CN103512685B - Sealing force testing device used for studying damping seal prerotation effect - Google Patents
Sealing force testing device used for studying damping seal prerotation effect Download PDFInfo
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- CN103512685B CN103512685B CN201310473490.2A CN201310473490A CN103512685B CN 103512685 B CN103512685 B CN 103512685B CN 201310473490 A CN201310473490 A CN 201310473490A CN 103512685 B CN103512685 B CN 103512685B
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- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 238000013016 damping Methods 0.000 title claims abstract description 29
- 230000000694 effects Effects 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 title abstract description 6
- 238000005303 weighing Methods 0.000 claims abstract description 7
- 210000003205 muscle Anatomy 0.000 claims description 65
- 238000009434 installation Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 16
- 239000011888 foil Substances 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 208000010040 Sprains and Strains Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- LTNZEXKYNRNOGT-UHFFFAOYSA-N dequalinium chloride Chemical compound [Cl-].[Cl-].C1=CC=C2[N+](CCCCCCCCCC[N+]3=C4C=CC=CC4=C(N)C=C3C)=C(C)C=C(N)C2=C1 LTNZEXKYNRNOGT-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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- Hydraulic Turbines (AREA)
Abstract
The invention discloses a sealing force testing device used for studying the damping seal prerotation effect. The sealing force testing device comprises a sealing cavity, a main shaft, a drive shaft and a water channel; the main shaft penetrates through the sealing cavity; a conductive slip ring assembly is arranged on the drive shaft, the drive shaft is connected with the main shaft through a resistance strain dynamometer, and the resistance strain dynamometer is in signal connection with the conductive slip ring assembly; the main shaft is provided with a sealing rotating component; a sealing stator is arranged corresponding to the position of the sealing rotating component, wherein a clearance leakage flow pass is formed by the sealing stator and the sealing rotating component, an outlet pipe is arranged on the sealing stator and communicated with the water channel, and the water channel is provided with a resistance strain weighing sensor; a prerotation shaft sleeve is arranged on the portion, where the sealing rotating component is located, of the main shaft; the outer wall face of the prerotation shaft sleeve is provided with a spiral groove; when the spiral groove rotates along with the main shaft, the rotating direction of the spiral groove points to the outlet end of an annular flow pass; the groove depth of the spiral groove is at least one third of the radial dimension of the annular flow pass, and the radial dimension of the annular flow pass is at least ten times that of the clearance leakage flow pass; the sealing cavity is provided with a flow pass inlet.
Description
Technical field
The present invention relates to and a kind ofly to prewhirl the sealing force proving installation of effect for studying damping seal, be applicable to the size of sealant flow muscle power in the leakage rate of the hermetically-sealed constructions such as impeller port ring in the hydraulic set such as the hydraulic turbine, multistage centrifugal pump, inter-stage sealing, balancing drum and restricted restricting bushing and sealing runner, particularly relate to entrance in operation operating mode and to prewhirl the test of the comparatively obvious damping seal of effect.
Background technology
The sixties in last century, Lomakin proposes sealing force shaft dynamic performance in two ends pressure reduction is larger under fast state centrifugal pump seal ring and stability has material impact, and the people such as external Black, Childs has done correlation theory to sealing force in smooth seal ring and derives and experimental study subsequently.The end of the eighties, Nordman proposes the damping seal formed by the mode such as fluting or boring in sealed stator or rotor seal face, as labyrinth seal, spiral labyrinch seal, honeycomb seal etc., compared with the smooth seal ring of identical physical dimension, be conducive under identical operating mode reducing seal leakage amount, and in its seal clearance, sealing force is conducive to improving shafting stability.Due to damping seal complex structure, form and physical dimension various, theoretical research can not well be predicted the sealing force size under its duty, therefore, the size setting up the damping seal different operating mode lower seal power of the dissimilar and size of a set of Accurate Measurement with general applicability is significant.
What is called is prewhirled effect, and namely sealing ring gap porch fluid circumferential speed size affects the velocity and pressuredistributions of gap inner fluid, and then has considerable influence to sealing force.In high pressure multiple-stage centrifugal pump, because size and structural limitations can not carry out com-parison and analysis separately to its sealing ring intensity of prewhirling, therefore the sealing force determinator setting up the different intensity of prewhirling of a set of adjustment comparatively is easily needed, realize the analysis and research that effect affects sealing force of prewhirling, tool is of great significance.
Therefore, ensureing under the prerequisite that hydraulic hydraulic efficiency meets the demands, increase damping seal to the Beneficial Effect of equipment dynamic stability as far as possible, just need the leakage rate of the damping seal under different structure under various operation operating mode and physical dimension and seal the size of sealant flow muscle power in runner and variation tendency is tested.For this reason, project planner wishes to design a set of proving installation with good versatility, can obtain the size of sealant flow muscle power in seal leakage amount and sealing runner for situation measurements such as different operating operating mode, different length-diameter ratio, different structure form, various geometric.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of structure and simply prewhirls the sealing force proving installation of effect for studying damping seal.
In order to solve the problems of the technologies described above, the invention provides and a kind ofly to prewhirl the sealing force proving installation of effect for studying damping seal, comprise by the annular seal space of entrance end cap and water conservancy diversion end cap composition, main shaft, driving shaft and tank; Described main shaft runs through annular seal space; Described driving shaft is provided with conducting slip ring assembly, the right-hand member of described driving shaft is connected with the left end of main shaft by resistance-strain type of dynamometer meter, and described resistance-strain type of dynamometer meter is connected with conducting slip ring component signals; The low order end of described main shaft is provided with sealed rotational part; Correspond to the position of sealed rotational part, water conservancy diversion end cap is provided with the sealed stator forming clearance leakage runner with sealed rotational part, sealed stator is provided with outlet, and described outlet is connected with tank, and the lower end of described tank is provided with resistance strain weighing transducer; Main shaft on the left of described sealed rotational part is provided with the axle sleeve of prewhirling forming annular channel with water conservancy diversion end cap; The outside wall surface of described axle sleeve of prewhirling is provided with helicla flute, helicla flute points to annular channel endpiece with precession direction during main axis, helicla flute groove depth is at least 1/3 of annular channel radial dimension, and the radial dimension of described annular channel is at least 10 times of clearance leakage runner radial dimension; Described inlet end bezel ring, is to being provided with 1 flow channel entry point.
To prewhirl the improvement of sealing force proving installation of effect for studying damping seal as to of the present invention: described resistance-strain type of dynamometer meter is also provided with dynamometer protective cover; Described dynamometer protective cover is provided with data conductor fairlead; Described resistance-strain type of dynamometer meter draws data conductor by wire fairlead, and described data conductor is connected with conducting slip ring assembly.
To prewhirl the further improvement of sealing force proving installation of effect for studying damping seal as to of the present invention: described resistance-strain type of dynamometer meter comprises two distortion muscle shaft collars, four rectangles distortion muscle and 36 sheet resistance foil gauges; Be uniformly distributed four rectangle distortion muscle between described two distortion muscle shaft collars, described every root rectangle distortion muscle arranges nine sheet resistance foil gauges respectively; The distortion muscle shaft collar of described one end is fixedly connected with driving shaft, and the distortion muscle shaft collar of described other one end is fixedly connected with main shaft; The distortion muscle shaft collar of described dynamometer protective cover and side interfixes, and described 36 sheet resistance foil gauges and data conductor are interconnected.
To prewhirl the further improvement of sealing force proving installation of effect for studying damping seal as to of the present invention: described conducting slip ring assembly comprises support, conducting slip ring rotating ring and conducting slip ring stationary ring; Described conducting slip ring moving ring sleeve dress on the driving shaft, described conducting slip ring rotating ring arranges conducting slip ring stationary ring, described conducting slip ring rotating ring is arranged and forms with conducting slip ring rotating ring the conducting slip ring stationary ring be rotationally connected, described conducting slip ring stationary ring is fixed by support, described conducting slip ring stationary ring and data conductor are interconnected, the statistical conversion will obtained by data conductor.
To prewhirl the further improvement of sealing force proving installation of effect for studying damping seal as to of the present invention: described sealed stator is provided with boss, and described sealed stator realizes the location with water conservancy diversion end cap and outlet by boss; Described sealed stator is respectively by being bolted on water conservancy diversion end cap and outlet.
To prewhirl the further improvement of sealing force proving installation of effect for studying damping seal as to of the present invention: be interconnected by flexible pipe between described outlet and tank; The bottom of described tank is provided with the bottom drain pipe for being connected with extraneous pipeline.
To prewhirl the further improvement of sealing force proving installation of effect for studying damping seal as to of the present invention: between entrance end cap and main shaft, be provided with radial seal assembly, described radial seal assembly comprises the labyrinth seal assemblies be arranged between entrance end cap inner ring surface and main shaft lateral surface, and for the lip seal assembly of secondary seal.
The present invention has good versatility, the test to different sealing is completed by fast assembling-disassembling, and have and measure accurately and can obtain the advantages such as data are abundant, can carry out sealing various operating mode under the prerequisite ensureing data reliability, the Measurement accuracy of the leakage rate under especially different intensity of prewhirling and the data of sealing force, for the research of sealing force shaft kinetic effect provides authentic data.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 of the present inventionly to prewhirl the primary structure schematic diagram of sealing force proving installation of effect for studying damping seal;
Fig. 2 is the primary structure schematic diagram of resistance-strain type of dynamometer meter 4 in Fig. 1;
Fig. 3 is the A-A sectional structure schematic diagram of resistance-strain type of dynamometer meter 4 in Fig. 1;
Fig. 4 is the distribution schematic diagram of 36 sheet resistance foil gauges on four rectangle distortion muscle in Fig. 2.
Embodiment
Embodiment 1, Fig. 1 ~ Fig. 3 give and a kind ofly to prewhirl the sealing force proving installation of effect for studying damping seal; Comprise driving shaft 1, conducting slip ring assembly 2, dynamometer protective cover 3, resistance-strain type of dynamometer meter 4, radial seal assembly, main shaft 6, sealed rotational part 7, outlet 9, sealed stator 10, axle sleeve 11 of prewhirling, water conservancy diversion end cap 12, entrance end cap 14 and tank 16.
Above-described water conservancy diversion end cap 12 and entrance end cap 14 form annular seal space, are used as test damping seal and prewhirl the main place of effect; Main shaft 6 laterally runs through annular seal space, and radial seal assembly is arranged between entrance end cap 14 inner ring surface and main shaft 6 lateral surface, and radial seal assembly comprises labyrinth seal assemblies, and for the lip seal assembly 5 of secondary seal.
The right half part of driving shaft 1 arranges conducting slip ring assembly 2, and conducting slip ring assembly 2 comprises support, conducting slip ring rotating ring 22 and conducting slip ring stationary ring 23; Conducting slip ring rotating ring 22 is set with (fixing) on driving shaft 1, conducting slip ring stationary ring 23 is set with (on-fixed) on conducting slip ring rotating ring 22, conducting slip ring stationary ring 23 and support are fixed, for being rotationally connected between conducting slip ring stationary ring 23 and conducting slip ring rotating ring 22, namely, when conducting slip ring rotating ring 22 rotates with driving shaft 1, conducting slip ring stationary ring 23 keeps stationary state by support.
Driving shaft 1 right-hand member is fixedly linked by the left end of resistance-strain type of dynamometer meter 4 with main shaft 6, and resistance-strain type of dynamometer meter 4 comprises two distortion muscle shaft collars, four rectangle distortion muscle and 36 sheet resistance foil gauges; Namely as shown in Figures 2 and 3, two distortion muscle shaft collars are respectively left distortion muscle shaft collar 41 and right distortion muscle shaft collar 42, and left distortion muscle shaft collar 41 is fixedly connected with the right-hand member of driving shaft 1, and right distortion muscle shaft collar 42 is fixedly connected with the left end of main shaft 6; Four rectangle distortion muscle and rectangle distortion muscle I 43, rectangle distortion muscle II 44, rectangle distortion muscle III 45 and rectangle distortion muscle IV 46; The left and right two ends of rectangle distortion muscle I 43, rectangle distortion muscle II 44, rectangle distortion muscle III 45 and rectangle distortion muscle IV 46 are fixed on left distortion muscle shaft collar 41 and right distortion muscle shaft collar 42 respectively uniformly, 36 sheet resistance foil gauges are evenly distributed on rectangle distortion muscle I 43, rectangle distortion muscle II 44, rectangle distortion muscle III 45 and rectangle distortion muscle IV 46, namely as shown in Figure 4, every root rectangle distortion muscle is assigned nine sheet resistance foil gauges, as A0, A12, A22, A21, A11, A32, A42, A31 and A41 on rectangle distortion muscle I 43; As D0, D12, D22, D21, D11, D32, D42, D31 and D41 on rectangle distortion muscle III 45; For keeping drawing clean and tidy, omit the resistance strain gage mark on rectangle distortion muscle II 44 and rectangle distortion muscle IV 46; It is identical with the distributional pattern on rectangle distortion muscle IV 46 that 36 sheet resistance foil gauges are out of shape muscle I 43, rectangle distortion muscle II 44 at rectangle, rectangle is out of shape muscle III 45.In order to protect above-described two distortion muscle shaft collars, four rectangle distortion muscle and 36 sheet resistance foil gauges; prevent damage; left distortion muscle shaft collar 41 is fixed with dynamometer protective cover 3(dynamometer protective cover 3 two distortion muscle shaft collars, four rectangle distortion muscle and 36 sheet resistance foil gauges are wrapped completely), dynamometer protective cover 3 has data conductor fairlead 15(is guided out 36 sheet resistance foil gauges resistance variations signal by data conductor fairlead 15).
The low order end fixing seal tumbler 7 of main shaft 6; Correspond to the position of sealed rotational part 7, water conservancy diversion end cap 12 arranges the sealed stator 10 forming clearance leakage runner 20 with sealed rotational part 7; Main shaft 6 on the left of sealed rotational part 7 is arranged the axle sleeve 11 of prewhirling forming annular channel 19 with water conservancy diversion end cap 12; The outside wall surface of axle sleeve 11 of prewhirling is provided with helicla flute, when helicla flute rotates with main shaft 6, annular channel 19 endpiece is pointed in precession direction, helicla flute groove depth is at least 1/3 of annular channel 19 radial dimension, and the radial dimension of annular channel 19 is at least 10 times of clearance leakage runner 20 radial dimension; The connection of prewhirling between axle sleeve 11 and main shaft 6 is removable type, achieves the independent regulation of prewhirl intensity and rotating speed by changing the axle sleeve 11 of prewhirling with helicla flute grooved, and the change of grooved mainly comprises lead angle, the width of groove tooth and the degree of depth etc.Simultaneously, proving installation is by (outer loop pipeline here does not provide in patent accompanying drawing with outer loop pipeline, refer to that current enter water conservancy diversion end cap 12 and entrance end cap 14 and form pipeline in annular seal space, the pipeline after tank 16 is discharged with current, and each valve and supercharge pump one of forming can change the circulation line of water flow pressure, for existing known technology, be not described in detail) and the motor circuit (frequency converter that motor circuit here refers to the necessary electromotor that driving driving shaft 1 rotates and controls motor, regulated by the rotating speed of variable frequency adjustment to axle, for existing known technology, be not described in detail) cooperation realize sealed rotational part 8 (different operating modes be here exactly mainly intake pressure under different operating mode, rotating speed, the adjustment of intensity of prewhirling) performance measurement.
Sealed stator 10 is provided with boss, and sealed stator 10 realizes the location with water conservancy diversion end cap 12 and outlet 9 by boss; After sealed stator 10 realizes the accurate location with water conservancy diversion end cap 12 and outlet 9 by boss, then respectively by being bolted on water conservancy diversion end cap 12 and outlet 9.Outlet 9 left end is as low pressure chamber, and inserting the liquid into right-hand member, the right-hand member of outlet 9 has flexible pipe 21 by clamp connection, and other one end of flexible pipe 21 is placed in tank 16, such setting both can meet the requirement that fast assembling-disassembling changes sealing, turn eliminated the restriction of longer sealing installation dimension.The lower end of tank 16 is provided with resistance strain weighing transducer 17; The bottom of tank 16 is provided with the bottom drain pipe 18 for being connected with extraneous pipeline.
Entrance end cap 14 hoop is provided with 1 flow channel entry point 13.The right-hand member of main shaft 6 is fixed with axis head nut 8, and axis head nut 8 is mainly used in the axial restraint of enhanced leaktightness tumbler 7, and sealed rotational part 7 is pushed up jail, plays the effect of the right-hand member of protection main shaft 6 simultaneously, reduces the abrasion of current.
The resistance obtained all (is recorded the size of relevant position strain by data conductor (through wire fairlead 15) by above-described 36 sheet resistance foil gauges by the change of resistance-strain sheet resistance, and then solve act on the size of the sealing force on main shaft 6 at assigned direction) delta data is transferred in conducting slip ring rotating ring 22, signal is transferred to conducting slip ring stationary ring 23 by conducting slip ring rotating ring 22 again, and conducting slip ring stationary ring 23 is transferred to external data acquisition and processing system by other data conductor.Resistance strain weighing transducer 17 is connected with signal between data acquisition and processing system, realizes damping seal Accurate Determining compared with Small leak amount under high speed, low voltage difference operating mode by resistance strain weighing transducer 17.
When reality uses, step is as follows:
1, current are introduced from flow channel entry point 13;
2, rotated by driving shaft 1, conducting slip ring rotating ring 22 and resistance-strain type of dynamometer meter 4 is driven to rotate respectively by driving shaft 1, resistance-strain type of dynamometer meter 4 drives main shaft 6 to rotate, and main shaft 6 drives axle sleeve 11 of prewhirling to rotate, and the helicla flute of axle sleeve 11 of prewhirling produces current and to prewhirl speed in current;
3, fixed to connection conducting slip ring stationary ring 23(conducting slip ring stationary ring 23 by support by external system, not along with conducting slip ring rotating ring 22 rotates), there is provided electric signal (voltage or current signal) to conducting slip ring rotating ring 22 by conducting slip ring stationary ring 23 again, again by conducting slip ring rotating ring 22 by electric signal transmission to 36 sheet resistance foil gauges, between four rectangle distortion muscle, forming bridge balance, (resistance strain gage is arranged on four rectangle distortion muscle, every root rectangle distortion muscle arranges nine resistance strain gages, be out of shape four resistance strain gages corresponding on muscle by four rectangles and form a bridge balance, namely nine bridge balances are always had),
Due to current by clearance leakage runner 20 time, the power that the main shaft 6 that has an impact rotates, after main shaft 6 is subject to power, the right distortion muscle shaft collar 42 of main shaft 6 left end is directly affected, cause four rectangle distortion sprains of muscle and tendon between left distortion muscle shaft collar 41 and right distortion muscle shaft collar 42 bent, the bridge balance between four rectangle distortion muscle is directly caused to be broken, the fluctuation of generation current, by data line, the fluctuation signal of electric current is exported to conducting slip ring stationary ring 23, then by conducting slip ring stationary ring 23, the fluctuation signal of electric current is exported to data acquisition system (DAS);
4, current are successively after annular channel 19 and clearance leakage runner 20, enter in tank 16 by outlet 9 through flexible pipe 21, collect corresponding data by the resistance strain weighing transducer 17 in tank 16, and corresponding data are transferred in data acquisition and processing system do corresponding process.
Finally, it is also to be noted that what enumerate above is only a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should think protection scope of the present invention.
Claims (7)
1. to prewhirl the sealing force proving installation of effect for studying damping seal for one kind; It is characterized in that: comprise the annular seal space, main shaft (6), driving shaft (1) and the tank (16) that are formed by entrance end cap (14) and water conservancy diversion end cap (12);
Described main shaft (6) runs through annular seal space;
Described driving shaft (1) is provided with conducting slip ring assembly (2), the right-hand member of described driving shaft (1) is connected by the left end of resistance-strain type of dynamometer meter (4) with main shaft (6), and described resistance-strain type of dynamometer meter (4) is connected with conducting slip ring assembly (2) signal;
The low order end of described main shaft (6) is provided with sealed rotational part (7); Correspond to the position of sealed rotational part (7), water conservancy diversion end cap (12) is provided with the sealed stator (10) forming clearance leakage runner (20) with sealed rotational part (7), sealed stator (10) is provided with outlet (9), described outlet (9) is connected with tank (16), and the lower end of described tank (16) is provided with resistance strain weighing transducer (17);
The main shaft (6) in described sealed rotational part (7) left side is provided with the axle sleeve of prewhirling (11) forming annular channel (19) with water conservancy diversion end cap (12); The outside wall surface of described axle sleeve of prewhirling (11) is provided with helicla flute, when helicla flute rotates with main shaft (6), annular channel (19) endpiece is pointed in precession direction, helicla flute groove depth is at least 1/3 of annular channel (19) radial dimension, and the radial dimension of described annular channel (19) is at least 10 times of clearance leakage runner (20) radial dimension;
Described entrance end cap (14) hoop is provided with 1 flow channel entry point (13).
2. according to claim 1ly to prewhirl the sealing force proving installation of effect for studying damping seal, it is characterized in that: described resistance-strain type of dynamometer meter (4) is also provided with dynamometer protective cover (3); Described dynamometer protective cover (3) is provided with data conductor fairlead (15);
Described resistance-strain type of dynamometer meter (4) draws data conductor by wire fairlead (15), and described data conductor is connected with conducting slip ring assembly (2).
