CN209838687U - Sealing device for Roots blower - Google Patents
Sealing device for Roots blower Download PDFInfo
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- CN209838687U CN209838687U CN201920600957.8U CN201920600957U CN209838687U CN 209838687 U CN209838687 U CN 209838687U CN 201920600957 U CN201920600957 U CN 201920600957U CN 209838687 U CN209838687 U CN 209838687U
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- ring
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Abstract
The utility model relates to a sealing device for roots's fan, including rotating ring, quiet ring and gland and sealing mechanism, the rotating ring be used for connecting with the transmission shaft and rotate along with the transmission shaft, quiet ring including being used for connecting the end plate of wallboard one side and the outer axle sleeve of sealed setting in the wallboard shaft hole, gland seal installation is at the outer axle sleeve terminal surface of quiet ring, the rotating ring is worn to establish in quiet ring and gland, and forms the cavity between quiet ring, gland and the rotating ring and be used for installing sealing mechanism and be used for letting in coolant, the pore inlet way and the pore outlet way on the outer axle sleeve of quiet ring communicate with each other with the cavity. The utility model discloses rational in infrastructure, compact, simple to operate can cool off seal assembly to direct forcing, effectively improves roots's fan's operating condition.
Description
Technical Field
The utility model relates to a sealing device for roots's fan belongs to roots's fan technical field.
Background
The Roots blower is a rotary variable displacement vacuum pump, when the Roots blower is operated, discontinuous gas is discharged after being compressed by a rotor, so that a larger working pressure difference exists between an inlet and an outlet of the Roots blower, the temperature rise of the Roots blower has a direct relation with the compression ratio and the efficiency of the Roots blower, heat generated by the compressed gas needs to be dissipated through the Roots blower, but the heat absorbed by the rotor is not easily dissipated under a low-pressure state, when the pressure difference of the Roots blower exceeds a specified value, the temperature of the rotor is too high to cause undersize of a gap, so that the Roots blower cannot normally work, and therefore, the Roots blower needs to be forcibly cooled.
The roots fan not only needs to cool the machine body and the outlet of the machine body, but also needs to cool the sealing devices of the wallboards arranged on two sides, and the cooling water cools the wallboards through the water channels in the wallboards, and then cools the sealing mechanisms and the bearings in the wallboards.
Disclosure of Invention
The utility model aims at providing a rational in infrastructure, compact, simple to operate can cool off seal assembly to direct forcing, effectively improves the operating condition's of fan sealing device for roots's fan.
Another object of the utility model is to provide a sealed reliable sealing device for roots's fan.
The utility model discloses a technical scheme who reaches above-mentioned purpose is: the utility model provides a sealing device for roots's fan which characterized in that: including rotating ring, quiet ring and gland and sealing mechanism, the rotating ring be used for connecting and rotate along with the transmission shaft, quiet ring including be used for connecting the end plate of wallboard one side and the sealed outer axle sleeve that sets up in the wallboard shaft hole, gland seal installation is at the outer axle sleeve terminal surface of quiet ring, the rotating ring is worn to establish in quiet ring and gland, and forms the cavity between quiet ring, gland and the rotating ring and be used for installing sealing mechanism and be used for letting in coolant, the pore of intaking on the outer axle sleeve of quiet ring communicates with each other with the cavity with a pore way.
The utility model discloses a technical scheme who reaches above-mentioned purpose is: a sealing device for roots's fan, its characterized in that: the sealing assembly comprises a first static sealing ring, a second static sealing ring, a first movable sealing ring, a second movable sealing ring and a connecting ring, wherein the first static sealing ring and the second static sealing ring are respectively and hermetically arranged on end plates of a gland and the static rings, the connecting ring is sleeved on an outer sleeve and positioned between the first movable sealing ring and the second movable sealing ring, the connecting ring is used for connecting the first movable sealing ring and the second movable sealing ring and enabling the first movable sealing ring and the second movable sealing ring to synchronously rotate, springs at two ends of the connecting ring are respectively supported on the first movable sealing ring and the second movable sealing ring, the first movable sealing ring and the second movable sealing ring are connected with the end faces of the first static sealing ring and the second static sealing ring respectively in a sealing mode, and radial pins arranged on the connecting ring are arranged in adjusting grooves of the movable rings.
