CN203906375U - High-pressure leakage-preventing air blower - Google Patents
High-pressure leakage-preventing air blower Download PDFInfo
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- CN203906375U CN203906375U CN201420331020.2U CN201420331020U CN203906375U CN 203906375 U CN203906375 U CN 203906375U CN 201420331020 U CN201420331020 U CN 201420331020U CN 203906375 U CN203906375 U CN 203906375U
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- impeller shaft
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- ring
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Abstract
The utility model discloses a high-pressure leakage-preventing air blower which comprises a cylinder, a right end cover, a left end cover, a driving oil tank arranged on the right end cover, an auxiliary oil tank arranged on the left end cover, a driving impeller shaft, a driven impeller shaft, a driving gear, a driven gear, first bearings arranged in the right end cover, second bearings arranged in the left end cover, and a draught fan inlet, wherein the driving gear and the driven gear are arranged in the driving oil tank and meshed. An impeller gap adjustment device is arranged at the position, located at the tail end of the driving oil tank, of the driven impeller shaft. Combined type sealing devices are arranged between the first bearings and the cylinder and between the second bearings and the cylinder in the mode of surrounding the driving impeller shaft and the driven impeller shaft respectively. Water cooling coil pipes are installed in the driving oil tank and the auxiliary oil tank respectively. According to the high-pressure leakage-preventing air blower, piston rings are arranged, and it is guaranteed that gas can not be leaked to the end cover faces on the two sides from a conveying cavity inside the cylinder; the combined type sealing devices are installed, and the mechanical sealing reliability is improved; the driving impeller shaft is of a five-bearing structure, bearing loads are increased, and the use performance is improved.
Description
Technical field
The utility model belongs to blower fan technical field, is specifically related to a kind of high pressure anti-leak blower.
Background technique
While carrying poisonous and harmful, the special gas such as inflammable and explosive, require the blower itself can not be to outward leakage.In prior art, blower is mainly generally to seal or labyrinth seal by skeletal structure on end cap, on end cap, generally there is open to atmosphere hole, allowed part air to release from hole, near bearing side, adopting common outside framework oil seal, reach the effect of oil sealing, outside framework oil seal is very high to the size requirement of mounting hole, and the long-time applied at elevated temperature of rubber is easily aging, also will consider reacting of gas and rubber when carrying special gas.So when carrying some special gas, general employing mechanical seal seals, mainly between end cap and bearing, add in the market mechanical seal and completely cut off lubricant oil and gas, but effect is bad, there is portion gas to seal sealing surface by direct impulse machine, long-play can cause the inefficacy of sealing surface, some producer adds labyrinth seal before mechanical seal, but effect neither be fine, can not change the impact of gas to mechanical seal, finally cause the inefficacy of sealing surface.
Summary of the invention
The purpose of this utility model is for above-mentioned deficiency of the prior art, and a kind of high pressure anti-leak blower of good sealing effect is provided.
The purpose of this utility model is achieved through the following technical solutions:
A high pressure anti-leak blower, comprise cylinder body, right end cap, left end cap, be located at driving fuel tank on right end cap, be located at drop tank on left end cap, initiatively impeller shaft, driven impeller shaft, be located at and drive intermeshing driving gear and driven gear in fuel tank, be located at the clutch shaft bearing in right end cap and be located at the second bearing, the blower fan import in left end cap; Described active impeller shaft and driven impeller shaft are located by driving gear and driven gear respectively, and initiatively impeller shaft is supported by two clutch shaft bearings and two the second bearings, and driven impeller shaft is supported by two clutch shaft bearings and two the second bearings; At driven impeller shaft, be positioned at and drive the end of fuel tank to be provided with impeller clearance regulating device; Between clutch shaft bearing and cylinder body, be provided with compound sealing device around active impeller shaft and driven impeller shaft respectively between the second bearing and cylinder body; In described driving fuel tank and drop tank, be separately installed with water cooling coil pipe.
Described impeller clearance regulating device comprises the expansion coupling sleeve being located between driven gear and driven impeller shaft, the friction top that is located at driven impeller shaft end, friction top is pressed together on expansion coupling by hold-down bolt and puts, expansion coupling is enclosed within the pressuring action of hold-down bolt and friction top, and driven impeller shaft and driven gear are fastenedly connected.
Described expansion coupling sleeve is the expansion coupling sleeve of standard GB/T 5867-86.
