CN206847932U - A kind of inner pressed liquid film seal transient state leakage rate harvester - Google Patents
A kind of inner pressed liquid film seal transient state leakage rate harvester Download PDFInfo
- Publication number
- CN206847932U CN206847932U CN201720772227.7U CN201720772227U CN206847932U CN 206847932 U CN206847932 U CN 206847932U CN 201720772227 U CN201720772227 U CN 201720772227U CN 206847932 U CN206847932 U CN 206847932U
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- Prior art keywords
- ring
- connecting plate
- axle sleeve
- transient state
- protective cover
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Abstract
A kind of inner pressed liquid film seal transient state leakage rate harvester, including rotating shaft, cavity, connecting plate, spring base, throw-out collar, stationary ring, rotating ring, snap ring, protective cover, gland, axle sleeve and locking nut, shock sensors are formed, the connecting plate is fixed on cavity by screw, the spring base is connected with connecting plate, the stationary ring is connected with throw-out collar, the snap ring is fixed on spring base, the rotating ring is installed on axle sleeve, the gland is connected with axle sleeve, the axle sleeve is connected by locking nut with rotating shaft, the protective cover is connected with connecting plate, the shock sensors are fixed on the inside of protective cover, sensitive surface is perpendicular to sound loop interface.Beneficial effect：Mass flow rate signal is converted to by impacting force signal measured by sensor, completes the measurement to fluid-film sealing device transient state leakage rate changing rule, while the lubricating status of seal face can be determined whether.
Description
Technical field：
A kind of hydrodynamic lubrication non-contact mechanical seal device is the utility model is related to, belongs to fluid dynamic sealing experimental provision
Field.
Background technology：
Typical Representative of the upstream pumping mechanical seal as liquid film seal, it is effectively improved lubrication state and the behaviour of seal face
Make stability, be widely used in the industries such as petrochemical industry, military project apparatus, metallurgical electric power.Although end face liquid film effectively reduces close
The fretting wear of seal ring, but due to frequent start-stop, operate operating mode transient changing, lubricating end surface deficiency, axially misalign deviation,
The reasons such as vibratory impulse cause sound ring surface serious polishing scratch occur, more notably cause sealing ring brittle fracture.Therefore to close
The research of envelope transient response is to ensure the key of its reliability service.Sealing transient state parameter has extremely complex changing rule, becomes
Change frequency is fast, and amplitude is larger, and conventional measuring apparatus is difficult to carry out its process related collection and measurement, is asked based on above-mentioned
Topic, it would be highly desirable to design a kind of information collecting device and the lubricating status of end face be monitored, with will pass through measurement to leakage rate and
When monitor end face frictional wear situation, improve equipment operation stability and security.
Utility model content：
For effectively monitoring liquid film seal lubricating end surface state and leakage rate, there is provided a kind of inner pressed liquid film seal transient state is let out
Leakage quantity harvester, mass flow rate signal is converted to by impacting force signal measured by sensor, is completed to fluid-film sealing device
The measurement of transient state leakage rate changing rule, there is very strong practicality.
The technical scheme is that：
A kind of inner pressed liquid film seal transient state leakage rate harvester, it is characterised in that：Including cavity, connecting plate, spring
It is seat, spring, throw-out collar, O-ring, stationary ring, axle sleeve, soket head cap screw, protective cover, snap ring, pole, shock sensors, nut, dynamic
Ring, gland, locking nut, rotating shaft, data collecting card, signal processing apparatus, the connecting plate are fixed on by soket head cap screw
On cavity, the spring base is connected with connecting plate, and the stationary ring is connected with throw-out collar, and the snap ring is fixed on spring base, described dynamic
Ring is installed on axle sleeve, and the gland is connected by soket head cap screw with axle sleeve, and the axle sleeve is connected by locking nut with rotating shaft,
The protective cover is connected by soket head cap screw with connecting plate, and in the shock sensors installation and pole, pole passes through spiral shell
Mother is fixed on protective cover, and shock sensors, data collecting card and signal processing apparatus are sequentially connected by circuit.
The shock sensors sensitive surface is perpendicular to sound loop interface.
The good effect that the utility model has：
The device is formed with relatively certain by the interstitial fluid of seal face under centrifugal action caused by rotation
The drop of kinetic energy impinges upon the shock wave formed in sensitive surface and is converted into power, is further asked according to current rotating speed using theorem of kinetic energy
Quality is obtained, is realized using high-precision force sensor and modern high speed acquisition system, and related professional software to impulsive force
And the monitoring and measurement of the whole process of the quality change situation after conversion, so as to which the transient state leakage rate sealed changes rule
Rule.In addition, the device has the advantages that high accuracy, versatility, senses sensitive, high-frequency collection, diversified forms are applicable to
Liquid film seal leakage rate gathers.
Brief description of the drawings
Fig. 1：A kind of inner pressed liquid film seal transient state leakage rate harvester structural representation；
Fig. 2：A kind of inner pressed liquid film seal transient state leakage rate harvester partial structural diagram；
Fig. 3：A kind of inner pressed liquid film seal transient state leakage rate harvester fundamental diagram.
Embodiment
Below in conjunction with the embodiment of accompanying drawing illustrated embodiment, the above of the present utility model is remake further
Describe in detail.
A kind of as shown in figure 1, inner pressed liquid film seal transient state leakage rate harvester, it is characterised in that：Including cavity
(1), connecting plate (2), spring base (3), spring (4), throw-out collar (5), O-ring (6,8,9,19,20,23), stationary ring (7), axle sleeve
(10), soket head cap screw (11,12,22), protective cover (13), snap ring (14), pole (15), shock sensors (16), nut
(17), rotating ring (18), gland (21), locking nut (24), rotating shaft (25), data collecting card (26), signal processing apparatus (27),
The connecting plate (2) is fixed on cavity (1) by soket head cap screw (12), and the spring base (3) is connected with connecting plate (2),
The stationary ring (7) is connected with throw-out collar (5), and the snap ring (14) is fixed on spring base (3), and the rotating ring (18) is installed on axle sleeve
(10), the gland (21) is connected by soket head cap screw (22) with axle sleeve (10), and the axle sleeve (10) passes through locking nut
(24) it is connected with rotating shaft (25), the protective cover (13) is connected by soket head cap screw (11) with connecting plate (2), the impact
In force snesor (16) installation and pole (15), pole (15) is fixed on protective cover, shock sensors by nut (17)
(16), data collecting card (26) and signal processing apparatus (27) are sequentially connected by signal wire.
The shock sensors sensitive surface (M) is perpendicular to sound loop interface (N).
Harvester fundamental diagram is as shown in figure 3, liquid is hit at a high speed under centrifugal action caused by rotating shaft (25) rotation
Shock sensors (16) can be become voltage output by impulsive force, data acquisition device (26) when hitting striking face (M)
The voltage signal acquisition of device is sent, completes the measurement that drop hits moment force value；Pass through signal processing apparatus (27) AD conversion function
Convert the voltage into data signal and force value is converted to electric signal through corresponding measuring circuit, will impact force transformation so as to complete
For the process of electric signal, the electric signal amplification that shock sensors export is turned into standard analog by high-precision integrated operational amplifier
Signal, quality is further tried to achieve using theorem of kinetic energy according to current rotating speed, utilize high-precision sensor and modern high speed acquisition
System, and related professional software realize the monitoring and survey to the whole process of the quality change situation after impulsive force and conversion
Amount.
Content described in this specification embodiment is only enumerating to the way of realization of utility model design, and this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, thinks not departing from the above-mentioned technology of the present invention
In the case of thinking, the various replacements or change made according to ordinary skill knowledge and customary means, this all should be included in
In the range of invention.
Claims (2)
- A kind of 1. inner pressed liquid film seal transient state leakage rate harvester, it is characterised in that：Including cavity (1), connecting plate (2), Spring base (3), spring (4), throw-out collar (5), O-ring (6,8,9,19,20,23), stationary ring (7), axle sleeve (10), soket head cap screw (11,12,22), protective cover (13), snap ring (14), pole (15), shock sensors (16), nut (17), rotating ring (18), pressure (21), locking nut (24), rotating shaft (25), data collecting card (26), signal processing apparatus (27) are covered, the connecting plate (2) is logical Cross soket head cap screw (12) to be fixed on cavity (1), the spring base (3) is connected with connecting plate (2), and the stationary ring (7) is with pushing away Ring (5) connects, and the snap ring (14) is fixed on spring base (3), and the rotating ring (18) is installed on axle sleeve (10), the gland (21) It is connected by soket head cap screw (22) with axle sleeve (10), the axle sleeve (10) is connected by locking nut (24) with rotating shaft (25), The protective cover (13) is connected by soket head cap screw (11) with connecting plate (2), shock sensors (16) installation and branch On bar (15), pole (15) is fixed on protective cover, shock sensors (16), data collecting card (26) and letter by nut (17) Number processing unit (27) is sequentially connected by circuit.
- A kind of 2. inner pressed liquid film seal transient state leakage rate harvester according to claim 1, it is characterised in that：It is described Shock sensors sensitive surface (M) is perpendicular to sound loop interface (N).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720772227.7U CN206847932U (en) | 2017-06-29 | 2017-06-29 | A kind of inner pressed liquid film seal transient state leakage rate harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720772227.7U CN206847932U (en) | 2017-06-29 | 2017-06-29 | A kind of inner pressed liquid film seal transient state leakage rate harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206847932U true CN206847932U (en) | 2018-01-05 |
Family
ID=60803476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720772227.7U Expired - Fee Related CN206847932U (en) | 2017-06-29 | 2017-06-29 | A kind of inner pressed liquid film seal transient state leakage rate harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206847932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491268A (en) * | 2019-08-16 | 2019-11-22 | 西南石油大学 | A kind of mechanical seal test device and method for experimental teaching |
-
2017
- 2017-06-29 CN CN201720772227.7U patent/CN206847932U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491268A (en) * | 2019-08-16 | 2019-11-22 | 西南石油大学 | A kind of mechanical seal test device and method for experimental teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20180629 |