The utility model discloses a sealing device adopts the rotating ring, quiet ring and gland and seal assembly, the outer axle sleeve terminal surface at quiet ring is installed to the gland, and the rotating ring sets up in gland and quiet ring, consequently, enable quiet ring, form the cavity between gland and the rotating ring, this cavity not only is used for installing seal assembly, but also can go into the cooling chamber, because the pore of advancing on the outer axle sleeve of quiet ring communicates with each other with the cavity with a pore, can let in the cooling medium gets into the cavity, directly carry out forced cooling to seal assembly, can in time dispel the heat to seal assembly, improve the cooling effect of fan, and reduce the damage of seal assembly and bearing, effectively improve the operating condition of fan, prolong the life of fan. This with novel rotating ring, quiet ring and the gland structure that adopts the equipment, the installation is maintained conveniently. The utility model discloses an axial round pin axle is connected two movable sealing rings, consequently enables to install and can reliably work at the spring on two movable sealing rings and go-between, makes the quiet sealing ring can keep good encapsulated situation, simultaneously through installing the round pin axle on the go-between, makes the rotating ring can carry out axial displacement for quiet ring, makes the transmission shaft of installing on the rotating ring axial regulation, makes things convenient for the regulation installation of transmission shaft.
Drawings
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the sealing device of the present invention.
FIG. 2 is a schematic sectional view A-A of FIG. 1.
Fig. 3 is a schematic sectional structure view of B-B of fig. 1.
Figure 4 is a schematic view of the utility model sealing device installed in the wall panel.
Wherein: 1-static ring, 1-end plate, 1-2-outer shaft sleeve, 1-3-hole outlet channel, 1-4-hole inlet channel, 2-gland, 2-1-outer sealing groove, 3-dynamic ring, 3-1-adjusting groove, 4-transmission shaft, 5-radial pin, 6-connecting ring, 6-1-spring seat, 7-first dynamic sealing ring, 8-gland sealing ring, 9-first static sealing ring, 9-1-first convex ring, 10-first limit pin, 11-axial pin shaft, 12-second dynamic sealing ring, 13-second static sealing ring, 13-1-second convex ring, 14-static ring sealing ring, 15-second limit pin, 16-spring, 17-wall plate, 17-1-liquid outlet channel, 17-2-liquid inlet channel.
Detailed Description
As shown in the figures 1-4, the utility model discloses a sealing device for roots's fan, including rotating ring 3, quiet ring 1 and gland 2 and seal assembly, can be with sealing device integral erection in wallboard 17, support transmission shaft 4 and realize sealedly.
See fig. 1 ~ 3 shown, the utility model discloses a rotating ring 3 is used for being connected with transmission shaft 4 and rotates along with transmission shaft 4, and this rotating ring 3 is the axle sleeve form, and the inner circle and the both ends face of rotating ring 3 are equipped with the seal groove that is used for installing the sealing washer, install the sealing washer in the seal groove of 3 inner circles of rotating ring, make rotating ring 3 and 4 sealing connection of transmission shaft, and simultaneously, install the sealing washer in the seal groove of the both ends face of rotating ring 3, seal through the part that the sealing washer meets, seal the gas in the fan.
As shown in FIGS. 1-3, the stationary ring 1 of the present invention comprises an end plate 1-1 for connecting to one side of the wall plate 17 and an outer shaft sleeve 1-2 arranged in the shaft hole of the wall plate 17 in a sealing manner, wherein the end plate 1-1 is provided with a mounting hole, as shown in FIG. 4, a fastener passes through the mounting hole of the end plate 1-1 and is mounted on the wall plate 17, so as to facilitate mounting the assembled sealing device on the wall plate 17.
