CN204458538U - A kind of gas turbine blower structure of improvement - Google Patents

A kind of gas turbine blower structure of improvement Download PDF

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Publication number
CN204458538U
CN204458538U CN201520002013.2U CN201520002013U CN204458538U CN 204458538 U CN204458538 U CN 204458538U CN 201520002013 U CN201520002013 U CN 201520002013U CN 204458538 U CN204458538 U CN 204458538U
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CN
China
Prior art keywords
groove
guide vane
rotational guide
back blades
shrinkage pool
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 - Fee Related
Application number
CN201520002013.2U
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Chinese (zh)
Inventor
孙琦
刘洋
胡煜翔
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.)
North China Electric Power University
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North China Electric Power University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by North China Electric Power University filed Critical North China Electric Power University
Priority to CN201520002013.2U priority Critical patent/CN204458538U/en
Application granted granted Critical
Publication of CN204458538U publication Critical patent/CN204458538U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of gas turbine blower structure of improvement, comprise rotational guide vane, rotational guide vane arranged outside has lining, pad and disc spring is respectively arranged with in the both sides of lining, gear drive is socketed in rotational guide vane, disc spring is between gear drive and lining, the windward side of described rotational guide vane is provided with the first groove, first groove is hinged with back blades, back blades top is provided with the second groove, block is connected with in second groove, block is connected with disc spring by spring body, the bottom surface of the first groove is provided with frustoconic shape shrinkage pool, the internal diameter of frustoconic shape shrinkage pool from top to bottom diminishes gradually, the bottom of frustoconic shape shrinkage pool is connected with elliposoidal cavity, elliposoidal cavity bottom is connected with capillary vessel, capillary vessel is connected with the lee face of rotational guide vane.The utility model can improve the deficiencies in the prior art, improves the ability that adjustable guide vane suppresses surge.

Description

A kind of gas turbine blower structure of improvement
Technical field
The utility model relates to a kind of power plant equipment, especially a kind of gas turbine blower structure of improvement.
Background technique
Adjustable guide vane has and plays at the startup of unit, stopping process the effect preventing surge.Chinese utility model patent CN 203879784 U discloses a kind of Rotatable guide blade arrangement of gas turbine blower, expands the turned scope of adjustable guide vane.But in actual use, only by regulating the angle of adjustable guide vane to prevent surge, Adjustment precision requires high, therefore regulation time is long, easily occurs adjusting the problem that angle is not enough or adjustment angle is excessive.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of gas turbine blower structure of improvement, can solve the deficiencies in the prior art, improves the ability that adjustable guide vane suppresses surge.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of gas turbine blower structure of improvement, comprise rotational guide vane, rotational guide vane arranged outside has lining, pad and disc spring is respectively arranged with in the both sides of lining, gear drive is socketed in rotational guide vane, disc spring is between gear drive and lining, the windward side of described rotational guide vane is provided with the first groove, first groove is by the windward side smooth connection of cambered surface and rotational guide vane, first groove is hinged with back blades, back blades top is provided with the second groove, block is connected with in second groove, block and the second groove fit tightly, when rotational guide vane is positioned at initial position, the end face of block flushes with the end face of the second groove, block is connected with disc spring by spring body, the bottom surface of the first groove is provided with frustoconic shape shrinkage pool, the internal diameter of frustoconic shape shrinkage pool from top to bottom diminishes gradually, the bottom of frustoconic shape shrinkage pool is connected with elliposoidal cavity, elliposoidal cavity bottom is connected with capillary vessel, capillary vessel is connected with the lee face of rotational guide vane.
As preferably, the edge of described back blades is provided with rubber weather strip, and rubber weather strip and the first groove are sealed and matched.
As preferably, the 3rd groove is provided with in described first groove, be provided with the spring sheet raised up in 3rd groove, the 3rd groove is at frustoconic shape shrinkage pool and between back blades and rotational guide vane hinged place, and spring sheet and back blades mutually extrude and seal and contact.
The beneficial effect adopting technique scheme to bring is: the utility model has installed back blades additional on the basis of original rotational guide vane, and back blades is arranged in the first groove, make it to have an impact to the aerodynamic structures of original rotational guide vane in an initial condition.When adjusting rotational guide vane angle of swing, producing surge if there is angular adjustment error, can there is the lateral separation flowing of off-axis in air-flow.Because block is connected with disc spring by spring body, so disc spring drives block to rotate by spring body when gear drive rotates, baffle plate is outwards rotated in the second groove, form a windshied part, there is the windshied part of lateral separation airflow function on baffle plate during surge, thus whole back blades is produced to the moment of rotating, back blades and rotational guide vane are separated, lateral separation air-flow enters in the gap of back blades and rotational guide vane, then by frustoconic shape shrinkage pool, elliposoidal cavity and capillary vessel flow to the lee face of rotational guide vane, thus reduce the lateral separation flowing of air-flow, fundamentally inhibit the generation of surge.The combination of frustoconic shape shrinkage pool, elliposoidal cavity and capillary vessel can reduce the turbulent condition of air-flow, make originally to flow to as horizontal separation bubble is forming a smooth air along axial flow through after rotational guide vane, avoid and still there is lateral separation kinetic energy after separation bubble enters rotational guide vane leeward side and the problem that continues to produce surge.Rubber weather strip can ensure to there is not air gap when the original state do not rotated between back blades and rotational guide vane.Spring sheet can stop that the air-flow that do not enter frustoconic shape shrinkage pool flows out from back blades and the hinged gap of rotational guide vane, the angle that spring sheet is opened along with back blades carries out elastic strain, when back blades is completely closed, spring sheet is compressed in the 3rd groove, can not affect the normally closed of back blades.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the utility model embodiment.
Fig. 2 is the structural drawing that in the utility model embodiment, rotational guide vane coordinates with back blades.
In figure: 1, rotational guide vane; 2, lining; 3, pad; 4, disc spring; 5, gear drive; 6, the first groove; 7, cambered surface; 8, back blades; 9, the second groove; 10, block; 11, spring body; 12, frustoconic shape shrinkage pool; 13, elliposoidal cavity; 14, capillary vessel; 15, rubber weather strip; 16, the 3rd groove; 17, spring sheet; 18, helical guide groove.
Embodiment
The standardized element used in the utility model all can be commercially, special-shaped part all can carry out customized according to specification with the record of accompanying drawing, the concrete Placement of each part all adopts the conventional means such as bolt, rivet, welding, stickup ripe in prior art, is not described in detail in this.
With reference to Fig. 1-2, the utility model embodiment comprises rotational guide vane 1, rotational guide vane 1 arranged outside has lining 2, pad 3 and disc spring 4 is respectively arranged with in the both sides of lining 2, gear drive 5 is socketed in rotational guide vane 1, disc spring 4 is between gear drive 5 and lining 2, the windward side of described rotational guide vane 1 is provided with the first groove 6, first groove 6 is by the windward side smooth connection of cambered surface 7 with rotational guide vane 1, first groove 6 is hinged with back blades 8, back blades 8 top is provided with the second groove 9, block 10 is connected with in second groove 9, block 10 and the second groove 9 fit tightly, when rotational guide vane 1 is positioned at initial position, the end face of block 10 flushes with the end face of the second groove 9, block 10 is connected with disc spring 4 by spring body 11, the bottom surface of the first groove 6 is provided with frustoconic shape shrinkage pool 12, the internal diameter of frustoconic shape shrinkage pool 12 from top to bottom diminishes gradually, the bottom of frustoconic shape shrinkage pool 12 is connected with elliposoidal cavity 13, capillary vessel 14 is connected with bottom elliposoidal cavity 13, capillary vessel 14 is connected with the lee face of rotational guide vane 1.When adjusting rotational guide vane 1 angle of swing, producing surge if there is angular adjustment error, can there is the lateral separation flowing of off-axis in air-flow.Because block 10 is connected with disc spring 4 by spring body 11, so disc spring 4 drives block 10 to rotate by spring body 11 when gear drive 5 rotates, baffle plate 10 is outwards rotated in the second groove 9, form a windshied part, there is the windshied part of lateral separation airflow function on baffle plate 10 during surge, thus whole back blades 8 is produced to the moment of rotating, back blades 8 and rotational guide vane 1 are separated, lateral separation air-flow enters back blades 8 with the gap of rotational guide vane 1, then by frustoconic shape shrinkage pool 12, elliposoidal cavity 13 and capillary vessel 14 flow to the lee face of rotational guide vane 1, thus reduce the lateral separation flowing of air-flow, fundamentally inhibit the generation of surge.The combination of frustoconic shape shrinkage pool 12, elliposoidal cavity 13 and capillary vessel 14 can reduce the turbulent condition of air-flow, make originally to flow to as horizontal separation bubble is forming a smooth air along axial flow through after rotational guide vane 1, avoid and still there is lateral separation kinetic energy after separation bubble enters rotational guide vane 1 leeward side and the problem that continues to produce surge.The edge of back blades 8 is provided with rubber weather strip 15, and rubber weather strip 15 and the first groove 6 are sealed and matched, and rubber weather strip 15 can ensure to there is not air gap when the original state do not rotated between back blades 8 and rotational guide vane 1.The 3rd groove 16 is provided with in first groove 6, the spring sheet 17 raised up is provided with in 3rd groove 16, 3rd groove 16 is at frustoconic shape shrinkage pool 12 and between back blades 8 and rotational guide vane 1 hinged place, spring sheet 17 and back blades 8 mutually extrude and seal and contact, spring sheet 17 can stop that the air-flow that do not enter frustoconic shape shrinkage pool 12 flows out from the hinged gap of back blades 8 and rotational guide vane 1, the angle that spring sheet 17 is opened along with back blades 8 carries out elastic strain, when back blades 8 is completely closed, spring sheet 17 is compressed in the 3rd groove 16, the normally closed of back blades 8 can not be affected.
In addition, the sidewall of frustoconic shape shrinkage pool 12 and the angle of vertical direction are 23 °, and the shell of elliposoidal cavity 13 meets following ellipsoid equation: 3x 2+ 7y 2+ 4z 2=1, the vertical direction length ratio of frustoconic shape shrinkage pool 12, elliposoidal cavity 13 and capillary vessel 14 is 3:2:5, and capillary vessel 14 internal diameter and its vertical direction length ratio are 1:15.The inwall of capillary vessel 14 is also provided with helical guide groove 18.Above preferred compositions can make the air-flow entering rotational guide vane 1 obtain best smooth-going combing, and before air-flow flows out, helical guide groove 18 can make air-flow produce suitable helical flow, improves the axial flow Directivity after air-flow outflow.
Wherein, the utility model improves according on the basis of the patent documentation quoted in background technique, be similar to the prior art categories such as the concrete cooperating structure of gear drive 5 and rotational guide vane 1 and butterfly spring 4 to have carried out in the cited patent disclosing fully, be not described in detail in this.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (3)

1. the gas turbine blower structure improved, comprise rotational guide vane (1), rotational guide vane (1) arranged outside has lining (2), pad (3) and disc spring (4) is respectively arranged with in the both sides of lining (2), gear drive (5) is socketed in rotational guide vane (1), disc spring (4) is positioned between gear drive (5) and lining (2), it is characterized in that: the windward side of described rotational guide vane (1) is provided with the first groove (6), first groove (6) is by the windward side smooth connection of cambered surface (7) with rotational guide vane (1), first groove (6) is hinged with back blades (8), back blades (8) top is provided with the second groove (9), block (10) is connected with in second groove (9), block (10) and the second groove (9) fit tightly, when rotational guide vane (1) is positioned at initial position, the end face of block (10) flushes with the end face of the second groove (9), block (10) is connected with disc spring (4) by spring body (11), the bottom surface of the first groove (6) is provided with frustoconic shape shrinkage pool (12), the internal diameter of frustoconic shape shrinkage pool (12) from top to bottom diminishes gradually, the bottom of frustoconic shape shrinkage pool (12) is connected with elliposoidal cavity (13), elliposoidal cavity (13) bottom is connected with capillary vessel (14), capillary vessel (14) is connected with the lee face of rotational guide vane (1).
2. the gas turbine blower structure of improvement according to claim 1, is characterized in that: the edge of described back blades (8) is provided with rubber weather strip (15), and rubber weather strip (15) and the first groove (6) are sealed and matched.
3. the gas turbine blower structure of improvement according to claim 1, it is characterized in that: in described first groove (6), be provided with the 3rd groove (16), the spring sheet (17) raised up is provided with in 3rd groove (16), 3rd groove (16) is positioned at frustoconic shape shrinkage pool (12) and between back blades (8) and rotational guide vane (1) hinged place, spring sheet (17) and back blades (8) mutually extrude and seal and contact.
CN201520002013.2U 2015-01-05 2015-01-05 A kind of gas turbine blower structure of improvement Expired - Fee Related CN204458538U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520002013.2U CN204458538U (en) 2015-01-05 2015-01-05 A kind of gas turbine blower structure of improvement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520002013.2U CN204458538U (en) 2015-01-05 2015-01-05 A kind of gas turbine blower structure of improvement

Publications (1)

Publication Number Publication Date
CN204458538U true CN204458538U (en) 2015-07-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105281308A (en) * 2015-12-01 2016-01-27 国家电网公司 Intelligent magnetizing inrush current inhibiting device for vacuum circuit breakers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105281308A (en) * 2015-12-01 2016-01-27 国家电网公司 Intelligent magnetizing inrush current inhibiting device for vacuum circuit breakers
CN105281308B (en) * 2015-12-01 2018-03-09 国家电网公司 A kind of intelligent vacuum circuit breaker transformer inrush current suppression apparatus

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150708

Termination date: 20160105