CN214893929U - Oil tank leakage detection device - Google Patents
Oil tank leakage detection device Download PDFInfo
- Publication number
- CN214893929U CN214893929U CN202120726860.9U CN202120726860U CN214893929U CN 214893929 U CN214893929 U CN 214893929U CN 202120726860 U CN202120726860 U CN 202120726860U CN 214893929 U CN214893929 U CN 214893929U
- Authority
- CN
- China
- Prior art keywords
- pressure
- testing unit
- direct
- valve
- fixedly communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses an oil tank leakage detection device, a direct pressure test unit pipeline is communicated with one end of a pressure difference test unit, the direct pressure test unit comprises a pressure gauge, a pressure reducing valve and a main valve which are sequentially communicated from left to right through pipelines, and the pipeline at the left end of the direct pressure test unit is fixedly communicated with a tank body to be tested; the pressure difference testing unit comprises a switching valve and a pressure difference meter which are fixedly communicated with the branch pipeline from left to right, and the right end of the branch pipeline where the pressure difference testing unit is located is fixedly communicated with the standard container; the technical method adopted by the scheme is that the direct pressure testing unit and the differential pressure testing unit are uniformly combined in a set of testing system, and the direct pressure testing unit and the differential pressure testing unit are applied to each device in the direct pressure testing unit when differential pressure testing is carried out, so that the operation efficiency is improved, and the uniformity of accuracy and practicability is realized; the detection mode that the scheme adopted can be applied to the leak detection of all kinds of sealed containers, has extensive suitability.
Description
Technical Field
The utility model relates to a detection device technical field specifically is an oil tank leakage detection device.
Background
The tightness detection is a necessary testing process in the production of the oil tank, generally comprises a direct pressure type (bubble method, dipping method), a flow method, a pressure difference method, an inert gas method, a penetration imaging method, a brightness method and the like, and two commonly used methods are a direct pressure method test and a pressure difference method test; the direct method is to fill air with specified pressure into the box body, then close the air source, directly observe whether the box body has pressure drop to judge whether leakage exists, and find leakage points by matching with a bubble method or an immersion method, so that the direct method has the advantage of directly finding the leakage points; the differential pressure principle is that the tested oil tank and the standard oil tank are simultaneously inflated, the pressure of the standard container is taken as a reference, a differential pressure gauge is used for detecting that no differential pressure exists between the two oil tanks, leakage exists if the differential pressure exists, and the sensitivity of leakage detection by the differential pressure method is higher;
in the prior art, two methods are independently applied, the two methods have respective advantages and disadvantages, and the prior art lacks a device which integrates the advantages of the two testing methods together and can detect the leakage of various closed containers, so that the detection accuracy and the practicability cannot be integrated.
Disclosure of Invention
An object of the utility model is to provide an oil tank leak testing device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a fuel tank leakage detection device comprises a tank body to be detected and a standard container, wherein a direct pressure test unit is fixedly communicated with the tank body to be detected, a pipeline of the direct pressure test unit is communicated with one end of a differential pressure test unit, and the other end of the differential pressure test unit is fixedly communicated with the standard container;
the direct pressure testing unit comprises a pressure gauge, a pressure reducing valve and a main valve which are sequentially communicated from left to right through pipelines, and the pipeline at the left end of the direct pressure testing unit is fixedly communicated with the box body to be tested;
the pressure difference testing unit is arranged on a branch pipeline of the direct pressure testing unit and comprises a switching valve and a pressure difference meter which are fixedly communicated with the branch pipeline from left to right, and the right end of the branch pipeline where the pressure difference testing unit is located is fixedly communicated with the standard container.
Preferably, a four-way pipe fitting is arranged at the intersection of the direct pressure testing unit, the differential pressure testing unit and the pipeline where the box body to be tested is located.
Preferably, the reserved end of the four-way pipe fitting is fixedly communicated with a release valve.
Preferably, a stop valve is fixedly communicated with a pipeline between the pressure gauge and the pressure reducing valve.
Preferably, the two ends of the differential pressure gauge are connected with a differential pressure valve in parallel.
Compared with the prior art, this scheme has designed an oil tank leakage detection device, has following beneficial effect:
(1) the technical method adopted by the scheme combines the direct pressure testing unit and the differential pressure testing unit in a set of testing system in a unified manner, and the direct pressure testing unit and the differential pressure testing unit are applied to all devices in the direct pressure testing unit when differential pressure testing is carried out, so that the operation efficiency is improved, and the unification of accuracy and practicability is realized.
(2) The detection mode that the scheme adopted can be applied to the leak detection of all kinds of sealed containers, has extensive suitability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises a main valve 1, a pressure reducing valve 2, a stop valve 3, a pressure gauge 4, a vent valve 5, a differential pressure gauge 6, a differential pressure valve 7, a switching valve 8, a standard container 9 and a box body to be tested 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides an oil tank leakage detection device, includes box 10 and the standard container 9 that awaits measuring, its characterized in that: the box body to be tested 10 is fixedly communicated with a direct pressure testing unit, the direct pressure testing unit is communicated with one end of a differential pressure testing unit through a pipeline, and the other end of the differential pressure testing unit is fixedly communicated with the standard container 9.
The direct pressure testing unit and the differential pressure testing unit are combined in one set of testing system in a unified mode, and the device is applied to each device in the direct pressure testing unit when differential pressure testing is conducted, so that the operation efficiency is improved, and the unification of accuracy and practicability is achieved.
The direct pressure testing unit comprises a pressure gauge 4, a pressure reducing valve 2 and a main valve 1 which are sequentially communicated from left to right through pipelines, and the pipeline at the left end of the direct pressure testing unit is fixedly communicated with the box body 10 to be tested; the main valve 1 is used for supplying an air source, and the air source is decompressed by the decompression valve 2 and then is supplied to the direct pressure testing unit and the differential pressure testing unit.
The differential pressure test unit is arranged on a branch pipeline of the direct pressure test unit, the differential pressure test unit comprises a switching valve 8 and a differential pressure gauge 6 which are fixedly communicated on the branch pipeline from left to right, and the right end of the branch pipeline where the differential pressure test unit is located is fixedly communicated on a standard container 9.
The switching valve 8 is used for switching between a direct pressure method test and a differential pressure method test, and when the differential pressure method test is required, the switching valve 8 is opened.
A four-way pipe fitting is arranged at the intersection of the direct pressure testing unit, the differential pressure testing unit and the pipeline where the box body 10 to be tested is located; the reserved end of the four-way pipe fitting is fixedly communicated with an air release valve 5, the four-way pipe fitting is connected with the air release valve 5, the direct pressure testing unit, the differential pressure testing unit and the box body 10 to be tested, and the air pressure in the device is exhausted by opening the air release valve 5 after the detection is finished; a stop valve 3 is fixedly communicated with a pipeline between the pressure gauge 4 and the pressure reducing valve 2; stop valve 3 is in the closed condition in the testing process, and the effect prevents that relief pressure valve 2 gas leakage from influencing the detection precision.
Two ends of the differential pressure gauge 6 are connected with a differential pressure valve 7 in parallel, and the differential pressure valve 7 is used for controlling whether the differential pressure gauge 6 is connected to a branch pipeline where the differential pressure test unit is located or not, so that the differential pressure valve 7 is in an open state when the differential pressure gauge 6 is not detected due to damage caused by overlarge differential pressure.
The use process comprises the following steps:
(1) receiving a box body 10 to be tested, confirming that the air release valve 5, the stop valve 3 and the main valve 1 are all in a closed state, and when testing by adopting a differential pressure method, opening the switching valve 8 and confirming that the differential pressure valve 7 is in an open state;
(2) connecting an air source into a main valve 1, opening the main valve 1, and adjusting a pressure reducing valve 2 to a required pressure if the indication of a pressure gauge 4 is in accordance with the specified pressure;
(3) opening the stop valve 3 to start simultaneously inflating the box body 10 to be detected and the standard container 9, observing the pressure gauge 4, closing the main valve 1 after the pressure reaches the detection pressure, and then closing the stop valve 3;
(4) at the moment, the switching valve 8 is in an open state, the pressure of the box body 10 to be measured is the same as that of the standard container 9, and the pressure difference meter 6 has no pressure difference indication; during detection, the pressure difference valve 7 is closed, the passage of the two boxes is cut off, if the box 10 to be detected leaks, the pressure of the box is slightly reduced, the pressure of the standard container is unchanged, and therefore the pressure difference meter 6 displays the pressure difference.
(5) When the direct method test is carried out, the switching valve 8 is closed, the standard container 10 and the pressure difference meter 6 do not work, only the box body 10 to be tested is inflated, the stop valve 3 of the main valve 1 is closed, and whether the pressure meter 4 is depressurized or not is directly observed to judge whether leakage exists or not; and judging the position of the leakage point by matching with a bubble method and an immersion method.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides an oil tank leakage detection device, includes box (10) and standard container (9) that await measuring, its characterized in that: a direct pressure testing unit is fixedly communicated with the box body (10) to be tested, a pipeline of the direct pressure testing unit is communicated with one end of a differential pressure testing unit, and the other end of the differential pressure testing unit is fixedly communicated with a standard container (9);
the direct pressure testing unit comprises a pressure gauge (4), a pressure reducing valve (2) and a main valve (1) which are sequentially communicated from left to right through pipelines, and the pipeline at the left end of the direct pressure testing unit is fixedly communicated with a box body (10) to be tested;
the pressure difference testing unit is arranged on a branch pipeline of the direct pressure testing unit and comprises a switching valve (8) and a pressure difference meter (6) which are fixedly communicated with the branch pipeline from left to right, and the right end of the branch pipeline where the pressure difference testing unit is located is fixedly communicated with a standard container (9).
2. A fuel tank leakage detecting device according to claim 1, wherein: and a four-way pipe fitting is arranged at the intersection of the direct pressure testing unit, the differential pressure testing unit and the pipeline where the box body (10) to be tested is located.
3. A fuel tank leakage detecting device according to claim 2, wherein: the reserved end of the four-way pipe fitting is fixedly communicated with a release valve (5).
4. A fuel tank leakage detecting device according to claim 1, wherein: and a stop valve (3) is fixedly communicated on a pipeline between the pressure gauge (4) and the pressure reducing valve (2).
5. A fuel tank leakage detecting device according to claim 1, wherein: and two ends of the differential pressure gauge (6) are connected with a differential pressure valve (7) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120726860.9U CN214893929U (en) | 2021-04-11 | 2021-04-11 | Oil tank leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120726860.9U CN214893929U (en) | 2021-04-11 | 2021-04-11 | Oil tank leakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214893929U true CN214893929U (en) | 2021-11-26 |
Family
ID=78886420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120726860.9U Active CN214893929U (en) | 2021-04-11 | 2021-04-11 | Oil tank leakage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214893929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200807A (en) * | 2021-04-11 | 2022-10-18 | 大连小松雄连机械制造有限公司 | Oil tank leakage detection device |
-
2021
- 2021-04-11 CN CN202120726860.9U patent/CN214893929U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200807A (en) * | 2021-04-11 | 2022-10-18 | 大连小松雄连机械制造有限公司 | Oil tank leakage detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109540408A (en) | Air tightness detection method and device | |
| CN107024324B (en) | Helium dry detection system and method for complete machine tightness of diaphragm gas meter | |
| CN107340101A (en) | A kind of sealing device gas tiny leakage evaluating apparatus and method | |
| CN104236826A (en) | Bagged product tightness detection device and method | |
| CN107907273B (en) | A kind of partially sealed outer surface air-tightness detection method of product | |
| CN110987324A (en) | Fuel cell air tightness testing device and testing method | |
| KR20110056880A (en) | Method and apparatus for airtight inspection using equalization | |
| CN214893929U (en) | Oil tank leakage detection device | |
| EP1846742A2 (en) | Fluid containment element leak detection apparatus and method | |
| CN220322645U (en) | Tightness test system | |
| CN109916568A (en) | Electric machine controller sealing propertytest system, device and method | |
| CN206362506U (en) | The anhydrous pressure testing device of ball valve | |
| CN115200807A (en) | Oil tank leakage detection device | |
| CN208223754U (en) | Detection tool for tightness of intake manifold | |
| JP3062530B2 (en) | Leak detection method and leak detection device | |
| CN115265956A (en) | Pressure system air tightness leakage detection device and method | |
| JP2001033343A (en) | Method and device for leak test | |
| JP2004085254A (en) | Leakage inspection method and equipment | |
| CN212432449U (en) | Automatic leakage detection device for fuel cell stack | |
| CN204269324U (en) | A kind of vacuum decay method test cigarette package body leakage tester | |
| CN112611527A (en) | Battery leakage detection device and method | |
| CN110514433A (en) | A kind of automatic control test bed equipment detecting the full performance of valve | |
| CN208833453U (en) | A kind of electromagnetism valve body air-tightness detection device | |
| CN109163859A (en) | A kind of automation equipment and method of quick testing product leakproofness | |
| CN219244934U (en) | Device for detecting tightness of battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |