CN104696524A - Mechanical sealing structure of hot water pump - Google Patents
Mechanical sealing structure of hot water pump Download PDFInfo
- Publication number
- CN104696524A CN104696524A CN201510076365.7A CN201510076365A CN104696524A CN 104696524 A CN104696524 A CN 104696524A CN 201510076365 A CN201510076365 A CN 201510076365A CN 104696524 A CN104696524 A CN 104696524A
- Authority
- CN
- China
- Prior art keywords
- ring
- hot water
- water pump
- sealing
- rotary packing
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a mechanical sealing structure of a hot water pump. The mechanical sealing structure comprises a static sealing ring and a dynamic sealing ring component, wherein the static sealing ring is mounted on the cavity of the hot water pump; the dynamic sealing ring component is fixedly mounted on the pump shaft of the hot water pump; the dynamic sealing ring component comprises a push ring, a dynamic ring seat and a dynamic sealing ring; the push ring is mounted at one end of the dynamic ring seat in an embedded manner and is hermetically matched with the dynamic ring seat; an embedding groove is formed in the end surface of the other end of the dynamic ring seat; one end of the dynamic sealing ring is mounted in the embedding groove; the dynamic sealing ring is hermetically matched with an outer groove wall through a dynamic sealing ring; the other end of the dynamic sealing ring is hermetically matched with the other end surface of the static sealing ring; the distance between the end part of an inner groove wall and the other end surface of the static sealing ring is set to be L1; the axial length of the outer groove wall is set to be L2; L1 is smaller than or equal to L2. The sealing structure can reduce the deformation of the dynamic sealing ring, thereby improving the sealing performances of the dynamic sealing ring and the static sealing ring and guaranteeing the sealing performance of the hot water pump in high pressure environment.
Description
Technical field
The present invention relates to a kind of mechanical seal structure, refer 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.
Summary of the invention
Technical problem to be solved by this invention 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, technological scheme of the present invention 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 invention 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 present invention is further described.
Fig. 1 is the structure sectional view of the embodiment of the present invention;
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 5; 6. static sealing ring II 6; 7. static sealing ring III 7,8. dynamic seal ring; 9. rotary packing ring 9.
Embodiment
Below by specific embodiment, the present invention is described in further detail.
Be determine with the distance near pump spindle center axis inside and outside described in the present invention, 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 |
|---|---|---|---|
| CN201510076365.7A CN104696524A (en) | 2015-02-13 | 2015-02-13 | Mechanical sealing structure of hot water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076365.7A CN104696524A (en) | 2015-02-13 | 2015-02-13 | Mechanical sealing structure of hot water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104696524A true CN104696524A (en) | 2015-06-10 |
Family
ID=53343937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510076365.7A Pending CN104696524A (en) | 2015-02-13 | 2015-02-13 | Mechanical sealing structure of hot water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696524A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506495A (en) * | 2018-05-30 | 2018-09-07 | 北京化工大学 | Sealing ring, seal assembly and mechanical equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073500U (en) * | 1990-08-24 | 1991-03-20 | 沈庞录 | Mechanical seal for submersible pump |
| CN2575340Y (en) * | 2002-10-21 | 2003-09-24 | 宜兴市工程塑料设备厂 | Vanes of centrifugal pressure fan and centrifugal pressure fan with the same vanes |
| CN2818934Y (en) * | 2005-08-17 | 2006-09-20 | 艾志(南京)机械工业技术有限公司 | Bearing protecting sealer by magnetic force |
| CN201057165Y (en) * | 2007-06-29 | 2008-05-07 | 宜兴市宙斯泵业有限公司 | Internally mounted mechanical seal for slurry pump |
| CN201273297Y (en) * | 2008-10-15 | 2009-07-15 | 兴化市苏中泵业制造有限公司 | Dry grinding-proof mechanical sealing device |
| CN202500814U (en) * | 2012-03-20 | 2012-10-24 | 宁波伏尔肯机械密封件制造有限公司 | Double-end-face mechanical sealing device for pump |
| CN203363163U (en) * | 2013-07-13 | 2013-12-25 | 福建南电股份有限公司 | Contact type main shaft sealing structure of water turbine |
| CN103470772A (en) * | 2013-09-26 | 2013-12-25 | 四川日机密封件股份有限公司 | High-speed high-pressure mechanical seal device |
| CN203770201U (en) * | 2013-12-26 | 2014-08-13 | 东莞市华汇精密机械有限公司 | Mechanical sealing device capable of bearing high pressure |
| CN204459161U (en) * | 2015-02-13 | 2015-07-08 | 江苏科奥流体科技有限公司 | A kind of hot water pump mechanical seal structure |
-
2015
- 2015-02-13 CN CN201510076365.7A patent/CN104696524A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073500U (en) * | 1990-08-24 | 1991-03-20 | 沈庞录 | Mechanical seal for submersible pump |
| CN2575340Y (en) * | 2002-10-21 | 2003-09-24 | 宜兴市工程塑料设备厂 | Vanes of centrifugal pressure fan and centrifugal pressure fan with the same vanes |
| CN2818934Y (en) * | 2005-08-17 | 2006-09-20 | 艾志(南京)机械工业技术有限公司 | Bearing protecting sealer by magnetic force |
| CN201057165Y (en) * | 2007-06-29 | 2008-05-07 | 宜兴市宙斯泵业有限公司 | Internally mounted mechanical seal for slurry pump |
| CN201273297Y (en) * | 2008-10-15 | 2009-07-15 | 兴化市苏中泵业制造有限公司 | Dry grinding-proof mechanical sealing device |
| CN202500814U (en) * | 2012-03-20 | 2012-10-24 | 宁波伏尔肯机械密封件制造有限公司 | Double-end-face mechanical sealing device for pump |
| CN203363163U (en) * | 2013-07-13 | 2013-12-25 | 福建南电股份有限公司 | Contact type main shaft sealing structure of water turbine |
| CN103470772A (en) * | 2013-09-26 | 2013-12-25 | 四川日机密封件股份有限公司 | High-speed high-pressure mechanical seal device |
| CN203770201U (en) * | 2013-12-26 | 2014-08-13 | 东莞市华汇精密机械有限公司 | Mechanical sealing device capable of bearing high pressure |
| CN204459161U (en) * | 2015-02-13 | 2015-07-08 | 江苏科奥流体科技有限公司 | A kind of hot water pump mechanical seal structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506495A (en) * | 2018-05-30 | 2018-09-07 | 北京化工大学 | Sealing ring, seal assembly and mechanical equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4009644A (en) | Rotary actuator | |
| MX2010002541A (en) | Pressure balanced shaft seal assembly. | |
| IN2014CH02008A (en) | ||
| CN104755817B (en) | Piston ring | |
| CN104011395A (en) | Pump power unit | |
| JP2020530545A5 (en) | ||
| CN104132143B (en) | Silicon carbide mechanical seal device | |
| CN204459161U (en) | A kind of hot water pump mechanical seal structure | |
| CN104696524A (en) | Mechanical sealing structure of hot water pump | |
| CN104040182B (en) | Pump assembly | |
| TW201638505A (en) | Mechanical seal device, double seal device, and double mechanical seal device | |
| CN105526360B (en) | Mechanical sealing mechanism | |
| CN208237078U (en) | conical surface adaptive mechanical sealing device | |
| US11041504B2 (en) | Rotor of centrifugal compressor, centrifugal compressor, and method for manufacturing rotor of centrifugal compressor | |
| CN205824181U (en) | Axostylus axostyle floating seal device | |
| CN107781446A (en) | The universal automatic compensation valve seat snap ring pressure plate type valve of Bidirectional pressure | |
| CN105526355A (en) | Device used for mechanical sealing | |
| JP5985288B2 (en) | Rotating shaft seal | |
| CN205678144U (en) | A kind of large-diameter butterfly valve | |
| CN202301155U (en) | Oil seal device for pump | |
| CN105526354B (en) | Mechanically-sealing apparatus | |
| CN105526356B (en) | Mechanical seal structure | |
| CN108488384A (en) | conical surface adaptive mechanical sealing device | |
| CN206338237U (en) | A kind of anti-dry grinding auto pump water seal | |
| CN205298554U (en) | Mechanical seal structure suitable for lysine drying chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |