear section (3), and a main regulating valve (4); the bypass pipeline assembly comprises a bypass pipeline front section (9), a bypass control valve (8), a bypass pipeline rear section (7), and a bypass regulating valve (6); the inlet and outlet of the pipeline valve (2) are respectively connected to the outlet end of the main pipeline front section (1) and the inlet end of the main pipeline rear section (3), and the outlet end of the main pipeline rear section (3) is connected to the main regulating valve (4); the inlet and outlet of the bypass control valve (8) are respectively connected to the outlet end of the bypass pipeline front section (9) and the inlet end of the bypass pipeline rear section (7), and the outlet end of the bypass pipeline rear section (7) is connected to the bypass regulating valve (6).
2. The durability test device for pipeline valves according to claim 1, characterized in that: The pipeline valve (2) and the bypass control valve (8) are both connected to the control cabinet (5) through an electrical connector.
3. The durability testing device for pipeline valves according to claim 1, characterized in that: The main pipeline assembly is connected to the bypass pipeline assembly through a flange, and a sealing gasket is provided at the connection.
4. The durability test device for pipeline valves according to claim 2, characterized in that: The control cabinet (5) outputs a control signal to control the opening / closing of the pipeline valve (2) and the bypass control valve (8) through an electrical connector.
5. The durability test device for pipeline valves according to claim 1, characterized in that: The inner diameter of the pipeline valve (2) is the same as the inner diameter of the main pipeline front section (1); the outer diameter of the pipeline valve (2) is the same as the outer diameter of the main pipeline front section (1); the inlet of the pipeline valve (2) and the outlet of the main pipeline front section (1) are spliced together to form an inverted "V" shape, connected by a V-shaped clamp, and a sealing gasket is provided at the connection; the outlet of the pipeline valve (2) and the inlet of the main pipeline rear section (3) are spliced together to form an inverted "V" shape, connected by a V-shaped clamp, and a sealing gasket is provided at the connection; the outer diameter of the main regulating valve (4) is the same as the outer diameter of the main pipeline rear section (3), connected by a flange, and a sealing gasket is provided at the connection.
6. The durability test device for pipeline valves according to claim 1, characterized in that: The outer diameter of the bypass control valve (8) is the same as the outer diameter of the front section (9) of the bypass pipeline, and they are connected via a flange, with a sealing gasket provided at the connection; the outer diameter of the bypass regulating valve (6) is the same as the outer diameter of the rear section (7) of the bypass pipeline, and they are connected via a flange, with a sealing gasket provided at the connection.