As shown in figures 1-3, the gland 2 of the utility model is hermetically installed on the end surface of the outer shaft sleeve 1-2 of the stationary ring 1, the gland 2 is provided with a small shaft section which is arranged in the outer shaft sleeve 1-2 of the stationary ring 1, the periphery of the small shaft section is provided with an outer sealing groove 2-1, and the sealing ring is installed on the outer sealing groove 2-1 and is connected with the outer shaft sleeve 1-2 for sealing. As shown in figures 2-4, the movable ring 3 of the utility model is arranged in the static ring 1 and the gland 2 in a penetrating way, a cavity is formed among the static ring 1, the gland 2 and the movable ring 3 for installing a sealing component and leading in a cooling medium, an inlet channel 1-4 and an outlet channel 1-3 on the outer shaft sleeve 1-2 of the static ring 1 are communicated with the cavity, the inlet channel 1-4 on the static ring 1 is communicated with an inlet channel 17-2 on a wall plate 17, the cooling medium is led into the cavity of the sealing device, the outlet channel 1-3 on the static ring 1 is communicated with an outlet channel 17-1 on the wall plate 17, the cooling medium of heat exchange can be discharged, the inlet channel 1-4 on the outer shaft sleeve 1-2 of the static ring 1 of the utility model can be arranged at the lower side, and the outlet channel 1-3 is arranged at the upper side on the outer shaft sleeve 1-2 and enters into the cavity through, the sealing assembly, the movable ring 3 and the static ring 1 are forcibly cooled, so that the sealing assembly can reliably work.
See fig. 2, 3 and show, the utility model discloses seal assembly includes that first quiet sealing ring 9, the quiet sealing ring 13 of second, first movable sealing ring 7 and second move sealing ring 12 and go-between 6, and this first quiet sealing ring 9, the quiet sealing ring 13 of second and first movable sealing ring 7 and second move sealing ring 12 and be the graphite alkene sealing ring, have better high heat conduction, low friction and from wetting nature, temperature resistance and corrosion resistance.
See fig. 2, 3 shown, the utility model discloses a first quiet sealing ring 9 and the quiet sealing ring 13 of second are respectively seal installation on gland 2 and quiet end plate 1-1 of ring 1, go-between 6 cover is on outer axle sleeve 1-2 and lie in first movable sealing ring 7 and second and move between sealing ring 12, go-between 6 is used for connecting first movable sealing ring 7 and second and moves sealing ring 12 and make first movable sealing ring 7 and second move sealing ring 12 and rotate in step, the utility model discloses a connect at least one axial pin axle 11 on go-between 6, and axial pin axle 11 moves sealing ring 7 and second with first movable sealing ring 7 and second and move sealing ring 12 and be connected, the utility model discloses can adopt the axial pin axle 11 that two or three equipartitions set up to connect first movable sealing ring 7 and second and move sealing ring 12. See fig. 3 and show, the utility model discloses the spring 16 at go-between 6 both ends pushes up respectively on first movable sealing ring 7 and second movable sealing ring 12, and first movable sealing ring 7 and second movable sealing ring 12 meet sealedly with respective first quiet sealing ring 9 and the quiet sealing ring 13 terminal surface of second, provide the axial thrust who moves the sealing ring through spring 16, ensure that the sound sealing ring meets and realize end face seal. As shown in FIG. 2, the radial pin 5 installed on the connection ring 6 of the present invention is disposed in the adjustment groove 3-1 of the movable ring 3, the radial pin 5 can be a bolt, and the adjustment groove 3-1 can be a ring groove, so that the movable ring 3 can be axially adjusted relative to the stationary ring 1 and the movable sealing ring, when the transmission shaft 4 is installed, the transmission shaft 4 can be axially adjusted through the adjustment groove 3-1, and the installation requirement is satisfied.
