CN215448356U - Sealing performance detection device for sealing joint - Google Patents
Sealing performance detection device for sealing joint Download PDFInfo
- Publication number
- CN215448356U CN215448356U CN202121568266.8U CN202121568266U CN215448356U CN 215448356 U CN215448356 U CN 215448356U CN 202121568266 U CN202121568266 U CN 202121568266U CN 215448356 U CN215448356 U CN 215448356U
- Authority
- CN
- China
- Prior art keywords
- sealing
- helium
- joint
- detection
- detection branch
- 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 a sealing performance detection device of a sealing joint, and belongs to the field of sealing performance detection. It includes: the helium detector comprises a vacuumizing unit and a helium detection unit; the detection branch pipes are communicated with the helium detector through multi-way joints, and the detection branch pipes are fixedly connected with to-be-detected sealing joints; and the helium storage cavity is detachably sleeved on the detection branch pipe and communicated with the helium supply device, and the to-be-detected sealing joint is positioned in the helium storage cavity. The utility model solves the problem that the existing tightness detection device can not detect sealing joints with different sizes and types.
Description
Technical Field
The utility model relates to the field of tightness detection devices, in particular to a tightness detection device of a surface sealing joint.
Background
With the wide application of the surface sealing joint and the valve, products of different brands are more and more, and the surface sealing joint and the gasket of different products are different in material process, so that the sealing effect is different. Under the conditions of high efficiency, cost saving and high utilization rate, the method has better significance for simultaneously detecting the sealing performance of the surface sealing joints with different sizes or the same size and different brands.
Helium has the characteristics of small molecular weight and viscosity coefficient and easiness in diffusion through a leak hole, and helium penetration is good, and the helium detection by a vacuum method is a tightness detection method for detecting whether a detected product is qualified or not by vacuumizing the interior of the detected product and spraying certain helium from the exterior of the detected product. Existing vacuum helium testing equipment can only test one size of sealed joint. It is not possible to detect face seal structures of different sizes or of different brands of different sizes. Therefore, it is desirable to provide a testing instrument capable of testing the sealing performance of the face seal joints with different sizes or the same size and different models.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the existing tightness detection device cannot detect sealing joints with different sizes and types.
In order to solve the technical problems, the utility model provides the following technical scheme:
a leak detection apparatus for sealing a joint, comprising: the helium detector comprises a vacuumizing unit and a helium detection unit; the detection branch pipes are communicated with the helium detector through multi-way joints, and the detection branch pipes are fixedly connected with to-be-detected sealing joints; and the helium storage cavity is detachably sleeved on the detection branch pipe and communicated with the helium supply device, and the to-be-detected sealing joint is positioned in the helium storage cavity.
In some embodiments of the present invention, the helium storage chamber has an air inlet and an air outlet, the air inlet is communicated with the helium supply device, the air outlet is communicated with the exhaust device or the recovery device, and the air inlet and the air outlet are respectively provided with a switch valve.
In some embodiments of the present invention, the helium gas storage chamber is formed by a rubber sleeve having an opening at one side, and a tightening band is disposed at the opening side of the rubber sleeve and used for tightening the opening portion of the rubber sleeve to make the opening portion of the rubber sleeve be in sealed connection with the detection branch pipe.
In some embodiments of the present invention, the to-be-detected sealing joint is welded to the detection branch pipe.
In some embodiments of the present invention, the multi-way joint is a four-way joint, three detection branch pipes are provided, and the pipe diameters of the three detection branch pipes are different.
In some embodiments of the present invention, a first switch valve is further disposed on the detection branch pipe, and the first switch valve is located between the to-be-detected sealing joint and the multi-way joint.
In some embodiments of the present invention, the detection branch pipe is a pipe with an open end and a closed end.
In some embodiments of the present invention, the detection branch pipe is a bidirectional open pipeline, and the detection branch pipe further includes a second switch valve, where the second switch valve is located between the to-be-detected sealing joint and the free end of the detection branch pipe.
In some embodiments of the utility model, the sealing joint to be tested comprises: the first joint body and the second joint body are oppositely arranged; a sealing gasket is arranged between the first connector body and the second connector body, an internal thread nut is sleeved on the first connector body, an external thread nut is sleeved on the second connector body, and the internal thread nut is in threaded connection with the external thread nut.
Compared with the prior art, the technical scheme of the utility model has the following technical effects:
when the tightness detection device provided by the utility model is used for performing tightness detection on a sealing joint to be detected, firstly, a vacuumizing unit of a helium detector is used for vacuumizing the whole pipeline, when the vacuum degree in the pipeline meets the requirement, helium is conveyed to a helium storage cavity through a helium supply device and passes through the sealing joint to be detected, if the sealing joint to be detected is provided with a leakage port, the helium enters the detection branch pipe through the leakage port, and a helium detection unit of the helium detector detects the helium so as to determine the tightness of the sealing joint to be detected. The tightness detection device is connected with the detection branch pipes with different sizes through the multi-way joint, so that tightness detection can be performed on the sealing joints with different sizes; meanwhile, a helium storage cavity detachably sleeved on the detection branch pipe is adopted to input pressure helium to the part of the sealing joint to be detected, so that the detection mode is flexible, and the detection efficiency is high; because this helium stores the chamber and can cup joint on different detection branch pipes, adopt one set of helium storage chamber can, make this sealed detection device's cost lower.
Drawings
The objects and advantages of the present invention will be understood by the following detailed description of the preferred embodiments of the utility model, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a system diagram of one embodiment of a leak detection device for a sealed joint according to the present invention;
FIG. 2 is a schematic structural view of one embodiment of a helium storage chamber of the leak detection apparatus of the sealing joint of the present invention;
fig. 3 is a schematic structural diagram of a to-be-tested sealing joint according to the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 shows a specific embodiment of a device for testing the sealing performance of a sealing joint (hereinafter, referred to as a sealing performance testing device) according to the present invention, which is used for sampling the sealing performance of a sealing joint, such as a face sealing joint.
This leakproofness detection device includes: a leak detection apparatus for sealing a joint, comprising: the helium detector 1 comprises a vacuumizing unit 1a and a helium gas detection unit 1 b; the device comprises at least two detection branch pipes 6, wherein the detection branch pipes 6 are communicated with the helium detector 1 through multi-way joints 5, and the detection branch pipes 6 are fixedly connected with to-be-detected sealing joints 8; and the helium storage cavity 10 is detachably sleeved on the detection branch pipe 6 and communicated with a helium supply device, and the to-be-detected sealing joint 8 is positioned in the helium storage cavity 10.
When the tightness detection device is used for detecting the tightness of the sealing joint 8 to be detected, firstly, the whole pipeline is vacuumized through the vacuumizing unit 1a of the helium detector 1, helium is conveyed to the helium storage cavity 10 through the helium supply device after the vacuum degree in the pipeline meets the requirement, so that the helium passes through the sealing joint 8 to be detected, if the sealing joint 8 to be detected is provided with a leakage port, the helium enters the detection branch pipe 6 through the leakage port, and the helium is detected through the helium detection unit 1b of the helium detector 1, so that the tightness of the sealing joint 8 to be detected is determined. Because the tightness detection device is connected with the detection branch pipes 6 with different sizes through the multi-way joint 5, the tightness detection can be carried out on the sealing joints 8 with different sizes; meanwhile, the helium storage cavity 10 detachably sleeved on the detection branch pipe 6 is adopted to input pressure helium to the part of the sealing joint 8 to be detected, so that the detection mode is flexible, and the detection efficiency is high; the helium gas storage cavity 10 can be sleeved on different detection branch pipes 6, so that the cost of the sealing detection device is low.
Specifically, as shown in fig. 1, the multi-way joint 5 is a four-way joint, the number of the detection branch pipes 6 is three, and the three detection branch pipes 6 have different pipe diameters and are used for connecting the to-be-detected sealing joints 8 with different sizes, so that the detection of the sealing joints with different sizes is realized.
In particular, the sealing joint to be tested 8 comprises: a first joint body 802a and a second joint body 802b disposed opposite to each other; a sealing gasket 803 is arranged between the first connector body 802a and the second connector body 802b, an internal thread nut 801 is sleeved on the first connector body 802a, an external thread nut 804 is sleeved on the second connector body 802b, and the internal thread nut 801 is in threaded connection with the external thread nut 804. More specifically, the first joint body 802a and the second joint body 802b have the same structure, and a sealing gasket 803 is disposed between the two bodies to achieve a sealing connection.
Specifically, the to-be-detected sealing joint 8 is connected with the detection branch pipe 6 through welding. More specifically, one side surfaces of the first joint body 802a and the second joint body 802b of the to-be-detected sealing joint 8, which are away from the sealing gasket 803, are respectively welded to the detecting branch pipe 6, and the pipe diameter of the detecting branch pipe 6 is matched with the pipe diameters of the first joint body 802a and the second joint body 802 b. The sealing performance between the sealing joint 8 and the detection branch pipe 6 is ensured through welding connection, and the interference is reduced.
Specifically, the specific configuration of the helium gas storage chamber 10 is not exclusive; in one embodiment, the helium storage chamber 10 is formed by an elastic sleeve structure with an opening on one side, the opening side of the elastic sleeve structure is sleeved on the detection branch pipe 6, and the elastic sleeve structure is in sealing connection with the detection branch pipe 6 under the elastic action.
Because the elasticity of the elastic sleeve body structure is in a certain range, the elastic sleeve body structure is easy to damage for the detection branch pipe 6 with larger outer diameter size difference; to this end, in another embodiment, the helium gas storage chamber 10 is formed by a rubber boot 104 having an opening on one side, and the open side of the rubber boot 104 is provided with a tightening band 103, and the tightening band 103 is used for tightening the open portion of the rubber boot 104 to be in sealing connection with the detection branch tube 6. After the detection is finished, the tightening belt 103 releases the opening part of the rubber sleeve 104, so that the rubber sleeve 104 is quickly separated from the detection branch pipe 6, and the rubber sleeve 104 adopting the tightening belt 103 can be suitable for the detection of the sealing joint 8 with larger size difference.
In order to rapidly charge helium into the helium storage cavity 10 when tightness is detected, the helium storage cavity 10 is provided with an air inlet 101 and an air outlet 102, the air inlet 101 is communicated with an output port of the helium supply device, the air outlet 102 is communicated with an exhaust device or a recovery device, and the air inlet 101 and the air outlet 102 are respectively provided with a switch valve.
When helium is supplied, the on-off valves at the gas inlet 101 and the gas outlet 102 are opened simultaneously, after the helium supply device supplies gas to the helium storage cavity 10 through the gas inlet 101, the original air in the helium storage cavity 10 is rapidly exhausted through the gas outlet 102, and the helium storage cavity 10 is rapidly filled with helium. In order to make the helium gas in the helium gas storage chamber 10 reach the set pressure value quickly, after the gas inlet 101 and the gas outlet 102 are opened simultaneously for a set time, the switch valve at the gas outlet 102 is controlled to be closed, so that the helium gas reaches the set pressure value quickly. More specifically, the air inlet 101 is located on the upper side of the to-be-detected sealing joint 8, and the air outlet 102 is located on the lower side of the to-be-detected sealing joint 8, so that helium entering from the air inlet 101 passes through the to-be-detected sealing joint 8 and then is discharged through the air outlet 102, and the detection efficiency is improved.
In order to facilitate the control of each detection branch pipe 6, specifically, the detection branch pipe 6 is further provided with a first switch valve 7, the first switch valve 7 is located between the to-be-detected sealing joint 8 and the multi-way joint 5, and the first switch valves 7 of different detection branch pipes 6 are controlled to be opened or closed, so that when the helium detector 1 is vacuumized, only the detection branch pipe 6 with the to-be-detected sealing joint 8 side is vacuumized, the detection efficiency is improved, and the interference of other branch pipes is eliminated.
The structure of the detection branch pipe 6 is not unique; in one embodiment, the detection branch pipe 6 is a pipeline with one open side and one closed side, and the open side of the detection branch pipe 6 is communicated with the multi-way joint 5. In another embodiment, the detection branch pipe 6 is a pipe with a bidirectional opening, the detection branch pipe 6 further includes a second switch valve 9, the second switch valve 9 is located between the to-be-detected sealing joint 8 and the free end portion of the detection branch pipe 6, and the second switch valve 9 is used for plugging the free end portion of the detection branch pipe 6. By adopting the bidirectional opening detection branch pipe 6, a new sealing joint 8 to be detected can be continuously connected to the free end part for detection, and the repeated utilization of the detection branch pipe 6 is realized on the premise of not cutting the sealing joint 8 which is detected completely.
Specifically, because the bore of input port 2 of appearance 1 is examined to the helium is great, the many joints 5 with then connect through reducing joint 4 between the appearance 1 is examined to the helium, wherein, reducing joint 4 with the input port 2 of appearance 1 is examined to the helium passes through vacuum clamp 3 sealing connection, vacuum clamp 3 with reducing joint 4 and set up sealing washer 11 between the input port 2 of appearance 1 is examined to the helium, reducing joint 4 with the outside parcel plastic film behind the threaded connection of many joints 5 for with the interface seal between the two.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the utility model.
Claims (9)
1. A leak tightness detection device for a sealed joint, comprising:
the helium detector comprises a vacuumizing unit and a helium detection unit;
the detection branch pipes are communicated with the helium detector through multi-way joints, and the detection branch pipes are fixedly connected with to-be-detected sealing joints;
and the helium storage cavity is detachably sleeved on the detection branch pipe and communicated with the helium supply device, and the to-be-detected sealing joint is positioned in the helium storage cavity.
2. The device for detecting the sealing performance of the sealing joint according to claim 1, wherein the helium gas storage chamber is provided with a gas inlet and a gas outlet, the gas inlet is communicated with the helium gas supply device, the gas outlet is communicated with a gas exhaust device or a recovery device, and the gas inlet and the gas outlet are respectively provided with an on-off valve.
3. The device for detecting the sealing performance of a sealing joint as claimed in claim 2, wherein the helium gas storage chamber is formed by a rubber sleeve with an opening on one side, and a tightening belt is arranged on the opening side of the rubber sleeve and used for tightening the opening part of the rubber sleeve to be in sealing connection with the detection branch pipe.
4. The device for testing the sealing performance of a sealing joint according to claim 1, wherein the sealing joint to be tested is welded to the test branch pipe.
5. The tightness detection device of a sealing joint according to claim 1, wherein the multi-way joint is a four-way joint, the number of the detection branch pipes is three, and the pipe diameters of the three detection branch pipes are different.
6. The device for detecting the sealing property of the sealing joint according to claim 1, wherein a first switch valve is further disposed on the detection branch pipe, and the first switch valve is located between the sealing joint to be detected and the multi-way joint.
7. The device for detecting the sealing performance of a sealing joint according to claim 1, wherein the detection branch pipe is a pipeline which is open at one end and closed at the other end.
8. The device for detecting the sealing performance of a sealing joint according to claim 1, wherein the detection branch pipe is a pipeline with a bidirectional opening, and the detection branch pipe further comprises a second switch valve, and the second switch valve is located between the sealing joint to be detected and the free end portion of the detection branch pipe.
9. The device for testing the leak tightness of a sealing joint according to claim 1, wherein said sealing joint to be tested comprises: the first joint body and the second joint body are oppositely arranged; a sealing gasket is arranged between the first connector body and the second connector body, an internal thread nut is sleeved on the first connector body, an external thread nut is sleeved on the second connector body, and the internal thread nut is in threaded connection with the external thread nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121568266.8U CN215448356U (en) | 2021-07-08 | 2021-07-08 | Sealing performance detection device for sealing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121568266.8U CN215448356U (en) | 2021-07-08 | 2021-07-08 | Sealing performance detection device for sealing joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215448356U true CN215448356U (en) | 2022-01-07 |
Family
ID=79715905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121568266.8U Active CN215448356U (en) | 2021-07-08 | 2021-07-08 | Sealing performance detection device for sealing joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215448356U (en) |
-
2021
- 2021-07-08 CN CN202121568266.8U patent/CN215448356U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202471374U (en) | Multifunctional airtightness detection apparatus | |
| CN205877729U (en) | Pipeline equipment | |
| CN210603758U (en) | Air tightness detection device for stainless steel corrugated pipe with flange | |
| CN108980626B (en) | Filling recovery method of helium detection sealing device | |
| CN215448356U (en) | Sealing performance detection device for sealing joint | |
| CN115076614A (en) | Leak protection detection device is used in pipeline under pressure inspection | |
| CN204062497U (en) | A kind of high-purity gas gravimetric method gas distribution device | |
| CN204008046U (en) | Lithium battery fluid injection air-tightness detection device | |
| CN211927206U (en) | Pipeline joint airtightness detection device | |
| CN205940907U (en) | A gas tightness inspection device for bellows | |
| CN115597789A (en) | Sealing performance detection device and detection method for sealing joint | |
| CN201281645Y (en) | Device for detecting gastight of underwater airtight cabin | |
| CN110702339A (en) | Air tightness leakage detection device and method | |
| CN202126344U (en) | Air-tightness detecting device for valve-regulated sealed lead-acid battery | |
| CN210322182U (en) | Pipeline air tightness detection device | |
| CN208860561U (en) | A kind of pressure vessel leak detecting device | |
| CN210005179U (en) | sealed automatic detection system | |
| CN216524632U (en) | Infrared detector dewar assembly leak detection device | |
| CN210319434U (en) | Pipeline leakage detection device | |
| CN214251421U (en) | Air tightness detection device | |
| CN216132642U (en) | Air chamber seal detection device | |
| CN217442795U (en) | Novel slip helium cover leak hunting box | |
| CN220625670U (en) | Air tightness detection device | |
| CN220982589U (en) | Leak hunting frock of pipeline and part junction | |
| CN217442774U (en) | Pressure measuring device of pipeline gas self-closing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |