CN111257748B - Device for pressure maintaining and quick part replacement, testing device and method - Google Patents
Device for pressure maintaining and quick part replacement, testing device and method Download PDFInfo
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- CN111257748B CN111257748B CN202010254030.0A CN202010254030A CN111257748B CN 111257748 B CN111257748 B CN 111257748B CN 202010254030 A CN202010254030 A CN 202010254030A CN 111257748 B CN111257748 B CN 111257748B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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Abstract
The embodiment of the disclosure discloses a device, a testing device and a method for fast replacing components in pressure maintaining, wherein the device for fast replacing components in pressure maintaining comprises: the device comprises a main body part, a control valve, a medium inlet and outlet, a fixing part and a recovery device; the main body member includes: a first section and a second section; the first sectional piece is provided with a free end, the other end of the first sectional piece is connected with the control valve, the control valve is connected with one end of the second sectional piece, and the other end of the second sectional piece is of an opening structure with a groove; the fixing piece detachably fixes the part to be replaced in the groove; the medium inlet and outlet is arranged on the second sectional piece and is connected with the recovery device through a pipeline. The technical scheme avoids the change of the attribute to be observed of the flowing medium caused by replacing parts, further influences the evaluation result, conveniently and quickly realizes nondestructive testing and observation, and ensures the continuity and accuracy of the evaluation result.
Description
Technical Field
The disclosure relates to the field of test evaluation, in particular to a device, a test device and a method for quickly replacing components in pressure maintaining.
Background
In the prior art, when a test article in a sealing device is tested and the performance of the test article and the performance of a flowing medium are evaluated, the test effect of the test article is usually observed through an observation window of the sealing device or performance parameters are evaluated by using an instrument. The inventor finds that in some test environments, such as a closed device with a flowing medium, during a test of a sample, due to high temperature, high pressure, high corrosivity, strong toxicity and ion splashing, the inner side of an observation window is easily polluted, a tester cannot directly replace a new observation window to evaluate the sample, and if an original flowing medium is emptied and then a new flowing medium is refilled, the accuracy and continuity of an evaluation result are affected by the difference of the media. If the original flowing medium is recycled and then refilled into the recycled flowing medium, the working efficiency can be reduced by refilling the flowing medium into the cavity with large volume in consideration of the difference of the volume of the cavity in the sealing device, which takes long time.
Disclosure of Invention
In order to solve the problems in the related art, embodiments of the present disclosure provide an apparatus, a testing apparatus, and a method for pressure-maintaining quick replacement of components.
In a first aspect, an embodiment of the present disclosure provides a device for pressure maintaining quick component replacement, including: the device comprises a main body part, a control valve, a medium inlet and outlet, a fixing part and a recovery device;
the main body piece includes: a first section and a second section;
the first sectional piece is provided with a free end, the other end of the first sectional piece is connected with the control valve, the control valve is connected with one end of the second sectional piece, and the other end of the second sectional piece is of an opening structure with a groove; the fixing piece detachably fixes the part to be replaced in the groove; the medium inlet and outlet is arranged on the second sectional piece and is connected with the recovery device through a pipeline when the medium needs to be recovered;
an observable channel is formed between the part to be replaced and the free end; the free end is used for connecting a cavity pipeline with flowing media, and when the control valve is opened, the flowing media flows into the observable channel; when the control valve is closed, a recovery device is started to recover the flowing medium in the second partition piece to the recovery device for storage, and after the part to be replaced is replaced, the flowing medium stored in the recovery device is charged into the observable channel again.
Optionally, the apparatus further comprises: a seal member;
the seals are disposed at respective connection points of the observable channels.
Optionally, the inner diameters of the first and second sections are adapted to the inner diameter of the control valve.
Optionally, the inner diameter of the opening structure of the groove is larger than the inner diameter of the second section.
Optionally, the apparatus further comprises: a cover plate;
the cover plate is arranged on the groove and can fix the part to be replaced.
In a second aspect, embodiments of the present disclosure provide a testing apparatus comprising the apparatus for pressure maintaining quick change of components of any one of the first aspects.
In a third aspect, the present disclosure provides a method for pressure maintaining quick replacement of components, which is applied to the testing device in the second aspect, wherein the testing device includes the cavity pipeline with flowing medium, and includes the following steps:
closing the control valve, connecting the recovery device, and storing the flowing medium in the observable channel between the control valve and the part to be replaced in the recovery device;
introducing gas into the observable channel from the medium inlet and outlet until the internal pressure of the observable channel is balanced with the atmospheric pressure, replacing the part to be replaced under the condition that the internal pressure and the external pressure of the observable channel are balanced, and fixing the replaced part to be replaced in the groove by using the fixing piece again;
and filling the flowing medium stored in the recovery device into the observable channel.
Optionally, the component to be replaced is a glass window or a test instrument.
In a fourth aspect, the disclosed embodiments provide a circuit breaker arc observation method, including the method for replacing the component to be replaced described in the third aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: according to the technical scheme provided by the embodiment of the disclosure, the device for replacing the pressure maintaining quick replacement part is connected with the cavity pipeline with the flowing medium through the free end of the first subsection, and the observable channel is formed between the part to be replaced and the free end, so that a tester can conveniently evaluate the test effect of a test sample from one side of the part to be replaced, the flowing medium in the observable channel between the part to be replaced and the control valve can be guided into the recovery device by closing the control valve, and the stored flowing medium in the recovery device is guided into the observable channel again after the part to be replaced is replaced, so that the change of the attribute to be observed of the flowing medium caused by the replacement of the part is avoided, the evaluation result is further influenced, nondestructive detection and observation are conveniently and quickly realized, and the continuity and accuracy of the evaluation result are ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
Other labels, objects and advantages of the present disclosure will become more apparent from the following detailed description of non-limiting embodiments when taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 shows a schematic structural view of a pressure holding quick change component apparatus according to an embodiment of the present disclosure;
fig. 2 shows a flow diagram of a method of pressure holding quick change component according to an embodiment of the present disclosure.
Detailed Description
Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. Also, for the sake of clarity, parts not relevant to the description of the exemplary embodiments are omitted in the drawings.
In the present disclosure, it is to be understood that terms such as "including" or "having," etc., are intended to indicate the presence of the disclosed features, numbers, steps, behaviors, components, parts, or combinations thereof, and are not intended to preclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or combinations thereof may be present or added.
It should be further noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As mentioned above, in the prior art, when testing the sample in the sealing device to evaluate the performance of the sample and the performance of the flowing medium, the testing effect of the sample is usually observed through the observation window of the sealing device or the performance parameters are evaluated by using an instrument. The inventor finds that in some test environments, such as a closed device with a flowing medium, during a test of a sample, due to high temperature, high pressure, high corrosivity, strong toxicity and ion splashing, the inner side of an observation window is easily polluted, a tester cannot directly replace a new observation window to evaluate the sample, and if an original flowing medium is emptied and then a new flowing medium is refilled, the accuracy and continuity of an evaluation result are affected by the difference of the media. If the original flowing medium is recycled and then refilled into the recycled flowing medium, the working efficiency can be reduced by refilling the flowing medium into the cavity with large volume in consideration of the difference of the volume of the cavity in the sealing device, which takes long time.
In view of the above-mentioned drawbacks, the embodiments of the present disclosure provide an apparatus for pressure-maintaining quick component replacement, including: the device comprises a main body part, a control valve, a medium inlet and outlet, a fixing part and a recovery device; the main body piece includes: a first section and a second section; the first sectional piece is provided with a free end, the other end of the first sectional piece is connected with the control valve, the control valve is connected with one end of the second sectional piece, and the other end of the second sectional piece is of an opening structure with a groove; the fixing piece detachably fixes the part to be replaced in the groove; the medium inlet and outlet is arranged on the second sectional piece and is connected with the recovery device through a pipeline; an observable channel is formed between the part to be replaced and the free end; the free end is used for connecting a cavity pipeline with flowing media, and when the control valve is opened, the flowing media flows into the observable channel; when the control valve is closed, the flowing medium in the second sectional piece is recovered to the recovery device for storage, and after the part to be replaced is replaced, the flowing medium stored in the recovery device is charged into the observable channel again. According to the technical scheme, the device for maintaining pressure and quickly replacing the part is connected with the cavity pipeline with the flowing medium through the free end of the first subsection, and the observable channel is formed between the part to be replaced and the free end, so that a tester can conveniently evaluate the test effect of a test sample from one side of the part to be replaced, the flowing medium in the observable channel between the part to be replaced and the control valve can be led into the recovery device by closing the control valve, and the flowing medium stored in the recovery device is led into the observable channel again after the part to be replaced is replaced, so that the phenomenon that the attribute of the flowing medium is changed to be observed due to replacement of the part is avoided, the evaluation result is influenced, nondestructive detection and observation are conveniently and quickly realized, and the continuity and accuracy of the evaluation result are ensured. Moreover, the device has the advantages of simple structure, convenience and quickness in installation, low cost and wide application range.
Fig. 1 shows a schematic structural view of a pressure maintaining quick component replacement device according to an embodiment of the present disclosure.
As shown in fig. 1, the pressure-holding quick-change member includes: a main body member 100, a control valve 200, a medium inlet/outlet 300, a fixing member 400, a recovery device 500, a sealing member 600, and a cover plate 700;
the main body 100 includes: a first segment 110 and a second segment 120;
the first segment 110 has a free end 111, the other end is connected to the control valve 200, the control valve 200 is connected to one end of the second segment 120, and the other end of the second segment 120 has an opening structure with a groove 121; the fixing member 400 detachably fixes the part a to be replaced in the groove 121; the medium inlet/outlet 300 is provided on the second sectional member 120 and connected to the recovery apparatus 500 through a pipe;
an observable channel is formed between the part to be replaced and the free end 111; the free end 111 is used for connecting a cavity pipe with flowing medium, and when the control valve 200 is opened, the flowing medium flows into the observable channel; when the control valve 200 is closed, the flowing medium is recovered to the recovery device 500 for storage, and after the component to be replaced is replaced, the flowing medium stored in the recovery device is refilled into the observable channel.
The sealing member 600 is disposed at each connection point of the observable channels. For example, when the first sectional member 110 is connected to the control valve 200 by a flange, the sealing member 600 is disposed at a gap of the flange. The sealing member 600 may be a sealing pad or a sealing ring, which is not limited herein.
The cover plate 700 is disposed on the groove 121 and can fix the component to be replaced. According to an embodiment of the present disclosure, the first segment 110 may be a hollow pipe, or may be a special-purpose container, such as a container used as an insulation in an electric appliance, for example, a tank of a circuit breaker. Similarly, the second segment 120 may be the same container as the first segment 110, or different material containers according to different mechanical strength requirements, flowing medium properties, testing environment, and other influencing factors, which is not limited by the present disclosure.
According to an embodiment of the present disclosure, the connection manner of the free end 111 and the cavity pipe having the flowing medium may be a fixed connection manner such as welding, bolting, and the like. The cavity conduit may be an extension conduit of a specific region to be evaluated of the enclosure, or an extension conduit of a region where a sample is located in the enclosure. The closed device works or tests under the protection of flowing media, the flowing media can be in the forms of gas, liquid and the like according to specific reference scenes, and sufficient flowing media are introduced according to the setting requirements of working condition parameters in the closed device, such as the requirements of internal pressure parameters.
In the disclosure, after the device for pressure maintaining fast replacing components and the sealing device are connected into an integral structure, the control valve 200 is opened, and the flowing medium is introduced into the sealing device, at this time, the flowing medium in the sealing device flows towards the free end 111 and fills the whole observable channel, that is, in the whole process of working or testing of the sealing device, the control valve 200 is in an open state, so that the flowing medium in the observable channel and the flowing medium in the sealing device are in a free flowing state, and the consistency of the testing environment is ensured. For example, the performance of the test article is evaluated by the component to be replaced, in a state in which a sufficient amount of the flowing medium is introduced into the closing device so that the observation channel is kept in agreement with the internal pressure of the closing device. The device for maintaining pressure and quickly replacing components in the mode disclosed by the invention is applied to a scene that the inner side of the component to be replaced is replaced under the pressure action of the flowing medium.
According to the embodiment of the present disclosure, the control valve 200 may be a ball valve, a butterfly valve, or other regulating valve, or may be an automatic valve, which is not limited by the present disclosure.
According to the embodiment of the present disclosure, the inner diameters of the first sectional part 110 and the second sectional part 120 are adapted to the inner diameter of the control valve 200, so that the observation field of the entire observable channel is not affected in the state that the control valve 200 is opened, and a tester can better evaluate a test article visually or by a test instrument. In some cases, such as when only being evaluated by a testing instrument, the inner diameters of the first and second segments 110 and 120 may be different, or the inner diameters of different portions of the first segment 110 may be different, and similarly, the inner diameters of different portions of the second segment 120 may be different, which is not limited by the present disclosure.
According to an embodiment of the present disclosure, an inner diameter of an opening structure of the groove 121 is larger than an inner diameter of the second segment 120. When the component to be replaced is fixed in the groove 121, the component to be replaced can cover the port of the second sectional piece 120, so that a larger observation range is provided for a tester, and an accurate evaluation result is convenient to obtain.