As shown in figure 3, the two ends of the connecting ring 6 of the utility model are uniformly provided with spring seats 6-1 in a staggered manner, the springs 16 are respectively arranged in the corresponding spring seats 6-1, and the first movable sealing ring 7 and the second movable sealing ring 12 rotate along with the follower ring 3, so that the problem that the springs 16 generate shearing force to cause early damage of the springs 16 can be thoroughly solved, and reliable sealing of the movable and static sealing surfaces can be maintained.
See fig. 2, 3 and show, the utility model discloses the inner circle of first movable sealing ring 7 and the second move and circle and be equipped with the inside seal groove on the inner circle of sealing ring 12, the inside seal setting is moved in the inside seal groove of sealing ring 12 and the second of first movable sealing ring 7 and is met sealedly with rotating ring 3, makes first movable sealing ring 7 and second move sealing ring 12 and rotating ring 3 and keep good sealedly.
As shown in fig. 2 and 3, the first static sealing ring 9 of the present invention has a first convex ring 9-1, the second static sealing ring 13 has a second convex ring 13-1, and the gland sealing ring 8 disposed at the periphery of the first convex ring 9-1 and the static sealing ring 14 disposed at the periphery of the second convex ring 13-1 are respectively connected and sealed with the end plate 1-1 of the gland 2 and the end plate 1-1 of the static ring 1, so as to facilitate the installation of the gland sealing ring 8 and the static sealing ring 14. See fig. 2, 3 show, the utility model discloses be equipped with on gland 2 and be used for carrying out spacing two at least first spacer pins 10 or bellied first spacing ring to first static sealing ring 9, first spacer pin 10 or first spacing ring match with the first bulge loop of first static sealing ring 9, enable gland 2 and first static sealing ring 9 quick location through first spacer pin 10 or first spacing ring, and easy to assemble. See dispute 2, 3, the utility model discloses be equipped with on the end plate 1-1 and be used for carrying on spacing two at least second spacer pins 15 or bellied second spacing collar to the quiet sealing ring 13 of second, second spacer pin 15 or second spacing collar match with the second bulge loop 13-1 hole on the quiet sealing ring 13 of second, enable quiet ring 1 and the quiet sealing ring 13 of second to reach quick location installation through second spacer pin 15 or second spacing collar.
Claims (9)
1. The utility model provides a sealing device for roots's fan which characterized in that: including rotating ring (3), quiet ring (1) and gland (2) and seal assembly, rotating ring (3) be used for connecting with the transmission shaft and rotate along with the transmission shaft, quiet ring (1) including being used for connecting end plate (1-1) and sealed outer axle sleeve (1-2) of setting in the wallboard shaft hole of wallboard one side, gland (2) seal installation is in outer axle sleeve (1-2) terminal surface of quiet ring (1), rotating ring (3) are worn to establish in quiet ring (1) and gland (2), and form the cavity between quiet ring (1), gland (2) and rotating ring (3) and be used for installing seal assembly and let in coolant, pore inlet (1-4) and pore outlet (1-3) on the outer axle sleeve (1-2) of quiet ring (1) communicate with each other with the cavity.
2. The sealing device for a roots blower according to claim 1, wherein: the sealing assembly comprises a first static sealing ring (9), a second static sealing ring (13), a first movable sealing ring (7), a second movable sealing ring (12) and a connecting ring (6), wherein the first static sealing ring (9) and the second static sealing ring (13) are respectively and hermetically arranged on a gland (2) and an end plate (1-1) of the static ring (1), the connecting ring (6) is sleeved on an outer shaft sleeve (1-2) and is positioned between the first movable sealing ring (7) and the second movable sealing ring (12), the connecting ring (6) is used for connecting the first movable sealing ring (7) and the second movable sealing ring (12) and enabling the first movable sealing ring (7) and the second movable sealing ring (12) to synchronously rotate, springs (16) at two ends of the connecting ring (6) are respectively abutted against the first movable sealing ring (7) and the second movable sealing ring (12), and the first movable sealing ring (7) and the second movable sealing ring (12) and the respective first static sealing ring (9) and the second static sealing ring (13) are respectively positioned at one end The surfaces are sealed, and a radial pin (5) arranged on the connecting ring (6) is arranged in an adjusting groove (3-1) of the movable ring (3).
