CN108443171A - A kind of low temperature recycling cyclic acid pump shaft seal structure - Google Patents
A kind of low temperature recycling cyclic acid pump shaft seal structure Download PDFInfo
- Publication number
- CN108443171A CN108443171A CN201810204437.5A CN201810204437A CN108443171A CN 108443171 A CN108443171 A CN 108443171A CN 201810204437 A CN201810204437 A CN 201810204437A CN 108443171 A CN108443171 A CN 108443171A
- Authority
- CN
- China
- Prior art keywords
- ring
- pump shaft
- labyrinth seal
- box body
- stuffing box
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of low temperature to recycle cyclic acid pump shaft seal structure, including transmission parts, seal member, rotor part and spout member, seal member includes gland, stuffing box body, oil ring, labyrinth seal ring, filler, lubricating grease, O-ring, three linked piece component and through type forced filling oil cup, the medial surface of stuffing box body is provided with labyrinth seal ring, and labyrinth seal ring is provided with O-ring with stuffing box body junction.Low temperature of the present invention recycles cyclic acid pump shaft seal structure, when flue gas reaches labyrinth seal ring, flue gas can be from two side leakage cigarette of labyrinth seal ring, but outside is sealed with O-ring, so that flue gas can only steam from interior survey, dry air is entered from snorkel, it is applied in combination with labyrinth seal ring using sealing gland ring, form dry gas seals, a lot of compression ring is formed in sealing gland ring and labyrinth seal ring, is prevented gas from emitting outward, SO3 gases can be prevented to steam outward by seal member, good seal performance uses stabilization.
Description
Technical field
The present invention relates to pump technical field under concentrated sulfuric acid solution, specially a kind of low temperature recycles cyclic acid pump shaft seal structure.
Background technology
It is presently used for the concentrated sulfuric acid submerged pump of low temperature retracting device, for axle envelope using based on mechanical seal, machinery is close
Envelope is divided into two kinds of specifications of domestic and external import.Because environment temperature used in mechanical seal is 220 DEG C, and the volatility of acid is special
It is not strong, SO3 gases are generated, the type of cooling of machine envelope can only be cooled down by air cooling and the material of itself.And domestic mechanical seal
It is unreliable to be mainly reflected in material, using it is unstable the shortcomings of, and external mechanical seal be mainly reflected in it is expensive, therefore
No matter domestic or external all less than optimal product is selected.
Invention content
The purpose of the present invention is to provide a kind of low temperature to recycle cyclic acid pump shaft seal structure, and SO3 gases can be prevented to emit outward
Gas, good seal performance solve the problems of the prior art using stabilization.
To achieve the above object, the present invention provides the following technical solutions：A kind of low temperature recycling cyclic acid pump shaft seal structure, packet
Transmission parts, seal member, rotor part and spout member are included, seal member is connected with below the transmission parts, it is described
Rotor part is connected with below seal member, a side end face of the rotor part is connected with spout member, the sealing
Part includes gland, stuffing box body, oil ring, labyrinth seal ring, filler, lubricating grease, O-ring, three linked piece component and through type
Forced filling oil cup is equipped with through type forced filling oil cup on the gland, and the gland is set on pump shaft, the pump shaft
Lateral surface be provided with stuffing box body, the lateral surface of the stuffing box body is connected with three linked piece component, the stuffing box body it is interior
Side is provided with labyrinth seal ring, and the labyrinth seal ring is provided with O-ring, the labyrinth seal ring with stuffing box body junction
Top be provided with oil ring, the oil ring is set on pump shaft, and the lateral surface of the pump shaft is additionally provided with filler, the filler
Lateral surface is equipped with lubricating grease.
Preferably, the stuffing box body passes through stud and nut bonding pad gland.
Preferably, the labyrinth seal ring is set on pump shaft.
Compared with prior art, beneficial effects of the present invention are as follows：
Low temperature of the present invention recycles cyclic acid pump shaft seal structure, and when generating SO3 gases in acid tank, flue gas reaches labyrinth seal ring
When, flue gas can be from two side leakage cigarette of labyrinth seal ring, but outside is sealed with O-ring so that flue gas cannot be from
Outside leaks, and can only steam from interior survey, dry air is entered from snorkel, being combined with labyrinth seal ring using sealing gland ring is made
With formation dry gas seals form a lot of compression ring in sealing gland ring and labyrinth seal ring, prevent gas from emitting outward, dry gas seals
During use, to ensure that the pressure of dry air is in relatively steady state always, prevent dry air from filler
Place leakage, an oil ring has been added between filler and filler, from stuffing box body from lubricating cup on inject lubricating grease, so that lubricating grease is arrived
Up to oil ring, by oil ring so that between filler and pump shaft formed one layer of oil sealing, this oil sealing not only act as lubrication, cooling work
With, and filler is made to remain oiliness, will not with pump shaft friction and lose oiliness, and this layer of oil film also functions to seal to obtain and make
With avoiding SO3 gases to emit pollution environment, sealing performance outward by seal member can prevent SO3 gases from steaming outward
It is good, use stabilization.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the A of the present invention to schematic diagram；
Fig. 3 is the seal member enlarged drawing of the present invention.
In figure：1 transmission parts, 2 seal members, 21 glands, 22 stuffing box bodies, 23 oil rings, 24 labyrinth seal rings, 25
Filler, 26 lubricating grease, 27 O-rings, 28 three linked piece components, 29 through type forced filling oil cups, 3 rotor parts, 4 spout members, 5 pumps
Axis, 6 studs, 7 nuts.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1-3, a kind of low temperature recycles cyclic acid pump shaft seal structure, including transmission parts 1, seal member 2, rotor
The lower section of component 3 and spout member 4, transmission parts 1 is connected with seal member 2, and the lower section of seal member 2 is connected with rotor part
3, a side end face of rotor part 3 is connected with spout member 4, and seal member 2 includes gland 21, stuffing box body 22, oil ring
23, labyrinth seal ring 24, filler 25, lubricating grease 26, O-ring 27, three linked piece component 28 and through type forced filling oil cup 29, when dense sulphur
The temperature of acid gradually rises to 220 DEG C, just will produce and also will produce certain pressure in SO3 gases and acid tank, keeps SO3 gases past
It emits outside, pollutes environment, which can prevent SO3 gases from steaming outward and then SO3 gases is avoided to emit pollution ring outward
Border is equipped with through type forced filling oil cup 29 on gland 21, and note lubricating grease 26 is also carried out in gland 21, makes oil ring 23
Three layers of filler 25 are lubricated above, and gland 21 only serves a fixed effect, prevents filler 25 from loosening outward, leads
Gas leakage, gland 21 is caused to be set on pump shaft 5, the lateral surface of pump shaft 5 is provided with stuffing box body 22, and stuffing box body 22 is logical
7 bonding pad gland 21 of stud 6 and nut is crossed, the lateral surface of stuffing box body 22 is connected with three linked piece component 28, stuffing box body 22
Medial surface be provided with labyrinth seal ring 24, labyrinth seal ring 24 is set on pump shaft 5, labyrinth seal ring 24 and stuffing box body 22
Junction is provided with O-ring 27, and when generating SO3 gases in acid tank, pump and other positions of slot are the i.e. static of sealing entirely, only
There is gap between pump shaft 5 and stuffing box body 22, because pump shaft 5 is movement, therefore flue gas will be in this gap
It emits outward, when flue gas reaches labyrinth seal ring 24, flue gas can be from 24 liang of side leakage cigarettes of labyrinth seal ring, but outside is
Through being sealed with O-ring 27 so that flue gas cannot be leaked from outside, can only be steamed from interior survey, therefore we are dry air
Enter from snorkel, be applied in combination using sealing gland ring and labyrinth seal ring 24, dry gas seals is formed, in sealing gland ring and labyrinth seal
A lot of compression ring is formed in ring 24, prevents SO3 gases from emitting outward, but precondition, which is external dry air pressure, to be had to
More than the pressure of SO3 gases in acid tank, the top of labyrinth seal ring 24 is provided with oil ring 23, and oil ring 23 is set on pump shaft 5, pump
The lateral surface of axis 5 is additionally provided with filler 25, and the lateral surface of filler 25 is equipped with lubricating grease 26, dry gas seals during use,
To ensure that the pressure of dry air is in relatively steady state always, prevent dry air from being leaked from filler 25, therefore fill out
Material 25 should play the leakage for preventing dry air, play sealing function when parking again, in use, filler 25 with
Pump shaft 5 will produce friction, have friction just to have abrasion, generate the temperature difference, therefore we have added one between filler 25 and filler 25
A oil ring 23, from stuffing box body 22 from lubricating cup on inject lubricating grease 26, make lubricating grease 26 reach oil ring 23, made by oil ring 23
Form one layer of oil sealing between filler 25 and pump shaft 5, this oil sealing not only act as lubrication, cooling effect, and make filler 25
It remains oiliness, will not rub with pump shaft 5 and lose oiliness, and this layer of oil film also functions to the effect that seals to obtain, such as dry gas air
It is leaked between filler 25 and pump shaft 5, the pressure reduction of dry air will be led to so that SO3 gas leakages are gone out.
When in acid tank generate SO3 gases when, pump and other positions of slot entirely be sealing it is i.e. static, only pump shaft 5 with fill out
There is gap between material letter body 22, because pump shaft 5 is movement, therefore flue gas will outward emit in this gap, work as cigarette
When gas reaches labyrinth seal ring 24, flue gas can be from 24 liang of side leakage cigarettes of labyrinth seal ring, but outside O-ring 27
Be sealed so that flue gas cannot be leaked from outside, can only from it is interior survey steam, therefore we dry air from snorkel into
Enter, be applied in combination using sealing gland ring and labyrinth seal ring 24, forms dry gas seals, formed with labyrinth seal ring 24 in sealing gland ring
A lot of compression ring prevents SO3 gases from emitting outward, but precondition, which is external dry air pressure, must be greater than in acid tank
The pressure of SO3 gases, dry gas seals during use, will ensure that always the pressure of dry air is in metastable shape
State prevents dry air from being leaked from filler 25, therefore filler 25 should play the leakage for preventing dry air, play stop again
Sealing function when vehicle, in use, filler 25 will produce friction with pump shaft 5, have friction just to have abrasion, generate temperature
Difference, therefore we have added an oil ring 23 between filler 25 and filler 25, from stuffing box body 22 from lubricating cup on inject lubrication
Fat 26 makes lubricating grease 26 reach oil ring 23, by oil ring 23 so that forming one layer of oil sealing between filler 25 and pump shaft 5, this oil
Envelope not only act as lubrication, cooling effect, and filler 25 is made to remain oiliness, will not rub with pump shaft 5 and lose oiliness,
And this layer of oil film also functions to the effect that seals to obtain, and if dry gas air leaks between filler 25 and pump shaft 5, will lead to dry air
Pressure reduction so that SO3 gas leakages are gone out, and note lubricating grease 26 is also carried out in gland 21, make three layers above of oil ring 23
Filler 25 is lubricated, and gland 21 only serves a fixed effect, prevents filler 25 from loosening outward, gas is caused to be let out
Leakage.
In summary：Low temperature of the present invention recycles cyclic acid pump shaft seal structure, when generating SO3 gases in acid tank, pump and slot
Other positions are the i.e. static of sealing entirely, only have gap between pump shaft 5 and stuffing box body 22, when flue gas reaches labyrinth
When sealing ring 24, flue gas can be from 24 liang of side leakage cigarettes of labyrinth seal ring, but outside is sealed with O-ring 27,
So that flue gas from being leaked from outside, can only steam, therefore we enter dry air from snorkel, use sealing gland from interior survey
Ring is applied in combination with labyrinth seal ring 24, forms dry gas seals, and a lot of compression ring is formed in sealing gland ring and labyrinth seal ring 24,
SO3 gases are prevented to emit outward, dry gas seals during use, will ensure that always the pressure of dry air is in and stablize relatively
State, prevent dry air from being leaked from filler 25, an oil ring 23 added between filler 25 and filler 25, from stuffing-box
Inject lubricating grease 26 on lubricating cup at body 22, lubricating grease 26 made to reach oil ring 23, by oil ring 23 so that filler 25 and pump shaft 5 it
Between form one layer of oil sealing, this oil sealing not only act as lubrication, cooling effect, and filler 25 is made to remain oiliness, will not
It rubs with pump shaft 5 and loses oiliness, and this layer of oil film also functions to the effect that seals to obtain, and SO3 gases can be prevented by seal member 2
It steams outward and then SO3 gases is avoided to emit pollution environment outward, good seal performance uses stabilization.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (3)
1. a kind of low temperature recycles cyclic acid pump shaft seal structure, including transmission parts（1）, seal member（2）, rotor part（3）With
Spout member（4）, it is characterised in that：The transmission parts（1）Lower section be connected with seal member（2）, the seal member（2）
Lower section be connected with rotor part（3）, the rotor part（3）A side end face be connected with spout member（4）, the sealing
Part（2）Including gland（21）, stuffing box body（22）, oil ring（23）, labyrinth seal ring（24）, filler（25）, lubricating grease
（26）, O-ring（27）, three linked piece component（28）With through type forced filling oil cup（29）, the gland（21）On be equipped with it is straight
General formula forced filling oil cup（29）, the gland（21）It is set in pump shaft（5）On, the pump shaft（5）Lateral surface be provided with and fill out
Expect letter body（22）, the stuffing box body（22）Lateral surface be connected with three linked piece component（28）, the stuffing box body（22）It is interior
Side is provided with labyrinth seal ring（24）, the labyrinth seal ring（24）With stuffing box body（22）Junction is provided with O-ring
（27）, the labyrinth seal ring（24）Top be provided with oil ring（23）, the oil ring（23）It is set in pump shaft（5）On, it is described
Pump shaft（5）Lateral surface be additionally provided with filler（25）, the filler（25）Lateral surface be equipped with lubricating grease（26）.
2. a kind of low temperature according to claim 1 recycles cyclic acid pump shaft seal structure, it is characterised in that：The stuffing box body
（22）Pass through stud（6）And nut（7）Bonding pad gland（21）.
3. a kind of low temperature according to claim 1 recycles cyclic acid pump shaft seal structure, it is characterised in that：The labyrinth seal
Ring（24）It is set in pump shaft（5）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810204437.5A CN108443171A (en) | 2018-03-13 | 2018-03-13 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810204437.5A CN108443171A (en) | 2018-03-13 | 2018-03-13 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443171A true CN108443171A (en) | 2018-08-24 |
Family
ID=63194841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810204437.5A Pending CN108443171A (en) | 2018-03-13 | 2018-03-13 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443171A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944944A (en) * | 2019-04-04 | 2019-06-28 | 华能国际电力股份有限公司营口电厂 | A kind of box-like packing seal structure of novel coal mill dynamic group |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370014Y (en) * | 1999-02-01 | 2000-03-22 | 漯河中贯冶金机械有限公司 | Floating seal device for valve rod of hot air valve |
| JP2010059868A (en) * | 2008-09-04 | 2010-03-18 | Ito Seisakusho:Kk | Sealing structure for shaft seal part of pump |
| CN201747658U (en) * | 2010-06-13 | 2011-02-16 | 陈登云 | Padding sealing device of desulfurization circulation pump |
| CN201858186U (en) * | 2010-10-19 | 2011-06-08 | 昆明嘉和科技股份有限公司 | Circulating acid pump for low-temperature thermal energy recovery system |
| CN202925043U (en) * | 2012-10-19 | 2013-05-08 | 中冶京诚工程技术有限公司 | Composite sealing device for mechanical stock rod winding drum box body for blast furnace |
| CN203532313U (en) * | 2013-09-25 | 2014-04-09 | 重庆通用工业(集团)有限责任公司 | Centrifugal fan double-seal structure |
| CN205744576U (en) * | 2016-05-11 | 2016-11-30 | 石家庄强大泵业集团有限责任公司 | A kind of water pump stuffing box assembly |
-
2018
- 2018-03-13 CN CN201810204437.5A patent/CN108443171A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370014Y (en) * | 1999-02-01 | 2000-03-22 | 漯河中贯冶金机械有限公司 | Floating seal device for valve rod of hot air valve |
| JP2010059868A (en) * | 2008-09-04 | 2010-03-18 | Ito Seisakusho:Kk | Sealing structure for shaft seal part of pump |
| CN201747658U (en) * | 2010-06-13 | 2011-02-16 | 陈登云 | Padding sealing device of desulfurization circulation pump |
| CN201858186U (en) * | 2010-10-19 | 2011-06-08 | 昆明嘉和科技股份有限公司 | Circulating acid pump for low-temperature thermal energy recovery system |
| CN202925043U (en) * | 2012-10-19 | 2013-05-08 | 中冶京诚工程技术有限公司 | Composite sealing device for mechanical stock rod winding drum box body for blast furnace |
| CN203532313U (en) * | 2013-09-25 | 2014-04-09 | 重庆通用工业(集团)有限责任公司 | Centrifugal fan double-seal structure |
| CN205744576U (en) * | 2016-05-11 | 2016-11-30 | 石家庄强大泵业集团有限责任公司 | A kind of water pump stuffing box assembly |
Non-Patent Citations (1)
| Title |
|---|
| 成大先主编: "《机械设计手册》", 31 December 2016 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944944A (en) * | 2019-04-04 | 2019-06-28 | 华能国际电力股份有限公司营口电厂 | A kind of box-like packing seal structure of novel coal mill dynamic group |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Yongjia Dong'ou County of Wenzhou City, Zhejiang province 325100 street Dong'ou Industrial Zone Applicant after: Zhejiang Xuanda Environmental Science and Technology Co., Ltd. Address before: Yongjia Dong'ou County of Wenzhou City, Zhejiang province 325100 street Dong'ou Industrial Zone Applicant before: ZHEJIANG XUANDA SPEICAL ALLOY FLOW EQUIPMENT CO., LTD. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180824 |
|
| RJ01 | Rejection of invention patent application after publication |