CN202710256U - Leakage testing instrument for mechanical seal - Google Patents
Leakage testing instrument for mechanical seal Download PDFInfo
- Publication number
- CN202710256U CN202710256U CN 201220394222 CN201220394222U CN202710256U CN 202710256 U CN202710256 U CN 202710256U CN 201220394222 CN201220394222 CN 201220394222 CN 201220394222 U CN201220394222 U CN 201220394222U CN 202710256 U CN202710256 U CN 202710256U
- Authority
- CN
- China
- Prior art keywords
- mechanical seal
- upper flange
- flange
- lower flange
- leak test
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a leakage testing instrument for a mechanical seal. The leakage testing instrument is characterized by comprising an upper flange and a lower flange, wherein a connecting rod is arranged between the upper flange and the lower flange, an upper end of the connecting rod is provided with a screw which penetrates through the upper flange and is coaxial with the upper flange, and the screw is matched with a pre-tightening nut; the lower end of the connecting rod is provided with an annular convex boss, the annular convex boss is provided with an axial supporting bearing which is coaxial with the screw, the axial supporting bearing is pressed by a pressing block, and the pressing block is connected with the lower flange; and the upper flange is connected with a pressurizing mouth. The leakage testing instrument for mechanical seal can detect the old and new mechanical seals, avoids the repeated assembly and disassembly caused by installation without detecting the mechanical seal during maintenance, can be used for the grinding and repairing detection, and can save a great amount of cost for enterprises; and the instrument has the advantages of reasonable structure, simple manufacturing process, good effect, low cost and strong practicability, and is suitable for popularization and application in the field of pump maintenance.
Description
Technical field
The utility model relates to a kind of checkout equipment of mechanical seal for pump, and particularly a kind of mechanical seal leak test instrument can carry out sealing detection to the mechanical seal mating surface.
Background technology
Mechanical seal is the main accurate accessory that is used on the pump, it mainly is configured to stationary ring and rotating ring, cost is high, consumption is large, its sealing surface easily is out of shape the generation seepage, particularly new mechanical seal is placed and is surpassed half a year, sealing surface is because effect of stress produces distortion, cause thus sealing to produce seepage, if sealing surface is not carried out the seepage experiment, just easily cause installing unsuccessfully, wasted a large amount of manpowers, although material resources are sometimes for avoiding seepage that sealing surface is carried out milled processed, but or there is not the mechanical seal after good method check is ground whether qualified, whether present professional checkout equipment too expensive, the check mechanical sealing surface of using when also not being applicable to keep in repair qualified instrument, owing to there not be the instrument checked, a lot of wastes have been caused, also caused a lot of the installation unsuccessfully, still needed technological innovation, a kind of testing tool of Simple low-cost is provided.
The utility model content
In order to solve the disappearance of instrument in the above-mentioned maintenance process, the utility model provides a kind of mechanical seal leak test instrument, can detect sealing surface before mechanical seal is installed, and avoids repeatedly dismantling.
The technical solution adopted in the utility model is: a kind of mechanical seal leak test instrument, it is characterized in that comprising upper flange and lower flange, be provided with connecting rod between upper flange and lower flange, small end is provided with from upper flange and passes and the screw rod coaxial with upper flange, is combined with pre-load nut on the screw rod; The connecting rod lower end is provided with annular boss, and annular boss is provided with the axial load bearing with screw coaxial, axially is pressed with briquetting on the load bearing, and briquetting is connected with lower flange; Be connected with the pressurization mouth on the upper flange.
Described upper flange is bolted and remains the test mechanical stationary seal ring, and lower flange is bolted and remains the test mechanical moving sealing ring.
Between described upper flange and stationary ring, be respectively equipped with sealing gasket one between lower flange and rotating ring.
Be provided with sealing gasket two between described small end and upper flange.
Described briquetting is that pipe nipple is connected with lower flange by external thread with inner convex platform and externally threaded pipe nipple, cooperates with the pipe nipple external thread to be provided with set nut.
Be connected with forcing pipe on the described pressurization mouth, be connected with tensimeter and pressurization valve on the forcing pipe, be provided with valve inside in the pressurization valve.
Circumferentially be distributed with mounting hole on described upper flange and the lower flange.
Described mounting hole is on the circumference of two above different radiis, and mounting hole is connected with sealing bolt.
The utility model is docking together stationary ring and the rotating ring of mechanical seal, upper lower flange seals its internal cavity by pre-load nut, carry out fluid injection and suppress leak test, upper lower flange pretension is provided with axial load bearing between connecting, can be with that dynamic and static ring is relative with rotating ring rotates, the sealing surface that is under the different rotary coincidence angle state is carried out leak test, can detect new and old mechanical seal, the repeated disassembled and assembled that causes is not just installed in mechanical seal after testing when avoiding keeping in repair, and is used for grinding repairing and detects, can save a large amount of expenses for enterprise, this apparatus structure is reasonable, and manufacture craft is simple, and is effective, cost is low practical, is suitable for applying in pump maintenance field.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram.
Number in the figure title: 1 upper flange; 2 lower flanges; 3 connecting rods; 4 screw rods; 5 pre-load nuts; 6 annular boss; 7 axial load bearings; 8 pipe nipples; 9 stationary rings; 10 rotating rings; 11 sealing gaskets one; 12 set nuts; 13 tensimeters; 14 pressurization valves, 15 sealing gaskets two.
Embodiment
The utility model embodiment as shown in Figure 1, this mechanical seal leak test instrument is provided with upper flange 1 and lower flange 2,2 of upper flange 1 and lower flanges are provided with connecting rod 3, connecting rod 3 upper ends are provided with from upper flange 1 and pass and the screw rod 4 coaxial with upper flange 1, be combined with pre-load nut 5 on the screw rod 4,1 of connecting rod 3 upper ends and upper flange are provided with sealing gasket 2 15; Connecting rod 3 lower ends are provided with annular boss 6, annular boss 6 is provided with the axial load bearing 7 coaxial with screw rod 4, axially be pressed with briquetting on the load bearing 7, briquetting is with inner convex platform and externally threaded pipe nipple 8, pipe nipple 8 is connected with lower flange 2 by external thread, be used for regulating the axial location that limits annular boss 6, consistance with the mechanical seal decrement that guarantees different axial lengths, cooperate with pipe nipple 8 external threads and to be provided with set nut 12, the locking that is used for after pipe nipple 8 is regulated is fixed, upper flange 1 can rotate relatively with lower flange 2, and axially load bearing 7 arranges friction force in the time of can reducing to rotate; Be connected with the pressurization mouth on the upper flange 1, be connected with forcing pipe on the pressurization mouth, be connected with tensimeter 13 and pressurization valve 14 on the forcing pipe, be provided with valve inside in the valve 14 that pressurizes; Circumferentially be distributed with mounting hole on upper flange 1 and the lower flange 2, upper flange 1 and lower flange 2 are by mounting hole, bolt seal pad 1 and be connected with respectively the stationary ring 9 of mechanical seal to be tested and the rotating ring 10 of mechanical seal to be tested.During use, to need stationary ring 9 and the rotating ring 10 of test mechanical sealing to be installed in respectively upper flange 1 and lower flange 2, regulate pipe nipple 8 and use set nut 12 lockings according to the axial length of stationary ring 9 and rotating ring 10, stationary ring 9 and rotating ring 10 are docking together, screw pre-load nut 5 and make sealing gasket 2 15 press seals, upper flange 1, stationary ring 9, lower flange 2 and rotating ring 10 form an airtight cavity, and this moment, the decrement of stationary ring 9 was controlled between 4.5mm to 5.5mm; Unload pressurization valve 14 and its inner valve inside, add the liquid testing medium, valve inside and pressurization valve 14 are installed, door 14 is suppressed to airtight cavity by calming the anger, after observation tensimeter 13 reaches required test pressure, rotation lower flange 2 drives rotating ring 10 relative stationary rings 9 and does the friction spinning movement, and whether observe each anglec of rotation lower sealing surface has leakage; This instrument can detect new and old mechanical seal, the repeated disassembled and assembled that causes is not just installed in mechanical seal after testing when avoiding keeping in repair, be used for grinding repairing and detect, can save a large amount of expenses for enterprise, this apparatus structure is reasonable, and manufacture craft is simple, and is effective, cost is low practical, is suitable for applying in pump maintenance field.
The utility model can also be arranged on mounting hole on the circumference of two above different radiis when implementing, and mounting hole is connected with sealing bolt, can be suitable for the leak-testing of different bore mechanical seals, a tractor serves several purposes.
Claims (8)
1. mechanical seal leak test instrument, it is characterized in that comprising upper flange (1) and lower flange (2), be provided with connecting rod (3) between upper flange (1) and lower flange (2), connecting rod (3) upper end is provided with from upper flange (1) to be passed and the screw rod (4) coaxial with upper flange (1), is combined with pre-load nut (5) on the screw rod (4); Connecting rod (3) lower end is provided with annular boss (6), and annular boss (6) is provided with the axial load bearing (7) coaxial with screw rod (4), axially is pressed with briquetting on the load bearing (7), and briquetting is connected with lower flange (2); Be connected with the pressurization mouth on the upper flange (1).
2. mechanical seal leak test instrument according to claim 1 is characterized in that described upper flange (1) is bolted to remain test mechanical stationary seal ring (9), and lower flange (2) is bolted and remains test mechanical moving sealing ring (10).
3. mechanical seal leak test instrument according to claim 2 is characterized in that between described upper flange (1) and stationary ring (9), is respectively equipped with sealing gasket one (11) between lower flange (2) and rotating ring (10).
4. mechanical seal leak test instrument according to claim 1 is characterized in that being provided with sealing gasket two (15) between described connecting rod (3) upper end and upper flange (1).
5. mechanical seal leak test instrument according to claim 1, it is characterized in that described briquetting is with inner convex platform and externally threaded pipe nipple (8), pipe nipple (8) is connected with lower flange (2) by external thread, cooperates with pipe nipple (8) external thread to be provided with set nut (12).
6. mechanical seal leak test instrument according to claim 1 is characterized in that being connected with forcing pipe on the described pressurization mouth, is connected with tensimeter (13) and pressurization valve (14) on the forcing pipe, is provided with valve inside in the pressurization valve (14).
7. mechanical seal leak test instrument according to claim 1 is characterized in that circumferentially being distributed with mounting hole on described upper flange (1) and the lower flange (2).
8. mechanical seal leak test instrument according to claim 7 is characterized in that described mounting hole is on the circumference of two above different radiis, and mounting hole is connected with sealing bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394222 CN202710256U (en) | 2012-08-10 | 2012-08-10 | Leakage testing instrument for mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394222 CN202710256U (en) | 2012-08-10 | 2012-08-10 | Leakage testing instrument for mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202710256U true CN202710256U (en) | 2013-01-30 |
Family
ID=47590547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220394222 Expired - Fee Related CN202710256U (en) | 2012-08-10 | 2012-08-10 | Leakage testing instrument for mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202710256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595964A (en) * | 2017-02-24 | 2017-04-26 | 广州安卓机械科技有限公司 | Novel mechanical sealing test tooling |
| CN107525631A (en) * | 2017-10-23 | 2017-12-29 | 广州凯里莱电气机械有限公司 | A kind of air-tightness static pressure testing device of rotating ring compensation integrated mechanical sealing |
-
2012
- 2012-08-10 CN CN 201220394222 patent/CN202710256U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595964A (en) * | 2017-02-24 | 2017-04-26 | 广州安卓机械科技有限公司 | Novel mechanical sealing test tooling |
| CN107525631A (en) * | 2017-10-23 | 2017-12-29 | 广州凯里莱电气机械有限公司 | A kind of air-tightness static pressure testing device of rotating ring compensation integrated mechanical sealing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9631990B2 (en) | Device for testing mechanical seal performance | |
| CN108845038B (en) | Valve hydrostatic test device and test method | |
| CN202710256U (en) | Leakage testing instrument for mechanical seal | |
| CN204758235U (en) | Boats and ships stern shaft seal pressure testing device | |
| CN203627882U (en) | Up-mounted type ball valve with valve seat capable of being quickly dismounted and maintained online | |
| CN109752141A (en) | A kind of mechanical seal product testing processing unit (plant) and method | |
| CN204003791U (en) | Oil hydraulic motor testing apparatus | |
| CN115541134A (en) | Low-temperature high-speed double-station end face seal test device and method for hydrogen-oxygen turbine pump | |
| CN205426520U (en) | Oily formula antifriction bearing life -span intensified test machine | |
| CN107063575A (en) | A kind of high deceleration device shaft end seal experimental rig | |
| CN206488903U (en) | Pressure pipeline weld seam detection means | |
| CN203853554U (en) | Hydraulic pretensioning structure for bearing | |
| CN111267031B (en) | Device for disassembling and assembling mechanical seal and disassembling and assembling method thereof | |
| CN202453158U (en) | Quick leakage detection fixture for metal corrugated pipe compensator | |
| CN202305201U (en) | Test rotary table for central swivel joints | |
| CN201173294Y (en) | Air shaft sealing device | |
| CN104266799B (en) | Test bench for ship shafting end face sealing device | |
| CN203363229U (en) | Quick-change valve with online-detachable valve plate and valve seat | |
| CN206311332U (en) | A kind of Multi-cylinder axial loading system | |
| RU176941U1 (en) | STAND FOR TEST SEALING SEALS | |
| CN106898393A (en) | A kind of main pump hydraulic part static pressure test two, three-level seals analogue means | |
| CN210719535U (en) | Mechanical seal leakage test instrument | |
| CN204241167U (en) | Marine shafting face seals testing table | |
| CN204330476U (en) | Fatigue tester friction pair | |
| CN2916118Y (en) | High-pressure valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20150810 |
|
| EXPY | Termination of patent right or utility model |