Device and method for testing air tightness of conservator capsule
Through automated air pumps and detection components, combined with gas flow and air pressure temperature detection controlled by solenoid valves, the problem of cumbersome and inaccurate capsule air tightness detection in the prior art is solved, and efficient and accurate capsule air tightness detection is achieved.
Patent Information
- Application Number
- CN202510573982.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2025-07-04
AI Technical Summary
The existing capsule airtightness detection methods are cumbersome and inaccurate enough, and have low automation, resulting in low efficiency and large errors.
The automatic air pump and detection components are used to detect the capsule airtightness through the inflation, pressure stabilization and exhaust pipes. The gas flow is controlled by a solenoid valve, and combined with air pressure and temperature detection, to achieve automated and accurate detection of the airtightness of the capsule.
It improves the degree of automation of capsule airtightness detection and the accuracy of detection results, and avoids inefficiency and error caused by human operation.
Smart Images
Figure CN120253124A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of airtightness tests for transformer conservator capsules, and particularly to an airtightness test device for a conservator capsule and a test method therefor. Background Art
[0002] A nylon rubber diaphragm bag resistant to oil, generally called a capsule, is installed inside a transformer conservator. The inside of the capsule communicates with the atmosphere through a moisture absorber (breathing device), and the outside contacts the insulating oil. When the insulating oil in the transformer oil tank expands due to temperature rise, the oil level in the conservator also rises, and the capsule exhausts air. Conversely, when the oil level in the conservator drops, the capsule inhales air from the outside through the breathing device, automatically balancing the pressure inside and outside the bag. When a newly installed transformer conservator or a suspected damaged capsule is involved, an airtightness test needs to be carried out on the capsule. The process of the airtightness test is to fill the capsule with gas at a certain pressure and check its pressure holding level within a certain period. After the airtightness test is completed, the gas inside the capsule also needs to be pumped out to facilitate the storage and installation of the capsule. The existing method is to use a manual valve for control, and use a nitrogen cylinder or a dry air generator to inflate the capsule. After inflating to a certain pressure, the manual valve is closed, and the airtightness is judged manually. After the airtightness test is completed, the capsule also needs to be exhausted, and the work is rather cumbersome, and the structure of the airtightness detection is not accurate enough.
[0003] It can be seen that there is still room for improvement in the current capsule airtightness verification method, and it should be optimized to improve the automation degree of capsule airtightness detection and enhance the accuracy of airtightness detection results. Therefore, a more reasonable technical solution needs to be proposed to solve the technical problems existing in the prior art. Summary of the Invention
[0004] To at least overcome one of the above-mentioned defects, the present invention proposes an airtightness test device for a conservator capsule and a test method therefor. By automatically inflating, detecting, and exhausting, the airtightness test of the conservator capsule is completed, thereby realizing the automation of the capsule airtightness test and improving the accuracy of the test results.
[0005] To achieve the above object, the test device disclosed by the present invention can adopt the following technical solutions:
[0006] An airtightness test device for a conservator capsule includes an air pump for inflating and exhausting. The air pump transports gas into the capsule through an inflation pipeline and pumps out the gas inside the capsule through an exhaust pipeline. Control valve assemblies are provided on both the inflation pipeline and the exhaust pipeline; it further includes an adapter that cooperates and communicates with the air port of the capsule, and the inflation pipeline and the exhaust pipeline communicate with the adapter respectively; it further includes a detection component for detecting the gas parameters inside the capsule.
[0007] The above-disclosed airtightness test device has an air pump that can both inflate and exhaust. The connected air inlet pipe and exhaust pipe are used to inflate and exhaust the capsule respectively. After inflation, the state of the capsule is detected by the detection component to determine the airtight state of the capsule, thereby realizing the airtightness detection of the capsule. After the detection is completed, the gas in the capsule is discharged through the exhaust pipe, so as to store and subsequently install and use the capsule.