3. The sealing device for a roots blower according to claim 2, wherein: the connecting ring (6) is connected with at least one axial pin shaft (11), and the axial pin shaft (11) is connected with the first movable sealing ring (7) and the second movable sealing ring (12).
4. The sealing device for a roots blower according to claim 2 or 3, wherein: spring seats (6-1) are uniformly distributed at two ends of the connecting ring (6) in a staggered manner, and the springs (16) are respectively arranged in the corresponding spring seats (6-1).
5. The sealing device for a roots blower according to claim 2, wherein: and inner sealing grooves are arranged on the inner ring of the first movable sealing ring (7) and the inner ring of the second movable sealing ring (12), and the inner sealing rings are correspondingly arranged in the inner sealing grooves of the first movable sealing ring (7) and the inner sealing grooves of the second movable sealing ring (12) and are connected with the movable ring (3) for sealing.
6. The sealing device for a roots blower according to claim 2, wherein: the first static sealing ring (9) is provided with a first convex ring (9-1), the second static sealing ring (13) is provided with a second convex ring (13-1), a gland sealing ring (8) arranged at the periphery of the first convex ring (9-1) and a static ring sealing ring (14) arranged at the periphery of the second convex ring (13-1) are respectively connected and sealed with the gland (2) and an end plate (1-1) of the static ring (1), the gland (2) is provided with at least two first limiting pins (10) or raised first limiting rings for limiting the first static sealing ring (9), the first limiting pins (10) or the first limiting rings are matched with the first convex ring of the first static sealing ring (9), the end plate (1-1) is provided with at least two second limiting pins (15) or raised second limiting rings for limiting the second static sealing ring (13), the second limit pin (15) or the second limit ring is matched with the inner hole of the second convex ring (13-1) on the second static sealing ring (13).
7. The sealing device for a roots blower according to claim 2, wherein: the first static sealing ring (9), the second static sealing ring (13), the first movable sealing ring (7) and the second movable sealing ring (12) are all graphene sealing rings.
8. The sealing device for a roots blower according to claim 1, wherein: and the inner ring and two end faces of the movable ring (3) are provided with sealing grooves for mounting sealing rings, and the sealing rings are mounted in the sealing grooves.
9. The sealing device for a roots blower according to claim 1, wherein: the gland (2) is provided with a small shaft section which is arranged in an outer shaft sleeve (1-2) of the stationary ring (1), the periphery of the small shaft section is provided with an outer sealing groove (2-1), and the sealing ring is arranged in the outer sealing groove (2-1) and is connected with the outer shaft sleeve (1-2) for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920600957.8U CN209838687U (en) | 2019-04-28 | 2019-04-28 | Sealing device for Roots blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920600957.8U CN209838687U (en) | 2019-04-28 | 2019-04-28 | Sealing device for Roots blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209838687U true CN209838687U (en) | 2019-12-24 |
Family
ID=68914618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920600957.8U Active CN209838687U (en) | 2019-04-28 | 2019-04-28 | Sealing device for Roots blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209838687U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962647A (en) * | 2022-04-26 | 2022-08-30 | 国家海洋技术中心 | Sealing structure of constant-temperature seawater tank |
-
2019
- 2019-04-28 CN CN201920600957.8U patent/CN209838687U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962647A (en) * | 2022-04-26 | 2022-08-30 | 国家海洋技术中心 | Sealing structure of constant-temperature seawater tank |
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