Described compound sealing device comprises compound rotating ring, stationary ring, rotating ring "O"-ring and stationary ring "O"-ring, stationary ring is arranged on right end cap or left end cap, stationary ring front end seals by stationary ring "O"-ring and right end cap or left end cap, compound rotating ring is a long axle sleeve, and compound rotating ring links together by rotating ring "O"-ring and active impeller shaft or driven impeller shaft.
The compound rotating ring of described compound sealing device is provided with piston ring groove, in piston ring groove, piston ring is installed.
Further, the drive end of described active impeller shaft has additional initiatively impeller shaft of a 3rd bearing supporting, makes initiatively impeller shaft form five bearing structures, to improve bearing load and the usability of blower fan, improves the working life of fan bearing.
Further, between the second bearing between clutch shaft bearing and compound sealing device in right end cap, in left end cap and compound sealing device, be provided with relief hole respectively, through reflow pipe, import is connected described relief hole with blower fan, prevents that gas from directly impacting compound sealing device.
Described active impeller shaft and the surface of driven impeller shaft are respectively equipped with corrosion-resistant coating, and described inner surface of cylinder block is provided with corrosion-resistant coating, and according to the size of gas attack, corrosion-resistant coating is selected the anticorrosive coatings such as TEFLON.
Described active impeller shaft and the impeller of driven impeller shaft and axle are overall structure, adopt spheroidal graphite cast iron QT500 integrally casting to process, guaranteed the concentricity precision of impeller and axle, described impeller is the solid impeller of three leaves, Leakage prevention, the capacity utilization of blower fan is high, and air-out efficiency is high, turns round more steady.
Described clutch shaft bearing and the 3rd bearing are roller bearing, and the second described bearing is ball bearing.
Described driving gear is helical gear or spur gear.
Described driven gear is helical gear or spur gear.
Rich being close to of described water cooling coil pipe ring drives fuel tank and drop tank inwall.
Compared to the prior art, the beneficial effects of the utility model:
The utility model high pressure anti-leak blower is provided with piston ring, guarantees that gas is not carried in cylinder body cavity, to leak into two side ends capping; At left and right end cap, compound sealing device has been installed, improved the reliability of mechanical seal, guarantee not direct impulse machine seal face of the gas that leaks by piston ring packing on a small quantity in cylinder body, particularly, when roots blower is carried special gas, roots blower oil, the Security of hermetic seal, reliability have greatly been improved; In blower two end cap side, adopt reflow pipe to be communicated to blower fan import, prevent that gas from directly impacting compound sealing device; By water cooling coil pipe, take away the heat of lubricant oil in the mailbox of both sides, to the lubricant oil of both sides fuel tank the inside, carry out cooling.
General Roots blower is respectively arranged with two bearing supportings at the two ends of two roots rotors, totally four bearings, and the active impeller shaft of the utility model high pressure anti-leak blower increases a bearing at drive end, form five bearing structures, to improve bearing load and the usability of blower fan, the working life of improving fan bearing.Driving gear and driven gear are arranged on driving side, because gear is near driving side, can carry larger moment of torsion, thereby the working pressure of blower fan are higher during blower fan rotation, and transmission is more steadily reliable, has improved the force-bearing situation of fan bearing, and bearing is more durable in use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model high pressure anti-leak blower.
In Fig. 1,1-cylinder body, 2-right end cap, 3-left end cap, 4-drives fuel tank, 5-drop tank, 6-is impeller shaft initiatively, the driven impeller shaft of 7-, 8-driving gear, 9-driven gear, 10-clutch shaft bearing, 11-the second bearing, 12-impeller clearance regulating device, 13-compound sealing device, 14-piston ring, the import of 15-blower fan, 16-water cooling coil pipe, 17-the 3rd bearing, 18-relief hole, 121-expansion coupling sleeve, 122-friction top, 123-hold-down bolt, the compound rotating ring of 131-, 132-stationary ring, 133-rotating ring "O"-ring, 134-stationary ring "O"-ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described further.
As shown in Figure 1, a kind of high pressure anti-leak blower, comprise cylinder body 1, right end cap 2, left end cap 3, be located at the driving fuel tank 4 on right end cap 2, be located at the drop tank 5 on left end cap 3, active impeller shaft 6, driven impeller shaft 7, be located at and drive the interior intermeshing driving gear 8 of fuel tank 4 and driven gear 9, be located at the clutch shaft bearing 10 in right end cap 2 and be located at the second bearing 11 in left end cap 3, blower fan import 15, described active impeller shaft 6 and driven impeller shaft are respectively by driving gear 8 and driven gear location 9, initiatively impeller shaft 6 is by two clutch shaft bearings 10 and two the second bearing 11 supportings, drive end at active impeller shaft 6 has additional initiatively impeller shaft 6 of the 3rd bearing 17 supportings, driven impeller shaft 7 is by two clutch shaft bearings 10 and two the second bearing 11 supportings, at driven impeller shaft 7, be positioned at and drive the end of fuel tank 4 to be provided with impeller clearance regulating device 12, described impeller clearance regulating device 12 comprises the expansion coupling sleeve 121 being located between driven gear 9 and driven impeller shaft 7, the friction top 122 that is located at driven impeller shaft 7 ends, friction top 122 is pressed together on expansion coupling sleeve 121 by hold-down bolt 123, expansion coupling sleeve 121, under the pressuring action of hold-down bolt 123 and friction top 122, is solidly connected driven impeller shaft 7 and driven gear tight 9, between clutch shaft bearing 10 and cylinder body 1, between the second bearing 12 and cylinder body 1, around active impeller shaft 6 and driven impeller shaft 7, be provided with compound sealing device 13 respectively, described compound sealing device 13 comprises compound rotating ring 131, stationary ring 132, rotating ring "O"-ring 133 and stationary ring "O"-ring 134, stationary ring 132 is arranged on right end cap 2 or left end cap 3, stationary ring 132 front ends are by stationary ring "O"-ring 134 and right end cap 2 or left end cap 3 sealings, compound rotating ring 131 is long axle sleeves, compound rotating ring 131 links together by rotating ring "O"-ring 133 and active impeller shaft 6 or driven impeller shaft 7, described compound rotating ring 131 is provided with piston ring groove, and piston ring 14 is installed in piston ring groove, in described driving fuel tank 4 and drop tank 5, be separately installed with water cooling coil pipe 16, rich being close to of water cooling coil pipe 16 rings drives fuel tank 4 and drop tank 5 inwalls, between the second bearing 11 between clutch shaft bearing in right end cap 2 10 and compound sealing device 13, in left end cap 3 and compound sealing device 13, be provided with relief hole 18 respectively, relief hole 18 is connected with blower fan import 15 through reflow pipe, prevents that gas from directly impacting compound sealing device 13.
Described expansion coupling sleeve 121 is the expansion coupling sleeve of standard GB/T 5867-86.
Described active impeller shaft 6 and the impeller of driven impeller shaft 7 and axle are overall structure, adopt spheroidal graphite cast iron QT500 integrally casting to process, guaranteed the concentricity precision of impeller and axle, impeller is the solid impeller of three leaves, Leakage prevention, the capacity utilization of blower fan is high, and air-out efficiency is high, turns round more steady.
Described clutch shaft bearing 10 and the 3rd bearing 17 are roller bearing, and the second described bearing 11 is ball bearing.
Described active impeller shaft 6 and the surface of driven impeller shaft 7 are respectively equipped with corrosion-resistant coating, and described cylinder body 1 internal surface is provided with corrosion-resistant coating, and according to the size of gas attack, corrosion-resistant coating is selected the anticorrosive coatings such as TEFLON.
Described driving gear 8 is spur gear; Described driven gear 9 is spur gear.
The utility model high pressure anti-leak blower is provided with piston ring, guarantees that gas is not carried in cylinder body cavity, to leak into two side ends capping; At left and right end cap, compound sealing device has been installed, improved the reliability of mechanical seal, guarantee not direct impulse machine seal face of the gas that leaks by piston ring packing on a small quantity in cylinder body, particularly, when roots blower is carried special gas, roots blower oil, the Security of hermetic seal, reliability have greatly been improved; In blower two end cap side, adopt reflow pipe to be communicated to blower fan import, prevent that gas from directly impacting compound sealing device; By water cooling coil pipe, take away the heat of lubricant oil in the mailbox of both sides, to the lubricant oil of both sides fuel tank the inside, carry out cooling.The active impeller shaft of the utility model high pressure anti-leak blower increases a bearing at drive end, forms five bearing structures, to improve bearing load and the usability of blower fan, improves the working life of fan bearing.Driving gear and driven gear are arranged on driving side, because gear is near driving side, can carry larger moment of torsion, thereby the working pressure of blower fan are higher during blower fan rotation, and transmission is more steadily reliable, has improved the force-bearing situation of fan bearing, and bearing is more durable in use.
Claims (9)
1. a high pressure anti-leak blower, comprise cylinder body, right end cap, left end cap, be located at driving fuel tank on right end cap, be located at drop tank on left end cap, initiatively impeller shaft, driven impeller shaft, be located at and drive intermeshing driving gear and driven gear in fuel tank, be located at the clutch shaft bearing in right end cap and be located at the second bearing, the blower fan import in left end cap; Active impeller shaft and driven impeller shaft described in it is characterized in that are located by driving gear and driven gear respectively, and initiatively impeller shaft is supported by two clutch shaft bearings and two the second bearings, and driven impeller shaft is supported by two clutch shaft bearings and two the second bearings; At driven impeller shaft, be positioned at and drive the end of fuel tank to be provided with impeller clearance regulating device; Between clutch shaft bearing and cylinder body, be provided with compound sealing device around active impeller shaft and driven impeller shaft respectively between the second bearing and cylinder body; In described driving fuel tank and drop tank, be separately installed with water cooling coil pipe.
2. high pressure anti-leak blower according to claim 1, it is characterized in that described impeller clearance regulating device comprises the expansion coupling sleeve being located between driven gear and driven impeller shaft, the friction top that is located at driven impeller shaft end, friction top is pressed together on expansion coupling by hold-down bolt and puts, expansion coupling is enclosed within the pressuring action of hold-down bolt and friction top, and driven impeller shaft and driven gear are fastenedly connected.
3. high pressure anti-leak blower according to claim 1, it is characterized in that described compound sealing device comprises compound rotating ring, stationary ring, rotating ring "O"-ring and stationary ring "O"-ring, stationary ring is arranged on right end cap or left end cap, stationary ring front end seals by stationary ring "O"-ring and right end cap or left end cap, compound rotating ring is a long axle sleeve, and compound rotating ring links together by rotating ring "O"-ring and active impeller shaft or driven impeller shaft.
4. high pressure anti-leak blower according to claim 3, is characterized in that the compound rotating ring of described compound sealing device is provided with piston ring groove, in piston ring groove, piston ring is installed.
5. high pressure anti-leak blower according to claim 1, is characterized in that the drive end of described active impeller shaft has additional initiatively impeller shaft of a 3rd bearing supporting.
6. high pressure anti-leak blower according to claim 1, it is characterized in that between the second bearing between the clutch shaft bearing and compound sealing device in right end cap, in left end cap and compound sealing device, being provided with relief hole respectively, through reflow pipe, import is connected described relief hole with blower fan.
7. high pressure anti-leak blower according to claim 1, is characterized in that described active impeller shaft and the surface of driven impeller shaft are respectively equipped with corrosion-resistant coating, and described inner surface of cylinder block is provided with corrosion-resistant coating.
8. high pressure anti-leak blower according to claim 1, is characterized in that described active impeller shaft and impeller and the axle of driven impeller shaft are overall structure, and described impeller is the solid impeller of three leaves.
9. high pressure anti-leak blower according to claim 1, is characterized in that described clutch shaft bearing and the 3rd bearing are roller bearing, and the second described bearing is ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331020.2U CN203906375U (en) | 2014-06-19 | 2014-06-19 | High-pressure leakage-preventing air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331020.2U CN203906375U (en) | 2014-06-19 | 2014-06-19 | High-pressure leakage-preventing air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906375U true CN203906375U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420331020.2U Active CN203906375U (en) | 2014-06-19 | 2014-06-19 | High-pressure leakage-preventing air blower |
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| Country | Link |
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| CN (1) | CN203906375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246403B (en) * | 2017-07-06 | 2023-09-05 | 邯钢集团邯宝钢铁有限公司 | Shaft end sealing device of acid mist fan |
-
2014
- 2014-06-19 CN CN201420331020.2U patent/CN203906375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246403B (en) * | 2017-07-06 | 2023-09-05 | 邯钢集团邯宝钢铁有限公司 | Shaft end sealing device of acid mist fan |
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| GR01 | Patent grant |