CN115638107A - Mechanical sealing medium supply control device for Roots blower - Google Patents
Mechanical sealing medium supply control device for Roots blower Download PDFInfo
- Publication number
- CN115638107A CN115638107A CN202211358473.XA CN202211358473A CN115638107A CN 115638107 A CN115638107 A CN 115638107A CN 202211358473 A CN202211358473 A CN 202211358473A CN 115638107 A CN115638107 A CN 115638107A
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- China
- Prior art keywords
- storage box
- liquid storage
- sealing liquid
- control device
- supply control
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 84
- 239000007788 liquid Substances 0.000 claims description 70
- 238000005192 partition Methods 0.000 claims description 13
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses a mechanical sealing medium supply control device for a Roots blower, which comprises a shell and is characterized in that: the fan shaft is characterized in that a motor is installed on one side of the casing, an output shaft of the motor is connected with a fan shaft through a coupler, fixed blocks are correspondingly fixed on two sides of the fan shaft through bolts, elastic pieces are correspondingly fixed on two sides of the fixed blocks through bolts, a movable block is correspondingly and slidably connected to the outer wall of the fan shaft, a rotary separating block is connected to one side of the elastic piece, an end cover is fixed on one side of the casing through bolts, a sealing ring is embedded into one side of the movable block, which is in contact with the end cover, conveying screws are correspondingly arranged at two ends of the fan shaft, the rotating directions of the two conveying screws are opposite, one end of each conveying screw extends to a position flush with the inner wall of the end cover, and one end of the fan shaft extends out of the outer wall of the casing.
Description
Technical Field
The invention relates to the technical field of blowers, in particular to a mechanical sealing medium supply control device for a Roots blower.
Background
The roots blower is a blower which uses the engaging force of roots blades to pump medium, when in use, a roots pump is connected with an air source through a pipeline, and the roots pump is used as a suction pump to convey gas to a specific direction.
When transporting some poisonous gases, gaseous probably permeates out from the hookup location department of its drive shaft and casing and causes the environment to receive the pollution, generally adopts modes such as mechanical seal and static pressure seal in order to prevent to reveal, but mechanical seal can cause the loss of sealing washer along with the operation of pump leaf, and for a long time and can cause gaseous leakage, and the practicality is poor. Therefore, it is necessary to design a mechanical sealing medium supply control device for a roots blower with high practicability.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a mechanical sealing medium supply control device for a roots blower.
In order to solve the technical problems, the invention provides the following technical scheme: mechanical type sealing medium supplies controlling means for roots blower, including the casing, its characterized in that: the fan is characterized in that a motor is installed on one side of the casing, an output shaft of the motor is connected with a fan shaft through a coupler, fixed blocks are correspondingly fixed on two sides of the fan shaft through bolts, elastic pieces are correspondingly fixed on two sides of the fixed blocks through bolts, a movable block is correspondingly connected to the outer wall of the fan shaft in a sliding mode, one end of each elastic piece is connected with the corresponding movable block, a rotary separation block is connected to one side of each elastic piece, and an end cover is fixed on one side of the casing through bolts.
According to the technical scheme, the movable block is provided with the sealing ring in an embedded mode on one side, which is in contact with the end cover.
According to the technical scheme, the two ends of the fan shaft are correspondingly provided with the conveying screws, the rotating directions of the two conveying screws are opposite, one end of each conveying screw extends to a position flush with the inner wall of the end cover, one end of the fan shaft extends out of the outer wall of the shell, and the conveying screws are connected with an external constant-pressure liquid supply source.
According to the technical scheme, the two ends of the fan shaft are correspondingly sleeved with connecting sleeves, the two connecting sleeves are respectively fixed on one side of the end cover and one side of the casing through welding, through holes are formed in the connecting sleeves, one sides of the two connecting sleeves are respectively connected with the first sealing liquid storage box and the second sealing liquid storage box in a penetrating mode, the first sealing liquid storage box and the second sealing liquid storage box are fixed on the casing through welding, and one ends of the first sealing liquid storage box and the second sealing liquid storage box are jointly connected with the roots pump in a penetrating mode.
According to the technical scheme, one end of the fan shaft extends out of the outer wall of the shell, the roots pump blades are correspondingly installed inside the roots pump, and one end of the fan shaft is connected with the roots pump blades through welding.
According to the technical scheme, the first sealing liquid storage box and the second sealing liquid storage box are both connected with a partition plate in a sliding mode, a cavity on one side of the partition plate is communicated with the connecting sleeve, a cavity on the other side of the partition plate is communicated with the output end of the Roots pump, and the input end of the Roots pump is communicated with outside air.
According to the technical scheme, the connection ends of the first sealing liquid storage box and the second sealing liquid storage box and the roots pump are connected with a pressure stabilizing valve through a through connection mode, and the working pressure of the pressure stabilizing valve can be adjusted.
According to the technical scheme, springs are connected between the partition plate and the inner walls of the first sealing liquid storage box and the second sealing liquid storage box.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, two sealing modes are utilized, contact sealing is adopted when the fan stops running, and a liquid sealing mode is adopted when the fan runs, so that the damage caused by continuous running of the sealing ring is prevented, the sealing effect is good, and the leakage of gas and sealing medium cannot be caused.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic overall principle of the present invention;
FIG. 2 is a hydraulic schematic of the present invention;
FIG. 3 is a partial structure diagram of the housing of the present invention;
FIG. 4 is a schematic diagram of the operating status of the housing of the present invention;
in the figure: 1. a housing; 2. a motor; 3. a roots pump; 41. a first sealing liquid storage box; 42. a second sealing liquid storage box; 43. a partition plate; 44. a spring; 31. roots pump blades; 32. a pressure maintaining valve; 11. an end cap; 12. connecting sleeves; 21. a fan shaft; 211. conveying the screw; 51. a fixed block; 52. an elastic sheet; 53. a movable block; 54. the separating block is rotated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: mechanical sealing medium supply control device for roots blower, including casing 1, its characterized in that: the motor 2 is installed on one side of the machine shell 1, the output shaft of the motor 2 is connected with the fan shaft 21 through a coupler, the two sides of the fan shaft 21 are correspondingly fixed with fixed blocks 51 through bolts, the two sides of the fixed blocks 51 are correspondingly fixed with elastic pieces 52 through bolts, the outer wall of the fan shaft 21 is correspondingly connected with movable blocks 53 in a sliding manner, one ends of the elastic pieces 52 are connected with the movable blocks 53, one sides of the elastic pieces 52 are connected with rotary separating blocks 54, one side of the machine shell 1 is fixed with an end cover 11 through bolts, the motor 2 is started to drive the fan shaft 21 to rotate, so that the rotary separating blocks 54 are thrown outwards due to inertia, the bending degree of the elastic pieces 52 is increased, the movable blocks 53 slide towards the middle position of the fan shaft 21, the movable blocks 53 form mechanical contact seal with the inner wall surface of the machine shell 1 when the fan shaft 21 is static, and the mechanical seal does not play a role when the fan shaft 21 rotates, and damage caused by friction is prevented;
the movable block 53 is embedded with a sealing ring 531 at one side contacting with the end cover 11, the sealing ring 531 is used for improving the sealing effect between the movable block 53 and the end cover 11 when in static contact, and the sealing ring 531 is suspended when the movable block 53 is moved away during operation, so that abrasion cannot be caused;
the two ends of the fan shaft 21 are correspondingly provided with the transportation screws 211, the rotation directions of the two transportation screws 211 are opposite, one end of each transportation screw 211 extends to a position flush with the inner wall of the end cover 11, one end of the fan shaft 21 extends out of the outer wall of the shell 1, the transportation screws 211 are connected with an external constant-pressure liquid supply source, the transportation screws 211 can be driven to rotate when the fan shaft 21 runs, liquid is continuously introduced inwards at the moment to form a certain liquid pressure, the transportation screws 211 pump the liquid outwards, the pressures of the liquid and the transportation screws are mutually offset, and a gas-liquid contact surface with a constant position can be formed, so that the sealing effect of the extending position of the fan shaft 21 is improved;
the two ends of the fan shaft 21 are correspondingly sleeved with connecting sleeves 12, the two connecting sleeves 12 are respectively fixed on one side of the end cover 11 and one side of the machine shell 1 through welding, through holes are formed in the connecting sleeves 12, one sides of the two connecting sleeves 12 are respectively connected with a sealing liquid storage box I41 and a sealing liquid storage box II 42 in a penetrating mode, the sealing liquid storage box I41 and the sealing liquid storage box II 42 are fixed on the machine shell 1 through welding, one ends of the sealing liquid storage box I41 and one end of the sealing liquid storage box II 42 are jointly connected with the roots pump 3 in a penetrating mode, the fan shaft 21 is started, the roots pump 3 is started at the same time, sealing liquid is squeezed into the conveying screw 211 from the sealing liquid storage box I41 and the sealing liquid storage box II 42, meanwhile, the conveying screw 211 can convey the liquid upwards, a solid-liquid interface is formed between the sealing liquid storage box I41 and the sealing liquid storage box II, and gaps between the fan shaft 21 and the end cover 11 are filled with the sealing liquid, and a better sealing effect is achieved;
one end of the fan shaft 21 extends out of the outer wall of the shell 1, the Roots pump blade 31 is correspondingly installed inside the Roots pump 3, one end of the fan shaft 21 is connected with the Roots pump blade 31 in a welding mode, the Roots pump 3 can drive the Roots pump blade 31 to rotate, gas is pumped, upward pressure is formed in the sealing liquid storage box I41, synchronous operation is facilitated, liquid is not pumped when the fan shaft 21 stops rotating, contact sealing is recovered at the moment, and switching synchronism is high;
the inside of the first sealing liquid storage box 41 and the second sealing liquid storage box 42 are both connected with a partition plate 43 in a sliding manner, a chamber on one side of the partition plate 43 is communicated with the connecting sleeve 12, a chamber on the other side of the partition plate 43 is communicated with the output end of the Roots pump 3, the input end of the Roots pump 3 is communicated with the outside air, and the sealing liquid is separated from the chamber of the Roots pump 3 by the partition plate 43, so that the sealing liquid is further ensured not to leak from the other end and not to be communicated with the outside air;
the connection ends of the first sealing liquid storage box 41, the second sealing liquid storage box 42 and the roots pump 3 are connected with a pressure stabilizing valve 32 through a through connection mode, the working pressure of the pressure stabilizing valve 32 can be adjusted, when the roots pump blade 31 rotates, air in the sealing liquid storage box 41 and the second sealing liquid storage box 42 can be squeezed into the sealing liquid storage box 41 and the sealing liquid storage box 42, upward pressure is always kept in the sealing liquid storage box 41 and the sealing liquid storage box 42, the pressure is always stabilized at a certain constant value through the pressure stabilizing valve 32, the roots pump blade 31 can run continuously to avoid blocking due to the fact that gas cannot be pumped continuously, the position of a boundary between gas and liquid in the conveying screw 211 is adjusted through adjusting the working pressure of the pressure stabilizing valve 32, and leakage of the gas or permeation of the liquid into the machine shell 1 is prevented;
all be connected with spring 44 between the inner wall of baffle 43 and sealed liquid storage box 41 and sealed liquid storage box two 42, when beginning pump sending liquid, baffle 43 upward movement drives spring 44 and stretches, when stopping pump sending, because spring 44 reconversion for the cavity of baffle 43 below reduces, with sealed liquid follow transportation spiral 211 interior suction, thereby prevents that sealed liquid from running off.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Mechanical sealing medium supply control device for roots blower includes casing (1), its characterized in that: motor (2) are installed to one side of casing (1), the output shaft of motor (2) has fan axle (21) through the coupling joint, the both sides correspondence of fan axle (21) is fixed with fixed block (51) through the bolt, the both sides correspondence of fixed block (51) is fixed with flexible piece (52) through the bolt, the outer wall correspondence sliding connection of fan axle (21) has movable block (53), the one end of flexible piece (52) is connected with movable block (53), one side of flexible piece (52) is connected with rotatory separating block (54), one side of casing (1) is fixed with end cover (11) through the bolt.
2. The mechanical sealing medium supply control device for the roots blower according to claim 1, wherein: and a sealing ring (531) is embedded in one side of the movable block (53) which is in contact with the end cover (11).
3. The mechanical sealing medium supply control device for a roots blower according to claim 2, characterized in that: transportation spiral (211) have been seted up correspondingly to the both ends of fan axle (21), and the direction of rotation of two transportation spiral (211) is opposite, the one end of transportation spiral (211) extends to the position with end cover (11) inner wall parallel and level, the outer wall of casing (1) is extended to the one end of fan axle (21), transportation spiral (211) are connected with outside constant pressure liquid supply source.
4. The mechanical sealing medium supply control device for a roots blower according to claim 3, wherein: the two ends of the fan shaft (21) are correspondingly sleeved with connecting sleeves (12), the two connecting sleeves (12) are respectively fixed on one side of the end cover (11) and one side of the casing (1) through welding, through holes are formed in the connecting sleeves (12), one sides of the connecting sleeves (12) are respectively connected with a first sealing liquid storage box (41) and a second sealing liquid storage box (42) in a penetrating mode, the first sealing liquid storage box (41) and the second sealing liquid storage box (42) are fixed on the casing (1) through welding, and one ends of the first sealing liquid storage box (41) and the second sealing liquid storage box (42) are jointly connected with the roots pump (3) in a penetrating mode.
5. The mechanical sealing medium supply control device for a roots blower according to claim 4, wherein: one end of the fan shaft (21) extends out of the outer wall of the shell (1), the roots pump blades (31) are correspondingly installed inside the roots pump (3), and one end of the fan shaft (21) is connected with the roots pump blades (31) in a welded mode.
6. The mechanical sealing medium supply control device for the roots blower according to claim 5, wherein: the sealing liquid storage box I (41) and the sealing liquid storage box II (42) are both internally connected with a partition plate (43) through sliding, a cavity on one side of the partition plate (43) is communicated with the connecting sleeve (12), a cavity on the other side of the partition plate (43) is communicated with the output end of the roots pump (3), and the input end of the roots pump (3) is communicated with external air.
7. The mechanical sealing medium supply control device for a roots blower according to claim 6, wherein: the sealing liquid storage box I (41), the sealing liquid storage box II (42) and the connecting end of the roots pump (3) are connected with a pressure stabilizing valve (32) through a through way, and the working pressure of the pressure stabilizing valve (32) can be adjusted.
8. The mechanical sealing medium supply control device for a roots blower according to claim 7, wherein: springs (44) are connected between the partition plate (43) and the inner walls of the first sealing liquid storage box (41) and the second sealing liquid storage box (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211358473.XA CN115638107B (en) | 2022-11-01 | 2022-11-01 | Mechanical sealing medium supply control device for Roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211358473.XA CN115638107B (en) | 2022-11-01 | 2022-11-01 | Mechanical sealing medium supply control device for Roots blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115638107A true CN115638107A (en) | 2023-01-24 |
| CN115638107B CN115638107B (en) | 2024-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211358473.XA Active CN115638107B (en) | 2022-11-01 | 2022-11-01 | Mechanical sealing medium supply control device for Roots blower |
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| Country | Link |
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| CN (1) | CN115638107B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB820348A (en) * | 1957-02-12 | 1959-09-16 | Alsacienne Constr Meca | Means for ensuring fluid-tightness between two gases separated by a wall through which passes a rotating shaft |
| US4235572A (en) * | 1977-12-01 | 1980-11-25 | Balzers Aktiengesellschaft Fur Hochvakuumtechnik Und Dunne Schichten | Rotary displacement pump with intake through a first sealing slide |
| JPS58113660A (en) * | 1981-12-07 | 1983-07-06 | Kyodo Kikai Seisakusho:Kk | Shaft sealing device |
| DE19963170A1 (en) * | 1999-12-27 | 2001-06-28 | Leybold Vakuum Gmbh | Vacuum pump with shaft sealant |
| CN101135317A (en) * | 2006-08-29 | 2008-03-05 | 上海市化工装备研究所 | Built-in type parking sealing arrangement |
| CN201090446Y (en) * | 2007-06-15 | 2008-07-23 | 天津市联强机械密封技术有限公司 | Packaging type double end surface sealing device on Roots fan input shaft |
| CN203641007U (en) * | 2013-12-26 | 2014-06-11 | 九江中科鑫星新材料有限公司 | Shaft sealing device between Roots pump end cover shell and pump cavity |
| CN111692123A (en) * | 2020-05-09 | 2020-09-22 | 青海盐湖工业股份有限公司 | Double-end-face mechanical sealing device for pump |
| CN112032096A (en) * | 2018-12-31 | 2020-12-04 | 马瓯丽 | Leakage-proof sealing device for liquid pump |
-
2022
- 2022-11-01 CN CN202211358473.XA patent/CN115638107B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB820348A (en) * | 1957-02-12 | 1959-09-16 | Alsacienne Constr Meca | Means for ensuring fluid-tightness between two gases separated by a wall through which passes a rotating shaft |
| US4235572A (en) * | 1977-12-01 | 1980-11-25 | Balzers Aktiengesellschaft Fur Hochvakuumtechnik Und Dunne Schichten | Rotary displacement pump with intake through a first sealing slide |
| JPS58113660A (en) * | 1981-12-07 | 1983-07-06 | Kyodo Kikai Seisakusho:Kk | Shaft sealing device |
| DE19963170A1 (en) * | 1999-12-27 | 2001-06-28 | Leybold Vakuum Gmbh | Vacuum pump with shaft sealant |
| CN101135317A (en) * | 2006-08-29 | 2008-03-05 | 上海市化工装备研究所 | Built-in type parking sealing arrangement |
| CN201090446Y (en) * | 2007-06-15 | 2008-07-23 | 天津市联强机械密封技术有限公司 | Packaging type double end surface sealing device on Roots fan input shaft |
| CN203641007U (en) * | 2013-12-26 | 2014-06-11 | 九江中科鑫星新材料有限公司 | Shaft sealing device between Roots pump end cover shell and pump cavity |
| CN112032096A (en) * | 2018-12-31 | 2020-12-04 | 马瓯丽 | Leakage-proof sealing device for liquid pump |
| CN111692123A (en) * | 2020-05-09 | 2020-09-22 | 青海盐湖工业股份有限公司 | Double-end-face mechanical sealing device for pump |
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| Publication number | Publication date |
|---|---|
| CN115638107B (en) | 2024-01-19 |
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Effective date of registration: 20231226 Address after: Building 3 and 4, Building 284 Huanguan Middle Road, Songyuanxia Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province, 518000 Applicant after: SHENZHEN JUQIANG SPECIAL ELECTROMECHANICAL CO.,LTD. Address before: 226000 Boding Machinery Industrial Park, north of Xingyuan West Road, High tech Zone, Nantong, Jiangsu Applicant before: Nantong Xinke Intelligent Technology Co.,Ltd. |
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