CN111272360B - Air pipe air tightness inspection device for defense area and using method - Google Patents
Air pipe air tightness inspection device for defense area and using method Download PDFInfo
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- CN111272360B CN111272360B CN202010245172.0A CN202010245172A CN111272360B CN 111272360 B CN111272360 B CN 111272360B CN 202010245172 A CN202010245172 A CN 202010245172A CN 111272360 B CN111272360 B CN 111272360B
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a defense-collecting area air pipe air tightness inspection device and a use method thereof. The air tightness testing device for the air pipes in the defense area utilizes the characteristic that air can be compressed, adopts water or other liquid to seal the cabinet body, the connecting pipes and the air pipes and compress the air in the air pipes to a certain degree, and then reflects whether the air pressure is stable or not by means of a pressure meter to judge whether the air pipes have good air tightness or not. The device has the advantages of simple structure, convenient operation and low manufacturing cost, does not need to inspect the airtight air pipe per se, and can obviously improve the efficiency and the accuracy of the airtight air pipe airtightness inspection.
Description
Technical Field
The invention relates to the technical field of ship inspection, in particular to a defense area air pipe air tightness inspection device and a using method thereof.
Background
The collective defense area (collective defense area for short) is a three-proofing shelter built in the main hull of a ship or an island type building. The main function of the defense collecting area is to isolate the defense collecting area from the outside by taking protective measures and ventilate the defense collecting area and the outside by means of a nuclear biochemical filtering system so as to prevent nuclear biochemical substances such as toxic gas, chemical organisms, radioactive suspended particles and the like from entering along with air, protect personnel from being injured in a nuclear biochemical environment, ensure the personal safety of the personnel in the defense collecting area, prevent the nuclear biochemical substances from polluting a ship body and equipment and keep the safety and communication smoothness of ship equipment. In the construction process of the defense area, all parts of the defense area need to be subjected to airtightness inspection so as to meet the requirement that the airtightness of the defense area conforms to the defense area requirement and ensure the personal safety of personnel in the defense area.
At present, a method of compressed air blowing and soap water spraying leakage detection is generally adopted for air conditioners and ventilation air pipes in defense areas to detect air tightness. Because the air pressure of the airtight air pipe is generally within 2000Pa and is small, the method has the defects of inaccurate leakage detection, incapability of detecting a small amount of leakage and incapability of well detecting the intermittent air leakage. In addition, because visual observation and inspection are needed, the inspection difficulty is higher or the inspection cannot be completed for the air pipes with longer length and complex shapes.
Disclosure of Invention
The invention aims to provide a device for testing the air tightness of an air pipe in a defense area and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
on the one hand, provide a district tuber pipe gas tightness verifying attachment is defended to collection, including the cabinet body, water injection pipe, connecting pipe and manometer, the water injection pipe reaches the connecting pipe all with the internal portion of cabinet intercommunication, the one end and the airtight tuber pipe selectivity intercommunication of connecting pipe, the manometer is used for showing the atmospheric pressure of the internal portion of cabinet, through to the internal water injection of cabinet will the air escape of the internal portion of cabinet to the connecting pipe reaches inside the airtight tuber pipe.
As a preferable scheme of the present invention, one end of the water injection pipe is connected to the lower portion of the cabinet body, and one end of the connection pipe is connected to the upper portion of the cabinet body.
As a preferable scheme of the invention, one end of the water injection pipe, which is far away from the cabinet body, is higher than the top of the cabinet body and is provided with a funnel.
As a preferable scheme of the invention, the bottom of the cabinet body is also provided with a valve and a plurality of supporting legs.
In a preferred embodiment of the present invention, the connection tube is a flexible hose.
As a preferable scheme of the invention, the water injection pipe is L-shaped and comprises a first section and a second section, wherein the first section is horizontally arranged, the second section is vertically arranged, and the first section is connected with the side surface of the cabinet body.
As a preferable scheme of the present invention, the second segment is a transparent tube, and a scale is provided on a surface of the second segment.
As a preferable scheme of the invention, the cabinet body is in a cubic shape and is formed by welding a plurality of plates.
On the other hand, the use method of the air pipe air tightness inspection device for the defense area comprises the following steps;
s10, sealing two ends of an airtight air pipe to enable a connecting pipe to be communicated with the airtight air pipe;
s20, enabling a valve at the bottom of the cabinet body to be kept in a closed state, and injecting water into the cabinet body through a water injection pipe;
s30, stopping injecting water, and observing whether the reading of the pressure gauge changes or not after the liquid level is stable;
and S40, opening the valve after the inspection is finished, discharging water in the cabinet body, and detaching the connecting pipe from the airtight air pipe.
As a preferable aspect of the present invention, in step S30, the reading of the pressure gauge is continuously observed for 15 minutes after the liquid level is stabilized.
The invention has the beneficial effects that:
the air tightness testing device for the air pipes in the defense area utilizes the characteristic that air can be compressed, adopts water or other liquid to seal the cabinet body, the connecting pipes and the air pipes and compress the air in the air pipes to a certain degree, and then reflects whether the air pressure is stable or not by means of a pressure meter to judge whether the air pipes have good air tightness or not. The device has the advantages of simple structure, convenient operation and low manufacturing cost, does not need to inspect the airtight air pipe per se, and can obviously improve the efficiency and the accuracy of the airtight air pipe airtightness inspection.
Drawings
Fig. 1 is a schematic perspective view of an air duct airtightness testing device for a defense area according to an embodiment of the present invention.
In the figure:
1. a cabinet body; 2. a water injection pipe; 21. a first segment; 22. a second section; 3. a connecting pipe; 4. a pressure gauge; 5. a funnel; 6. supporting legs; 7. and (4) a valve.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1, the air tightness inspection device for the air duct in the defense area according to the embodiment of the present invention includes a cabinet 1, a water injection pipe 2, a connection pipe 3, and a pressure gauge 4, wherein the water injection pipe 2 and the connection pipe 3 are both communicated with the inside of the cabinet 1, one end of the connection pipe 3 is selectively communicated with the air-tight air duct (not shown in the figure), and the pressure gauge 4 is configured to display the air pressure inside the cabinet 1, and discharge the air inside the cabinet 1 to the connection pipe 3 and the inside of the air-tight air duct by injecting water into the cabinet 1.
The air tightness testing device of the air duct in the defense area of the embodiment utilizes the characteristic that air can be compressed, adopts water or other liquid to seal the cabinet body 1, the connecting pipe 3 and the air in the air duct and compress the air in the air duct to a certain degree, and then reflects whether the air pressure is stable by means of the pressure gauge 4 to judge whether the air duct has good air tightness. The device has the advantages of simple structure, convenient operation and low manufacturing cost, does not need to inspect the airtight air pipe per se, and can obviously improve the efficiency and the accuracy of the airtight air pipe airtightness inspection.
In this embodiment, water is injected into the cabinet 1, and other kinds of liquid may be used, and the higher the density of the liquid is, the higher the pressure that can be reached inside the cabinet 1 is.
Preferably, one end of the water injection pipe 2 is connected with the lower part of the cabinet body 1, and one end of the connecting pipe 3 is connected with the upper part of the cabinet body 1. The device utilizes the water column with a certain height formed in the water injection pipe 2 to seal the cabinet body 1, and the pressure generated by the water column slightly compresses the air in the cabinet body 1, the connecting pipe 3 and the airtight air pipe. When the water is injected and the liquid level is stable, a liquid level A is formed inside the cabinet body 1, a liquid level B is formed inside the water injection pipe 2, and the pressure intensity of the water column height corresponding to the height difference between the liquid level B and the liquid level A plus the external atmospheric pressure intensity is equal to the air pressure intensity inside the cabinet body 1, namely the pressure intensity displayed by the pressure gauge 4. If the airtight air pipe has a poor sealing part, after water injection is stopped, the reading of the pressure gauge 4 tends to decline due to gas leakage, the height of the liquid level B also declines, and whether the airtightness of the airtight air pipe is good can be intuitively judged according to whether the reading of the pressure gauge 4 changes. Connect water injection pipe 2 in the lower part of the cabinet body 1, can realize the liquid seal of water injection pipe 2 more fast, reduce the water injection volume. One end of the connecting pipe 3 is connected with the upper part of the cabinet body 1, so that the water in the cabinet body 1 can not flow into the connecting pipe 3 under the condition of more water injection amount.
Further, the one end that the cabinet body 1 was kept away from to water injection pipe 2 highly is higher than the top of the cabinet body 1 and is provided with funnel 5, because the atmospheric pressure of the cabinet body 1 inside is highly relevant with water column among the water injection pipe 2, sets up the water injection end of water injection pipe 2 higher, can obtain higher atmospheric pressure, and higher atmospheric pressure can bring higher detectivity, and funnel 5 makes the water injection operation more convenient.
Preferably, the bottom of the cabinet 1 is further provided with a plurality of support legs 6 and a valve 7. After the inspection is finished, the valve 7 is opened, water inside the cabinet body 1 can be emptied, the carrying of the device is facilitated, the plurality of supporting legs 6 provide space for the arrangement of the valve 7, and the bottom surface of the cabinet body 1 can be prevented from being abraded.
Preferably, the connection tube 3 is a flexible hose. Because the connecting pipe 3 needs to be communicated with the airtight air pipes, and the heights and the directions of various airtight air pipes are possibly greatly different, the connecting pipe 3 in the telescopic hose form is adopted, so that the connecting pipe 3 is conveniently connected with the airtight air pipes.
In some embodiments, the water injection pipe 2 is L-shaped, and includes a first section 21 horizontally disposed and a second section 22 vertically disposed, and the first section 21 is connected with a side of the cabinet 1. Since the pressure generated by the water column is only related to the height of the water column in the vertical direction, the second segment 22, which is vertically arranged, enables the length of the water injection pipe 2 to be set shorter, which saves more material and makes the structure of the device more compact.
Further, the second section 22 is a transparent tube, and the surface of the second section 22 is provided with scales. Therefore, whether the air-tight air pipe has an air leakage point can be judged by observing whether the height of the liquid level in the second section 22 changes, but the method has larger error and can be used as an auxiliary inspection means.
Preferably, the cabinet body 1 is in a cubic shape, and the cabinet body 1 is formed by welding a plurality of plates, so that the cost is low.
The embodiment of the invention also provides a using method of the air pipe air tightness testing device of the defense area, which comprises the following steps;
s10, sealing two ends of the airtight air pipe to enable the connecting pipe 3 to be communicated with the airtight air pipe;
s20, keeping a valve 7 at the bottom of the cabinet body 1 in a closed state, and injecting water into the cabinet body 1 through a water injection pipe 2;
s30, stopping injecting water, and observing whether the reading of the pressure gauge 4 changes or not after the liquid level is stable;
s40, after the inspection is finished, the valve 7 is opened to discharge water in the cabinet body 1, and the connecting pipe 3 is detached from the airtight air pipe.
The whole operation process is very simple, and the inspection result is directly displayed through the reading of the pressure gauge 4, so that the method is visual, accurate and efficient.
Further, in step S30, after the liquid level is stabilized, the reading of the pressure gauge 4 is continuously observed for 15 minutes, so as to effectively check whether the airtight air pipe has intermittent air leakage.
Reference throughout this specification to the description of the terms "preferred," "further," or the like, as used in describing preferred embodiments of the present invention, means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above examples are only intended to illustrate the details of the invention, which is not limited to the above details, i.e. it is not intended that the invention must be implemented in such detail. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (7)
1. The utility model provides a district tuber pipe gas tightness verifying attachment is defended to collection, its characterized in that, includes the cabinet body, water injection pipe, connecting pipe and manometer, the water injection pipe reaches the connecting pipe all with the internal portion intercommunication of cabinet, the one end and the airtight tuber pipe selectivity intercommunication of connecting pipe, the manometer is used for showing the atmospheric pressure of the internal portion of cabinet, through to the internal water injection of cabinet will the air escape of the internal portion of cabinet to the connecting pipe reaches inside the airtight tuber pipe, the water injection pipe is the L type, the first segmentation that sets up including the level and the second segmentation of vertical setting, the first segmentation with the side of the cabinet body is connected, the second segmentation is the hyaline tube, second segmentation surface is provided with the scale, the bottom of the cabinet body is provided with valve and a plurality of supporting legs.
2. The air tightness detection device for the air ducts of the defense area according to claim 1, wherein one end of the water injection pipe is connected with the lower part of the cabinet body, and one end of the connecting pipe is connected with the upper part of the cabinet body.
3. The air tightness detection device for the air pipes in the defense area according to claim 2, wherein one end of the water injection pipe, which is far away from the cabinet body, is higher than the top of the cabinet body and is provided with a funnel.
4. The air tightness test device of the air pipe of the centralized defense area according to claim 1, characterized in that the connecting pipe is a telescopic hose.
5. The air pipe airtightness testing device for the defense area according to claim 1, wherein the cabinet body is in a cubic shape and is formed by welding a plurality of plates.
6. The use method of the air tightness test device of the air pipe of the centralized defense area of claim 1 is characterized by comprising the following steps;
s10, sealing two ends of an airtight air pipe to enable a connecting pipe to be communicated with the airtight air pipe;
s20, enabling a valve at the bottom of the cabinet body to be kept in a closed state, and injecting water into the cabinet body through a water injection pipe;
s30, stopping injecting water, and observing whether the reading of the pressure gauge changes or not after the liquid level is stable;
and S40, opening the valve after the inspection is finished, discharging water in the cabinet body, and detaching the connecting pipe from the airtight air pipe.
7. The use method of the air tightness test device of the air pipe of the defense area according to the claim 6, characterized in that in the step S30, the reading of the pressure gauge is continuously observed for 15 minutes after the liquid level is stabilized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010245172.0A CN111272360B (en) | 2020-03-31 | 2020-03-31 | Air pipe air tightness inspection device for defense area and using method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010245172.0A CN111272360B (en) | 2020-03-31 | 2020-03-31 | Air pipe air tightness inspection device for defense area and using method |
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| CN111272360A CN111272360A (en) | 2020-06-12 |
| CN111272360B true CN111272360B (en) | 2022-02-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111829734A (en) * | 2020-07-15 | 2020-10-27 | 广船国际有限公司 | Collection defence area tuber pipe gas tightness verifying attachment |
| CN114354080B (en) * | 2022-03-18 | 2022-06-03 | 章丘市鑫东铸造机械有限公司 | Intercooler air chamber gas tightness detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016106213A1 (en) * | 2014-12-23 | 2016-06-30 | Shell Oil Company | Pressure testing method and apparatus |
| CN106813880B (en) * | 2017-03-31 | 2019-01-08 | 中国核动力研究设计院 | Equipment leakage checking test and method under pressure environment maintenance condition |
| CN108716970A (en) * | 2018-05-31 | 2018-10-30 | 广船国际有限公司 | A kind of ship collection defence area air tight test method |
| CN109297637A (en) * | 2018-11-01 | 2019-02-01 | 金华华鼎科技有限公司 | Water pressure test machine water injection system |
| CN110779660A (en) * | 2019-11-08 | 2020-02-11 | 杭州应敏科技有限公司 | Cable protection pipe sealing test device |
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