CN112197069A - Generator stator catchment pipe fixing device - Google Patents
Generator stator catchment pipe fixing device Download PDFInfo
- Publication number
- CN112197069A CN112197069A CN202010914228.7A CN202010914228A CN112197069A CN 112197069 A CN112197069 A CN 112197069A CN 202010914228 A CN202010914228 A CN 202010914228A CN 112197069 A CN112197069 A CN 112197069A
- Authority
- CN
- China
- Prior art keywords
- bushing
- base
- fixing device
- generator stator
- pressing block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a generator stator catchment pipe fixing device, which comprises: the stator comprises a base, a pressing block and a plurality of clamping pieces, wherein the base is used for being connected with a stator base annular plate, the pressing block is fixedly connected with the base, and a channel is formed between the pressing block and the base; the bushing is positioned in the channel, and the inside of the bushing is used for accommodating the water collecting pipe; the elastic boss is arranged on the bushing and located between the bushing and the pressing block, and the generator stator water collecting pipe fixing device is adopted, so that the water collecting pipe is fixed at a specified position, the water collecting pipe is allowed to be in a free stretching state, thermal stress is avoided, resonance can be inhibited, vibration transmission is avoided, the base is insulated by the water collecting pipe, the installation and the replacement are convenient, the operation and the maintenance are convenient, and the safe operation of a generator is ensured.
Description
Technical Field
The invention relates to the field of turbonators, in particular to a fixing device for a generator stator water collecting pipe.
Background
The high-position arranged generator set can shorten the length of a steam pipeline between a boiler and a steam turbine, reduce the pressure loss of fluid, reduce the temperature loss and improve the overall efficiency. The platform elevation of a traditional low-position arranged generator set is generally about 10 meters, the platform elevation of the high-position arranged generator set is designed to be close to the height of a boiler superheater tube, for a 600 MW-grade ultra-supercritical unit, the platform elevation of the generator set is close to about 70 meters and is influenced by the vibration characteristic of a building structure, the support characteristic of the platform of the generator set is different from that of the traditional structure, the vibration disturbance generated by the building structure is increased, low-frequency and ultra-low-frequency yaw disturbance occurs, and the stability of a generator set shaft system is threatened more; meanwhile, the disturbance force can be mixed and modulated with the fundamental frequency and the frequency multiplication vibration of the generator, so that the structure of the generator is affected by more serious vibration, abnormal abrasion and looseness are generated, and accident potential is formed.
The water collecting pipe is an important structure of a water-hydrogen-cooled turbine generator stator cooling water system and is also a part with multiple problems, the water collecting pipe has the functions of distributing and conveying stator winding cooling water to the interior of a stator winding and collecting and discharging the stator winding cooling water, and if the structure has a vibration problem, serious consequences can be caused: the problems of abrasion and water leakage caused by vibration of the excitation insulation water conduit and vibration and abrasion of the end part of the stator can cause the pressure failure of an insulation system of the generator and cause major accidents.
Disclosure of Invention
The invention discloses a fixing device for a generator stator water collecting pipe, which aims to solve the problem of vibration of the water collecting pipe.
In order to solve the problems, the invention adopts the following technical scheme:
a generator stator catchment pipe fixture, comprising:
a base for connection with a stator frame ring plate,
the pressing block is fixedly connected with the base, and a channel is formed between the pressing block and the base;
the bushing is positioned in the channel, and the inside of the bushing is used for accommodating the water collecting pipe;
the bushing is further provided with an elastic boss, and the elastic boss is located between the bushing and the pressing block.
The lining is a polytetrafluoroethylene lining.
The bush comprises the two parts of symmetry, and it is first bush portion and second bush portion respectively, the bush outside sets up fixed clamp, fixed clamp is used for with first bush portion with second bush portion is fixed extremely on the catchment pipe.
The bush both ends are equipped with the recess respectively, fixed clamp is located in the recess.
The elastic boss is of a hollow structure, one side of the elastic boss is connected with the bushing, and the other side of the elastic boss is abutted to the pressing block.
The elastic boss is a polytetrafluoroethylene elastic boss, and the elastic boss and the bushing are integrally arranged.
The briquetting include with the main part that the base is relative with be located respectively the connecting portion at main part both ends, connecting portion are located the main part with between the base, be used for connecting the main part with the base.
The connecting part is fixedly connected with the base through a screw fastener.
One side of the elastic boss is connected with the bushing, the other side of the elastic boss is abutted to the connecting part, and the base, the main body and the other connecting part are respectively abutted to the bushing.
The elastic lug boss is arranged along the radial direction of the stator base annular plate, and the elastic lug boss is abutted to the connecting portion along the radial direction of the stator base annular plate.
The technical scheme adopted by the invention can achieve the following beneficial effects: by adopting the fixing device for the generator stator water collecting pipe, the water collecting pipe is fixed at a specified position, the water collecting pipe is allowed to be in a free stretching state, the generation of thermal stress is avoided, resonance can be inhibited, vibration transmission is avoided, the insulation of the water collecting pipe on a base is realized, the installation and the replacement are convenient, the operation and the maintenance are convenient, and the safe operation of a generator is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the installation of the fixing device of the generator stator water collecting pipe of the present invention;
FIG. 2 is a schematic structural view of a generator stator water collecting pipe fixing device according to the present invention;
FIG. 3 is a schematic structural view of a bushing of the fixing device for the water collecting pipe of the generator stator according to the present invention;
fig. 4 is a schematic structural diagram of a bushing of the fixing device of the generator stator water collecting pipe of the invention.
Description of reference numerals:
1 fixing device
2 base
3 briquetting
31 main body
32 connecting part
4 liner
41 first bushing part
42 second bushing part
5 elastic boss
6 fixed clamp
7 channel
8 screw fastener
9 catchment pipe
10 stator frame ring plate
11 groove
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1-4, the present invention provides a fixing device for a generator stator water collecting pipe, where the fixing device 1 includes a base 2, a pressing block 3, and a bushing 4, the base 2 is used to connect with a stator base ring plate 10, the pressing block 3 is fixedly connected with the base 2, a channel 7 is formed between the pressing block 3 and the base 2, the bushing 4 is located in the channel 7, the bushing 4 is used to accommodate the water collecting pipe 9, and an elastic boss 5 is further provided on the bushing 4, and the elastic boss 5 is located between the bushing 4 and the pressing block 3. The fixing device 1 is used for installing the water collecting pipe 9 on the annular plate 10 of the stator base, the fixing device is particularly suitable for fixing the water collecting pipe of the stator of the high-position arranged water-hydrogen turbine generator, the building structure of the high-position arranged generator set platform can generate larger low-frequency and ultralow-frequency yaw disturbance, so that the structure of the generator is seriously influenced by vibration, the water collecting pipe is an important structure of a water-hydrogen turbine generator stator cooling water system and is also a part with multiple problems, if the structure has vibration problems, serious consequences can be caused, the fixing device of the invention ensures that the water collecting pipe is fixed at a preset position, allows the water collecting pipe to be in a free stretching state, avoids generating thermal stress, can inhibit resonance, avoids vibration transmission, realizes the insulation of the water collecting pipe on the base, is convenient to install and replace, is convenient to operate and maintain, and ensures the safe operation of the generator.
In the embodiment of the invention, the lining 4 is a polytetrafluoroethylene lining which has good internal damping characteristic, can inhibit resonance and avoid vibration transmission, has excellent insulating property, realizes the insulation of the water collecting pipe to the annular plate of the stator base, and meets the requirements of the DC withstand voltage test regulations of the generator.
As shown in fig. 3, the lining 4 is composed of two symmetrical parts, which are a first lining part 41 and a second lining part 42, respectively, a fixing clamp 6 is arranged outside the lining 4, the fixing clamp 6 is used for fixing the first lining part 41 and the second lining part 42 to the water collecting pipe 9, and the lining 4 is composed of two parts, which are easy to assemble with the water collecting pipe 9 and symmetrical and convenient to process. Preferably, the two ends of the bushing 4 are respectively provided with a groove 11 (see fig. 4), the fixing clamp 6 is positioned in the groove 11, and the fixing clamp 6 is positioned in the groove 11 without influencing the abutment of the bushing and the pressing block.
In the embodiment of the invention, the elastic boss 5 is of a hollow structure, one side of the elastic boss 5 is connected with the lining 4, and the other side of the elastic boss 5 is abutted against the pressing block 3, so that when the pressing block 3 vibrates, the elastic boss 5 can absorb the vibration and avoid the vibration from being transmitted to the water collecting pipe 9. The elastic boss 5 is a polytetrafluoroethylene elastic boss, and the elastic boss 5 and the bushing are integrally arranged. The polytetrafluoroethylene has good internal damping characteristic, can inhibit resonance and avoid vibration transmission, has excellent insulating property, realizes the insulation of the water collecting pipe on the machine base, and meets the requirements of the direct-current withstand voltage test regulations of the generator.
In the embodiment of the present invention, the pressing block 3 includes a main body 31 opposite to the base 2 and connecting portions 32 respectively located at both ends of the main body 31, and the connecting portions 32 are located between the main body 31 and the base 2 for connecting the main body 31 and the base 2. During installation, a plurality of fixing devices are uniformly distributed on the stator base annular plate 10, the base 2 is connected with the stator base annular plate 10, the main body 31 is opposite to the base 2, the two connecting parts 32 are located between the main body 31 and the base 2, the two connecting parts 32 are arranged along the radial direction of the stator base annular plate 10, one connecting part is located at a position close to the inner side in the radial direction, and the other connecting part is located at a position close to the outer side in the radial direction. Because the base 2 is welded on the annular plate 10 of the stator base along the circumference in a distributed manner, the pressing block 3 is fixed on the base 2 by using screw fasteners 8 (such as fixing bolts), and a channel 7 formed between the base 2 and the pressing block 3 forms limiting fixation on the water collecting pipe 9 through a polytetrafluoroethylene lining, so that the water collecting pipe is fixed at a preset position.
One side of the elastic boss 5 is connected with the bush 4, the other side of the elastic boss is abutted against the connecting part 32, and the base 2, the main body 31 and the other connecting part 32 are respectively abutted against the bush 4. The elastic boss 5 is arranged along the radial direction of the stator frame ring plate 10, and the elastic boss 5 is abutted with the connecting part 32 along the radial direction of the stator frame ring plate 10. The elastic projection 5 can make the water collecting pipe 9 freely stretch.
Because the elastic lug boss 5 contacts with the radial outward connecting part 32 of the pressing block, the water collecting pipe 9 is allowed to move in the direction, when the diameter size of the water collecting pipe 9 is increased due to the temperature rise of the water collecting pipe 9, the elastic lug boss 5 is compressed to release space, the water collecting pipe 9 is allowed to be in a free stretching state, the generation of thermal stress is avoided, and the elastic lug bosses distributed along the circumference have the same resilience, so that the center of the water collecting pipe is still in the original position, and the deformation of the insulating water guiding pipe caused by the position change is avoided.
Preferably, the connecting portion 32 is fixedly connected to the base 2 by a screw fastener 8 (e.g., a fixing bolt). Of course, the connecting portion 32 and the base 2 may be connected in other ways.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A generator stator catchment pipe fixing device, its characterized in that includes:
a base (2), the base (2) is used for being connected with a stator base ring plate (10),
the pressing block (3) is fixedly connected with the base (2), and a channel (7) is formed between the pressing block (2) and the base (2);
a bushing (4), said bushing (4) being located inside said channel (7), said bushing (7) being internally adapted to house said water collection pipe (7);
the pressing block is characterized in that an elastic boss (5) is further arranged on the bushing (4), and the elastic boss (5) is located between the bushing (4) and the pressing block (3).
2. Generator stator collector pipe fixture according to claim 1, characterised in that said bushing (4) is a teflon bushing.
3. Generator stator collector pipe fixture according to claim 2, characterised in that said bushing (4) consists of two symmetrical parts, respectively a first bushing part (41) and a second bushing part (42), said bushing (4) being externally provided with a fixing clip (6), said fixing clip (6) being used to fix said first bushing part (41) and said second bushing part (42) to said collector pipe (9).
4. Generator stator collector pipe fixing device according to claim 3, characterised in that the bush (4) is provided with a groove (11) at each end, the fixing clip (6) being located in the groove (11).
5. The generator stator collector tube fixing device of claim 1, wherein the elastic boss (5) is of a hollow structure, one side of the elastic boss (5) is connected with the bushing (4), and the other side of the elastic boss is abutted against the pressing block (3).
6. The generator stator collector tube fixing device according to claim 5, wherein the elastic boss (5) is a polytetrafluoroethylene elastic boss, and the elastic boss (5) is integrally arranged with the bushing (4).
7. Generator stator collector tube fixture according to claim 1, characterised in that said pressing block (3) comprises a body (31) opposite to said base (2) and connecting parts (32) at the two ends of said body, respectively, said connecting parts 932 being located between said body (31) and said base (2) for connecting said body (31) and said base (2).
8. Generator stator header fixing device according to claim 7, wherein the connection portion (32) is fixedly connected to the base (2) by means of screw fasteners (8).
9. Generator stator collector tube fixing device according to claim 7, wherein the elastic boss (5) is connected to the bushing (4) on one side and is in abutment with the connection part (32) on the other side, and the base (2), the body (31) and the other connection part (32) are in abutment with the bushing (4) respectively.
10. Generator stator header fixing device according to claim 9, wherein the resilient projections (5) are arranged radially outwards of the stator frame ring plate (10), the resilient projections (5) abutting connection portions (32) radially outwards of the stator frame ring plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914228.7A CN112197069B (en) | 2020-09-03 | 2020-09-03 | Generator stator catchment pipe fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914228.7A CN112197069B (en) | 2020-09-03 | 2020-09-03 | Generator stator catchment pipe fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112197069A true CN112197069A (en) | 2021-01-08 |
| CN112197069B CN112197069B (en) | 2022-07-19 |
Family
ID=74005830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010914228.7A Active CN112197069B (en) | 2020-09-03 | 2020-09-03 | Generator stator catchment pipe fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112197069B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205896393U (en) * | 2016-07-19 | 2017-01-18 | 上海阿勒法船舶设备有限公司 | Vibration isolation clamp ring that makes an uproar falls in pipeline |
| JP2017106507A (en) * | 2015-12-08 | 2017-06-15 | 日立Ｇｅニュークリア・エナジー株式会社 | Support device |
| CN210240896U (en) * | 2019-06-22 | 2020-04-03 | 东莞市建工集团有限公司 | Fire control installing support |
| CN110985759A (en) * | 2019-12-02 | 2020-04-10 | 扬中市宏辉橡胶制品有限公司 | Novel buckle for automobile air conditioner pipe |
| CN210830986U (en) * | 2019-06-28 | 2020-06-23 | 青岛奥利凯中央空调有限公司 | Novel pipeline shock attenuation is taken precautions against earthquakes device |
-
2020
- 2020-09-03 CN CN202010914228.7A patent/CN112197069B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017106507A (en) * | 2015-12-08 | 2017-06-15 | 日立Ｇｅニュークリア・エナジー株式会社 | Support device |
| CN205896393U (en) * | 2016-07-19 | 2017-01-18 | 上海阿勒法船舶设备有限公司 | Vibration isolation clamp ring that makes an uproar falls in pipeline |
| CN210240896U (en) * | 2019-06-22 | 2020-04-03 | 东莞市建工集团有限公司 | Fire control installing support |
| CN210830986U (en) * | 2019-06-28 | 2020-06-23 | 青岛奥利凯中央空调有限公司 | Novel pipeline shock attenuation is taken precautions against earthquakes device |
| CN110985759A (en) * | 2019-12-02 | 2020-04-10 | 扬中市宏辉橡胶制品有限公司 | Novel buckle for automobile air conditioner pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112197069B (en) | 2022-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205781424U (en) | A kind of convenient diameter-variable pipe tuned mass damper structure | |
| CN112197069B (en) | Generator stator catchment pipe fixing device | |
| CN106247401B (en) | Damping device for components in a turbomachine and method for assembling said damping device | |
| CN112082031A (en) | Large-scale assembled straight tube pressure balance type expansion joint | |
| CN218992741U (en) | Novel gas pipeline compensator | |
| CN116255414A (en) | Oil film damper | |
| JP2012115136A (en) | Support system for dynamoelectric machine | |
| CN109755908A (en) | GIS bus and its bus telescoping section | |
| CN108003953A (en) | molecular sieve dehydration device for natural gas | |
| KR101902619B1 (en) | Spray Nozzle for Superheater Attemperator | |
| CN211976247U (en) | Corrugated pipe expansion joint capable of prolonging service life | |
| CN106287093A (en) | Hydraulic turbine vibrationproof balance pipe | |
| CN210687442U (en) | Temperature and pressure reduction device orifice plate mounting structure | |
| CN112555512A (en) | Steam pipeline heat insulation sliding support and steam pipeline system | |
| CN220910763U (en) | Clamping type expansion device | |
| CN218376925U (en) | Easy dismounting's high temperature concentrated sulfuric acid submerged pump | |
| CN115163729B (en) | Circumferential array type inhaul cable vibration energy dissipation ring based on acoustic black hole beam | |
| CN218326205U (en) | Mechanical sealing device for preventing particles of corrugated pipe | |
| RU196407U1 (en) | DEVICE FOR FIXING PIPE JOINT IN AXIAL DIRECTION | |
| KR20200011771A (en) | Bellows establishing method for Heat Recovery Steam Generators | |
| CN212537024U (en) | Pipeline connection structure and EVA production device using same | |
| CN221054193U (en) | Dynamic vibration absorber suitable for small branch pipe | |
| CN210600441U (en) | Multifunctional pipe clamp | |
| CN214247573U (en) | Wind power generation structure with mounting assembly | |
| CN220570262U (en) | CPVC cable tube coupling assembling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |