CN201945420U - Dynamic balancing structure of compressor impeller - Google Patents
Dynamic balancing structure of compressor impeller Download PDFInfo
- Publication number
- CN201945420U CN201945420U CN2010206923898U CN201020692389U CN201945420U CN 201945420 U CN201945420 U CN 201945420U CN 2010206923898 U CN2010206923898 U CN 2010206923898U CN 201020692389 U CN201020692389 U CN 201020692389U CN 201945420 U CN201945420 U CN 201945420U
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- CN
- China
- Prior art keywords
- impeller
- uneven piece
- unbalance
- amount
- transient equilibrium
- 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.)
- Expired - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/662—Balancing of rotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a centrifugal compressor set device, in particular to a dynamic balancing structure of a compressor impeller, which is characterized in that: an unbalanced block which is used for balancing the amount of unbalance of the impeller is installed on the impeller, and the unbalanced block is installed inside a mounting port on the back surface of the impeller through a screw; and the middle part of the unbalanced block is provided with a threaded hole. Due to adoption of the dynamic balancing structure of the compressor impeller, the amount and the direction of the unbalance can be precisely controlled, the surface quality of the impeller is not damaged, the balance precision requirement of the impeller can be satisfied within a short time, the requirement on the operation personnel is low, and a great amount of manpower and material resources can be saved.
Description
Technical field
The utility model relates to Systems of Centrifugal Compressor Unit equipment, specifically a kind of transient equilibrium structure of compressor impeller.
Background technology
Centrifugal compressor is the nucleus equipment of a plurality of fields key devices such as petrochemical complex, metallurgy, natural gas transport, power, its operation conditions direct relation the productivity effect of whole device down to whole industry, and it is bringing into play important effect in the national economic development.Along with development of modern industry, the user is more and more higher to the requirement of centrifugal compressor, and this makes centrifugal compressor trend towards precise treatment and high speed, so it is increasingly important to eliminate the problem of centrifugal compressor vibration.
For centrifugal compressor, the vibration of its rotation parts (being referred to as rotor) will directly have influence on efficient, life-span and the personal safety of whole unit; And the unbalance dynamic vibrative one of the main reasons of centrifugal compressor just.The unbalance dynamic problem of rotor, briefly, be exactly since the deviation of gravity center of rotor the rotation geometry center line of rotor, consequent centrifugal force rotates with rotor during the rotor rotation, thereby excites the installation basis (as bearing seat, support, cabinet, vehicle body etc.) of rotor and rotor to produce vibration.Therefore, in order to solve the machine vibration problem effectively, rotary body (hereinafter to be referred as rotor) is carried out the transient equilibrium school survey one of the technological measure that is absolutely necessary.
The amount of unbalance overwhelming majority of compressor rotor is from impeller, and the balance quality that improves impeller just means the balance quality that improves compressor rotor.Traditional transient equilibrium school survey mode is to rely on artificial polishing, need directly to polish at the uneven place of impeller surface, reaching the purpose of removing amount of unbalance, mode is surveyed in such transient equilibrium school has damage to the impeller surface quality, and in bruting process, the polishing amount is uncontrollable, can only rely on master worker's experience, polish once, the school is surveyed once, need to survey, just can reach the balance quality that compressor impeller needs by repeatedly polishing, school many times.At present, along with compressor maximizes, the development of precise treatment, when must cause the amount of unbalance increase of compressor rotor, also need to remove more amount of unbalance, to satisfy the higher balance quality requirement of compressor rotor.Because tradition wastes time and energy by the transient equilibrium school survey mode of artificial polishing, is undoubtedly a kind of method of getting half the result with twice the effort, and can not adapt to the demand of large-scale compressor technical development.
The utility model content
Rely on artificial polishing to carry out the problems referred to above that the survey of transient equilibrium school exists in order to solve tradition, the purpose of this utility model is to provide a kind of transient equilibrium structure of compressor impeller.
The purpose of this utility model is achieved through the following technical solutions:
The utility model is equipped with the uneven piece that is used for the amount of unbalance of balance impeller own on impeller.
Wherein: the back side of described impeller has installing port, by screw uneven piece is installed in installing port; The centre of described uneven piece has threaded hole; The top margin of described uneven piece axial cross section parallels with the base, and side is two crossing straight lines; Article two, the angle between the crossing straight line is the obtuse angle; The top margin of described uneven piece axial cross section parallels with the base, side parallel with the center line of uneven piece and respectively with top margin and base chamfering; Described uneven piece axial cross section is trapezoidal, and top margin parallels with the base, difference rounding between trapezoidal dual-side and the base.
Advantage of the present utility model and good effect:
1. the utility model can accurately be controlled the size and Orientation of amount of unbalance, does not damage the impeller surface quality, can satisfy the requirement of impeller balance quality within a short period of time, and less demanding to operating personnel can be saved a large amount of human and material resources costs.
2. uneven piece profile of the present utility model is simple, easy to process, can form the series of a standard, can select for use arbitrarily by the size of amount of unbalance.
3. the utility model does not need the impeller surface of polishing, and can not cause the mass defect on tumbler surface.
4. the utility model is accurately located by screw thread, installs simple.
5. the utility model does not need repeatedly the school to survey the amount of unbalance of impeller, can realize the requirement of rotor to balance quality fast.
Description of drawings
Fig. 1 is the structural representation of the utility model compressor impeller;
Fig. 2 is structural representation of the present utility model (cut-open view is looked on the right side that is Fig. 1);
Fig. 3 is the partial enlarged drawing at I place among Fig. 2;
Fig. 4 is that the F of Fig. 3 is to view;
Fig. 5 is a kind of structure cut-open view of the uneven piece of the utility model;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the another kind of structure cut-open view of the uneven piece of the utility model;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is another structure cut-open view of the uneven piece of the utility model;
Figure 10 is the left view of Fig. 9;
Wherein: 1 is impeller, and 2 is uneven piece, and 3 is installing port, and 4 is threaded hole.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Traditional balance mode is that remaining amount of unbalance is got rid of to reach the requirement of balance quality of rotor from impeller, and the utility model is from opposite direction, by on impeller, increasing new amount of unbalance, thereby the mutual balance of amount of unbalance with impeller itself reaches the required balance quality requirement of impeller.
Shown in Fig. 1～4, the utility model has installing port 3 at the back side of impeller 1, be useful on the uneven piece 2 of the amount of unbalance of balance impeller own in installing port 3 by screw retention, the centre of uneven piece 2 has threaded hole 4, and screw passes, is fixed in the installing port 3 of impeller 1 by threaded hole 4.
Uneven piece 2 of the present utility model has three kinds of structures, and as Fig. 5, shown in Figure 6, the top margin of uneven piece 2 axial cross sections parallels with the base, and side is two crossing straight lines, and the angle between two crossing straight lines is the obtuse angle; As Fig. 7, shown in Figure 8, the top margin of uneven piece 2 axial cross sections parallels with the base, side parallel with the center line of uneven piece 2 and respectively with top margin and base chamfering; As Fig. 9, shown in Figure 10, uneven piece 2 axial cross sections are trapezoidal, and top margin parallels with the base, difference rounding between trapezoidal dual-side and the base.The structure of uneven piece 2 is to select according to the size and the position of amount of unbalance.
Principle of work of the present utility model is:
The main Ro=M ω that vows of the inertial force system of rigid rotator
2Rc makes U=Mrc, is called amount of unbalance, thereby has got rid of the influence of rotational speed omega, can show the size of inertial force so better, and is also commonly used in the engineering | and U|=mr determines the size of correction mass m and correction radius r.M in the formula is the quality of uneven piece, and ω is a wheel speed, and rc is the distance of uneven piece to the impeller rotation center, and Ro is moment of inertia (source of amount of unbalance).
Detect and show the size and location of impeller amount of unbalance by equilibrator; Pass through to convert by the size and location of the detected impeller amount of unbalance of equilibrator, draw the structure of the uneven piece that needs loading, manually carry out counterweight, and uneven piece is fixed, make rotor reach the balance quality requirement with screw in the relevant position of impeller; Carry out secondary amount of unbalance school then and survey, as satisfy the requirement of impeller balance quality, can carry out other operation; As not meeting the demands, then need the uneven piece of installing is adjusted, carry out the school by aforesaid operations again after the adjustment and survey, up to satisfying the requirement of impeller balance quality.
Uneven block of material of the present utility model is a stainless steel, can adapt to relatively rugged environment such as oil resistant, withstand voltage, heatproof, good processability.
Claims (7)
1. the transient equilibrium structure of a compressor impeller is characterized in that: the uneven piece (2) that is used for the amount of unbalance of balance impeller own is installed on impeller (1).
2. by the transient equilibrium structure of the described compressor impeller of claim 1, it is characterized in that: the back side of described impeller (1) has installing port (3), by screw uneven piece (2) is installed in installing port (3).
3. by the transient equilibrium structure of claim 1 or 2 described compressor impellers, it is characterized in that: the centre of described uneven piece (2) has threaded hole (4).
4. by the transient equilibrium structure of claim 1 or 2 described compressor impellers, it is characterized in that: the top margin of described uneven piece (2) axial cross section parallels with the base, and side is two crossing straight lines.
5. by the transient equilibrium structure of the described compressor impeller of claim 4, it is characterized in that: the angle between described two crossing straight lines is the obtuse angle.
6. by the transient equilibrium structure of claim 1 or 2 described compressor impellers, it is characterized in that: the top margin of described uneven piece (2) axial cross section parallels with the base, side parallel with the center line of uneven piece (2) and respectively with top margin and base chamfering.
7. by the transient equilibrium structure of claim 1 or 2 described compressor impellers, it is characterized in that: described uneven piece (2) axial cross section is trapezoidal, and top margin parallels with the base, difference rounding between trapezoidal dual-side and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206923898U CN201945420U (en) | 2010-12-30 | 2010-12-30 | Dynamic balancing structure of compressor impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206923898U CN201945420U (en) | 2010-12-30 | 2010-12-30 | Dynamic balancing structure of compressor impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945420U true CN201945420U (en) | 2011-08-24 |
Family
ID=44472759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206923898U Expired - Lifetime CN201945420U (en) | 2010-12-30 | 2010-12-30 | Dynamic balancing structure of compressor impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945420U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592080A (en) * | 2013-10-29 | 2014-02-19 | 哈尔滨汽轮机厂有限责任公司 | Counter balance for turbine high-speed dynamic balance |
| CN106321444A (en) * | 2016-10-24 | 2017-01-11 | 安徽科达埃尔压缩机有限公司 | High-precision dynamic balance device used for roots blower impeller |
| CN108136518A (en) * | 2015-10-07 | 2018-06-08 | 大陆汽车有限公司 | Method for balance mark to be introduced into the compressor wheels of turbocharger and the turbocharger including having the compressor wheels of balance mark |
| CN113623235A (en) * | 2021-09-23 | 2021-11-09 | 浙江浙能绍兴滨海热电有限责任公司 | Clean water pump and water pressure adjusting method applying same |
-
2010
- 2010-12-30 CN CN2010206923898U patent/CN201945420U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592080A (en) * | 2013-10-29 | 2014-02-19 | 哈尔滨汽轮机厂有限责任公司 | Counter balance for turbine high-speed dynamic balance |
| CN108136518A (en) * | 2015-10-07 | 2018-06-08 | 大陆汽车有限公司 | Method for balance mark to be introduced into the compressor wheels of turbocharger and the turbocharger including having the compressor wheels of balance mark |
| US11135661B2 (en) | 2015-10-07 | 2021-10-05 | Vitesco Technologies GmbH | Method for introducing a balancing mark into the compressor wheel of a turbocharger, and turbocharger comprising a compressor wheel which has a balancing mark |
| CN106321444A (en) * | 2016-10-24 | 2017-01-11 | 安徽科达埃尔压缩机有限公司 | High-precision dynamic balance device used for roots blower impeller |
| CN113623235A (en) * | 2021-09-23 | 2021-11-09 | 浙江浙能绍兴滨海热电有限责任公司 | Clean water pump and water pressure adjusting method applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHENYANG BLOWER WORKS GROUP AUTOMATIC CONTROL SYSTEM ENGINEERING CO., LTD. Assignor: Shenyang blower group, Limited by Share Ltd|Shenyang turbo machinery, Limited by Share Ltd Contract record no.: 2012210000034 Denomination of utility model: Dynamic balancing structure of compressor impeller Granted publication date: 20110824 License type: Exclusive License Record date: 20120305 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
|
| CX01 | Expiry of patent term |