CN110031156A - A kind of both-end sealing dynamic field investigation platform and method - Google Patents

A kind of both-end sealing dynamic field investigation platform and method Download PDF

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Publication number
CN110031156A
CN110031156A CN201910358918.6A CN201910358918A CN110031156A CN 110031156 A CN110031156 A CN 110031156A CN 201910358918 A CN201910358918 A CN 201910358918A CN 110031156 A CN110031156 A CN 110031156A
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CN
China
Prior art keywords
support
main shaft
sealing
axle sleeve
motor
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Pending
Application number
CN201910358918.6A
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Chinese (zh)
Inventor
申永峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN YONGHUA GROUP CO Ltd
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XI'AN YONGHUA GROUP CO Ltd
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Filing date
Publication date
Application filed by XI'AN YONGHUA GROUP CO Ltd filed Critical XI'AN YONGHUA GROUP CO Ltd
Priority to CN201910358918.6A priority Critical patent/CN110031156A/en
Publication of CN110031156A publication Critical patent/CN110031156A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention discloses a kind of both-ends to seal dynamic field investigation platform, including the first main shaft, motor, the second main shaft and pedestal composition.The application simulates the structure of live pump, it is equivalent to a kind of dual-gripper pump, two sides are symmetrical, a seal cavity is respectively formed in motor two sides, a set of sealing is respectively filled in both sides sealing cavity, by motor band dynamic-sealing rotary, and pressure is generated in seal cavity, according to the variation of pressure judgement sealing with the presence or absence of leakage, the service performance of sealing is effectively examined by dynamic test.A kind of application method of both-end sealing dynamic field investigation platform is also disclosed, dynamic test is carried out to the sealing of the different diameters of axle, is had the characteristics that flexible for installation and versatile.

Description

A kind of both-end sealing dynamic field investigation platform and method
Technical field
The present invention relates to the dynamic field investigation fields of mechanical seal, refer specifically to a kind of both-end sealing dynamic field investigation platform And method.
Background technique
Often there is sealing leak with pump long-term operation in mechanical seal, so investigation leak source is one very heavy The work wanted.The sealing performance of mechanical seal is examined to have static leak source test and dynamic leak source to test two methods, wherein static Leak source test is suitable for pump and carries out leakage detection in stationary state, and it is obvious to be suitable for leak source, the biggish mechanical seal of leakage rate, But it is unobvious and be not easy the sealing checked for leak source, the test effect of static leak source test is with regard to unobvious.The examination of dynamic leak source It tests the pump for operating and carries out leakage detection, leakage detection effect is relatively obvious, but the more wasteful sealing fluid of the test, Er Qieying Ring the operating condition of pump.Mechanical seal field investigation platform in the prior art simulates operation of the mechanical seal in pump Operating condition has well solved the above problem.But only mechanical seal being driven to test by one end of motor, motor is subsidiary The balance operated when mechanical seal is poor, cannot be sealed in the operating condition in pump, working efficiency by analog mechanical well It is low.
Summary of the invention
In order to which preferably analog mechanical is sealed in operating condition in pump, the service performance and testing stand of mechanical seal are improved Working efficiency, the present invention provides a kind of both-end sealing dynamic field investigation platforms and method, effectively to examine mechanical seal Sealing performance.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
A kind of both-end sealing dynamic field investigation platform, including the first main shaft, motor, the second main shaft and pedestal composition.Electricity The both ends of machine are separately connected the first main shaft and the second main shaft, and the bottom of motor is connect with pedestal.One end of motor is provided with first One end of inner flange, one end of the first inner flange and motor connects, and the other end of the first inner flange is provided with first support, and first One end of bracket is connect with the other end of the first inner flange, and the other end of first support is provided with the first outward flange, the first outer method The other end of blue one end and first support connects, and the other end of the first outward flange is provided with first end cover, first end cover and the The other end of one outward flange connects.
The other end of motor is provided with the second inner flange, and one end of the second inner flange and one end of motor connect, in second The other end of flange is provided with second support, and one end of second support is connect with the other end of the second inner flange, second support The other end is provided with the second outward flange, and one end of the second outward flange and the other end of second support connect, the second outward flange it is another One end is provided with second end cover, and second end cover is connect with the other end of the second outward flange.
Compared with prior art, the invention has the following advantages that
The application simulates the structure of live pump, is equivalent to a kind of dual-gripper pump, two sides are symmetrical, in each shape in motor two sides At a seal cavity, a set of sealing is respectively filled in both sides sealing cavity, by motor band dynamic-sealing rotary, and in seal cavity In generate pressure, according to the variation of pressure judgement sealing with the presence or absence of leakage, sealing is effectively examined by dynamic test Service performance.
Further preferably are as follows: the first axle sleeve is provided on the first main shaft, the first axle sleeve is connect with the first main shaft.Second main shaft On be provided with the second axle sleeve, the second axle sleeve is connect with the second main shaft.
By adopting the above technical scheme, it is equivalent to dual-gripper pump, on two axle sleeves, two sets of sealings can be installed simultaneously, is examined Its sealing performance.
Further preferably are as follows: first axle covers and the second axle sleeve is variable diameter axle sleeve.
By adopting the above technical scheme, the sealing of the different diameters of axle is examined in the sealing that can install the different diameters of axle, flexible for installation, It is versatile.
Further preferably are as follows: the bottom of first support is provided with the first pillar, the upper end of the first pillar and first support Bottom welding, the lower end of the first pillar is connect with pedestal.
By adopting the above technical scheme, the first pillar supports first support, and first support and pedestal rigid connection are got up, reached To the purpose for supporting entire testing stand.
Further preferably are as follows: the first pillar is made of No. 45 steel.
By adopting the above technical scheme, No. 45 steel comprehensive mechanical properties are strong, intensity with higher, using made of No. 45 steel First pillar load-bearing capacity is strong, has fine supporting role to testing stand.
Further preferably are as follows: the bottom of second support is provided with the second pillar, the upper end of the second pillar and second support Bottom welding, the lower end of the second pillar is connect with pedestal.
By adopting the above technical scheme, the second pillar supports second support, and second support and pedestal rigid connection are got up, reached To the purpose for supporting entire testing stand.
Further preferably are as follows: the second pillar is made of No. 45 steel.
By adopting the above technical scheme, No. 45 steel comprehensive mechanical properties are strong, intensity with higher, using made of No. 45 steel First pillar load-bearing capacity is strong, has fine supporting role to testing stand.
A kind of application method of both-end sealing dynamic field investigation platform, it is characterised in that: the following steps are included:
Step 1. removes the first end cover, the first outward flange and first support.
Step 2. installs first axle sleeve and sealing element.
Step 3., which is returned, fills the first support, the first outward flange and first end cover.
Step 4. removes the second end cover, the second outward flange and second support.
Second axle sleeve of step 5. and sealing element.
Step 6., which is returned, fills the second support, the second outward flange and second end cover.
Step 7. starts the motor and starts to work, and sealing element is produced with first main shaft and second spindle operation Raw pressure.
Step 8. examines the sealing performance of sealing element according to the variation of pressure.
By adopting the above technical scheme, the sealing performance of mechanical seal is not only more effectively examined, but also by replacing axle sleeve, Dynamic test is carried out by the sealing to the different diameters of axle, is had the characteristics that flexible for installation and versatile.
Detailed description of the invention
Fig. 1 is the schematic diagram of the present embodiment;
Fig. 2 is the schematic diagram of the present embodiment;
Fig. 3 is the schematic diagram that the present embodiment is mounted with sealing element;
In figure, the first main shaft of 1-;2- motor;The second main shaft of 3-;4- first pressure gauge;5- second pressure gauge;6- first Frame;7- second support;The first axle sleeve of 8-;The second axle sleeve of 9-;10- pedestal;11- electric machine support;The first outward flange of 12-;13- second Outward flange;The first inner flange of 14-;The second inner flange of 15-;16- first end cover;17- second end cover;18- first annular seal space body; The second seal cavity of 19-;20- machine shaft;21- first baffle;22- second baffle;The first pillar of 60-;The second pillar of 70-; 100- first seal;101- second seal;The first oil inlet pipe of 200-;The first flowline of 201-;The second oil inlet pipe of 300-; The second flowline of 301-.
Specific embodiment
Below in conjunction with attached drawing 1, Fig. 2 and Fig. 3, invention is further described in detail.
As depicted in figs. 1 and 2, a kind of both-end seals dynamic field investigation platform, by the first main shaft 1, motor 2, the second main shaft 3 And pedestal 10 forms.Machine shaft 20 is provided on motor 2, machine shaft 20 is detachably connected with motor 2, machine shaft 20 Both ends be separately connected the first main shaft 1 and the second main shaft 3.The bottom of motor 2 is provided with electric machine support 11, electric machine support 11 it is upper End and the bottom of motor 2 are welded, and lower end and the pedestal 10 of electric machine support 11 are bolted.
One end of motor 2 is provided with the first inner flange 14, and one end of the first inner flange 14 and one end of motor 2 pass through bolt Connection, the other end of the first inner flange 14 are provided with first support 6, and one end of first support 6 is another with the first inner flange 14 End is bolted.The other end of first support 6 is provided with the first outward flange 12, one end of the first outward flange 12 with first The other end of frame 6 is bolted, and the other end of the first outward flange 12 is provided with first end cover 16, first end cover 16 and first The other end of outward flange 12 is bolted.First end cover 16 and the first outward flange 12, first support 6 and the first inner flange 14 form first annular seal space body 18.
The top of first end cover 16 is provided with first pressure gauge 4, and first pressure gauge 4 and the top of first end cover 16 pass through spiral shell Mother's connection.The bottom end of first end cover 16 offers the first oil inlet pipe 200, the external lube oil inlet pipe of the first oil inlet pipe 200, the profit Lubricating oil oil inlet pipe is existing standard component.
As shown in figure 3, the top of first support 6 offers the first flowline 201, the external lubricating oil of the first flowline 201 Flowline, the lube oil outlet pipe are existing standard component.The bottom of first support 6 is provided with the first pillar 60, the first pillar 60 Upper end and the bottom of first support 6 weld, lower end and the pedestal 10 of the first pillar 60 be bolted, and the first pillar 60 rises To the effect of first support 6 and sealing element.In order to support than heavier test tower and sealing element, so the first pillar 60 uses 45 Number steel is made, and comprehensive mechanical property is good, intensity with higher, can be more preferable play a supporting role.
Sealing element includes first seal 100 and second seal 101.
In first annular seal space body 18, one end of machine shaft 20 is provided with the first main shaft 1, one end of the first main shaft 1 with One end of machine shaft 20 is detachably connected.The other end of first main shaft 1 is provided with first baffle 21, first baffle 21 and first The other end of main shaft 1 is bolted, and the first axle sleeve 8 is provided on the first main shaft 1, and the first axle sleeve 8 and 1 key of the first main shaft connect It connects.Referring to Fig. 3, it is provided with first seal 100 on the first axle sleeve 8, first seal 100 is detachably linked with the first axle sleeve 8.
The other end of motor 2 is provided with the second inner flange 15, and one end of the second inner flange 15 and one end of motor 2 pass through spiral shell It tethers and connects, the other end of the second inner flange 15 is provided with second support 7, and one end of second support 7 is another with the second inner flange 15 One end is bolted, and the other end of second support 7 is provided with the second outward flange 13, one end and second of the second outward flange 13 The other end of bracket 7 is bolted, and the other end of the second outward flange 13 is provided with second end cover 17, second end cover 17 and The other end of two outward flanges 13 is bolted.Method in second end cover 17 and the second outward flange 13, second support 7 and second Orchid 15 forms the second seal cavity 19.
The top of second end cover 17 is provided with second pressure gauge 5, and second pressure gauge 5 and the top of second end cover 17 pass through spiral shell Mother's connection.The bottom of second end cover 17 offers the second oil inlet pipe 300, the external lube oil inlet pipe of the second oil inlet pipe 300, the profit Lubricating oil oil inlet pipe is existing standard component.
As shown in figure 3, the top of second support 7 offers the second flowline 301, the external lubricating oil of the second flowline 301 Flowline, the lube oil outlet pipe are existing standard component.The bottom of second support 7 is provided with the second pillar 70, the second pillar 70 Upper end and the bottom of second support 7 weld, lower end and the pedestal 10 of the second pillar 70 be bolted, and the second pillar 70 rises To the effect of second support 7 and sealing element.In order to support than heavier test tower and sealing element, so the second pillar 70 uses 45 Number steel is made, and comprehensive mechanical property is good, intensity with higher, can be more preferable play a supporting role.
In the second seal cavity 19, the other end of machine shaft 20 is provided with the second main shaft 3, one end of the second main shaft 3 Be detachably connected with the other end of machine shaft 20, the other end of the second main shaft 3 is provided with second baffle 22, second baffle 22 with The other end of second main shaft 3 is bolted, and the second axle sleeve 9, the second axle sleeve 9 and the second main shaft 3 are provided on the second main shaft 3 Key connection.Referring to Fig. 3, second seal 101 is provided on the second axle sleeve 9, second seal 101 and the second axle sleeve 9 are detachable Connection.
The both ends of machine shaft 20 can connect within ¢ 120 (comprising ¢ 120) the first main shaft 1 of the different diameters of axle and the simultaneously Two main shafts 3 make the application can be carried out dynamic test to diameter of axle sealings different within 120 diameter of axle of ¢, flexible for installation, versatility By force, applied widely.
Test principle: injecting lubricating oil from the first oil inlet pipe 200 and the second oil inlet pipe 300 respectively, makes lubricating oil full of the One seal cavity 18 and the second seal cavity 19, are lubricated the friction pair of sealing.Start motor 2,20 high speed of machine shaft Rotation, machine shaft 20 drive the first main shaft 1 and the rotation of the second main shaft 3 simultaneously, and the first axle sleeve 8 revolves together with the first main shaft 1 Turn, first seal 100 generates centrifugal force as the first main shaft 1 rotates together, forms pressure in centrifugal force first annular seal space body 18 Power, pressure value are shown by first pressure gauge 4, if the pressure value remains stable in a certain range, first seal 100 There is no leak source, favorable sealing property if pressure value fluctuation is big, or even declines quickly, then first seal 100 has leakage Point, poor sealing performance.Meanwhile second axle sleeve 9 rotated together with the second main shaft 3, second seal 100 is with the second main shaft 3 Rotation generates centrifugal force together, forms pressure in the second seal cavity of centrifugal force 19, pressure value is shown by second pressure gauge 5 Come, if the pressure value remains stable in a certain range, second seal 101 be not present leak source, favorable sealing property, if Pressure value fluctuation is big, or even declines quickly, then there are leak source, poor sealing performances for second seal 101.
A kind of application method of both-end sealing dynamic field investigation platform method, referring to Figures 1 and 2, comprising the following steps:
Step 1. unclamps bolt, successively removes first end cover 16, the first outward flange 12 and first support 6.
Step 2. selects the first axle sleeve 8 corresponding with 100 diameter of axle of first seal, installs first on the first main shaft 1 First seal 100 is mounted on the first axle sleeve 8 by axle sleeve 8, and blending bolt is fixed.
Step 3. returns dress first support 6, and the other end of one end of first support 6 and the first inner flange 14 is connected by bolt It connects, the lower end of first support 6 is connect with pedestal 10.
Step 4., which is returned, fills the first outward flange 12, and the other end of one end of the first outward flange 12 and first support 6 is passed through spiral shell It tethers and connects.
Step 5. returns dress first end cover 16, and the other end of first end cover 16 and the first outward flange 12 is connected by bolt.
Step 6. unclamps bolt, successively removes second end cover 17, the second outward flange 13 and second support 7.
Step 7. selects the second axle sleeve 9 corresponding with 101 diameter of axle of second seal, installs second on the second main shaft 3 Second seal 101 is mounted on the second axle sleeve 9 by axle sleeve 9, and blending bolt is fixed.
Step 8. returns dress second support 7, and the other end of one end of second support 7 and the second inner flange 15 is connected by bolt It connects, the lower end of second support 7 is connect with pedestal 10.
Step 9., which is returned, fills the second outward flange 13, and the other end of one end of the second outward flange 13 and second support 7 is passed through spiral shell It tethers and connects.
Step 10. returns dress second end cover 17, and second end cover 17 and the other end of the second outward flange 13 are bolted.
Step 11. injects lubricating oil to the first oil inlet pipe 200 and the second oil inlet pipe 300 respectively.
Step 12. is powered to motor 2, and starting motor 2 is started to work, and machine shaft 20 operates, one end of machine shaft 20 The first main shaft 1 is driven to operate, the rotation of the first main shaft 1 drives the rotation of the first axle sleeve 8, and the rotation of the first axle sleeve 8 drives first seal 100 rotations, the rotation of first seal 100 generate centrifugal force and simultaneously generate pressure in first annular seal space body 18, specific pressure value by First pressure gauge 4 is shown.Lubricating oil flows out to lube oil outlet pipe from the first flowline 201.
The other end of step 13. machine shaft 20 drives the operating of the second main shaft 3, and the rotation of the second main shaft 3 drives the second axle sleeve 9 It rotates, the rotation of the second axle sleeve 9 drives second seal 101 to rotate, and the rotation of second seal 101 generation centrifugal force is simultaneously close second It seals and generates pressure in cavity 19, specific pressure value is shown by second pressure gauge 5.Lubricating oil flows out to profit from the second flowline 301 Lubricating oil flowline.
In step 14. operation process, if the real-time pressure show value of first pressure gauge 4 and second pressure gauge 5 is one Stabilization remains unchanged in fixed range, illustrates that lubricating oil does not enter into first seal 100 and second seal 101, to sentence Disconnected first seal 100 and second seal 101 do not leak, good seal performance.If the real-time pressure of first pressure gauge 4 is aobvious Indicating value is continued to decline by a certain pressure value or the pressure of first pressure gauge 4 is constantly in lower value, illustrates that lubricating oil enters One sealing element 100, to judge that first seal 100 has leakage, poor sealing performance.If the real-time pressure of second pressure gauge 5 Power show value is continued to decline by a certain pressure value or the pressure of second pressure gauge 5 is constantly in lower value, illustrates that lubricating oil enters Second seal 101, to judge that second seal 101 has leakage, poor sealing performance.Sealing can be examined with the method The sealing performance of device, and by replacement axle sleeve, realize the leak case for examining different diameter of axle sealings, it is versatile, reach One multi-purpose good result.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the protection scope of invention.

Claims (8)

1. a kind of both-end seals dynamic field investigation platform, including the first main shaft (1), motor (2), the second main shaft (3) and pedestal (10);The both ends of the motor (2) are separately connected first main shaft (1) and second main shaft (3);The motor (2) Bottom is connect with the pedestal (10);It is characterized by: one end of the motor (2) is provided with the first inner flange (14), it is described One end of first inner flange (14) is connect with one end of the motor (2), and the other end of first inner flange (14) is provided with First support (6), one end of the first support (6) are connect with the other end of first inner flange (14), and described first The other end of frame (6) is provided with the first outward flange (12), one end and the first support (6) of first outward flange (12) Other end connection, the other end of first outward flange (12) are provided with first end cover (16), the first end cover (16) and institute State the other end connection of the first outward flange (12);
The other end of the motor (2) is provided with the second inner flange (15), one end of second inner flange (15) and the electricity The other end of machine (2) connects, and the other end of second inner flange (15) is provided with second support (7), the second support (7) One end connect with the other end of second inner flange (15), the other end of the second support (7) is provided with the second outer method Blue (13), one end of second outward flange (13) are connect with the other end of the second support (7), second outward flange (13) the other end is provided with second end cover (17), and the other end of the second end cover (17) and second outward flange (13) connects It connects.
2. both-end according to claim 1 seals dynamic field investigation platform, it is characterised in that: on first main shaft (1) It is provided with the first axle sleeve (8), first axle sleeve (8) connect with first main shaft (8);It is arranged on second main shaft (3) Have the second axle sleeve (9), second axle sleeve (9) connect with second main shaft (3).
3. both-end according to claim 2 seals dynamic field investigation platform, it is characterised in that: first axle sleeve (8) and Second axle sleeve (9) is variable diameter axle sleeve.
4. both-end according to claim 1 seals dynamic field investigation platform, it is characterised in that: the first support (6) Bottom is provided with the first pillar (60), and the upper end of first pillar (60) and the bottom of the first support (6) are welded, described The lower end of first pillar (60) is connect with the pedestal (10).
5. both-end according to claim 4 seals dynamic field investigation platform, it is characterised in that: first pillar (60) is adopted It is made of No. 45 steel.
6. both-end according to claim 1 seals dynamic field investigation platform, it is characterised in that: the second support (7) Bottom is provided with the second pillar (70), and the upper end of second pillar (70) and the bottom of the second support (7) are welded, described The lower end of second pillar (70) is connect with the pedestal (10).
7. both-end according to claim 6 seals dynamic field investigation platform, it is characterised in that: second pillar (70) is adopted It is made of No. 45 steel.
8. a kind of application method of both-end sealing dynamic field investigation platform, it is characterised in that: the following steps are included:
Step 1. removes the first end cover (16), the first outward flange (12) and first support (6);
Step 2. installs first axle sleeve (8) and sealing element;
Step 3., which is returned, fills the first support (6), the first outward flange (12) and first end cover (16);
Step 4. removes the second end cover (17), the second outward flange (13) and second support (7);
Step 5. installs second axle sleeve (9) and sealing element;
Step 6., which is returned, fills the second support (7), the second outward flange (13) and second end cover (17);
Step 7. starts the motor (2) start-up operation, and sealing element is with first main shaft (1) and second main shaft (3) Operating generates pressure;
Step 8. examines the sealing performance of sealing element according to the variation of pressure.
CN201910358918.6A 2019-04-29 2019-04-29 A kind of both-end sealing dynamic field investigation platform and method Pending CN110031156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910358918.6A CN110031156A (en) 2019-04-29 2019-04-29 A kind of both-end sealing dynamic field investigation platform and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910358918.6A CN110031156A (en) 2019-04-29 2019-04-29 A kind of both-end sealing dynamic field investigation platform and method

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Publication Number Publication Date
CN110031156A true CN110031156A (en) 2019-07-19

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207418A (en) * 2011-04-06 2011-10-05 北京化工大学 Integrated test stand of high-speed high-pressure air seal for rotating shaft
CN107505101A (en) * 2017-09-15 2017-12-22 中铁工程装备集团盾构制造有限公司 A kind of shield owner drives pulsing packing frock and its test method
CN107764488A (en) * 2017-11-23 2018-03-06 南京林业大学 Mechanical seal leakage method of testing and device
CN209802608U (en) * 2019-04-29 2019-12-17 西安永华集团有限公司 Double-end sealing dynamic operation test bed

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207418A (en) * 2011-04-06 2011-10-05 北京化工大学 Integrated test stand of high-speed high-pressure air seal for rotating shaft
CN107505101A (en) * 2017-09-15 2017-12-22 中铁工程装备集团盾构制造有限公司 A kind of shield owner drives pulsing packing frock and its test method
CN107764488A (en) * 2017-11-23 2018-03-06 南京林业大学 Mechanical seal leakage method of testing and device
CN209802608U (en) * 2019-04-29 2019-12-17 西安永华集团有限公司 Double-end sealing dynamic operation test bed

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