3. according to claim 2ly to prewhirl the sealing force proving installation of effect for studying damping seal, it is characterized in that: described resistance-strain type of dynamometer meter (4) comprises two distortion muscle shaft collars, four rectangles distortion muscle and 36 sheet resistance foil gauges;
Be uniformly distributed four rectangle distortion muscle between described two distortion muscle shaft collars, described every root rectangle distortion muscle arranges nine sheet resistance foil gauges respectively;
The distortion muscle shaft collar of described one end is fixedly connected with driving shaft (1), and the distortion muscle shaft collar of described other one end is fixedly connected with main shaft (6);
Described dynamometer protective cover (3) interfixes with the distortion muscle shaft collar of side, and described 36 sheet resistance foil gauges and data conductor are interconnected.
4. according to claim 3ly to prewhirl the sealing force proving installation of effect for studying damping seal, it is characterized in that:
Described conducting slip ring assembly (2) comprises support, conducting slip ring rotating ring (22) and conducting slip ring stationary ring (23);
Described conducting slip ring rotating ring (22) is sleeved on driving shaft (1), the upper setting of described conducting slip ring rotating ring (22) forms with conducting slip ring rotating ring (22) the conducting slip ring stationary ring (23) be rotationally connected, described conducting slip ring stationary ring (23) is fixed by support, described conducting slip ring stationary ring (23) and data conductor are interconnected, the statistical conversion will obtained by data conductor.
5. according to claim 4ly to prewhirl the sealing force proving installation of effect for studying damping seal, it is characterized in that: (10) are provided with boss to described sealed stator, described sealed stator (10) realizes the location with water conservancy diversion end cap (12) and outlet (9) by boss;
Described sealed stator (10) is respectively by being bolted on water conservancy diversion end cap (12) and outlet (9).
6. according to claim 5ly to prewhirl the sealing force proving installation of effect for studying damping seal, it is characterized in that: be interconnected by flexible pipe (21) between described outlet (9) and tank (16);
The bottom of described tank (16) is provided with the bottom drain pipe (18) for being connected with extraneous pipeline.
7. according to claim 6ly to prewhirl the sealing force proving installation of effect for studying damping seal, it is characterized in that: between entrance end cap (14) and main shaft (6), be provided with radial seal assembly, described radial seal assembly comprises the labyrinth seal assemblies be arranged between entrance end cap (14) inner ring surface and main shaft (6) lateral surface, and for the lip seal assembly (5) of secondary seal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310473490.2A CN103512685B (en) | 2013-10-11 | 2013-10-11 | Sealing force testing device used for studying damping seal prerotation effect |
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| CN201310473490.2A CN103512685B (en) | 2013-10-11 | 2013-10-11 | Sealing force testing device used for studying damping seal prerotation effect |
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| CN103512685B true CN103512685B (en) | 2015-04-08 |
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| CN201310473490.2A Expired - Fee Related CN103512685B (en) | 2013-10-11 | 2013-10-11 | Sealing force testing device used for studying damping seal prerotation effect |
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| CN106644196A (en) * | 2016-11-02 | 2017-05-10 | 中国航天空气动力技术研究院 | Dynamic torque measurement sensor with speed measurement function |
| CN106424883B (en) * | 2016-11-09 | 2019-03-22 | 哈尔滨理工大学 | Multi-functional micro- rose cutter for knitting structure is had in a kind of titanic alloy machining |
| CN107131980A (en) * | 2017-06-09 | 2017-09-05 | 上海交通大学 | The direct stress that a kind of small rotary tank prepares mud-rock flow determines device |
| CN109580071B (en) * | 2018-11-29 | 2020-01-21 | 浙江大学 | Method for measuring excitation force of rotary driving shaft and excitation force of impeller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2444036A1 (en) * | 1974-09-14 | 1976-03-25 | Volkswagenwerk Ag | Shaft sealing ring testing device - measures inwardly directed radial force by longitudinally split mandrel for ring stretching |
| SU572664A1 (en) * | 1975-01-27 | 1977-09-15 | Предприятие П/Я Г-4219 | Force-measuring device |
| US6615672B2 (en) * | 2001-09-07 | 2003-09-09 | Genesis Machinery Products | Apparatus and method for determining residual seal force of sealed containers |
| CN100580678C (en) * | 2004-01-23 | 2010-01-13 | 吉尼西斯机械产品公司 | Seal force monitor apparatus, system and method for in-process determination of integrity of sealed containers |
| CN101463903B (en) * | 2009-01-12 | 2010-09-08 | 浙江大学 | High-pressure controllable slide valve type mechanical combination sealing system |
| CN101464203B (en) * | 2009-01-12 | 2010-06-16 | 浙江大学 | Mechanical seal transient state start/stop sealing property tester |
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