CN115597789A - Sealing performance detection device and detection method for sealing joint - Google Patents
Sealing performance detection device and detection method for sealing joint Download PDFInfo
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- CN115597789A CN115597789A CN202110776007.2A CN202110776007A CN115597789A CN 115597789 A CN115597789 A CN 115597789A CN 202110776007 A CN202110776007 A CN 202110776007A CN 115597789 A CN115597789 A CN 115597789A
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/183—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for pipe joints or seals
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Abstract
The invention discloses a device and a method for detecting the sealing property of a sealing joint, and belongs to the field of sealing property detection. This leakproofness detection device includes: the helium detector comprises a helium detector, a reducing joint arranged at an input port of the helium detector, a multi-way joint arranged on the reducing joint, and at least two detection branch pipes connected to the multi-way joint, wherein the detection branch pipes are fixedly connected with to-be-detected sealing joints; still include the sealed air chamber with the air feed unit intercommunication, sealed air chamber detachably cup joint in detect on the branch pipe, it is located to wait to detect sealing joint in the sealed air chamber. The invention solves the problem that the existing tightness detection device can not detect sealing joints with different sizes and types.
Description
Technical Field
The invention relates to the field of tightness detection devices, in particular to a tightness detection device and a tightness detection method for 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 generated 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. The existing vacuum method helium testing equipment can only test one size of sealing joint generally. 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.
Disclosure of Invention
The invention 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 invention provides the following technical scheme:
a leak detection apparatus for sealing a joint, comprising: the helium detector comprises a helium detector, a reducing joint arranged at an input port of the helium detector, a multi-way joint arranged on the reducing joint, and at least two detection branch pipes connected to the multi-way joint, wherein the detection branch pipes are fixedly connected with to-be-detected sealing joints; the detection device is characterized by further comprising a sealed air chamber communicated with the air supply unit, the sealed air chamber is detachably sleeved on the detection branch pipe, and the to-be-detected sealing joint is located in the sealed air chamber.
In some embodiments of the present invention, the sealed air chamber is formed by a rubber sleeve having an opening on one side, and a tightening belt is disposed on the opening side of the rubber sleeve and used for tightening the opening of the rubber sleeve to connect the rubber sleeve with the detection branch pipe in a sealing manner; the sealed air chamber is provided with an air inlet and an air outlet, the air inlet is communicated with the air supply unit, and the air outlet is communicated with the air exhaust unit or the recovery unit.
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 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 sealed joint and the free end of the detection branch pipe.
In some embodiments of the present invention, the reducer union is hermetically connected to the input port of the helium detector by a vacuum clamp.
In some embodiments of the invention, 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.
The invention also provides a method for detecting the sealing property of the sealing joint, which adopts the device for detecting the sealing property and comprises the following steps:
fixedly connecting the sealing joint to be detected to one of the detection branch pipes;
controlling the helium detector to perform vacuumizing treatment;
and when the vacuum degree of the pipeline reaches a set threshold value, controlling the gas supply unit to supply helium gas to the sealed gas chamber, and stopping supplying gas to the sealed gas chamber after the indication number of the helium detector is stable.
In some embodiments of the present invention, a first switch valve is further disposed on the detection branch pipe, the first switch valve is located between the to-be-detected sealing joint and the multi-way joint, and before controlling the helium detector to perform vacuum pumping, the first switch valve on the detection branch pipe having the to-be-detected sealing joint is controlled to be opened, and the first switch valves on the other detection branch pipes are controlled to be closed.
In some embodiments of the present invention, the detection branch pipe is a bidirectional open pipeline, the detection branch pipe further includes a second switch valve, the second switch valve is located between the to-be-detected sealed joint and the free end portion of the detection branch pipe, when the vacuum degree of the pipeline reaches a set threshold value, the sealed gas chamber is hermetically sleeved on the detection branch pipe, so that the second switch valve is located in the sealed gas chamber, the gas supply unit is controlled to supply helium gas to the sealed gas chamber, after the indication number of the helium detector is stabilized after a set time, the sealed gas chamber is sleeved on the detection branch pipe, so that the second switch valve and the to-be-detected sealed joint are both located in the sealed gas chamber, the gas supply unit is controlled to supply helium gas to the sealed gas chamber again, after the indication number of the helium detector is stabilized again after the set time, gas supply to the sealed gas chamber is stopped, and the sealing performance of the to-be-detected sealed joint is determined according to the indication number of the helium detector twice.
In some embodiments of the present invention, after the tightness of the to-be-detected sealing joint on the detection branch pipe is detected, the end of the detection branch pipe is continuously and fixedly connected to a second to-be-detected sealing joint and a second switch valve, so as to detect the tightness of the second to-be-detected sealing joint.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
when the tightness detection device provided by the invention is used for performing tightness detection on a sealing joint to be detected, firstly, 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 sealing air chamber through an air supply unit and passes through the sealing joint to be detected, if the sealing joint to be detected has a leakage port, the helium enters the interior of the detection branch pipe through the leakage port, and the helium detector detects the helium so as to determine the tightness of the sealing joint to be detected; meanwhile, the sealing air chamber detachably sleeved on the detection branch pipe is adopted to input pressure helium to the part of the sealing joint to be detected, the detection mode is flexible, and the detection efficiency is high; because this sealed air chamber can cup joint on different detection branch pipes, adopt one set of sealed air 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 invention, 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 diagram of one embodiment of a sealed air chamber in the sealing performance testing apparatus of the sealing joint according to 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 is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 a specific case to those of ordinary skill in the art.
Furthermore, 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 sealing performance testing apparatus (hereinafter, referred to as a sealing performance testing apparatus) for a sealing joint according to the present invention, which is used for sampling and testing the sealing performance of a sealing joint, such as a face sealing joint.
This leakproofness detection device includes: the device comprises a helium detector 1, a reducer union 4 arranged at an input port 2 of the helium detector 1, a multi-way union 5 arranged on the reducer union 4, and at least two detection branch pipes 6 connected to the multi-way union 5, wherein the detection branch pipes 6 are fixedly connected with a sealing joint 8 to be detected; the device is characterized by further comprising a sealed air chamber 10 communicated with the air supply unit, the sealed air chamber 10 is detachably sleeved on the detection branch pipe 6 in a sealing mode, and the sealing joint 8 to be detected is located in the sealed air chamber 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 helium detector 1, after the vacuum degree in the pipeline meets the requirement, helium is conveyed to the sealing air chamber 10 through the air supply unit and 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 detector 1 detects the helium so as to determine the tightness of the sealing joint 8 to be detected, and as the tightness detection device is connected with the detection branch pipes 6 with different sizes through the multi-way joint 5, the tightness detection of the sealing joints 8 with different sizes can be carried out; meanwhile, the sealing air chamber 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; because the sealing air chamber 10 can be sleeved on different detection branch pipes 6, the cost of the sealing detection device is lower.
Specifically, 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 sealed joint 8, which are far away from the sealing gasket 803, are respectively connected with the detecting branch pipe 6 in a welding manner, 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 structure of the sealed air chamber 10 is not exclusive; in one embodiment, the air seal chamber 10 is formed by an elastic sleeve body structure with an opening on one side, the opening side of the elastic sleeve body is sleeved on the detection branch pipe 6, and the elastic sleeve body 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; for this purpose, in another embodiment, the sealed air chamber 10 is formed by a rubber sleeve 104 having an opening on one side, and the opening side of the rubber sleeve 104 is provided with a tightening band 103, and the tightening band 103 is used for tightening the opening portion of the rubber sleeve 104 to be connected with the detecting branch pipe 6 in a sealing manner. 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 quickly fill helium gas into the sealed gas chamber 10 when the tightness is detected, the sealed gas chamber 10 is provided with a gas inlet 101 and a gas outlet 102, the gas inlet 101 is communicated with an output port of the gas supply unit, and the gas outlet 102 is communicated with a gas exhaust unit or a recovery unit. Thus, after the air supply unit supplies air to the airtight air chamber 10 through the air inlet 101, the original air in the airtight air chamber 10 is quickly discharged through the air outlet 102, so that the airtight air chamber 10 is quickly filled with helium gas. Meanwhile, in order to rapidly reach the set pressure value of the helium gas in the sealed gas chamber 10, after the gas inlet 101 and the gas outlet 102 are simultaneously opened for a set time, the gas outlet 102 is closed, so that the helium gas rapidly reaches the set pressure value. 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 it then needs to pass through between the appearance 1 is examined to the helium reducing joint 4 is connected, 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 and 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 many joints 5 threaded connection for with the interface seal between the two.
The invention also provides a detection method applying the tightness detection device, which comprises the following steps:
s1, connecting a sealing joint 8 to be detected to one of detection branch pipes 6 fixedly;
specifically, a first joint body 802a and a second joint body 802b of the to-be-detected sealing joint 8 are respectively welded to the two detection branch pipes 6, a sealing gasket 803 is installed on the side surface of the first joint body 802a opposite to the second joint body 802b, and then the sealing gasket is in threaded connection with the female adapter through the male adapter, so that the to-be-detected sealing joint 8 is connected to the detection branch pipes 6.
S2, controlling the helium detector 1 to perform vacuumizing treatment;
specifically, before controlling the helium detector 1 to perform vacuum pumping, the sealed connection condition of the pipeline connection part is checked, and the outer side of the connection point, which is not provided with the sealed connection structure inside, is wrapped with a plastic film to realize external sealing, so that a vacuum chamber is quickly formed in the detection branch pipe 6.
Specifically, before the helium detector 1 is controlled to perform vacuum pumping, the first switch valve 7 on the detection branch pipe 6 with the sealing joint 8 to be detected is controlled to be opened, and the first switch valves 7 on the other detection branch pipes 6 are controlled to be closed. So that the detection branch pipe 6 with the sealing joint 8 to be detected can quickly form a vacuum environment, and the detection efficiency is improved.
And S3, when the vacuum degree of the pipeline reaches a set threshold value, controlling the gas supply unit to supply helium gas to the sealed gas chamber 10, and stopping supplying gas to the sealed gas chamber 10 after the indication of the helium detector 1 is stable.
Specifically, when the vacuum degree of the pipeline reaches a set threshold value, the valves at the air inlet 101 and the air outlet 102 of the sealed air chamber 10 are controlled, so that the air inlet 101 and the air outlet 102 are firstly in an open state, and after the air supply unit supplies air to the sealed air chamber 10 through the air inlet 101, the original air in the sealed air chamber 10 is quickly exhausted through the air outlet 102, so that the sealed air chamber 10 is quickly filled with helium. After the air supply unit supplies air for a set time, the valve at the air outlet 102 is controlled to be closed, so that the helium in the sealed air chamber 10 quickly reaches a set pressure value, and the helium can enter the detection branch pipe 6 from the leakage port of the sealing joint 8 to be detected.
Specifically, in one embodiment, when the detection branch 6 is a pipe with a bidirectional opening, the step S3 is specifically: when the vacuum degree of the pipeline reaches a set threshold value, the sealing gas chamber 10 is hermetically sleeved on the detection branch pipe 6, the second switch valve 9 is located in the sealing gas chamber 10, the gas supply unit is controlled to supply helium gas to the sealing gas chamber 10, after the indication number of the helium detector 1 is stabilized after the set time, the sealing gas chamber 10 is sleeved on the detection branch pipe 6, the second switch valve 9 and the sealing joint 8 to be detected are both located in the sealing gas chamber 10, the gas supply unit is controlled to supply helium gas to the sealing gas chamber 10, and after the indication number of the helium detector 1 is stabilized again after the set time, gas supply to the sealing gas chamber 10 is stopped; the tightness of the sealing joint 8 can be judged by comparing the first indication and the second indication of the helium detector 1, for example, when the second switch valve 9 is sleeved with the sealing air chamber 10, the detection value of the helium detector 1 is a milliliter, after the second switch valve 9 and the sealing joint 8 to be detected are sleeved with the sealing air chamber 10, the detection value of the helium detector 1 is a milliliter, and if a is less than B, the sealing joint 8 to be detected has a leakage point. If A is larger than or equal to B, the sealing property of the sealing joint 8 to be detected is higher.
If after the tightness detection of the to-be-detected sealing joint 8 on the detection branch pipe 6 is finished, when another sealing joint 8 with the size needs to be continuously detected, welding a second sealing joint 8 to the free end part of the detection branch pipe 6, connecting the end part of the extended detection branch pipe 6 with a second switch valve 9 to seal the detection branch pipe 6, matching the second switch valve 9 and the to-be-welded sealing joint 8 through a sealing air chamber 10, and repeating the steps to realize the tightness detection of the second sealing joint 8. By analogy, the tightness detection device and the tightness detection method can be used for detecting the tightness of the sealing joints 8 with different sizes or the same size and different types.
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 invention.
Claims (10)
1. A leak tightness detection device of a sealed joint, characterized in that it comprises:
the device comprises a helium detector, a reducer union arranged at an input port of the helium detector, a multi-way union arranged on the reducer union, and at least two detection branch pipes connected to the multi-way union, wherein the detection branch pipes are fixedly connected with to-be-detected sealing joints;
still include the sealed air chamber with the air feed unit intercommunication, sealed air chamber detachably cup joint in detect on the branch pipe, it is located to wait to detect sealing joint in the sealed air chamber.
2. The tightness detection device of a sealing joint according to claim 1, wherein the sealing air chamber is formed by a rubber sleeve having an opening at one side, and a tightening belt is provided at the opening side of the rubber sleeve and used for tightening the opening portion of the rubber sleeve to make a sealing connection with the detection branch pipe; the sealed air chamber is provided with an air inlet and an air outlet, the air inlet is communicated with the air supply unit, and the air outlet is communicated with the air exhaust unit or the recovery unit.
3. The device for detecting the sealing property of the sealing joint according to claim 1, wherein a first switch valve is further arranged on the detection branch pipe, and the first switch valve is positioned between the sealing joint to be detected and the multi-way joint.
4. The device for detecting the sealing property of the sealing joint according to claim 3, 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 of the detection branch pipe.
5. The device of claim 1, wherein the reducer union is sealingly connected to the input port of the helium detector by a vacuum clamp.
6. 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.
7. A method for testing the sealing performance of a sealed joint, characterized by using the sealing performance testing apparatus according to any one of claims 1 to 6, comprising the steps of:
fixedly connecting the sealing joint to be detected to one of the detection branch pipes;
controlling the helium detector to perform vacuum pumping treatment;
and when the vacuum degree of the pipeline reaches a set threshold value, controlling the gas supply unit to supply helium gas to the sealed gas chamber, and stopping supplying gas to the sealed gas chamber after the indication number of the helium detector is stable.
8. The method for detecting the sealing property of the sealing joint according to claim 7, wherein a first switch valve is further arranged on the detection branch pipe and located between the sealing joint to be detected and the multi-way joint, and before the helium detector is controlled to perform vacuumizing treatment, the first switch valve on the detection branch pipe with the sealing joint to be detected is controlled to be opened, and the first switch valves on the other detection branch pipes are controlled to be closed.
9. The method for detecting the sealing performance of the sealing joint according to claim 7, wherein the detection branch pipe is a bidirectional opening pipeline, the detection branch pipe further comprises a second switch valve, the second switch valve is located between the sealing joint to be detected and the free end portion of the detection branch pipe, when the vacuum degree of the pipeline reaches a set threshold value, the sealing air chamber is hermetically sleeved on the detection branch pipe, the second switch valve is located in the sealing air chamber, the air supply unit is controlled to supply helium to the sealing air chamber, after the indication number of the helium detector is stabilized after a set time, the sealing air chamber is sleeved on the detection branch pipe, the second switch valve and the sealing joint to be detected are both located in the sealing air chamber, the air supply unit is controlled to supply helium to the sealing air chamber again, after the indication number of the helium detector is stabilized again after the set time, the air supply to the sealing air chamber is stopped, and the sealing performance of the sealing joint to be detected is determined according to the indication number twice of the helium detector.
10. The method for detecting the sealing property of the sealing joint according to claim 9, wherein after the sealing property of the sealing joint to be detected on the detecting branch pipe is detected, a second sealing joint to be detected and a second switch valve are continuously and fixedly connected to an end of the detecting branch pipe, so that the sealing property of the second sealing joint to be detected is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776007.2A CN115597789A (en) | 2021-07-08 | 2021-07-08 | Sealing performance detection device and detection method for sealing joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110776007.2A CN115597789A (en) | 2021-07-08 | 2021-07-08 | Sealing performance detection device and detection method for sealing joint |
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| CN115597789A true CN115597789A (en) | 2023-01-13 |
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| CN202110776007.2A Pending CN115597789A (en) | 2021-07-08 | 2021-07-08 | Sealing performance detection device and detection method for sealing joint |
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- 2021-07-08 CN CN202110776007.2A patent/CN115597789A/en active Pending
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