According to an embodiment of the present disclosure, a pressure relief valve 310 may be disposed at the medium inlet/outlet 300 and connected to the recovery device 500 through a connection pipe.
According to the embodiment of the present disclosure, the fixing member 400 may be a bolt or a hinge, when fixing the component to be replaced, the component to be replaced and the cover plate 700 may be sequentially fixed on the groove 121, and when the component to be replaced needs to be replaced, the bolt is loosened first and then the cover plate 700 is uncovered, so that the component to be replaced can be replaced; or the part to be replaced can be fixed in the groove 121 through a bolt, the cover plate 700 is fixed on the side wall of the opening of the groove 121 through a hinge, and when the part to be replaced needs to be replaced, the part to be replaced can be replaced by firstly uncovering the cover plate 700 and then loosening the bolt.
According to an embodiment of the present disclosure, the component to be replaced is a glass window or a test instrument.
According to the embodiment of the present disclosure, the device for pressure maintaining and fast replacing components needs to be connected to the cavity pipeline in a closed state and maintain the control valve 200 in an open state when in use. The test person can evaluate the operating state of the closure device or can evaluate internal test articles or flowing media or the like by means of the component to be replaced. When the inner side of the component to be replaced is contaminated during the evaluation process, which may affect the accuracy of the evaluation result, the control valve 200 is closed, the recovery device 500 is connected to the medium inlet/outlet 300, and the flowing medium in the observable channel between the control valve 200 and the component to be replaced is recovered and stored by the recovery device 500. Then, the relief valve 310 is opened to balance the internal and external pressures at both sides of the member to be replaced, and then the cover plate 700 is opened, the fixing member 400 is loosened, and the contaminated member to be replaced is replaced. After a new part to be replaced is replaced, the originally stored flowing medium is introduced into the observable channel by the connecting and recovering device 500 so as to keep the consistency of the flowing medium in the sealing device before and after the part to be replaced is replaced, thereby avoiding the influence of the change of the flowing medium on the evaluation result and ensuring the continuity and accuracy of the evaluation result. The test person may continue the test after opening the control valve 200.
The embodiment of the disclosure also provides a testing device, which comprises the device for replacing the pressure maintaining quick replacement component in any embodiment.
Fig. 2 shows a flow diagram of a method of pressure holding quick change component according to an embodiment of the present disclosure.
As shown in fig. 2, the method for pressure-holding rapid component replacement is applied to a testing device, wherein the testing device comprises a cavity pipeline with flowing media, and the method comprises the following steps S100-S300:
in step S100, the control valve is closed, the recovery device is connected, and the flowing medium in the observable channel between the control valve and the component to be replaced is stored in the recovery device;
in step S200, gas is introduced into the observable channel through the medium inlet and outlet until the internal pressure of the observable channel is balanced with the atmospheric pressure, the component to be replaced is replaced under the condition that the internal and external pressures of the observable channel are balanced, and the replaced component is fixed in the groove by using the fixing member again;
in step S300, the flow medium stored in the recovery device is filled into the observable channel.
According to the embodiment of the disclosure, the flowing medium in the observable channel between the component to be replaced and the control valve can be led into the recovery device by closing the control valve, and the flowing medium stored in the recovery device is led into the observable channel again after the component to be replaced is replaced, so that the influence of the change of the flowing medium on the evaluation result is avoided, and the continuity and the accuracy of the evaluation result are ensured.
According to an embodiment of the present disclosure, the component to be replaced is a glass window or a test instrument.
It should be noted that, specific technical details related to the method for pressure maintaining quick replacement of components may refer to the device for replacing pressure maintaining quick replacement components, and are not described herein again.
The embodiment of the disclosure also provides a circuit breaker arc observation method, which comprises the method for maintaining pressure and quickly replacing the components in the embodiment. Specifically, an arc extinguish chamber of the circuit breaker is connected with the observable channel, and a flowing medium in the circuit breaker is sulfur hexafluoride protective gas. When the breaker is subjected to the breaking test, the generated electric arc can react with sulfur hexafluoride gas and instantly generate high-temperature, high-pressure, high-corrosiveness and toxic substances which are sprayed on the inner side of the glass window to pollute the part to be replaced, and after the new glass window is replaced by using the method for replacing the part to be replaced in the embodiment, the breaking test is continued.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present disclosure is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.
