CN204459161U - A kind of hot water pump mechanical seal structure - Google Patents
A kind of hot water pump mechanical seal structure Download PDFInfo
- Publication number
- CN204459161U CN204459161U CN201520104835.1U CN201520104835U CN204459161U CN 204459161 U CN204459161 U CN 204459161U CN 201520104835 U CN201520104835 U CN 201520104835U CN 204459161 U CN204459161 U CN 204459161U
- Authority
- CN
- China
- Prior art keywords
- rotary packing
- packing ring
- ring
- hot water
- water pump
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000012856 packing Methods 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 230000004323 axial length Effects 0.000 claims abstract description 5
- 230000003068 static effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of hot water pump mechanical seal structure, comprise stationary seal ring and rotary packing ring assembly, stationary seal ring is installed on the cavity of hot water pump, rotary packing ring assembly is fixedly installed on the pump shaft of hot water pump, this rotary packing ring assembly comprises throw-out collar, rotating seat and rotary packing ring, throw-out collar embedding is installed on one end of rotating seat and is sealed and matched with it, the end face of the other end of rotating seat is provided with caulking groove, one end of rotary packing ring is installed in caulking groove, be sealed and matched by dynamic seal ring between this rotary packing ring and external groove sidevall, the other end of this rotary packing ring and the other end of stationary seal ring are sealed and matched, the distance set between the end of this internal groove side wall and the other end of this stationary seal ring is L1, the axial length of setting external groove sidevall is L2, and L1≤L2.Sealing structure can reduce the distortion of rotary packing ring, thus improves rotary packing ring and stationary seal ring, guarantees the sealability of hot water pump in hyperbaric environment.
Description
Technical field
The utility model relates to a kind of mechanical seal structure, refers to a kind of hot water pump mechanical seal structure especially.
Background technique
Mechanical seal requirement between the pump shaft and cavity of hot water pump is strict, sealing configuration comprises rotary packing ring and stationary seal ring, stationary seal ring is installed on cavity, rotary packing ring is installed on pump shaft, the end face seal of rotary packing ring and stationary seal ring, sealed environment so due to hot water pump is complicated, the temperature of medium can cause the distortion of movable sealing structure, make mechanical seal position also can be out of shape under high pressure in hot water pump, easily there is inclination angle in the rubbing surface between final dynamic and static seal ring, thus causes sealing effect to reduce.
Model utility content
Technical problem to be solved in the utility model is: provide a kind of hot water pump mechanical seal structure, sealing structure can reduce the distortion of rotary packing ring, thus improves rotary packing ring and stationary seal ring, guarantees the sealability of hot water pump in hyperbaric environment.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of hot water pump mechanical seal structure, comprise stationary seal ring and rotary packing ring assembly, the cavity that one end of described stationary seal ring is installed on hot water pump is sealed and matched with this cavity, described rotary packing ring assembly is fixedly installed on the pump shaft of hot water pump, this rotary packing ring assembly comprises throw-out collar, rotating seat and rotary packing ring, described throw-out collar embedding is installed on one end of rotating seat and is sealed and matched with rotating seat, the end face of the other end of described rotating seat is provided with caulking groove, this caulking groove is surrounded by the external groove sidevall away from pump shaft and the internal groove side wall near pump shaft, one end of described rotary packing ring is installed in caulking groove, this rotary packing ring is supported by internal groove side wall, be sealed and matched by dynamic seal ring between this rotary packing ring and external groove sidevall, the other end of this rotary packing ring and the other end of stationary seal ring are sealed and matched, the distance set between the end of this internal groove side wall and the other end of this stationary seal ring is L1, the axial length of setting external groove sidevall is L2, and L1≤L2.
As the preferred scheme of one, the axle section center of this dynamic seal ring to caulking groove bottom land between distance be L3, this L1=L3.
As the preferred scheme of one, described stationary seal ring comprises a sealing drum portion and a sealing flange portion, sealing flange part is arranged at the end in sealing drum portion, sealing cylinder portion to be installed in cavity and to be sealed and matched with cavity, and the thickness of sealing flange part is the 1/4-1/6 of the length of whole stationary seal ring.
As the preferred scheme of one, the periphery in sealing cylinder portion is provided with two closure gasket grooves, is provided with static sealing ring, is also provided with static sealing ring between sealing flange part and cavity end face in each closure gasket groove.
As the preferred scheme of one, described throw-out collar comprises throw-out collar cylinder portion and throw-out collar flange part, and this throw-out collar cylinder portion embeds in the endoporus of described rotating seat, the end face of this throw-out collar flange part and the end contact of rotating seat.
After have employed technique scheme, effect of the present utility model is: because this rotary packing ring assembly comprises throw-out collar, rotating seat and rotary packing ring, described throw-out collar embedding is installed on one end of rotating seat and is sealed and matched with rotating seat, the end face of the other end of described rotating seat is provided with caulking groove, this caulking groove is surrounded by the external groove sidevall away from pump shaft and the internal groove side wall near pump shaft, one end of described rotary packing ring is installed in caulking groove, this rotary packing ring is supported by internal groove side wall, be sealed and matched by dynamic seal ring between this rotary packing ring and external groove sidevall, the other end of this rotary packing ring and the other end of stationary seal ring are sealed and matched, the distance set between the end of this internal groove side wall and the other end of this stationary seal ring is L1, the axial length of setting external groove sidevall is L2, and L1≤L2, therefore, the end face of external groove sidevall to stationary seal ring end face between scope in, the outer circumferential face of rotary packing ring is exposed in high-pressure medium, therefore, rotary packing ring receive high-pressure medium to internal pressure, and simultaneously internal groove side wall can to applying an outside counteractive support power between rotary packing ring, because L1 is less than or equal to L2, therefore, the inside pressure that support force and medium produce can be cancelled out each other, rotary packing ring is stressed close to balance, therefore rotary packing ring end face reduces to amount of deformation, sealability improves, guarantee the mechanical sealing performance of hot water pump.
Again due to this dynamic seal ring axle section center to caulking groove bottom land between distance be L3, this L1=L3, like this, rotary packing ring stressed more balanced, amount of deformation is minimum.
Again because described stationary seal ring comprises a sealing drum portion and a sealing flange portion, sealing flange part is arranged at the end in sealing drum portion, sealing cylinder portion to be installed in cavity and to be sealed and matched with cavity, and the thickness of sealing flange part is the 1/4-1/6 of the length of whole stationary seal ring.The thickness of the outer circumferential face of the flange part of this stationary seal ring is the force surface of high-pressure medium, this thickness is relatively little, and therefore, the pressure of the high-pressure medium that stationary seal ring receives is relatively little, the face deformation amount of stationary seal ring is little, improves the sealability of rotary packing ring and stationary seal ring further.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structure sectional view of the utility model embodiment;
In accompanying drawing: 1. throw-out collar 1; 2. rotating seat 2; 3. dynamic seal ring 3 in; 4. stationary seal ring 4; 5. static sealing ring I; 6. static sealing ring II; 7. static sealing ring III, 8. dynamic seal ring; 9. rotary packing ring 9.
Embodiment
Below by specific embodiment, the utility model is described in further detail.
Be determine with the distance near pump spindle center axis inside and outside described in the utility model, be inner side near the side of central axis, the side away from central axis is outside.
As shown in Figure 1, a kind of hot water pump mechanical seal structure, comprise stationary seal ring 4 and rotary packing ring 9 assembly, the cavity that one end of described stationary seal ring 4 is installed on hot water pump is sealed and matched with this cavity, this cavity is provided with the through hole facilitating pump shaft to run through, described stationary seal ring 4 comprises a sealing drum portion and a sealing flange portion, sealing flange part is arranged at the end in sealing drum portion, be sealed and matched with cavity in the through hole that sealing cylinder portion is installed on cavity, the thickness of sealing flange part is the 1/4-1/6 of the length of whole stationary seal ring 4.The periphery in sealing cylinder portion is provided with two closure gasket grooves, in each closure gasket groove, static sealing ring is installed, static sealing ring II 6, static sealing ring III 7 is referred to as convenience of describing, also static sealing ring I 5 is provided with between sealing flange part and cavity end face, the material of this static sealing ring II 6, static sealing ring III 7 is fluorine rubber, and the material of static sealing ring I 5 is teflon; Described rotary packing ring 9 assembly is fixedly installed on the pump shaft of hot water pump, this rotary packing ring 9 assembly comprises throw-out collar 1, rotating seat 2 and rotary packing ring 9, described throw-out collar 1 embedding is installed on one end of rotating seat 2 and is sealed and matched with rotating seat 2, described throw-out collar 1 comprises throw-out collar 1 portion and throw-out collar 1 flange part, this throw-out collar 1 portion embeds in the endoporus of described rotating seat 2, the end face of this throw-out collar 1 flange part and the end contact of rotating seat 2.Interior dynamic seal ring 3 is provided with between the end in this throw-out collar 1 portion and the endoporus step of rotating seat 2; , the material of this interior dynamic seal ring 3 is teflon.The end face of the other end of described rotating seat 2 is provided with caulking groove, this caulking groove is surrounded by the external groove sidevall away from pump shaft and the internal groove side wall near pump shaft, one end of described rotary packing ring 9 is installed in caulking groove, this rotary packing ring 9 is supported by internal groove side wall, be sealed and matched by dynamic seal ring 8 between this rotary packing ring 9 and external groove sidevall, the other end of this rotary packing ring 9 of the center of dynamic seal ring 8 and the other end of stationary seal ring 4 are sealed and matched, the distance set between the end of this internal groove side wall and the other end of this stationary seal ring 4 is L1, the axial length of setting external groove sidevall is L2, and L1≤L2.Wherein, preferably, the axle section center of this dynamic seal ring 8 to caulking groove bottom land between distance be L3, this L1=L3.The axle section that this place describes referred to that the section of dynamic seal ring 8 central axis formed.
The above embodiment is only the description to the preferred embodiment of the present invention; not as limiting the scope of the invention; design on the basis of spirit not departing from the present invention; the various distortion make technical solution of the present invention and transformation, all should fall in protection domain that claims of the present invention determine.
Claims (5)
1. a hot water pump mechanical seal structure, comprise stationary seal ring and rotary packing ring assembly, the cavity that one end of described stationary seal ring is installed on hot water pump is sealed and matched with this cavity, described rotary packing ring assembly is fixedly installed on the pump shaft of hot water pump, it is characterized in that: this rotary packing ring assembly comprises throw-out collar, rotating seat and rotary packing ring, described throw-out collar embedding is installed on one end of rotating seat and is sealed and matched with rotating seat, the end face of the other end of described rotating seat is provided with caulking groove, this caulking groove is surrounded by the external groove sidevall away from pump shaft and the internal groove side wall near pump shaft, one end of described rotary packing ring is installed in caulking groove, this rotary packing ring is supported by internal groove side wall, be sealed and matched by dynamic seal ring between this rotary packing ring and external groove sidevall, the other end of this rotary packing ring and the other end of stationary seal ring are sealed and matched, the distance set between the end of this internal groove side wall and the other end of this stationary seal ring is L1, the axial length of setting external groove sidevall is L2, and L1≤L2.
2. a kind of hot water pump mechanical seal structure as claimed in claim 1, is characterized in that: the axle section center of this dynamic seal ring to caulking groove bottom land between distance be L3, this L1=L3.
3. a kind of hot water pump mechanical seal structure as claimed in claim 2, it is characterized in that: described stationary seal ring comprises a sealing drum portion and a sealing flange portion, sealing flange part is arranged at the end in sealing drum portion, sealing cylinder portion to be installed in cavity and to be sealed and matched with cavity, and the thickness of sealing flange part is the 1/4-1/6 of the length of whole stationary seal ring.
4. a kind of hot water pump mechanical seal structure as claimed in claim 3, it is characterized in that: the periphery in sealing cylinder portion is provided with two closure gasket grooves, in each closure gasket groove, static sealing ring is installed, between sealing flange part and cavity end face, is also provided with static sealing ring.
5. a kind of hot water pump mechanical seal structure as claimed in claim 4, is characterized in that: described throw-out collar comprises throw-out collar cylinder portion and throw-out collar flange part, this throw-out collar cylinder portion embeds in the endoporus of described rotating seat, the end face of this throw-out collar flange part and the end contact of rotating seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104835.1U CN204459161U (en) | 2015-02-13 | 2015-02-13 | A kind of hot water pump mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104835.1U CN204459161U (en) | 2015-02-13 | 2015-02-13 | A kind of hot water pump mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459161U true CN204459161U (en) | 2015-07-08 |
Family
ID=53666047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520104835.1U Expired - Fee Related CN204459161U (en) | 2015-02-13 | 2015-02-13 | A kind of hot water pump mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204459161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696524A (en) * | 2015-02-13 | 2015-06-10 | 江苏科奥流体科技有限公司 | Mechanical sealing structure of hot water pump |
-
2015
- 2015-02-13 CN CN201520104835.1U patent/CN204459161U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696524A (en) * | 2015-02-13 | 2015-06-10 | 江苏科奥流体科技有限公司 | Mechanical sealing structure of hot water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |