CN107191669B - Leakage detection device for packing seal - Google Patents
Leakage detection device for packing seal Download PDFInfo
- Publication number
- CN107191669B CN107191669B CN201710467101.3A CN201710467101A CN107191669B CN 107191669 B CN107191669 B CN 107191669B CN 201710467101 A CN201710467101 A CN 201710467101A CN 107191669 B CN107191669 B CN 107191669B
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- Prior art keywords
- leakage
- ring
- hole
- guiding
- packing
- Prior art date
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- 238000012856 packing Methods 0.000 title claims abstract description 88
- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 81
- 210000004907 gland Anatomy 0.000 claims abstract description 35
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/06—Spindle sealings with stuffing-box ; Sealing rings with at least one ring attached to both spindle and housing
-
- 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
- G01M3/2853—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 pipe joints or seals
Abstract
The application discloses a leakage detection device of a packing seal, which is used for detecting sealing leakage of the packing seal and comprises a leakage guiding ring and a leakage collecting ring, wherein the leakage guiding ring and the leakage collecting ring are arranged between a sealing gland and a packing sealing ring and are sleeved on a valve rod, the leakage guiding ring is positioned below the leakage collecting ring, a leakage guiding hole is formed in the leakage guiding ring, the leakage guiding hole is communicated with the top end part of the leakage guiding ring and the radial inner side and/or the radial outer side of the leakage guiding ring, a flow guiding hole penetrating along the up-down direction is formed in the leakage collecting ring, a leakage guiding pipe is inserted in the flow guiding hole in a matched manner, the lower part of the leakage guiding pipe is inserted in the leakage guiding hole in a matched manner, a collecting hole extending outwards from the bottom end part of the leakage guiding pipe is formed in the sealing gland in a matched manner, and the upper part of the leakage guiding pipe is inserted in the collecting hole in a matched manner. The leakage detection device has the advantages of compact structure, fewer parts, easier molding and processing of each part, low installation and assembly requirements, and suitability for stuffing boxes with smaller structural space, so that the detection reliability of sealing leakage can be greatly improved.
Description
Technical Field
The application relates to a leakage detection device for a packing seal.
Background
Packing seals, such as valve sealing packing, of stuffing boxes often exist in the industrial fields of nuclear power, thermal power, energy sources and the like. In consideration of environmental protection, safety, economy and other factors, the sealing stuffing device of the stuffing box needs to know whether leakage exists or not and whether the leakage amount reaches the standard or not when the sealing stuffing device is manufactured, installed, debugged or operated. The quantitative detection of the leakage amount of the sealing filler of the stuffing box becomes a key for judging whether the leakage amount can meet the allowable leakage index, and becomes a key technology for judging whether the sealing system product is qualified or not. Meanwhile, whether the sealing system leaks or not is detected in the operation and use process of the sealing device, and the safe operation of the system can be ensured, so that the detection of the sealing leakage of the sealing system can be realized is also a key factor for judging the sealing reliability.
In view of this, the present inventors developed a leak detection device for a sealing packing, see chinese patent CN104330225B, which can perform qualitative or quantitative detection of a leaking medium in the sealing packing device, and provide a positive effect for predicting the safety and reliability of sealing. However, in this leak detection device, because the first leak-off ring that needs to set up the matched with is leaked off with the second and is leaked off the ring, still need set up first sealing ring and the second sealing ring that the size is less on leaking off the ring to the second simultaneously, this is to the installation space need certain requirement, only be fit for the packing box that the size is great, to the packing box that the size is less, do not possess the installation condition, simultaneously, the manufacturing of first sealing ring, second sealing ring and second leak-off ring, the assembly is all required higher, easily cause the damage of first sealing ring and second sealing ring during the assembly, cause the installation requirement high, easily cause the disqualification because of the installation and lead to the detection function to become invalid.
Disclosure of Invention
The application aims to overcome the defects of the prior art and provides a leakage detection device for a packing seal.
In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a leak detection device of packing for the sealed leak detection of packing device, the sealed packing device is including having the packing box of packing chamber, set firmly seal gland on the packing box, insert and establish valve rod in the packing chamber, fill and be used for in the packing box with the packing sealing ring of sealing between the valve rod, seal gland compresses tightly the packing sealing ring top, leak detection device is including locating seal gland with between the packing sealing ring and all overlap and establish leak guiding ring and the leakage collecting ring on the valve rod, leak guiding ring is located leak collecting ring's below, leak guiding ring is last to have seted up the leak guiding hole, leak guiding hole intercommunication leak guiding ring's top and its radial inboard and/or radial outside, leak guiding hole that runs through along the upper and lower direction is last to be equipped with the drain pipe that inserts in the drain hole with the cooperation, leak guiding pipe's lower part is equipped with in the drain guiding hole with the seal gland, still set up from its bottom to seal gland and seal the drain guiding ring is equipped with the drain guiding hole that extends to the drain pipe that the bottom is equipped with in the drain guiding hole that extends to the ground.
As a specific embodiment, the leakage hole is communicated with the top end part of the leakage ring and the radial inner side of the leakage ring, an annular inner leakage groove is formed in the inner peripheral part of the leakage ring, and the inner leakage groove is communicated with the leakage hole.
As another specific embodiment, the leakage hole is communicated with the top end part of the leakage ring and the radial outer side of the leakage ring, an annular outer leakage groove is formed in the outer peripheral part of the leakage ring, and the outer leakage groove is communicated with the leakage hole.
As another specific embodiment, the leakage hole is communicated with the top end part of the leakage ring and the radial inner side and the radial outer side of the leakage ring, an annular inner leakage groove is formed in the inner peripheral part of the leakage ring, an annular outer leakage groove is formed in the outer peripheral part of the leakage ring, and the inner leakage groove and the outer leakage groove are both communicated with the leakage hole.
Preferably, the leakage hole comprises a liquid inlet hole part extending along the radial direction of the leakage guiding ring and a mounting hole part extending along the height direction of the leakage guiding ring and used for the leakage guiding pipe to be inserted in a matched mode.
Preferably, one or a plurality of the leakage holes are arranged on the leakage guiding ring at intervals along the circumferential direction of the leakage guiding ring, and the number of the leakage guiding pipes corresponds to the number of the leakage guiding holes.
Preferably, the leakage collecting ring is a flexible sealing ring made of flexible material.
Preferably, the inner peripheral portion of the leakage collecting ring is in sealing connection with the valve stem, and the outer peripheral portion of the leakage collecting ring is in sealing connection with the packing box.
Further, the leakage collecting ring and the leakage guiding ring are both positioned in the packing cavity, and at least part of the lower part of the sealing gland extends into the packing cavity and is pressed down on the top end part of the leakage collecting ring.
Preferably, the collecting hole on the sealing gland comprises a connecting hole part extending upwards from the bottom end of the sealing gland and allowing the leakage guiding pipe to be inserted, and a liquid outlet hole part extending from the top end of the connecting hole part to the radial outer side of the sealing gland, wherein the liquid collecting pipe is fixedly connected to the outer side of the liquid outlet hole part.
Due to the application of the technical scheme, compared with the prior art, the application has the following advantages: the leakage detection device for the packing seal has the advantages of compact structure, fewer parts, easy molding and processing of all parts, convenient installation and assembly, low installation requirement and high precision, and can be suitable for packing boxes with smaller structural space, and meanwhile, the detection reliability of the seal leakage can be greatly improved. The quantity and the property of the leakage medium can be determined by carrying out qualitative or quantitative analysis and detection on the collected leakage medium, so that the sealing safety condition of the system is judged to ensure the safe operation of equipment, and the system is particularly suitable for sealing leakage detection in fields with very high safety requirements such as nuclear power, petrochemical industry and the like.
Drawings
FIG. 1 is a schematic view showing the internal structure of a packing seal of embodiment 1;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic view showing the internal structure of the packing seal of example 2;
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
FIG. 5 is a schematic view showing the internal structure of a packing seal of embodiment 3;
FIG. 6 is an enlarged schematic view of portion C of FIG. 5;
wherein: 1. a stuffing box; 2. a valve stem; 3. a sealing gland; 31. a collection hole; 31a, a connecting hole portion; 31b, a liquid outlet hole part; 4. a packing seal ring; 41. a metal backing ring; 42. braiding a packing ring; 43. a graphite ring; 44. a lantern ring; 5. a leakage guiding ring; 51. a drain hole; 52. an inner drain groove; 53. an outer drain groove; 6. a leakage collection ring; 7. a drain pipe; 8. a liquid collecting pipe.
Detailed Description
The technical scheme of the application is further described below with reference to the attached drawings and specific embodiments.
Example 1
The sealing packing device shown in fig. 1 comprises a packing box 1 with a packing cavity, a sealing gland 3 fixedly arranged on the packing box 1, a valve rod 2 inserted in the packing cavity of the packing box 1, and a packing sealing ring 4 filled in the packing cavity and used for sealing between the packing box 1 and the valve rod 2.
As shown in fig. 1, in this embodiment, the packing ring 4 includes a metal gasket 41, a braided packing ring 42, a graphite ring 43, a lantern ring 44, a graphite ring 43, and a braided packing ring 42, which are sequentially arranged from bottom to top, and under the action of the pressing force of the sealing gland 3, the inner peripheral portion of the packing ring 4 is in sealing engagement with the valve rod 2, and the outer peripheral portion thereof is in sealing engagement with the inner cavity wall of the packing box 1, so that the sealing connection between the valve rod 2 and the packing box 1 is realized.
The sealing packing device is provided with a leakage detection device, the leakage detection device comprises a leakage guiding ring 5 and a leakage collecting ring 6 which are arranged between a sealing gland 3 and a packing sealing ring 4, the leakage guiding ring 5 and the leakage collecting ring 6 are both contained in a packing cavity and sleeved on a valve rod 2, and the leakage collecting ring 6 is positioned above the leakage guiding ring 5.
Referring to fig. 1 and 2, the leakage ring 5 is provided with a leakage hole 51, the leakage hole 51 communicates with the top end of the leakage ring 5 and the radial inner side and the radial outer side thereof, the inner circumference of the leakage ring 5 is provided with an annular inner leakage groove 52, the outer circumference of the inner circumference is provided with an annular outer leakage groove 53, and the inner leakage groove 52 and the outer leakage groove 53 are both communicated with the leakage hole 51. In this way, the leakage medium between the inner peripheral portion of the packing ring 4 and the valve stem 2 enters the leakage hole 51 from the inner leakage guide groove 52, and the leakage medium between the outer peripheral portion of the packing ring 4 and the packing box 1 enters the leakage hole 51 from the outer leakage guide groove 53.
Referring to fig. 1 and 2, the leakage collecting ring 6 is provided with a guide hole penetrating in the vertical direction, a leakage guiding pipe 7 is inserted in the guide hole in a matching manner, and the lower part of the leakage guiding pipe 7 is inserted in a leakage guiding hole 51 in a matching manner. Specifically, the drain hole 51 includes a liquid inlet hole portion extending in the radial direction of the drain ring 5 and a mounting hole portion extending in the height direction of the drain ring 5 and into which the drain pipe 7 is fittingly inserted, the liquid inlet hole portion communicating the inner drain groove 52 with the outer drain groove 53.
The sealing gland 3 is also provided with a collecting hole 31 extending outwards from the bottom end part, and the upper end part of the leakage guiding pipe 7 is inserted in the collecting hole 31 in a matched manner. Specifically, the collecting hole 31 includes a connection hole portion 31a extending upward from the bottom end of the sealing gland 3 and into which the drain pipe 7 is inserted, and a liquid outlet hole portion 31b extending radially outward of the sealing gland 3 from the top of the connection hole portion 31a, and the liquid collecting pipe 8 is fixedly connected to the outer side of the liquid outlet hole portion 31 b.
The above-mentioned leak collection ring 6 adopts the flexible sealing ring that is made for flexible material, and gland 3 compresses tightly in leak collection ring 6 top for leak collection ring 6 extrusion deformation seals between valve rod 2 and stuffing box 1, guarantees the seal reliability of leak collection ring 6 department. Furthermore, the leakage collecting ring 6 is pressed so that the hole wall of the deflector hole on it is in engagement with the outer circumference of the leakage guide tube 7, so that the leaked medium can flow from the leakage guide tube 7 into the collecting hole 31. In this embodiment, both the leakage collection ring 6 and the leakage guiding ring 5 are accommodated in the packing chamber, and the lower part of the gland 3 at least partially extends into the packing chamber and is pressed down on the top end of the leakage collection ring 6.
Thus, the medium leaking from the radial inner side and the radial outer side of the packing ring 4 will enter the leakage hole 51 through the inner leakage groove 52 and the outer leakage groove 53, respectively, then enter the collecting hole 31 through the leakage pipe 7, and finally flow out through the liquid collecting pipe 8 for collecting and detecting.
In this leak detection device, the number of the leak pipes 7 may be equal to the number of the leak holes 51, or may be one leak hole 51 in the leak ring 5 or may be a plurality of leak holes 51 distributed at intervals in the circumferential direction of the leak ring 5.
When the leak detection apparatus is used, the leak detection apparatus can be mounted as follows:
penetrating the valve rod 2 into the packing cavity, and installing a packing sealing ring 4; then, the leakage guiding ring 5 and the leakage collecting ring 6 are axially overlapped, the leakage guiding pipe 7 axially penetrates into the guiding hole of the leakage collecting ring 6 and downwards penetrates into the leakage guiding hole 51 on the leakage guiding ring 5 in a matched mode, and the assembly formed by the leakage guiding ring 5, the leakage collecting ring 6 and the leakage guiding pipe 7 is axially sleeved on the valve rod 2 together, and the leakage guiding ring 5 is arranged downwards and the leakage collecting ring 6 is arranged upwards. Next, installing the sealing gland 3, and inserting the upper part of the drain tube 7 into the collecting hole 31 in a matched manner; a pressing force is applied to the seal gland 3 so that the packing ring 4 and the leakage collecting ring 6 are sealed, respectively.
In the above installation, the leakage guiding ring 5 and the leakage collecting ring 6 may be overlapped in the axial direction, the leakage guiding pipe 7 may be inserted into the guiding hole of the leakage collecting ring 6 in the axial direction and be inserted into the leakage guiding hole 51 on the leakage guiding ring 5 in a downward fit manner, and the sealing gland 3 may be covered over the leakage collecting ring 6, so that the upper portion of the leakage guiding pipe 7 is inserted into the collecting hole 31 in a fit manner; and then the components consisting of the leakage guiding ring 5, the leakage collecting ring 6, the leakage guiding pipe 7 and the sealing gland 3 are sleeved on the valve rod 2 along the axial direction, and a pressing force is applied to the sealing gland 3, so that the packing sealing ring 4 and the leakage collecting ring 6 are respectively sealed.
According to the mode, the configuration and the installation of the leakage detection device are realized, the leakage detection medium is collected through the liquid collecting pipe 8 and is qualitatively or quantitatively detected and analyzed by the detection element, the installation process is simple, convenient and quick, and the positioning accuracy is high.
In summary, this leak detection device only needs to add in original sealing packing device and draws leaking ring 5, leak and collect ring 6 and draw leaking pipe 7, sets up collecting hole 31 simultaneously on gland 3 and can accomplish the collection to sealed leakage medium, and its part is less, and each part processing and installation are all more convenient, and the installation accuracy is high, and detection reliability also obtains great improvement. The leakage medium collected by the liquid collecting pipe 8 can be qualitatively or quantitatively analyzed and detected by a detecting instrument to determine the quantity and the property of the leakage medium, so that the sealing safety condition of the system is judged to ensure the safe operation of equipment.
The leakage detection device can be used for detecting the leakage amount under alternating working conditions (the temperature, the pressure, the medium and the like), and further can obtain the corresponding relation between the working conditions (the temperature, the pressure, the medium and the like) of the sealing element and the leakage amount, so that the leakage amount under the working conditions of the sealing element can be determined, accurate data support is provided for the design of the sealing element, the connecting parts of the sealing element and the like, meanwhile, the change condition of the leakage amount of the sealing element under the working conditions can be timely detected, the safe and effective condition of the sealing can be judged according to the relation between the operating working conditions and the leakage amount, and through timely detection of the leakage amount, safe and effective measures can be adopted in advance before the leakage amount reaches a leakage critical value, and the safety and reliability of the sealing are ensured. Particularly, in the fields with very high safety requirements, such as nuclear power, petrochemical industry and the like, whether the sealing is reliable or not can be monitored in time by timely detecting the leakage quantity of the sealing element, so that safety guarantee is provided for safe operation of equipment.
Example 2
As shown in fig. 3 and 4, the difference from embodiment 1 is mainly that the leak detection device is used for detecting seal leak between the outer peripheral portion of the packing ring 4 and the packing box 1. Specifically, in the leak detection device, the leak hole 51 on the leak ring 5 is a blind hole, the leak hole 51 communicates with the top end portion of the leak ring 5 and the radial outer side thereof, the outer peripheral portion of the leak ring 5 is provided with an outer leak groove 53, and the outer leak groove 53 communicates with the leak hole 51.
Example 3
As shown in fig. 5 and 6, the difference from embodiment 1 is mainly that the leak detection device is used for detecting seal leak between the inner peripheral portion of the packing ring 4 and the valve stem 2. Specifically, in the leak detection device, the leak hole 51 on the leak ring 5 is a blind hole, the leak hole 51 communicates with the top end portion of the leak ring 5 and the radial inner side thereof, the inner peripheral portion of the leak ring 5 is provided with an inner leak groove 52, and the inner leak groove 52 communicates with the leak hole 51.
In the following description of the up and down directions, the up and down directions shown in fig. 1, 3 and 5 are defined for convenience of description and understanding, and the up and down directions substantially correspond to the axial direction of the valve stem 2, wherein the side close to the seal gland 3 is the upper side and the side close to the packing ring 4 is the lower side.
The above embodiments are provided to illustrate the technical concept and features of the present application and are intended to enable those skilled in the art to understand the content of the present application and implement the same, and are not intended to limit the scope of the present application. All equivalent changes or modifications made in accordance with the spirit of the present application should be construed to be included in the scope of the present application.
Claims (7)
1. The utility model provides a leak testing device of packing for the sealed leak testing of packing device, the sealed packing device includes the packing box that has the packing chamber, sets firmly gland on the packing box, inserts and establishes valve rod in the packing chamber, packing in the packing chamber be used for the packing box with the packing seal ring of sealing between the valve rod, gland compresses tightly packing ring top, its characterized in that: the leakage detection device comprises a leakage guiding ring and a leakage collecting ring, wherein the leakage guiding ring and the leakage collecting ring are arranged between the sealing gland and the packing sealing ring and are sleeved on the valve rod, the leakage guiding ring is arranged below the leakage collecting ring, the leakage guiding ring is provided with a leakage guiding hole, the leakage guiding hole is communicated with the top end part of the leakage guiding ring and the radial inner side and/or the radial outer side of the leakage guiding ring, the leakage collecting ring is provided with a flow guiding hole penetrating in the vertical direction, a leakage guiding pipe is inserted in the flow guiding hole in a matched manner, the lower part of the leakage guiding pipe is inserted in the leakage guiding hole in a matched manner, the upper part of the leakage guiding pipe is inserted in the collection hole in a matched manner, the leakage collecting ring is a flexible sealing ring made of a flexible material, the leakage collecting ring and the leakage guiding ring are all arranged in the packing cavity, and the lower part of the sealing ring at least partially stretches into the packing cavity and presses down the top end part of the leakage guiding ring downwards, so that the inner side of the sealing ring is connected with the periphery of the sealing gland, and the sealing gland is connected with the leakage collecting ring.
2. The packing leak detection apparatus of claim 1, wherein: the leakage hole is communicated with the top end part and the radial inner side of the leakage ring, an annular inner leakage groove is formed in the inner peripheral part of the leakage ring, and the inner leakage groove is communicated with the leakage hole.
3. The packing leak detection apparatus of claim 1, wherein: the leakage hole is communicated with the top end part of the leakage ring and the radial outer side of the leakage ring, an annular outer leakage groove is formed in the outer peripheral part of the leakage ring, and the outer leakage groove is communicated with the leakage hole.
4. The packing leak detection apparatus of claim 1, wherein: the leakage hole is communicated with the top end part of the leakage ring and the radial inner side and the radial outer side of the leakage ring, an annular inner leakage groove is formed in the inner peripheral part of the leakage ring, an annular outer leakage groove is formed in the outer peripheral part of the leakage ring, and the inner leakage groove and the outer leakage groove are communicated with the leakage hole.
5. A leak detection apparatus for a packing according to any one of claims 1 to 4, wherein: the leakage guiding hole comprises a liquid inlet hole part extending along the radial direction of the leakage guiding ring and a mounting hole part extending along the height direction of the leakage guiding ring and used for the leakage guiding pipe to be inserted in a matched mode.
6. The packing leak detection apparatus of claim 1, wherein: the leakage guide ring is provided with one leakage guide hole or a plurality of leakage guide holes which are distributed at intervals along the circumferential direction of the leakage guide ring, and the number of the leakage guide pipes corresponds to the number of the leakage guide holes.
7. The packing leak detection apparatus of claim 1, wherein: the sealing gland is provided with a collecting hole, the collecting hole comprises a connecting hole part which extends upwards from the bottom end of the sealing gland and is used for the leakage guiding pipe to be inserted, a liquid outlet hole part which extends from the top end of the connecting hole part to the radial outer side of the sealing gland, and a liquid collecting pipe is fixedly connected to the outer side of the liquid outlet hole part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467101.3A CN107191669B (en) | 2017-06-19 | 2017-06-19 | Leakage detection device for packing seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467101.3A CN107191669B (en) | 2017-06-19 | 2017-06-19 | Leakage detection device for packing seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107191669A CN107191669A (en) | 2017-09-22 |
| CN107191669B true CN107191669B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467101.3A Active CN107191669B (en) | 2017-06-19 | 2017-06-19 | Leakage detection device for packing seal |
Country Status (1)
| Country | Link |
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| CN (1) | CN107191669B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867123A (en) * | 2019-11-14 | 2020-03-06 | 中核核电运行管理有限公司 | Electric gate valve simulation body structure |
| CN111174985A (en) * | 2020-01-10 | 2020-05-19 | 华东理工大学 | Filler sealing performance detection device |
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|---|---|---|---|---|
| US4916938A (en) * | 1988-08-25 | 1990-04-17 | Atomic Energy Of Canada Limited | Valve leakage inspection, testing and maintenance process |
| JP2009145120A (en) * | 2007-12-12 | 2009-07-02 | Yamatake Corp | Leaking fluid collection structure and fluid leakage detection system |
| CN201779263U (en) * | 2010-09-07 | 2011-03-30 | 中国铝业股份有限公司 | Filling material sealing device of rotating shaft |
| CN103343835A (en) * | 2013-07-29 | 2013-10-09 | 天津奥美自动化系统有限公司 | Sealing structure of valve |
| CN204114122U (en) * | 2014-08-27 | 2015-01-21 | 新特能源股份有限公司 | A kind of dryer sealing device |
| CN104330225A (en) * | 2014-11-20 | 2015-02-04 | 苏州宝骅机械技术有限公司 | Leakage detection device for sealing filler |
| CN106286838A (en) * | 2015-05-26 | 2017-01-04 | 新特能源股份有限公司 | A kind of agitator tank stuffing seal |
| CN206846076U (en) * | 2017-06-19 | 2018-01-05 | 苏州宝骅密封科技股份有限公司 | The leak detecting device of packing seal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20030028A1 (en) * | 2003-01-22 | 2004-07-23 | Vincenzo Varriale | SEAL TO PREMISTOPPA. |
-
2017
- 2017-06-19 CN CN201710467101.3A patent/CN107191669B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4916938A (en) * | 1988-08-25 | 1990-04-17 | Atomic Energy Of Canada Limited | Valve leakage inspection, testing and maintenance process |
| JP2009145120A (en) * | 2007-12-12 | 2009-07-02 | Yamatake Corp | Leaking fluid collection structure and fluid leakage detection system |
| CN201779263U (en) * | 2010-09-07 | 2011-03-30 | 中国铝业股份有限公司 | Filling material sealing device of rotating shaft |
| CN103343835A (en) * | 2013-07-29 | 2013-10-09 | 天津奥美自动化系统有限公司 | Sealing structure of valve |
| CN204114122U (en) * | 2014-08-27 | 2015-01-21 | 新特能源股份有限公司 | A kind of dryer sealing device |
| CN104330225A (en) * | 2014-11-20 | 2015-02-04 | 苏州宝骅机械技术有限公司 | Leakage detection device for sealing filler |
| CN106286838A (en) * | 2015-05-26 | 2017-01-04 | 新特能源股份有限公司 | A kind of agitator tank stuffing seal |
| CN206846076U (en) * | 2017-06-19 | 2018-01-05 | 苏州宝骅密封科技股份有限公司 | The leak detecting device of packing seal |
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| Publication number | Publication date |
|---|---|
| CN107191669A (en) | 2017-09-22 |
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