Claims (9)
1. A pressure-maintaining quick component replacement device, comprising: the device comprises a main body part, a control valve, a medium inlet and outlet, a fixing part and a recovery device;
the main body piece includes: a first section and a second section;
the first sectional piece is provided with a free end, the other end of the first sectional piece is connected with the control valve, the control valve is connected with one end of the second sectional piece, and the other end of the second sectional piece is of an opening structure with a groove; the fixing piece detachably fixes the part to be replaced in the groove; the medium inlet and outlet is arranged on the second sectional piece and is connected with the recovery device through a pipeline;
an observable channel is formed between the part to be replaced and the free end; the free end is used for connecting a cavity pipeline with flowing media, and when the control valve is opened, the flowing media flows into the observable channel; when the control valve is closed, the flowing medium in the second sectional part is recovered to the recovery device for storage, and after the part to be replaced is replaced, the flowing medium stored in the recovery device is charged into the observable channel again.
2. The apparatus of claim 1, further comprising: a seal member;
the seals are disposed at respective connection points of the observable channels.
3. The device of claim 1, wherein the inner diameters of the first and second segments are adapted to the inner diameter of the control valve.
4. The device of claim 1, wherein an inner diameter of the opening structure of the groove is greater than an inner diameter of the second section.
5. The apparatus of claim 1, further comprising: a cover plate;
the cover plate is arranged on the groove and can fix the part to be replaced.
6. A test apparatus comprising a pressure maintaining quick change component apparatus according to any one of claims 1 to 5.
7. A method for pressure-holding quick change of parts, applied to the test device according to claim 6, wherein the test device comprises the cavity line with flowing medium, characterized by comprising the following steps:
closing the control valve, connecting the recovery device, and storing the flowing medium in the observable channel between the control valve and the part to be replaced in the recovery device;
introducing gas into the observable channel from the medium inlet and outlet until the internal pressure of the observable channel is balanced with the atmospheric pressure, replacing the part to be replaced under the condition that the internal pressure and the external pressure of the observable channel are balanced, and fixing the replaced part to be replaced in the groove by using the fixing piece again;
and filling the flowing medium stored in the recovery device into the observable channel.
8. The method of claim 7, wherein the component to be replaced is a glass window or a test instrument.
9. A circuit breaker arc observation method comprising the method of pressure maintaining quick change components of claim 7.
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| CN202010254030.0A CN111257748B (en) | 2020-04-02 | 2020-04-02 | Device for pressure maintaining and quick part replacement, testing device and method |
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| CN202010254030.0A CN111257748B (en) | 2020-04-02 | 2020-04-02 | Device for pressure maintaining and quick part replacement, testing device and method |
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| CN111257748B true CN111257748B (en) | 2022-05-20 |
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| US4589375A (en) * | 1983-04-07 | 1986-05-20 | Commissariat A L'energie Atomique | Steam generator for a liquid metal-cooled reactor |
| CN2245694Y (en) * | 1996-01-23 | 1997-01-22 | 赵鑫发 | Gate valve |
| CN1273336A (en) * | 1999-05-06 | 2000-11-15 | 英国氧气集团有限公司 | Valve |
| CN202544668U (en) * | 2012-03-26 | 2012-11-21 | 中国船舶重工集团公司第七一九研究所 | Double-layer observation window |
| CN106002351A (en) * | 2016-06-21 | 2016-10-12 | 中达电机股份有限公司 | Rapid bottom plate replacing and automatic positioning device for motor seven-hole drill drilling |
| CN108183382A (en) * | 2018-01-25 | 2018-06-19 | 中国科学院光电研究院 | The more changing device and replacing options of excimer laser window |
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2020
- 2020-04-02 CN CN202010254030.0A patent/CN111257748B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589375A (en) * | 1983-04-07 | 1986-05-20 | Commissariat A L'energie Atomique | Steam generator for a liquid metal-cooled reactor |
| CN2245694Y (en) * | 1996-01-23 | 1997-01-22 | 赵鑫发 | Gate valve |
| CN1273336A (en) * | 1999-05-06 | 2000-11-15 | 英国氧气集团有限公司 | Valve |
| CN202544668U (en) * | 2012-03-26 | 2012-11-21 | 中国船舶重工集团公司第七一九研究所 | Double-layer observation window |
| CN106002351A (en) * | 2016-06-21 | 2016-10-12 | 中达电机股份有限公司 | Rapid bottom plate replacing and automatic positioning device for motor seven-hole drill drilling |
| CN108183382A (en) * | 2018-01-25 | 2018-06-19 | 中国科学院光电研究院 | The more changing device and replacing options of excimer laser window |
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| CN111257748A (en) | 2020-06-09 |
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