CN208221077U - A kind of pump cover sealing mechanism of hot oil pump - Google Patents
A kind of pump cover sealing mechanism of hot oil pump Download PDFInfo
- Publication number
- CN208221077U CN208221077U CN201820605924.8U CN201820605924U CN208221077U CN 208221077 U CN208221077 U CN 208221077U CN 201820605924 U CN201820605924 U CN 201820605924U CN 208221077 U CN208221077 U CN 208221077U
- Authority
- CN
- China
- Prior art keywords
- pump
- pump cover
- heat expansion
- hot oil
- pump housing
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 229920001971 elastomer Polymers 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002449 FKM Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
A kind of pump cover sealing mechanism of hot oil pump, including the stationary seal ring being set between the pump housing and pump cover, pump cover is sheathed in the axis hole of the pump housing, heat Expansion sealing circle is additionally provided between the pump housing and pump cover, it is bonded in the mounting groove that heat expansion loop is located on pump cover excircle and with the inner periphery of the axis hole of the pump housing, axial direction of the stationary seal ring with heat Expansion sealing circle along the pump housing is set gradually from inside to outside, heat Expansion sealing circle includes hollow elastic container and is set to the hollow interior heat inflating medium of elastic container, when hot oil pump work, stationary seal ring guarantees primary seals, heat Expansion sealing circle heat expansion enhancing sealing performance, labyrinth seal unit prevents the hot oil of high temperature from contacting heat Expansion sealing circle, triplicity makes pump cover have good sealing performance.
Description
Technical field
The utility model relates to the seal fitting of hot oil pump, the pump cover sealing mechanism of especially a kind of hot oil pump.
Background technique
Hot oil pump is a kind of circular-pump or mentions delivery pump as reheating, since its working environment is poor, and is in high temperature
Lower work, common sealing structure poor sealing effect, leads to hot oil pump oil leak, therefore, it is necessary to the density structure to hot oil pump into
Row replacement in time, replacement frequency is high, not only influences the work of hot oil pump, it is also necessary to which special messenger is maintained, and using effect is not
It is fully up to expectations.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of pump cover sealing mechanism of hot oil pump, leakproofness
Can be good, it solves hot oil pump Leakage, effectively reduces maintenance times, hot oil pump long service life.
The technical solution adopted in the utility model is:
A kind of pump cover sealing mechanism of hot oil pump, including the stationary seal ring being set between the pump housing and pump cover, key exists
In the pump cover is sheathed in the axis hole of the pump housing, and heat Expansion sealing circle, heat expansion are additionally provided between the pump housing and pump cover
It is bonded in the mounting groove that circle is located on pump cover excircle and with the inner periphery of pump housing axis hole, the stationary seal ring and heat expand
Sealing ring is set gradually from inside to outside along the axial direction of the pump housing, and the heat Expansion sealing circle includes hollow elastic container and setting
Heat inflating medium in elastic container is hollow.
The elastic container is the rubber jar of circular in cross-section or rectangle.
The heat inflating medium is water, oil or expanded graphite.
Labyrinth seal unit, the labyrinth seal list are provided between the stationary seal ring and heat Expansion sealing circle
Member includes one group of annular groove being set on pump housing inner wall.
The cross section of the annular groove is triangular in shape or rectangle.
The beneficial effects of the utility model are: stationary seal ring forms multi-sealed, enhancing pump cover with heat Expansion sealing circle
Leakproofness between the pump housing, pump housing heat absorption and end-on thermal expansion sealing ring carries out hot transmitting during hot oil pump work, meets
Sealing ring heat, internal heat inflating medium expanded by heating are thermally expanded, volume becomes larger, and making elastic container, deformation occurs, increases
With the magnitude of interference of pump cover, the pump housing, the leakproofness of pump cover is further enhanced, hot oil pump oil leak is effectively prevent, extends hot oil pump
The time effectively to work, while reducing maintenance times, and then reduce manual labor and cost of labor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1.
Fig. 2 is the structural schematic diagram of heat Expansion sealing circle in embodiment 1.
Fig. 3 is the structural schematic diagram of embodiment 2.
In attached drawing, 1 represents the pump housing, and 2 represent pump cover, and 3 represent stationary seal ring, and 4 represent heat Expansion sealing circle, and 41 represent bullet
Property shell, 42 represent heat inflating medium, and 5 represent labyrinth seal unit
Specific embodiment
A kind of pump cover sealing mechanism of hot oil pump, it is crucial including the stationary seal ring 3 being set between the pump housing 1 and pump cover 2
It is that the pump cover 2 is sheathed in the axis hole of the pump housing 1, heat Expansion sealing circle 4 is additionally provided between the pump housing 1 and pump cover 2, meets
Thermal expansion circle 4 is located in the mounting groove on 2 excircle of pump cover and is bonded with the inner periphery of 1 axis hole of the pump housing, the stationary seal ring 3
Axial direction with heat Expansion sealing circle 4 along the pump housing 1 is set gradually from inside to outside, and the heat Expansion sealing circle 4 includes hollow
Elastic container 41 and be set to elastic container 41 it is hollow in heat inflating medium 42.
Embodiment 1, as shown in Figure 1, elastic container 41 is the rubber jar of circular in cross-section, rubber jar has good elasticity
Elongation percentage, heat inflating medium 42 is one of water, oil or expanded graphite, and heat can expand, and select in the present embodiment
The material of heat inflating medium 42 is water, inexpensive and be easy to get.Stationary seal ring 3 is VITON fluorine element rubber seal or gold
Belong to rubber seal, high temperature resistant and good corrosion resistance.
Circular elastic container 41 is in the gap between the pump housing 1 and pump cover 2, and respectively with the inner periphery of 1 axis hole of the pump housing,
Pump cover 2 is contacted in line, and when hot oil pump is started to work, the pump housing 1 absorbs heat and transfers heat to elastic container 41, and heat is passing
It can be lost during passing, therefore the temperature of elastic container 41 is lower than the temperature of hot oil, the long service life of elastic container 41, elasticity
Water expanded by heating in shell 41 makes 41 volume of elastic container become larger, and the pump housing 1, pump cover 2 increase the extruding force of elastic container 41, elasticity
Deformation occurs for shell 41 to which elastic container 41 and the contact area of the pump housing 1, pump cover 2 become larger, and further enhances pump cover 2 and the pump housing 1
Between leakproofness.
It is provided with labyrinth seal unit 5 between stationary seal ring 3 and heat Expansion sealing circle 4, it is labyrinth seal unit 5, quiet close
Seal ring 3 and heat Expansion sealing circle 4 form multi-stage sealed unit, and the leakproofness of pump cover 2 is made to be significantly improved.Labyrinth seal list
Member 5 include one group of annular groove being set on 1 inner wall of the pump housing, even if stationary seal ring 3 fails, hot oil be leaked to the pump housing 1 and
In gap between pump cover 2, labyrinth type tortuous passageway is formed between annular groove, when hot oil flows in the channels, because liquid is viscous
Property and generate friction, make flows decrease, flow reduce, the leakproofness between pump cover 2 and the pump housing 1 can not only be further enhanced,
It can also stop hot oil contact resilient shell 41, prevent elastic container 41 from directly contacting the excessively high hot oil of big amount temperature and damaging.Labyrinth is close
The cross section for sealing the annular groove in unit 5 is triangular in shape, and due to the peak of annular groove composition, resistance is big, causes difference pressuring loss
Significantly, amount of leakage greatly reduces even No leakage amount, even if there is a small amount of hot oil leakage, generates thermal losses in flow process,
Temperature is also not enough to damage elastic container 41.
Embodiment 2 is substantially the same manner as Example 1, as shown in figure 3, the difference is that only annular in labyrinth seal unit 5
The cross section of slot is in rectangle, and convenient for production processing, the cross section of elastic container 41 is in rectangle, original state and the pump housing 1, pump cover 2
Contact is face contact, and contact area is big, and leakproofness is preferable.
The utility model relates to pump cover sealing mechanism in, stationary seal ring 3 guarantee primary seals, heat Expansion sealing circle 4
It more thermally expands, increases the power with pump cover 2, the contact area of the pump housing 1 and extruding, labyrinth seal unit 5 prevents the hot oil of high temperature from connecing
Heat Expansion sealing circle 4 is touched, the pump cover that triplicity makes has good sealing performance, hot oil is effectively prevent to reveal, and reduces dimension
Number is protected, guarantees that hot oil pump can work normally.
Claims (5)
1. a kind of pump cover sealing mechanism of hot oil pump, including the stationary seal ring (3) being set between the pump housing (1) and pump cover (2),
It is characterized by: the pump cover (2) is sheathed in the axis hole of the pump housing (1), chance is additionally provided between the pump housing (1) and pump cover (2)
Thermally expand sealing ring (4), heat Expansion sealing circle (4) be located at the mounting groove on pump cover (2) excircle Nei and with the pump housing (1) axis hole
Inner periphery fitting, the stationary seal ring (3) and heat Expansion sealing circle (4) along the pump housing (1) axial direction from inside to outside successively
Setting, the heat Expansion sealing circle (4) include hollow elastic container (41) and are set to the hollow interior chance of elastic container (41)
It thermally expands medium (42).
2. a kind of pump cover sealing mechanism of hot oil pump according to claim 1, it is characterised in that: the elastic container
It (41) is circular in cross-section or the rubber jar of rectangle.
3. a kind of pump cover sealing mechanism of hot oil pump according to claim 1, it is characterised in that: the heat expansion
Medium (42) is water, oil or expanded graphite.
4. a kind of pump cover sealing mechanism of hot oil pump according to claim 1, it is characterised in that: the stationary seal ring
(3) it is provided between heat Expansion sealing circle (4) labyrinth seal unit (5), the labyrinth seal unit (5) includes one group
The annular groove being set on the pump housing (1) inner wall.
5. a kind of pump cover sealing mechanism of hot oil pump according to claim 4, it is characterised in that: the annular groove
Cross section is triangular in shape or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605924.8U CN208221077U (en) | 2018-04-25 | 2018-04-25 | A kind of pump cover sealing mechanism of hot oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605924.8U CN208221077U (en) | 2018-04-25 | 2018-04-25 | A kind of pump cover sealing mechanism of hot oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221077U true CN208221077U (en) | 2018-12-11 |
Family
ID=64512749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820605924.8U Expired - Fee Related CN208221077U (en) | 2018-04-25 | 2018-04-25 | A kind of pump cover sealing mechanism of hot oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208221077U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570667A (en) * | 2020-12-08 | 2021-03-30 | 苏强 | Casting mold frame |
| CN113648158A (en) * | 2021-07-29 | 2021-11-16 | 中国科学院苏州生物医学工程技术研究所 | Virus-protective biological safety bin for living body fluorescence imaging instrument |
| CN113738874A (en) * | 2021-09-08 | 2021-12-03 | 北方联合电力有限责任公司包头第三热电厂 | Non-filling shaft sealing device |
-
2018
- 2018-04-25 CN CN201820605924.8U patent/CN208221077U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570667A (en) * | 2020-12-08 | 2021-03-30 | 苏强 | Casting mold frame |
| CN113648158A (en) * | 2021-07-29 | 2021-11-16 | 中国科学院苏州生物医学工程技术研究所 | Virus-protective biological safety bin for living body fluorescence imaging instrument |
| CN113648158B (en) * | 2021-07-29 | 2022-06-17 | 中国科学院苏州生物医学工程技术研究所 | Virus-protective biological safety bin for living body fluorescence imaging instrument |
| CN113738874A (en) * | 2021-09-08 | 2021-12-03 | 北方联合电力有限责任公司包头第三热电厂 | Non-filling shaft sealing device |
| CN113738874B (en) * | 2021-09-08 | 2024-01-05 | 北方联合电力有限责任公司包头第三热电厂 | Non-filling shaft sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208221077U (en) | A kind of pump cover sealing mechanism of hot oil pump | |
| CN109973658A (en) | A kind of self compensation intelligence lip packing | |
| CN112984248B (en) | Photovoltaic solar energy hot oil high temperature rotary joint subassembly | |
| CN203702642U (en) | Low-temperature large-shaft-diameter dry gas sealing device for centrifugal compressor | |
| CN101813034A (en) | Piston ring for optical controlled engine | |
| CN204329585U (en) | The carbon seal ring hermetically-sealed construction of rotary furnace | |
| CN208804370U (en) | A kind of rotary joint device of trandfer fluid medium | |
| CN208311463U (en) | A kind of Novel sealing ring | |
| CN204345142U (en) | A kind of heat conducting oil type swivel joint | |
| CN104006243B (en) | A kind of high-temperature high-speed rotary joint | |
| CN205244452U (en) | Initiative canned type disk seat | |
| CN211314547U (en) | Composite lip-shaped sealing structure of inner shaft seal of Roots pump | |
| CN203348559U (en) | All-metal magnetic fluid sealing device | |
| CN220850737U (en) | Anti-aging sealing ring | |
| CN210196028U (en) | Novel horizontal centrifugal pump transmission mechanism | |
| CN205896162U (en) | Hot mouth of thermometal self sealing type | |
| CN206129685U (en) | Oiling formula fan shaft seal device | |
| CN204140140U (en) | A kind of clamping ring structure obturaged for gas turbine | |
| CN205896258U (en) | Two way seal disk seat suitable for many temperature and operating mode | |
| CN205578738U (en) | Direct insulation construction of static formula compensation ring of mechanical seal float type | |
| CN204300500U (en) | A kind of thermosensitive filler sealed valve | |
| CN205401461U (en) | Shaft pivot bearing unloads die mould sealing washer | |
| CN106051156A (en) | Automatic seal type thermosensitive metal hot nozzle | |
| CN105782457B (en) | Mechanical seal float type state type compensates the direct insulation construction of ring | |
| CN210687376U (en) | Anti-leakage flange for ascending pipeline heat exchanger |
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: 20181211 |