[0008] Further, to complete the inflation and exhaust operations of the capsule, the air pump can be arranged in various ways, and its structure is not uniquely limited. Here, an optimization is carried out and a feasible option is proposed: an inlet pipe and an outlet pipe are respectively arranged at the inlet end and the outlet end of the air pump. The air inlet pipe of the air pump includes a first air inlet pipe section communicating with the inlet pipe and a second air inlet pipe section communicating with the outlet pipe. The exhaust pipe includes a first exhaust pipe section communicating with the inlet pipe and a second exhaust pipe section communicating with the outlet pipe. When the air pump inflates, the first air inlet pipe section and the second air inlet pipe section are connected; when the air pump exhausts, the first exhaust pipe section and the second exhaust pipe section are connected. When the above scheme is adopted, the first air inlet pipe section, the air pump, and the second air inlet pipe section form an inflation loop; the first exhaust pipe section, the air pump, and the second exhaust pipe section form an exhaust loop.
[0009] Further, the air inlet pipe is a one-way gas transmission structure that allows external gas to enter the air inlet pipe unidirectionally and be input into the capsule. A one-way gas transmission can be achieved through various schemes, and its structure is not uniquely limited. Here, an optimization is carried out and a feasible option is proposed: a first inflation valve is arranged on the first air inlet pipe section, and a second inflation valve is arranged on the second air inlet pipe section. When the above scheme is adopted, the first inflation valve and the second inflation valve include solenoid valves. When inflating, the solenoid valve opens the air inlet pipe section, and when not inflating, the solenoid valve shuts off the air inlet pipe section.
[0010] Further, the exhaust pipe section is a one-way gas transmission structure that allows the gas in the capsule to be unidirectionally transported to the outside. Its structure is not uniquely limited. Here, an optimization is carried out and a feasible option is proposed: a first exhaust valve is arranged on the first exhaust pipe section, and a second exhaust valve is arranged on the second exhaust pipe section. When the above scheme is adopted, the first exhaust valve and the second exhaust valve include solenoid valves. When exhausting, the solenoid valve opens the exhaust pipe section, and when not exhausting, the solenoid valve shuts off the exhaust pipe section.
[0011] Further, the first air inlet pipe section and the second exhaust pipe section can be optimized in structure to form a partially shared structure. Here, an optimization is carried out and a feasible option is proposed: the first air inlet pipe section and the second exhaust pipe section are connected and form a first common air port. When the above scheme is adopted, the first air inlet pipe section obtains external gas from the first common air port during inflation, and the second exhaust pipe section transports gas to the first common air port during exhaust.
[0012] Furthermore, the second gas charging pipe section and the first exhaust pipe section can also be structurally optimized to form a partially common structure. Here, an optimization is carried out and one feasible option is proposed: the second gas charging pipe section and the first exhaust pipe section are connected and form a second common gas port. When the above scheme is adopted, during inflation, the gas in the second gas charging pipe section is transported to the second common gas port and then continues to be transported to the capsule. During exhaust, the gas from inside the capsule is transported to the second common gas port and enters the first exhaust port.
[0013] Further, when the gas charging pipeline, the exhaust pipeline are connected to the capsule, ventilation can be achieved through multiple pipelines or a single pipeline, which is not uniquely limited. Here, an optimization is carried out and one feasible option is proposed: the second common gas port is connected to the adapter through the main gas pipe. When the above scheme is adopted, the main gas pipe directly extends from the second common gas port to the gas port of the capsule and is connected to the capsule through the adapter. A main gas valve is provided on the main gas pipe.
[0014] Further, during inflation and exhaust, the control air pump and the corresponding inflation valve and exhaust valve can accurately control the processes of inflation and exhaust. Here, an optimization is carried out and one feasible option is proposed: it further includes an interaction controller, which is used to control the start and stop of the air pump, the on-off of the gas charging pipeline and the on-off of the exhaust pipeline. When the above scheme is adopted, the interaction controller includes a touch panel, and the air pump, the inflation valve and the exhaust valve are controlled in real time through the touch panel.
[0015] Furthermore, the detection of the gas parameters inside the capsule includes multiple data. Here, an optimization is carried out and one feasible option is proposed: the detection component includes a barometric pressure detection piece and a temperature detection piece. When the above scheme is adopted, the barometric pressure detection piece and the temperature detection piece can adopt corresponding detection meters.
[0016] The above discloses a capsule airtightness test device, and the present invention also discloses an airtightness test method.
[0017] An oil pillow capsule airtightness test method, using the test device described above, includes:
[0018] Turn on the air pump and fill the capsule with gas through the gas charging pipeline;
[0019] Turn off the air pump and the gas charging pipeline, keep the capsule at a stable pressure, and continuously measure the barometric pressure and temperature of the capsule within a set time; if the barometric pressure and temperature reach the set range, it means the airtightness of the airbag meets the standard, and if the barometric pressure or temperature does not reach the set range, it means the airtightness of the airbag does not meet the standard;
[0020] Turn on the air pump and discharge the gas inside the capsule through the exhaust pipeline.
[0021] Compared with the prior art, some beneficial effects of the disclosed technical solution of the present invention include:
[0022] The test device provided by the present invention realizes inflation, pressure stabilization and exhaust automatically, making the airtightness detection of the capsule more automatic and efficient, avoiding the low efficiency and errors caused by manual operation, and facilitating the control of the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0024] Figure 1 It is a schematic diagram of the overall structure of the airtight device and the capsule in cooperation.
[0025] Figure 2 It is a schematic diagram of the overall structure of the adapter.
[0026] Figure 3 It is a side sectional view of the air pump.
[0027] In the above-mentioned drawings, the meanings of the respective marks are as follows:
[0028] 1. Capsule; 2. Adapter; 3. Detection component; 4. Main air valve; 5. Air pump; 501. First inflation valve; 502. Second inflation valve; 503. First exhaust valve; 504. Second exhaust valve; 6. Main air pipe; 7. First inflation pipe section; 8. Second inflation pipe section; 9. First exhaust pipe section; 10. Second exhaust pipe section; 11. Intake pipe; 12. Outlet pipe; 13. First common air port; 14. Second common air port. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The following will further explain this embodiment in conjunction with the drawings and specific embodiments.
[0030] Aiming at the problems of low efficiency, large errors and inaccurate results in the airtightness detection of capsules in the prior art, the following embodiments are optimized to overcome the defects existing in the prior art.
[0031] Embodiment 1
[0032] As Figures 1 to 3As shown in the figure, this embodiment provides an airtightness test device for an oil pillow capsule, which includes an air pump 5 for inflating and exhausting air. The air pump 5 conveys gas into the capsule 1 through an inflation pipeline and extracts the gas in the capsule 1 through an exhaust pipeline. Control valve assemblies are provided on both the inflation pipeline and the exhaust pipeline; it also includes an adapter connected and communicated with the air port of the capsule 1, and the inflation pipeline and the exhaust pipeline are respectively ventilated with the adapter; it further includes a detection component 3 for detecting the gas parameters inside the capsule 1.
[0033] For the airtightness test device disclosed in this embodiment, the air pump 5 can both inflate and exhaust air. The connected inflation pipeline and exhaust pipeline are respectively used to inflate and exhaust the capsule 1. After inflation, the state of the capsule 1 is detected by the detection component 3, and the airtight state of the capsule 1 can be determined, thereby realizing the airtightness detection of the capsule 1. After the detection is completed, the gas in the capsule 1 is discharged through the exhaust pipeline, so as to carry out the storage and subsequent installation and use of the capsule 1.
[0034] To complete the inflation and exhaust operations of the capsule 1, the air pump 5 can be arranged in a variety of ways, and its structure is not uniquely limited. This embodiment is optimized and one feasible option is adopted: an intake pipe 11 and an outlet pipe 12 are respectively arranged at the intake end and the outlet end of the air pump 5. The inflation pipeline includes a first inflation pipe section 7 communicated with the intake pipe 11 and a second inflation pipe section 8 communicated with the outlet pipe 12. The exhaust pipeline includes a first exhaust pipe section 9 communicated with the intake pipe 11 and a second exhaust pipe section 10 communicated with the outlet pipe 12. When the air pump 5 inflates, the first inflation pipe section 7 and the second inflation pipe section 8 are connected; when the air pump 5 exhausts, the first exhaust pipe section 9 and the second exhaust pipe section 10 are connected. When the above scheme is adopted, the first inflation pipe section 7, the air pump 5, and the second inflation pipe section 8 form an inflation loop; the first exhaust pipe section 9, the air pump 5, and the second exhaust pipe section 10 form an exhaust loop.
[0035] The inflation pipeline is a one-way gas transmission structure, enabling external gas to enter the inflation pipeline unidirectionally and be input into the capsule 1. A one-way gas transmission can be achieved through a variety of schemes, and its structure is not uniquely limited. This embodiment is optimized and one feasible option is adopted: a first inflation valve 501 is provided on the first inflation pipe section 7, and a second inflation valve 502 is provided on the second inflation pipe section 8. When the above scheme is adopted, the first inflation valve 501 and the second inflation valve 502 include solenoid valves. When inflating, the solenoid valves open the inflation pipe section, and when not inflating, the solenoid valves shut off the inflation pipe section.
[0036] The exhaust pipe section is a one-way gas transmission structure that enables the gas in the capsule 1 to be transported unidirectionally to the outside. Its structure is not uniquely defined. In this embodiment, it is optimized and one feasible option is adopted: a first exhaust valve 503 is provided on the first exhaust pipe section 9, and a second exhaust valve 504 is provided on the second exhaust pipe section 10. When the above solution is adopted, the first exhaust valve 503 and the second exhaust valve 504 include solenoid valves. When exhausting, the solenoid valves open the exhaust pipe section, and when not exhausting, the solenoid valves shut off the exhaust pipe section.
[0037] The first inflation pipe section 7 and the second exhaust pipe section 10 can be structurally optimized to form a partially shared structure. In this embodiment, it is optimized and one feasible option is adopted: the first inflation pipe section 7 and the second exhaust pipe section 10 are connected and form a first common air port 13. When the above solution is adopted, during inflation, the first inflation pipe section 7 obtains external gas from the first common air port 13, and during exhaust, the second exhaust pipe section 10 transports gas to the first common air port 13.
[0038] The second inflation pipe section 8 and the first exhaust pipe section 9 can also be structurally optimized to form a partially shared structure. In this embodiment, it is optimized and one feasible option is adopted: the second inflation pipe section 8 and the first exhaust pipe section 9 are connected and form a second common air port 14. When the above solution is adopted, during inflation, the gas in the second inflation pipe section 8 is transported to the second common air port 14 and continues to be transported to the capsule 1. During exhaust, the gas from inside the capsule 1 is transported to the second common air port 14 and enters the first exhaust port.
[0039] When the inflation pipeline, the exhaust pipeline and the capsule 1 are connected, ventilation can be achieved through multiple pipelines or a single pipeline, which is not uniquely defined. In this embodiment, it is optimized and one feasible option is adopted: the second common air port 14 is connected to the adapter through the main air pipe 6. When the above solution is adopted, the main air pipe 6 directly extends from the second common air port 14 to the air port of the capsule 1 and is connected to the capsule 1 through the adapter. A main air valve 4 is provided on the main air pipe 6.
[0040] When inflating and exhausting, controlling the air pump 5 and the corresponding inflation valves and exhaust valves can accurately control the processes of inflation and exhaust. In this embodiment, it is optimized and one feasible option is adopted: an interaction controller is further included. The interaction controller is used to control the start and stop of the air pump 5, the on-off of the inflation pipeline and the on-off of the exhaust pipeline. When the above solution is adopted, the interaction controller includes a touch panel, and the air pump 5, the inflation valve and the exhaust valve are controlled in real time through the touch panel.
[0041] The detection of the internal gas parameters of the capsule 1 includes multiple data. In this embodiment, optimization is carried out and one of the feasible options is adopted: the detection component 3 includes a barometric detection piece and a temperature detection piece. When adopting the above scheme, the barometric detection piece and the temperature detection piece can adopt corresponding detection tables.
[0042] Embodiment 2
[0043] The above Embodiment 1 discloses a hermeticity test device for the capsule 1. This embodiment also discloses a hermeticity test method.
[0044] An oil conservator capsule hermeticity test method, adopting the above-mentioned test device, includes:
[0045] Turn on the air pump 5 and fill the capsule 1 with gas through the filling pipeline.
[0046] Turn off the air pump 5 and the filling pipeline, keep the capsule 1 under a stable pressure, and continuously measure the air pressure and temperature of the capsule 1 within a set time; if the air pressure and temperature reach the set range, it means that the airtightness of the airbag meets the standard, and if the air pressure or temperature does not reach the set range, it means that the airtightness of the airbag does not meet the standard.
[0047] Turn on the air pump 5 and discharge the gas in the capsule 1 through the exhaust pipeline.
[0048] The test method disclosed in this embodiment judges the airtightness according to the following method:
[0049] After inflation, calculate the temperature value T1 and air pressure value P1 of the measured capsule 1 at this time, keep the capsule 1 under a stable pressure, and measure the temperature value T2 and air pressure value P2 of the capsule 1 after reaching the pressure holding time.
[0050] In this embodiment, the capsule 1 is made of nylon rubber. When inflated to a certain pressure, its volume change is very small and can be regarded as unchanged.
[0051] According to the ideal gas state equation PV / T = C, it can be known that for a gas with a constant volume, its pressure is proportional to the temperature. Therefore, if there is no leakage in the capsule 1 body, P1 / T1 = P2 / T2. Therefore, this formula can be used to judge whether the capsule 1 leaks.
[0052] The above are the implementation manners listed in this embodiment, but this embodiment is not limited to the above optional implementation manners. Those skilled in the art can obtain many other implementation manners by arbitrarily combining the above manners. Anyone can obtain other various forms of implementation manners under the inspiration of this embodiment. The above specific implementation manners should not be understood as a limitation on the protection scope of this embodiment. The protection scope of this embodiment should be defined by the claims.
Claims
1. An airtightness test device for an oil conservator capsule, characterized in that: It includes an air pump (5) for inflation and exhaust. The air pump (5) conveys gas into the capsule (1) through an inflation pipeline and extracts the gas in the capsule (1) through an exhaust pipeline. Control valve assemblies are provided on both the inflation pipeline and the exhaust pipeline. It also includes an adapter that cooperates and communicates with the air port of the capsule (1). The inflation pipeline and the exhaust pipeline are respectively in communication with the adapter. It further includes a detection component (3) for detecting the gas parameters inside the capsule (1).
2. The oil pillow capsule airtightness test device according to claim 1, characterized in that: An intake pipe (11) and an outlet pipe (12) are respectively provided at the intake end and the outlet end of the air pump (5). The inflation pipeline includes a first inflation pipe segment (7) in communication with the intake pipe (11) and a second inflation pipe segment (8) in communication with the outlet pipe (12). The exhaust pipeline includes a first exhaust pipe segment (9) in communication with the intake pipe (11) and a second exhaust pipe segment (10) in communication with the outlet pipe (12). When the air pump (5) inflates, the first inflation pipe segment (7) and the second inflation pipe segment (8) are put into communication. When the air pump (5) exhausts, the first exhaust pipe segment (9) and the second exhaust pipe segment (10) are put into communication.
3. The oil pillow capsule airtightness test device according to claim 2, characterized in that: A first inflation valve (501) is provided on the first inflation pipe segment (7), and a second inflation valve (502) is provided on the second inflation pipe segment (8).
4. The oil pillow capsule airtightness test device according to claim 2, characterized in that: A first exhaust valve (503) is provided on the first exhaust pipe segment (9), and a second exhaust valve (504) is provided on the second exhaust pipe segment (10).
5. The oil pillow capsule airtightness test device according to claim 2, 3 or 4, characterized in that: The first inflation pipe segment (7) and the second exhaust pipe segment (10) are in communication and form a first common air port (13).
6. The oil pillow capsule airtightness test device according to claim 2, 3 or 4, characterized in that: The second inflation pipe segment (8) and the first exhaust pipe segment (9) are in communication and form a second common air port (14).
7. The oil pillow capsule airtightness test device according to claim 6, characterized in that: The second common air port (14) is connected to the adapter through a main pipeline (6).
8. The airtightness test device for the oil conservator capsule according to claim 1, wherein: It further includes an interaction controller for controlling the start and stop of the air pump (5), the on-off of the inflation pipeline, and the on-off of the exhaust pipeline.
9. The oil conservator capsule airtightness test device according to claim 1, wherein: The detection component (3) includes a barometric pressure detection element and a temperature detection element.
10. A method for testing the airtightness of an oil conservator capsule, using the test device described in any one of claims 1 to 9, characterized in that, It includes: Start the air pump (5) and inflate the capsule (1) through the inflation pipeline. Close the air pump (5) and the inflation pipeline, keep the capsule (1) at a stable pressure, and continuously measure the barometric pressure and temperature of the capsule (1) within a set time. If the barometric pressure and temperature reach the set range, it indicates that the airtightness of the airbag is up to standard. If the barometric pressure or temperature does not reach the set range, it indicates that the airtightness of the airbag is not up to standard. Start the air pump (5) and exhaust the gas in the capsule (1) through the exhaust pipeline.