CN216815859U - Mechanical seal inspection device - Google Patents
Mechanical seal inspection device Download PDFInfo
- Publication number
- CN216815859U CN216815859U CN202220180878.8U CN202220180878U CN216815859U CN 216815859 U CN216815859 U CN 216815859U CN 202220180878 U CN202220180878 U CN 202220180878U CN 216815859 U CN216815859 U CN 216815859U
- Authority
- CN
- China
- Prior art keywords
- mechanical seal
- simulation
- inspection device
- sets
- flange
- 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
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a mechanical seal inspection device, comprising: base, mounting flange, simulation axle, pressure pump, lock nut, first clamping ring, sealed cavity and moment spanner, the vertical setting of mounting flange is on the base, sealed cavity sets up the back at mounting flange, mechanical seal sets up the front at mounting flange, the simulation axle sets up in sealed cavity, the simulation axle front end runs through mechanical seal with one heart and extends to mechanical seal's the place ahead, first clamping ring sets up at the epaxial front end that lies in mechanical seal of simulation, lock nut sets up at the epaxial place ahead that lies in first clamping ring of simulation, moment spanner sets up carries out rotary drive at the front end of simulation axle, be provided with the water pipe between pressure pump output and the sealed cavity. Through the mode, the mechanical seal inspection device can judge whether the dynamic and static rings of the mechanical seal are stuck in an attraction mode or not, and performs the inspection on the sealing performance.
Description
Technical Field
The utility model relates to the technical field of mechanical seal, in particular to a mechanical seal inspection device.
Background
The double-end-face mechanical seal is provided with two sealing friction pairs and is suitable for media which are poor in self lubricity, toxic and volatile. When the double-end-face mechanical seal works, the end faces perpendicular to the rotation axis are kept in fit and relatively slide under the action of fluid pressure and the elastic force of the compensation mechanism and the cooperation of the auxiliary seal, and fluid leakage is prevented.
The installation of mechanical seals is highly skilled for workers and, in the event of a water leak, the pump may be disassembled again, resulting in rework. With the improvement of installation skills of maintainers, the quality problem of mechanical seal caused by mechanical seal water leakage is discovered, namely, a dynamic and static joint surface cannot meet the sealing requirement when leaving a factory. Because many mechanical seal are all the self-contained type at present, because move quiet composition surface friction pair and probably have minute defect or internal seal ring damage, this kind of mechanical seal's problem is difficult to be found in advance. In order to reduce the rework condition after the mechanical seal is installed, a mechanical seal inspection tool needs to be manufactured, and the defects of the mechanical seal are eliminated before the mechanical seal installation.
In addition, the mechanical seal has the problem of blocking, and when the mechanical seal is disassembled, the surface smoothness of the sealing surfaces of the movable ring and the static ring of the mechanical seal is high, the two sealing surfaces are firmly attached together, and the sealing surfaces of the movable ring and the static ring need to be soaked in hot water to separate the two sealing surfaces.
The double-end mechanical seal and the single-end mechanical seal have different structures and different sizes, the double-end mechanical seal inspection tool is not necessarily suitable for the inspection of the single-end mechanical seal, 2 sets of inspection devices need to be prepared, the cost is high, and the improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a mechanical seal inspection device, which is used for inspecting the locking condition and the sealing property of a mechanical seal, improving the simplicity and convenience of operation and reducing the cost.
In order to solve the technical problems, the utility model adopts a technical scheme that: provided is a mechanical seal inspection device including: base, mounting flange, simulation axle, pressure pump, lock nut, first clamping ring, sealed cavity and moment spanner, the vertical setting of mounting flange is on the base, sealed cavity sets up the back at mounting flange, mechanical seal sets up the front at mounting flange, the simulation axle sets up in sealed cavity, the simulation axle front end runs through mechanical seal with one heart and extends to mechanical seal's the place ahead, first clamping ring sets up at the epaxial front end that lies in mechanical seal of simulation, lock nut sets up at the epaxial place ahead that lies in first clamping ring of simulation, moment spanner sets up carries out rotary drive at the front end of simulation axle, be provided with the water pipe between pressure pump output and the sealed cavity.
In a preferred embodiment of the present invention, the fixing flange is provided therein with a through hole communicating with a sealed chamber, the top of the sealed chamber is provided with a vent valve, and the bottom of the sealed chamber is provided with a drain valve.
In a preferred embodiment of the present invention, the simulation shaft is provided with a limiting disc at the tail end thereof.
In a preferred embodiment of the utility model, the outer circle of the simulation shaft is provided with a section of external thread corresponding to the locking nut, and the front end of the simulation shaft is provided with an external hexagonal column corresponding to the torque wrench.
In a preferred embodiment of the present invention, the water pipe is provided with a first pressure gauge and a check valve.
In a preferred embodiment of the utility model, the mechanical seal is a double-end mechanical seal, the double-end mechanical seal is fixed on the front surface of the fixed flange through fastening bolts, and the double-end mechanical seal is provided with a water inlet and a water outlet.
In a preferred embodiment of the present invention, the present invention further comprises a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is connected to the water inlet, the water outlet pipe is connected to the water outlet, the water inlet pipe and the water outlet pipe are respectively provided with a second pressure gauge, the water inlet pipe is provided with a first valve, and the water outlet pipe is provided with a second valve.
In a preferred embodiment of the present invention, the mechanical seal is a single-end mechanical seal, the mechanical seal inspection apparatus further includes an elongated bolt, an intermediate flange, and a second pressing ring, the intermediate flange is sleeved on the simulation shaft and is located between the locking nut and the first pressing ring, the second pressing ring is sleeved on the simulation shaft and is located between the intermediate flange and the locking nut, a plurality of elongated bolts distributed in an annular array penetrate through the intermediate flange and the mechanical seal and are connected with the fixed flange, the elongated bolt is provided with a first nut located on the front face of the fixed flange, and the elongated bolt is provided with a second nut located on the front face and the back face of the intermediate flange.
In a preferred embodiment of the present invention, a bearing between the first pressing ring and the second pressing ring is disposed in the intermediate flange.
The utility model has the beneficial effects that: the mechanical seal inspection device is convenient to assemble, can judge whether the dynamic and static rings of the mechanical seal are stuck or not under the condition that the mechanical seal is not disassembled, can perform simulated operation, realizes the inspection of the sealing property, is flexible to use, can be suitable for the inspection of double-end mechanical seal and single-end mechanical seal, and reduces the inspection cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural view of a preferred embodiment of a mechanical seal inspection apparatus of the present invention;
FIG. 2 is a schematic structural view of another preferred embodiment of a mechanical seal inspection apparatus of the present invention;
fig. 3 is a schematic view of the structure of the dummy shaft of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious 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.
Referring to fig. 1 to 3, an embodiment of the utility model includes:
example 1:
the mechanical seal inspection apparatus shown in fig. 1 and 3 includes: base 1, mounting flange 2, simulation axle 8, the pump 17 of beating, lock nut 10, first clamping ring 12, sealed cavity 3, moment spanner 9, inlet tube 15 and outlet pipe 27, in this embodiment, mechanical seal adopts double mechanical seal 13, carries out the inspection of double mechanical seal 13.
The fixing flange 2 is vertically arranged on the base 1 and is welded and fixed, and the structure is firm. Sealed cavity 3 sets up at mounting flange 2's back, also can carry out welded fastening, is provided with the through-hole with sealed cavity 3 intercommunication in mounting flange 2, conveniently carries out mechanical seal's inspection.
The double-end-face mechanical seal 13 is arranged on the front face of the fixing flange 2, and in the embodiment, the double-end-face mechanical seal 13 is fixed on the front face of the fixing flange 2 through the fastening bolts 4, so that the structure is firm, and the disassembly is convenient. Simulation axle 8 sets up in sealed chamber 3, and 8 front ends of simulation axle run through mechanical seal and extend to mechanical seal's the place ahead with one heart, and as shown in fig. 3, the tail end of simulation axle 8 is provided with spacing dish 83, cooperates with mechanical seal through spacing dish 83, and it is spacing and sealed to simulate axle 8's tail end, conveniently inspects the problem of leaking water. Simulation axle 8 and spacing dish 83 can adopt integration stainless steel, avoid the corrosion problem.
Set up first clamping ring 12 on simulation axle 8 and be located mechanical seal's front end, lock nut 10 sets up on simulation axle 8 and is located the place ahead of first clamping ring 12, in this embodiment, is provided with one section external screw thread 82 that corresponds with lock nut 10 on the simulation axle 8 excircle, conveniently carries out lock nut 10's rotation, carries out the fastening of first clamping ring 12 for first clamping ring 12 can rotate with mechanical seal's rotating ring is synchronous.
Be provided with water pipe 20 between booster pump 17 output and the sealed cavity 3, in this embodiment, be provided with first manometer 6 and check valve 7 on the water pipe 20, conveniently inject the water of certain pressure into sealed cavity 3 through booster pump 17. The top of the sealed cavity 3 is provided with an exhaust valve 5, the sealed cavity 3 is opened to exhaust, the sealed cavity 3 is ensured to be filled with water, the bottom of the sealed cavity 3 is provided with a drain valve 18, water can be drained after the sealed cavity is opened, and the mechanical seal can be conveniently detached.
The double-end-face mechanical seal 13 is provided with a water inlet 14 and a water outlet 11, the water inlet pipe 15 is connected with the water inlet 14, the water outlet pipe 27 is connected with the water outlet 11, and water supply and drainage of the double-end-face mechanical seal 13 are carried out. The water inlet pipe 15 is provided with a first valve 19, the water outlet pipe 27 is provided with a second valve 28, the water inlet pipe 15 can be externally connected with a tap water pipe or a water pump, the first valve 19 is opened to supply water to the double-end mechanical seal 13, and the second valve 28 is opened to drain water. The water inlet pipe 15 and the water outlet pipe 27 are respectively provided with a second pressure gauge 16 for monitoring water pressure, and the water pressure is monitored by adjusting the opening degree of the first valve 19 and the second valve 28, so that the water pressure is ensured to accord with the operation condition.
At this time, the torque wrench 9 rotates the dummy shaft 8, and the double mechanical seal 13 is checked for water leakage, and if water does not leak, it indicates that the seal is good, and the machine can be installed.
Example 2:
unlike embodiment 1, in this embodiment, the mechanical seal is a single-end mechanical seal 21, and the fastening bolt 4, the water inlet pipe 15, and the water outlet pipe 27 are not required, and the structure is otherwise based on embodiment 1.
In addition, as shown in fig. 3, the mechanical seal inspection device further includes a lengthened bolt 24, an intermediate flange 22 and a second pressing ring 23, the intermediate flange 22 is sleeved on the simulation shaft 8 and is located between the lock nut 10 and the first pressing ring 12, and the second pressing ring 23 is sleeved on the simulation shaft 8 and is located between the intermediate flange 22 and the lock nut 10.
A plurality of elongated bolts 24 distributed in an annular array penetrate through the intermediate flange 22 and the single-end-face mechanical seal 21 and are connected with the fixing flange 2, and in the embodiment, first nuts 26 positioned on the front face of the fixing flange are arranged on the elongated bolts 24, so that the single-end-face mechanical seal 21 is fixed on the fixing flange 2. In addition, the second nuts 25 positioned on the front surface and the back surface of the intermediate flange 22 are arranged on the lengthened bolts 24, so that the intermediate flange 22 is fixed, two purposes are achieved at one time, and the assembly is convenient.
In conclusion, the mechanical seal inspection device provided by the utility model can be used for detecting the single-end-face mechanical seal and the double-end-face mechanical seal, is compact in structure and low in cost, can be used for inspecting whether the moving and static rings of the single-end-face mechanical seal and the double-end-face mechanical seal are stuck or not in an attraction manner, can be used for simulating the operation of the shaft 8, and is simple and convenient to operate by inspecting the tightness through whether water leaks or not.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, or direct or indirect applications in other related fields, which are made by the contents of the present specification, are included in the scope of the present invention.
Claims (9)
1. A mechanical seal inspection device for inspecting a mechanical seal, comprising: base, mounting flange, simulation axle, pressure pump, lock nut, first clamping ring, sealed cavity and moment spanner, the vertical setting of mounting flange is on the base, sealed cavity sets up the back at mounting flange, mechanical seal sets up the front at mounting flange, the simulation axle sets up in sealed cavity, the simulation axle front end runs through mechanical seal with one heart and extends to mechanical seal's the place ahead, first clamping ring sets up at the epaxial front end that lies in mechanical seal of simulation, lock nut sets up at the epaxial place ahead that lies in first clamping ring of simulation, moment spanner sets up carries out rotary drive at the front end of simulation axle, be provided with the water pipe between pressure pump output and the sealed cavity.
2. The mechanical seal inspection device of claim 1, wherein the fixing flange is provided with a through hole communicated with a sealed chamber, the top of the sealed chamber is provided with an exhaust valve, and the bottom of the sealed chamber is provided with a drain valve.
3. The mechanical seal inspection device of claim 1, wherein a stop disk is provided at a trailing end of the dummy shaft.
4. The mechanical seal inspection device of claim 1, wherein a section of external thread corresponding to the lock nut is arranged on the outer circle of the simulation shaft, and an external hexagonal column corresponding to the torque wrench is arranged at the front end of the simulation shaft.
5. The mechanical seal inspection device of claim 1, wherein a first pressure gauge and a one-way valve are provided on the water pipe.
6. The mechanical seal inspection device of claim 1, wherein the mechanical seal is a double-end mechanical seal, the double-end mechanical seal is fixed on the front face of the fixed flange through fastening bolts, and the double-end mechanical seal is provided with a water inlet and a water outlet.
7. The mechanical seal inspection device of claim 6, further comprising a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is connected to the water inlet, the water outlet pipe is connected to the water outlet, the water inlet pipe and the water outlet pipe are respectively provided with a second pressure gauge, the water inlet pipe is provided with a first valve, and the water outlet pipe is provided with a second valve.
8. The mechanical seal inspection device of claim 1, wherein the mechanical seal is a single-end mechanical seal, the mechanical seal inspection device further comprises an elongated bolt, an intermediate flange and a second pressing ring, the intermediate flange is sleeved on the simulation shaft and is located between the locking nut and the first pressing ring, the second pressing ring is sleeved on the simulation shaft and is located between the intermediate flange and the locking nut, a plurality of elongated bolts distributed in an annular array penetrate through the intermediate flange and the mechanical seal and are connected with the fixed flange, the elongated bolt is provided with a first nut located on the front face of the fixed flange, and the elongated bolt is provided with a second nut located on the front face and the back face of the intermediate flange.
9. The mechanical seal inspection device of claim 8, wherein a bearing between the first and second clamping rings is disposed in the intermediate flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220180878.8U CN216815859U (en) | 2022-01-24 | 2022-01-24 | Mechanical seal inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220180878.8U CN216815859U (en) | 2022-01-24 | 2022-01-24 | Mechanical seal inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216815859U true CN216815859U (en) | 2022-06-24 |
Family
ID=82066349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220180878.8U Active CN216815859U (en) | 2022-01-24 | 2022-01-24 | Mechanical seal inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216815859U (en) |
-
2022
- 2022-01-24 CN CN202220180878.8U patent/CN216815859U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204027782U (en) | A kind of aviation rubber film tightness test device | |
| CN110220652B (en) | Dynamic simulation test device for sealing reliability of valve seat of deep sea gate valve | |
| CN111981216B (en) | Pressure gas pipeline flange | |
| CN216815859U (en) | Mechanical seal inspection device | |
| CN215635114U (en) | Prevent leaking ball valve with alarming function | |
| CN112748018B (en) | Marine glass fiber reinforced plastic GRE pipe external pressure test device with reliable sealing | |
| CN213874830U (en) | Deep sea combination seal circle seal test device | |
| CN107355543B (en) | External flushing built-in bearing cartridge type mechanical seal | |
| CN213902779U (en) | Deep sea rotating machinery seal test device | |
| CN108730668A (en) | Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching | |
| CN210890503U (en) | Stop valve with quick butt joint ring flange | |
| CN202710256U (en) | Leakage testing instrument for mechanical seal | |
| CN204153147U (en) | Pumping anti-leak mechanical seal device | |
| CN208735101U (en) | Reactor fluid power gate leakage monitor | |
| CN210318658U (en) | Straight-through stop valve with good sealing performance | |
| CN216643416U (en) | Low temperature is sealed rotary joint for loading | |
| CN220979916U (en) | Shaft end sealing structure of high-temperature fan | |
| CN220705970U (en) | Vertical water pump check out test set | |
| CN216479180U (en) | High-stability pneumatic ball valve | |
| CN221123675U (en) | Manometer coupling mechanism | |
| CN218377169U (en) | Leak-proof sealed hydraulic element | |
| CN209959899U (en) | Self-sealing stop valve | |
| CN219552108U (en) | Rotary framework oil seal detection component | |
| CN210571247U (en) | Valve detection device is used in pipeline valve processing | |
| CN219914760U (en) | End face floating seal test component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |