CN208935001U - The mechanical seal structure of steam power plant's low pressure heating pump - Google Patents
The mechanical seal structure of steam power plant's low pressure heating pump Download PDFInfo
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- CN208935001U CN208935001U CN201821342509.4U CN201821342509U CN208935001U CN 208935001 U CN208935001 U CN 208935001U CN 201821342509 U CN201821342509 U CN 201821342509U CN 208935001 U CN208935001 U CN 208935001U
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- Prior art keywords
- ring
- axle sleeve
- low pressure
- pressure heating
- mechanical seal
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Abstract
The utility model discloses a kind of mechanical seal structures of steam power plant's low pressure heating pump, including being coupled axle sleeve on the pump shaft of low pressure heating pump, stationary ring is coupled on axle sleeve, affixed the carbide ring in the groove of stationary ring end face setting, the axis hole of stationary ring is matched with axle sleeve, tubular spring base is set on the outer wall of the axle sleeve other end, the spring being uniformly arranged in spring base is matched with rotating ring outer end face, the inner face of rotating ring is matched with carbide ring, annular groove is set on the external cylindrical surface of stationary ring, the cooling water connector of seal receptacle setting is connected to by duct with annular groove.The utility model is structurally reasonable, has not only improved the use parameter of mechanical seal, but also can rapidly radiate, and improves service life, and saves time, material and the cost of labor of checking maintenance.
Description
Technical field
The utility model belongs to the improvement of the mechanical seal structure of steam power plant's low pressure heating pump, and especially a kind of steam power plant is low
Press the mechanical seal structure of heating pump.
Background technique
Often sealing effect is undesirable for existing machinery sealing.Cooling effect inside machine envelope is bad, and part is caused to cross heat waste
It is bad, influence leakproofness.Lack enough protective devices outside main shaft, once transmission medium leakage easily corrodes main shaft.
Utility model content
The purpose of this utility model is to provide a kind of mechanical seal structure of steam power plant's low pressure heating pump, structure is closed
Reason, had not only improved the use parameter of mechanical seal, but also can rapidly radiate, had improved service life, and saved time, the material of checking maintenance
Material and cost of labor.
Purpose of the utility model is realized as follows: a kind of mechanical seal structure of steam power plant's low pressure heating pump, including
It is coupled axle sleeve on the pump shaft of low pressure heating pump, stationary ring is coupled on axle sleeve, the setting in stationary ring end face
Affixed carbide ring, the axis hole of stationary ring are matched with axle sleeve in groove, and tubular is arranged on the outer wall of the axle sleeve other end
Spring base, the spring being uniformly arranged in spring base are matched with rotating ring outer end face, inner face and the carbide ring phase of rotating ring
Cooperation, is arranged annular groove on the external cylindrical surface of stationary ring, and the cooling water connector of seal receptacle setting is connected by duct and annular groove
It is logical.
The utility model can bear higher sealing cavity pressure, and stationary ring is carried out special designing, in stationary ring outer circle
One of annular groove of middle position vehicle can be such that the contact area of cooling water and stationary ring increases many in this way, greatly improve cold
But effect.Material Matting selects leaching antimony graphite to hard alloy, and for rotating ring using leaching antimony graphite, stationary ring, which uses, inlays hard conjunction
Gold, had not only improved the use parameter of mechanical seal, but also can rapidly radiate, and after being installed in equipment, fault-free use reaches
By 1 year, time, material and the cost of labor of checking maintenance have greatly been saved.
The utility model is structurally reasonable, has not only improved the use parameter of mechanical seal, but also realizes and rapidly radiate, and improves
Service life, has saved time, material and the cost of labor of checking maintenance.
Detailed description of the invention
The utility model is further described below in conjunction with attached drawing, Fig. 1 is the signal of the utility model front view structure
Figure.
Specific embodiment
A kind of mechanical seal structure of steam power plant's low pressure heating pump, as shown in Figure 1, including the pump shaft in low pressure heating pump
On be coupled axle sleeve 1, stationary ring 2 is coupled on axle sleeve 1, affixed the hard in the groove of 2 end face of stationary ring setting
The axis hole of alloy hoop 4, stationary ring 2 is matched with axle sleeve 1, tubular spring base 5 is arranged on the outer wall of 1 other end of axle sleeve, in bullet
The spring 6 being uniformly arranged in spring abutment 5 is matched with 3 outer end face of rotating ring, and the inner face of rotating ring 3 is matched with carbide ring 4,
Annular groove 7 is set on the external cylindrical surface of stationary ring 2, and the cooling water connector 8 that seal receptacle 9 is arranged is connected to by duct with annular groove 7.
Rotating ring 3 is made of leaching antimony graphite.It is installed with respectively by the seal groove being arranged on 9 hole wall of seal receptacle of 7 two sides of annular groove
Sealing ring 10.
Claims (3)
1. a kind of mechanical seal structure of steam power plant's low pressure heating pump, including being coupled on the pump shaft of low pressure heating pump
Axle sleeve (1), it is affixed in the groove of stationary ring (2) end face setting it is characterized in that: be coupled stationary ring (2) on axle sleeve (1)
The axis hole of carbide ring (4), stationary ring (2) is matched with axle sleeve (1), and tubular is arranged on the outer wall of axle sleeve (1) other end
Spring base (5), the spring (6) being uniformly arranged in spring base (5) are matched with rotating ring (3) outer end face, the inner face of rotating ring (3)
It matches, is arranged on the external cylindrical surface of stationary ring (2) annular groove (7) with carbide ring (4), seal receptacle (9) is arranged cold
But water interface (8) is connected to by duct with annular groove (7).
2. the mechanical seal structure of steam power plant's low pressure heating pump according to claim 1, it is characterized in that: rotating ring (3) is by soaking
Antimony graphite is constituted.
3. the mechanical seal structure of steam power plant's low pressure heating pump according to claim 1, it is characterized in that: being located at annular groove
(7) sealing ring (10) are installed with by the seal groove being arranged respectively on seal receptacle (9) hole wall of two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342509.4U CN208935001U (en) | 2018-08-20 | 2018-08-20 | The mechanical seal structure of steam power plant's low pressure heating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821342509.4U CN208935001U (en) | 2018-08-20 | 2018-08-20 | The mechanical seal structure of steam power plant's low pressure heating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208935001U true CN208935001U (en) | 2019-06-04 |
Family
ID=66718230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821342509.4U Active CN208935001U (en) | 2018-08-20 | 2018-08-20 | The mechanical seal structure of steam power plant's low pressure heating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208935001U (en) |
-
2018
- 2018-08-20 CN CN201821342509.4U patent/CN208935001U/en active Active
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