CN207945037U - Tubular turbine main shaft seal - Google Patents
Tubular turbine main shaft seal Download PDFInfo
- Publication number
- CN207945037U CN207945037U CN201820281535.4U CN201820281535U CN207945037U CN 207945037 U CN207945037 U CN 207945037U CN 201820281535 U CN201820281535 U CN 201820281535U CN 207945037 U CN207945037 U CN 207945037U
- Authority
- CN
- China
- Prior art keywords
- ring
- seal
- sealing
- air inlet
- shaped
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of tubular turbine main shaft seal, it is made of working seal and maintenance sealing, working seal left end is contacted with pressure ring right end, the pressure ring and seal operation sealing are located in the inner cavity between seal and wear sleeve, and the inner wall of I-shaped ring group adult is slidably matched with together with by multiple-sealed ring, and a clamping screw is equipped on the annular slab of pressure ring left end；Maintenance sealing includes inflation shroud ring and air inlet pipe, and wherein inflation shroud ring is loop configuration, and heart-shaped mounting hole is docked by seal and seal receptacle；Radial air inlet hole inner end of the inner end of inflation shroud ring in wear sleeve, the inflation shroud ring outer end face seal, the outer of radial air inlet hole are terminated with air inlet pipe.By multiple-sealed ring, the I-shaped ring with together with forms the working seal of the utility model, and wearability is good, not easy damaged wear sleeve, and good airproof performance；Maintenance sealing is using the inflation shroud ring of annular, and cross section is solid heart-shaped structure, and good seal performance manufacturing cost is low.
Description
Technical field
The utility model belongs to hydraulic turbine field, is related to a kind of tubular turbine main shaft seal.
Background technology
The main shaft seal of tubular turbine is generally the sealed combination sealing of working seal+maintenance, current work
Sealing uses flexible sealing ring, and overhauls sealing and need dedicated mold manufacturing.The defect of existing structure is：Flexible sealing ring
It wears no resistance, easy damaged wear sleeve, and poor sealing；Meanwhile it overhauling sealing and dedicated mold manufacturing is needed to increase significantly again
Manufacturing cost.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of good seal performance, low-cost tubular water
Turbine main shaft seal.
The technical solution of the utility model is as follows：A kind of tubular turbine main shaft seal, the main shaft seal are combination
Sealing, and be made of working seal (A) and maintenance sealing (B), it is characterised in that：Axis of the sealing ring (3) along seal (1)
To being arranged side by side, and I-shaped ring (4) is located between sealing ring (3)；Working seal (A) left end is contacted with pressure ring (5) right end,
The pressure ring and seal operation sealing (A) are located in the inner cavity between seal (1) and wear sleeve (2), and by multiple-sealed ring
(3) and together the inner wall of I-shaped ring (4) group adult (1) is slidably matched, and a pressure is equipped on the annular slab of pressure ring (5) left end
The tail portion of tight screw rod (6), the clamping screw is fixed with seal (1), and the head of clamping screw (6) is set with holddown spring (7)
After be connected with clamp nut (8)；The maintenance sealing (B) includes inflation shroud ring (9) and air inlet pipe (11), wherein inflation shroud ring
(9) it is loop configuration, cross section is solid heart-shaped structure, which is mounted in heart-shaped mounting hole, heart peace
It is docked by seal (1) and seal receptacle (10) in dress hole；Close to wear sleeve (2), this is filled for the inner end of the inflation shroud ring (9)
Inner end radial air inlet hole (1a) on gas shroud outer end face seal (1), radial air inlet hole (1a) it is outer be terminated with it is described into
Tracheae (11).
By multiple-sealed ring (3) and together, I-shaped ring (4) forms the working seal (A) of this case, and wearability is good, not easy damaged
Wear sleeve, and good airproof performance；Using the inflation shroud ring (9) of annular, cross section is solid heart-shaped structure for maintenance sealing (B),
Good seal performance, inflation shroud ring are sealing executive components, and with rubber through die forming, manufacturing cost is low.Meanwhile working seal
(A) it is worked in a manner of alternative with maintenance sealing (B), and air inlet pipe (11) is inflated to when radial air inlet hole (1a) interior gas injection
The inner end of shroud (9) is contacted with wear sleeve (2) periphery, to realize sealing.
Preferably, the sealing ring (3) is four, the both sides of the I-shaped ring (4) are respectively equipped with two seals ring
(3), and sealing ring (3) is polytetrafluoroethylene (PTFE) impregnation of carbon fibers packing sealing ring.
Advantageous effect：By multiple-sealed ring, the I-shaped ring with together with forms the working seal of the utility model, and wearability is good, no
Easy damaged wear sleeve, and good airproof performance；Using the inflation shroud ring of annular, cross section is solid heart-shaped structure for maintenance sealing,
Good seal performance, inflation shroud ring are sealing executive components, and with rubber through die forming, manufacturing cost is low.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial enlarged view of the parts I in Fig. 1.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples：
As illustrated in fig. 1 and 2, a kind of tubular turbine main shaft seal, the main shaft seal are combination sealing, and by working
Seal A and maintenance sealing B compositions.Working seal A is located in the inner cavity between seal 1 and wear sleeve 2, and by multiple-sealed ring
3 with together with I-shaped ring 4 form, wherein sealing ring 3 along seal 1 axial direction be arranged side by side, and I-shaped ring 4 be located at sealing ring 3 it
Between.Working seal A left ends are contacted with 5 right end of pressure ring, and the inner wall of the pressure ring and seal 1 is slidably matched, and the ring of 5 left end of pressure ring
A clamping screw 6 is equipped on shape plate, tail portion and the seal 1 of the clamping screw are fixed, and the head of clamping screw 6 is set with
Clamp nut 8 is connected with after holddown spring 7.Maintenance sealing B includes inflation shroud ring 9 and air inlet pipe 11, and wherein inflation shroud ring 9 is ring
Shape structure, cross section are solid heart-shaped structure, which is mounted in heart-shaped mounting hole, and the heart mounting hole is by close
Envelope body 1 and seal receptacle 10 dock.The inner end of inflation shroud ring 9 is close to wear sleeve 2, the inflation shroud ring outer end face seal 1
On the radial air inlet hole inner ends 1a, the outer of radial air inlet hole 1a be terminated with air inlet pipe 11.Sealing ring 3 is four, the two of I-shaped ring 4
Side is respectively equipped with two seals ring 3, and sealing ring 3 is polytetrafluoroethylene (PTFE) impregnation of carbon fibers packing sealing ring.
The above is only the preferred embodiment of the utility model only, is not limitation with the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (2)
1. a kind of tubular turbine main shaft seal, which is combination sealing, and by working seal
(A) it is formed with maintenance sealing (B), it is characterised in that：The working seal (A) be located at seal (1) and wear sleeve (2) it
Between inner cavity in, and I-shaped ring (4) forms by multiple-sealed ring (3) and together, wherein axis of the sealing ring (3) along seal (1)
To being arranged side by side, and I-shaped ring (4) is located between sealing ring (3)；Working seal (A) left end is contacted with pressure ring (5) right end,
The pressure ring and the inner wall of seal (1) are slidably matched, and a clamping screw (6) is equipped on the annular slab of pressure ring (5) left end,
The tail portion of the clamping screw is fixed with seal (1), and the head of clamping screw (6) is connected with pressure after being set with holddown spring (7)
Tight nut (8)；The maintenance sealing (B) includes inflation shroud ring (9) and air inlet pipe (11), and wherein inflation shroud ring (9) is ring junction
Structure, cross section are solid heart-shaped structure, which is mounted in heart-shaped mounting hole, and the heart mounting hole is by sealing
Body (1) and seal receptacle (10) dock；Rectify outside wear sleeve (2), the inflation shroud ring inner end of the inflation shroud ring (9)
To inner end radial air inlet hole (1a) on seal (1), the outer of radial air inlet hole (1a) is terminated with the air inlet pipe (11).
2. tubular turbine main shaft seal according to claim 1, it is characterised in that：The sealing ring (3) is four
The both sides in road, the I-shaped ring (4) are respectively equipped with two seals ring (3), and sealing ring (3) is polytetrafluoroethylene (PTFE) impregnation of carbon fibers
Packing sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820281535.4U CN207945037U (en) | 2018-02-27 | 2018-02-27 | Tubular turbine main shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820281535.4U CN207945037U (en) | 2018-02-27 | 2018-02-27 | Tubular turbine main shaft seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945037U true CN207945037U (en) | 2018-10-09 |
Family
ID=63700348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820281535.4U Expired - Fee Related CN207945037U (en) | 2018-02-27 | 2018-02-27 | Tubular turbine main shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207945037U (en) |
-
2018
- 2018-02-27 CN CN201820281535.4U patent/CN207945037U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 Termination date: 20190227 |