CN201051037Y - Liquid sealing testing device - Google Patents
Liquid sealing testing device Download PDFInfo
- Publication number
- CN201051037Y CN201051037Y CNU2007200320679U CN200720032067U CN201051037Y CN 201051037 Y CN201051037 Y CN 201051037Y CN U2007200320679 U CNU2007200320679 U CN U2007200320679U CN 200720032067 U CN200720032067 U CN 200720032067U CN 201051037 Y CN201051037 Y CN 201051037Y
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- Prior art keywords
- end cap
- axle
- cell body
- axis
- experimental provision
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- Expired - Fee Related
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Abstract
A liquid sealing experiment device comprises a base and a groove which is arranged on the base, wherein the groove is a horizontal cylinder with both sides connected with terminal covers with round axis holes in the center, the top end of the groove is provided with a top cover which is provided with a pressure list and pressure medium entrance, the lower end of the groove is provided with a materials discharge hole, the left motor is connected to the left axis through a left side junction box, the left axis is matched tightly with the axis cover through screwing an left pad ring, a right motor is connected to the right axis through a junction box, and right axis is tightly matched with the right pad ring and a screw outside the cover through screws. The utility model alters the sealed liquid medium pressure through pressure medium entrance to detect sealed effect and energy consumption in different medium pressure by the device, and detects sealing effect and energy consumption in different rotation speeds through altering the rotation speed of the rotation axis.
Description
Technical field
The utility model relates to a kind of sealing experiment device that is used to impart knowledge to students, and is specifically related to a kind of fluid-tight experimental provision.
Background technology
A large amount of container class equipment and fluid machinery all need shaft sealing device to stop the leakage of medium.The performance of packoff directly affects entire equipment reliability of operation and power consumption index, and therefore selection or design suitable seal device are just very important.Good packoff should have the better seal effect, reliability, less power consumption, the less rate of wear, simple structure reach lower price preferably.The kind of shaft sealing device is a lot, as packing seal, mechanical seal, helixseal, centrifugal seal, labyrinth seal, floating-ring seal etc.Each packoff has multiple material and structural parameters again, in order to study different seal form, structure, parameter or material, often need to be a large amount of contrast experiments, to determine the sealing property and the energy consumption index of different sealing device, this just needs an ideal experimental facilities.In addition, by the contrast experiment to the different sealing device, can strengthen the understanding to different sealing form, hermetically-sealed construction, encapsulant etc., this also needs desirable experimental facilities.
Summary of the invention
The purpose of this utility model is to provide a kind of can compare experiment to two kinds of packoffs easily, changes the sealing load of two kinds of packoffs simultaneously, respectively the fluid-tight experimental provision of the rotating speed of two kinds of packoffs of step-less adjustment.
For achieving the above object, the technical solution adopted in the utility model is: comprise base and be arranged on cell body on the base, cell body is horizontal cylindrical shape, both sides at cell body are connected with left end cap and right end cap respectively, all there is circular axis hole in the central authorities of left end cap and right end cap, be provided with axle sleeve in the circular axis hole of left end cap, be provided with overcoat in the circular axis hole of right end cap, the upright pipe of cell body upper end is connected with loam cake, the upright roundlet pipe top of loam cake central authorities is connected with tensimeter, this upright little pipe is provided with the pressure medium inlet, the cell body bottom is provided with elbow and ball valve as the material floss hole, left motor is connected with left side axle by the left side shaft joint, left side axle closely cooperates by nut and left packing ring and axle sleeve, and inserts soft filler between left end cap and axle sleeve, also is provided with gland in the outside of this soft filler, right motor is connected with right axle by shaft joint, and right by nut and right packing ring and be installed in to overlap in the spiral in the overcoat and closely cooperate.
Between axle sleeve of the present utility model and gland, the left end cap minim gap is arranged; Between cover and the overcoat minim gap is arranged in the spiral; Right axle is by bearing and bearing supporting; Left side axle is supported by bearing; Left and right motor also is connected with the switch board that has frequency converter respectively.
Because the utility model changes sealed medium pressure liquid easily by pressure medium inlet, to detect sealing effectiveness and the energy consumption of packoff when the different medium pressure; In addition by changing the rotating speed of rotating shaft, to detect sealing effectiveness and the energy consumption when the different rotating speeds.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model;
Fig. 2 is a partial enlarged drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are described in further detail.
Referring to Fig. 1,2, the utility model comprises base 1 and is arranged on cell body 6 on the base 1, cell body 6 is horizontal cylindrical shape, be connected with left end cap 8 and the right end cap 5 that all there is circular axis hole in central authorities respectively in the both sides of cell body 6, be provided with axle sleeve 10 in the circular axis hole of left end cap 8, be provided with overcoat 4 in the circular axis hole of right end cap 5, the upright pipe of cell body 6 upper ends is connected with loam cake 7, the upright roundlet pipe top of loam cake 7 central authorities is connected with tensimeter 19, this upright little pipe is provided with pressure medium inlet 27, cell body 6 bottoms are provided with elbow 17 and ball valve 16 as the material floss hole, left motor 14 is connected with left side axle 25 by left side shaft joint 13, left side axle 25 is by bearing 11 and bearing 12 supportings, left side axle 25 closely cooperates with axle sleeve 10 by nut and left packing ring 15, and between left end cap 8 and axle sleeve 10, insert soft filler 18, the outside at this soft filler 18 also is provided with gland 9, axle sleeve 10 and gland 9, between the left end cap 8 minim gap is arranged, left side motor 14 drives left side axle 25, axle sleeve 10 rotations, the contact friction of 18 pairs of axle sleeves 10 of filler produces sealing function.Right motor 24 is connected with right axle 2 by shaft joint 23, and right axle 2 is by bearing 21 and bearing 22 supportings, and right axle 2 closely cooperates by cover 3 in nut and right packing ring 26 and the spiral that is installed in the overcoat 4, spiral is interior overlap 3 and overcoat 4 between minim gap is arranged.Right motor 24 drives cover 3 rotations in right axle 2, the spiral, and cover 3 surperficial spirals produce the thrust in cell body 6 in the spiral, thereby produce sealing function, and left and right motor 14,24 also is connected with the switch board 20 that has frequency converter respectively.
Close ball valve 16 during experiment earlier, open loam cake 7; The right motor 24 of low rate start slowly rotates the interior cover 3 of right axle 2 and spiral, so that spiral sealing device has certain sealing ability; In cell body 6, fill the sealed fluid flow of wanting, build loam cake 7, the gas-pressurized flexible pipe is inserted in the pressure medium inlet 27 of loam cake 7, connect gas-pressurized (pressurized air or oxygen), start left motor 14 and begin experiment.In experimentation, can pass through to change the pressure of gas-pressurized, thereby change the pressure in the cell body, with the leakage rate and the sealing energy consumption of research two kinds of packoffs under different rotating speeds.Pressure in the cell body 6 can be read by tensimeter 19, because the consumption of gas is very little in experimentation, does not have in the laboratory under the situation of air compressor, and the oxygen in the available oxygen gas cylinder inserts cell body through oxygen gauge, and is not only convenient but also cheap.When sealing load was very low, available transparent hose was connected on the pressure medium inlet 27 and pours into clear water in transparent tube, and water surface elevation is promptly represented the force value in the cell body in the pipe.The interval time by observe leaking drop or the number of drops of per minute are determined the leakage rate of packoff.The sealing energy consumption that calculates each packoff by the electric current that shows on the switch board 20 and magnitude of voltage.The sealing property and the power consumption under same sealing load thereof that in experimentation, can reflect these two kinds of packoffs intuitively.The sealing property of stuffing seal mainly is subjected to the influence of filling property, loading method and gland 9 pressure, the sealing effectiveness of spiral sealing device mainly is subjected to the character of rotating speed, fluid media (medium) and many parameter influences of screw, and cover 3 changes above influence factor in rotating speed that can be by changing cover 3 in pressure medium, right axle 2 and the spiral in experimentation or the spiral of changing different helix parameters.A left side motor 14 and right motor 24 come speed change by the frequency converter separately that is contained in 20 li of switch boards, the rotating speed on a therefore right axle 2 and a left side spools 25 can be identical also can be inequality, to adapt to different requirement of experiment.
After experiment finishes, open ball valve 16 earlier, discharge the fluid media (medium) in the cell body 6, stop the running of right motor 14 and left motor 24 then, open loam cake 7 again and clean cell body 6 inside.
Claims (6)
1. hydraulic seal experimental provision, comprise base (1) and be arranged on cell body (6) on the base (1), it is characterized in that: cell body (6) is horizontal cylindrical shape, be connected with left end cap (8) and right end cap (5) respectively in the both sides of cell body (6), all there is circular axis hole in the central authorities of left end cap (8) and right end cap (5), be provided with axle sleeve (10) in the circular axis hole of left end cap (8), be provided with overcoat (4) in the circular axis hole of right end cap (5), the upright pipe of cell body (6) upper end is connected with loam cake (7), the upright roundlet pipe top of loam cake (7) central authorities is connected with tensimeter (19), this upright little pipe is provided with pressure medium inlet (27), cell body (6) bottom is provided with elbow (17) and ball valve (16) as the material floss hole, left motor (14) is connected with left side axle (25) by left side shaft joint (13), left side axle (25) closely cooperates with axle sleeve (10) by nut and left packing ring (15), and between left end cap (8) and axle sleeve (10), insert soft filler (18), also be provided with gland (9) in the outside of this soft filler (18), right motor (24) is connected with right spool (2) by shaft joint (23), and right axle (2) closely cooperates with the interior cover of spiral (3) that is installed in the overcoat (4) by nut and right packing ring (26).
2. hydraulic seal experimental provision according to claim 1 is characterized in that: said axle sleeve (10) and gland (9), left end cap have minim gap between (8).
3. hydraulic seal experimental provision according to claim 1 is characterized in that: between cover (3) and the overcoat (4) minim gap is arranged in the said spiral.
4. hydraulic seal experimental provision according to claim 1 is characterized in that: said right axle (2) is by bearing (21) and bearing (22) supporting.
5. hydraulic seal experimental provision according to claim 1 is characterized in that: said left side axle (25) is by bearing (11) and bearing (12) supporting.
6. hydraulic seal experimental provision according to claim 1 is characterized in that: said left and right motor (14,24) also is connected with the switch board that has frequency converter (20) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200320679U CN201051037Y (en) | 2007-06-19 | 2007-06-19 | Liquid sealing testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200320679U CN201051037Y (en) | 2007-06-19 | 2007-06-19 | Liquid sealing testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201051037Y true CN201051037Y (en) | 2008-04-23 |
Family
ID=39337527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200320679U Expired - Fee Related CN201051037Y (en) | 2007-06-19 | 2007-06-19 | Liquid sealing testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201051037Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359634A (en) * | 2014-10-22 | 2015-02-18 | 中国石油天然气股份有限公司 | Mechanical sealing leakage detection system and method |
-
2007
- 2007-06-19 CN CNU2007200320679U patent/CN201051037Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359634A (en) * | 2014-10-22 | 2015-02-18 | 中国石油天然气股份有限公司 | Mechanical sealing leakage detection system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 |