CN201688982U - Mechanical tripping function verification device in fluid environment - Google Patents
Mechanical tripping function verification device in fluid environment Download PDFInfo
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- CN201688982U CN201688982U CN201020168699XU CN201020168699U CN201688982U CN 201688982 U CN201688982 U CN 201688982U CN 201020168699X U CN201020168699X U CN 201020168699XU CN 201020168699 U CN201020168699 U CN 201020168699U CN 201688982 U CN201688982 U CN 201688982U
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- hydroecium
- main shaft
- verification device
- fluid environment
- bearing
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Abstract
The utility model discloses a mechanical tripping function verification device in a fluid environment, which mainly comprises a machine base, two supporting frames, a spindle, a driving device, a flying hammer tripping device, a speed measuring unit and a tripping monitoring unit. The supporting frames are arranged on the machine base; the spindle supported on the supporting frames is in transmission connection with the driving device; the flying hammer tripping device is arranged on the spindle; a water chamber is further arranged on the machine base; the spindle penetrates through the water chamber; back-pressure cavities are respectively arranged at the positions of a spindle inlet and a spindle outlet on the water chamber; and the flying hammer tripping device is arranged inside the water chamber. The mechanical tripping function verification device in the fluid environment has the advantages of capabilities of simulating a gas working condition of a flying hammer tripping structure and simultaneously simulating a fluid working condition when the water chamber and the back-pressure cavities are in the gas working condition, and applicability to verification and supply of parameter correction for various flying hammer designs under air and fluid pressure.
Description
Technical field
The utility model relates to a kind of demo plant of turbine rotor mechanical trip function, mechanical trip functional verification device in particularly a kind of fluid environment.
Background technology
It is very extensive that flyball tripping operation structure is used on steam turbine, the work condition environment of the structure of flyball tripping operation in the past is usually in gas, after the designer designs flyball tripping operation structure, can detect the performance of this device by the mechanical trip device demo plant under gaseous environment, mechanical trip device commonly used has two kinds of pin formula, flying barrel formulas, gas operating mode during by analog operation can effectively obtain the various aspects of performance of flyball tripping operation structure, and is respond well.
Along with the reach of science, flyball tripping operation product extends to the nuclear power field gradually, the operating mode of the flyball tripping mechanism of nuclear power device steam turbine is in the fluid environment of certain pressure is arranged, and in order to adapt to new operating mode, people design a kind of novel, at mechanical tripping device in fluid environment, comprise flyball, wherein, described flyball comprises female flyball and sub-flyball, wherein, female flyball is a closed shell; Sub-flyball is positioned at female flyball chamber, and its movement locus and female flyball axially parallel, the barycenter of sub-flyball depart from tripgear center, the close end that flies out.Because when whole device is in the fluid environment, because fluid is to its influence, comprise pressure, the uncertainty of temperature factor, flyball tripping operation structure each side characteristic with in gaseous environment, differ widely, original mechanical trip device under gaseous environment (as pin formula, flying barrel formula) can not satisfy the operating mode fluid environment under, and the trip checking of structure each side characteristic has brought difficulty to flyball.At present, the relevant report of the mechanical trip device that Shang Weiyou can use under fluid environment after the technician designs this flyball tripping mechanism, is badly in need of the special-purpose demo plant of a cover, is used to detect the operating characteristic of flyball tripping mechanism.
Summary of the invention
The purpose of this utility model is that provide for the deficiency that solves above-mentioned technology a kind of simulates mechanical trip functional verification device in the fluid environment of flyball tripping operation product fluid operating mode.
In order to achieve the above object, mechanical trip functional verification device in the designed fluid environment of the utility model, it mainly comprises support, two bearing supports, main shaft, drive unit, the flyball tripgear, the unit tests the speed, the tripping operation monitoring means, bearing support is arranged on the support, its upper support has main shaft, main shaft and drive unit are in transmission connection, the flyball tripgear is arranged on the main shaft, also be provided with a hydroecium on the described support, described main shaft passes this hydroecium, be provided with back pressure cavity respectively at enterprising axle mouth of hydroecium and shaft mouth place, described flyball tripgear is arranged in the hydroecium.It is identical that hydroecium can be simulated the residing fluid operating mode of flyball tripgear, and back pressure cavity can be simulated the operating mode of shaft end in the fluid environment.
Preferred scheme is (to be " left side " near drive unit one side about described hydroecium, opposite side is " right side ") be respectively equipped with the submerged bearing that runs through sidewall on the sidewall, thereby form one and advance axle mouth and a shaft mouth, described main shaft is equipped with in submerged bearing and passes hydroecium, on the described hydroecium sidewall, the opposite position place of advancing axle mouth and shaft mouth is connected with flange respectively, between hydroecium sidewall and two flanges, form two back pressure cavity, in order further to reach the mechanical seal effect, prevent water in the hydroecium by main shaft to the bearing support seepage, all be connected with water retaining disk on described two side flanges, described water retaining disk matches with main shaft, makes main shaft pass both sides water retaining disk and mechanical seal.
As preferably, mechanical trip functional verification device also comprises water supply circulatory system in the described fluid environment, all is provided with water inlet pipe and return pipe on described two back pressure cavity and the hydroecium, and water inlet pipe links to each other with water supply circulatory system with return pipe.
In order to reach further mechanical seal effect, described water retaining disk divides inside and outside two-layer, and the internal layer water retaining disk is connected on the flange, and outer water retaining disk is connected on the internal layer water retaining disk, and water retaining disk is provided with scupper, and scupper is communicated with water supply circulatory system by the pipe that leaks.
As preferably, described water supply circulatory system mainly is made up of water tank, forcing pump and reduction valve, and described water inlet pipe, return pipe and the Guan Douyu water tank that leaks are communicated with, and are provided with forcing pump and reduction valve on water inlet pipe.Operation can be crossed, different pressure can be in back pressure cavity, hydroecium, obtained reduction valve.
As preferably, described bearing support is provided with bearing seat, is provided with two spring bearings in the bearing seat, two back-to-back and tight installations of spring bearing, thus can obtain the good supporting effect.
As preferably, the bearing support that is positioned at the hydroecium right side is provided with the preload spring, and this preload spring is positioned at the bearing seat left side.
As preferably, described hydroecium top is provided with tank lid, and tank lid is provided with the gas outlet that links to each other with hydroecium, and gas outlet is provided with vent valve.
As preferably, described back pressure cavity is provided with pressure sensing cell.
Mechanical trip functional verification device in the resulting fluid environment of the utility model, when hydroecium and back pressure cavity are the gas operating mode, can simulate the gas operating mode of flyball tripping operation structure, simultaneously can simulate the fluid operating mode again, be applicable under air and the hydrodynamic pressure, verify and provide parameter correction all kinds of flyball designs.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
Fig. 3 is the structural representation of the utility model embodiment 3;
Fig. 4 is the enlarged drawing at A place among Fig. 3.
Among the figure: support 1, bearing support 2, main shaft 3, drive unit 4, flyball tripgear 5, the unit 6 that tests the speed, tripping operation monitoring means 7, hydroecium 8, flange 9, submerged bearing 10, back pressure cavity 11, water inlet pipe 12, return pipe 13, water retaining disk 14, bearing seat 15, spring bearing 16, preload spring 17, water tank 18, forcing pump 19, reduction valve 20, tensimeter 21, tank lid 22, gas outlet 23, vent valve 24.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
As shown in Figure 1, mechanical trip functional verification device in the fluid environment that present embodiment is described, it mainly comprises support 1, bearing support 2, main shaft 3, drive unit 4, flyball tripgear 5, unit 6 tests the speed, tripping operation monitoring means 7, bearing support 2 is arranged on the support 1, its upper support has main shaft 3, main shaft 3 is in transmission connection with drive unit 4, flyball tripgear 5 is arranged on the main shaft 3, also be provided with a hydroecium 8 on the described support 1, described main shaft 3 passes this hydroecium 8, be provided with back pressure cavity 11 respectively at hydroecium 8 enterprising axle mouths and shaft mouth place, described flyball tripgear 5 is arranged in the hydroecium 8.
After hydroecium 8 and back pressure cavity 11 are full of water, can simulate the fluid operating mode of flyball tripping operation structure, and according to the difference of the real fluid operating mode of flyball tripping operation structure, but the hydraulic pressure of manual change's hydroecium 8 and back pressure cavity 11 (increasing hydraulic pressure), density etc. as adopting pressurized air.
As shown in Figure 2, mechanical trip functional verification device in the fluid environment that present embodiment is described, it mainly comprises support 1, two bearing supports 2, main shaft 3, drive unit 4, flyball tripgear 5, unit 6 tests the speed, tripping operation monitoring means 7, bearing support 2 is arranged on the support 1, its upper support has main shaft 3, main shaft 3 is in transmission connection with drive unit 4, flyball tripgear 5 is arranged on the main shaft 3, also be provided with a hydroecium 8 on the described support 1, two bearing supports 2 are separately positioned on hydroecium 8 both sides, be respectively equipped with the submerged bearing 10 that runs through sidewall on hydroecium 8 left and right sides sidewalls, thereby form one and advance axle mouth and a shaft mouth, described main shaft 3 is equipped with in submerged bearing 10 and passes hydroecium 8, and described flyball tripgear 5 is arranged in the hydroecium 8; On described hydroecium 8 sidewalls, advance axle mouthful and the opposite position place of shaft mouth is connected with flange 9 respectively, between hydroecium 8 sidewalls and two flanges 9, form two back pressure cavity 11, all be provided with water inlet pipe 12 and return pipe 13 on described two back pressure cavity 11 and the hydroecium 8, water inlet pipe 12 links to each other with water supply circulatory system with return pipe 13; All be connected with water retaining disk 14 on described two side flanges 9, described water retaining disk 14 matches with main shaft 3, makes main shaft 3 pass both sides water retaining disk 14 and mechanical seal.
Described water supply circulatory system mainly is made up of water tank 18, forcing pump 19 and reduction valve 20, and described water inlet pipe 12 and return pipe 13 all are communicated with water tank 18, is provided with forcing pump 19 and reduction valve 20 on water inlet pipe 12.By reduction valve 20 is set respectively, keeping the pressure at hydroecium 8 places is 5 kilograms, simulation flyball tripgear 5 residing operating modes, and keeping the pressure of back pressure cavity 11 is 2 kilograms, is used for simulating the operating mode of fluid environment shaft end.
As Fig. 3, shown in 4, mechanical trip functional verification device in the fluid environment that present embodiment is described, it mainly comprises support 1, two bearing supports 2, main shaft 3, drive unit 4, flyball tripgear 5, unit 6 tests the speed, tripping operation monitoring means 7, bearing support 2 is arranged on the support 1, its upper support has main shaft 3, wherein all be provided with bearing seat 15 on each bearing support 2, all be provided with two spring bearings 16 in the bearing seat 15, two spring bearing 16 back-to-back and tight installations, main shaft 3 is equipped with in spring bearing 16, be provided with preload spring 17 on the bearing support 2 that is positioned at hydroecium 8 right sides, this preload spring 17 is positioned at bearing seat 15 left sides.Adopt springs preload lotus mode, avoid causing vibration owing to the fluid high-speed friction makes a thermal elongation and bearing temperature rise cause bending shaft to produce new imbalance.When the axle thermal elongation, spring axially promotes bearing outer ring under the effect of preload, guarantees the running accuracy of axle.
Described hydroecium top is provided with tank lid 22, and tank lid 22 is provided with the gas outlet 23 that links to each other with hydroecium, and gas outlet 23 is provided with vent valve 24.
In order further to reach the mechanical seal effect, prevent that the water in the hydroecium 8 from passing through main shaft 3 to bearing support 2 seepages, two-layer inside and outside the described water retaining disk 14 minutes, internal layer water retaining disk 14 is connected on the flange 9, outer water retaining disk 14 is connected on the internal layer water retaining disk 14, water retaining disk 14 is provided with scupper, and scupper is communicated with water supply circulatory system.
When checking, when steam turbine machinery flyball reaches design speed, flyball ejects, trigger tripping lever feedback electric signal, tripping operation monitoring means 7 can detect this process, and can be by unit 6 and the registering instrument record tripping operation rotating speed that tests the speed, and be foundation with the record rotary speed data, carry out the reconditioning of sub-flyball centroid offset.
Claims (9)
1. mechanical trip functional verification device in the fluid environment, it mainly comprises support, two bearing supports, main shaft, drive unit, flyball tripgear, the unit that tests the speed, tripping operation monitoring means, bearing support is arranged on the support, its upper support has main shaft, main shaft and drive unit are in transmission connection, the flyball tripgear is arranged on the main shaft, it is characterized in that also being provided with on the described support hydroecium, described main shaft passes this hydroecium, be provided with back pressure cavity respectively at enterprising axle mouth of hydroecium and shaft mouth place, described flyball tripgear is arranged in the hydroecium.
2. mechanical trip functional verification device in the fluid environment according to claim 1, it is characterized in that being respectively equipped with the submerged bearing that runs through sidewall on the sidewall of the described hydroecium left and right sides, thereby form one and advance axle mouth and a shaft mouth, described main shaft is equipped with in submerged bearing and passes hydroecium, on the described hydroecium sidewall, the opposite position place of advancing axle mouth and shaft mouth is connected with flange respectively, between hydroecium sidewall and two flanges, form two back pressure cavity, all be connected with water retaining disk on described two side flanges, described water retaining disk matches with main shaft, makes main shaft pass both sides water retaining disk and mechanical seal.
3. mechanical trip functional verification device is characterized in that also comprising water supply circulatory system in the fluid environment according to claim 2, all is provided with water inlet pipe and return pipe on described two back pressure cavity and the hydroecium, and water inlet pipe links to each other with water supply circulatory system with return pipe.
4. mechanical trip functional verification device in the fluid environment according to claim 3, it is inside and outside two-layer to it is characterized in that described water retaining disk divides, the internal layer water retaining disk is connected on the flange, outer water retaining disk is connected on the internal layer water retaining disk, water retaining disk is provided with scupper, and scupper is communicated with water supply circulatory system by the pipe that leaks.
5. mechanical trip functional verification device in the fluid environment according to claim 4, it is characterized in that described water supply circulatory system mainly is made up of water tank, forcing pump and reduction valve, described water inlet pipe, return pipe and the Guan Douyu water tank that leaks are communicated with, and are provided with forcing pump and reduction valve on water inlet pipe.
6. according to mechanical trip functional verification device in claim 1 or 2 or 3 or the 4 or 5 described fluid environments, it is characterized in that described bearing support is provided with bearing seat, be provided with two spring bearings in the bearing seat, two back-to-back and tight installations of spring bearing.
7. mechanical trip functional verification device in the fluid environment according to claim 6 is characterized in that the bearing support that is positioned at the hydroecium right side is provided with the preload spring, and this preload spring is positioned at the bearing seat left side.
8. mechanical trip functional verification device in the fluid environment according to claim 7 is characterized in that described hydroecium top is provided with tank lid, and tank lid is provided with the gas outlet that links to each other with hydroecium, and gas outlet is provided with vent valve.
9. mechanical trip functional verification device in the fluid environment according to claim 8 is characterized in that described back pressure cavity is provided with pressure sensing cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020168699XU CN201688982U (en) | 2010-04-23 | 2010-04-23 | Mechanical tripping function verification device in fluid environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020168699XU CN201688982U (en) | 2010-04-23 | 2010-04-23 | Mechanical tripping function verification device in fluid environment |
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| CN201688982U true CN201688982U (en) | 2010-12-29 |
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| CN201020168699XU Expired - Fee Related CN201688982U (en) | 2010-04-23 | 2010-04-23 | Mechanical tripping function verification device in fluid environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813574A (en) * | 2010-04-23 | 2010-08-25 | 杭州汽轮机股份有限公司 | Mechanical tripping operation function verification device in fluid environment |
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2010
- 2010-04-23 CN CN201020168699XU patent/CN201688982U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813574A (en) * | 2010-04-23 | 2010-08-25 | 杭州汽轮机股份有限公司 | Mechanical tripping operation function verification device in fluid environment |
| CN101813574B (en) * | 2010-04-23 | 2012-10-17 | 杭州汽轮机股份有限公司 | Mechanical tripping operation function verification device in fluid environment |
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| Date | Code | Title | Description |
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| 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: 20101229 Termination date: 20130423 |