CN212651491U - Built-in double-gland type bypass valve of bag type dust collector - Google Patents
Built-in double-gland type bypass valve of bag type dust collector Download PDFInfo
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- CN212651491U CN212651491U CN202020474191.6U CN202020474191U CN212651491U CN 212651491 U CN212651491 U CN 212651491U CN 202020474191 U CN202020474191 U CN 202020474191U CN 212651491 U CN212651491 U CN 212651491U
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- bypass valve
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- sealing gasket
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Abstract
The utility model discloses a built-in two gland formula bypass valves of bag collector, including drive assembly, gland I, gland II, lead screw, gland guide rail, I support of gland, II supports of gland, motor and speed reducer are drive assembly, gland I is conical, gland II is flat for the spring. The utility model uses the structure of the motor and the speed reducer as the driving part, the whole stability is improved, and the failure rate is reduced; the combination of the conical gland and the spring flat plate type gland is easier to seal, and the sealing performance is further enhanced; the utility model discloses rational in infrastructure, leakproofness and stability are strong.
Description
Technical Field
The utility model belongs to the technical field of dust collector, especially, relate to a built-in double gland formula bypass valve of bag collector.
Background
The bypass valve is a device for communicating and closing the flue at the inlet and outlet of the bag-type dust collector. When the temperature of the flue gas exceeds the temperature range which can be borne by the dust removal box of the dust remover or the pressure difference of the dust removal box of the dust remover is larger than a set value and cannot be reduced, when the temperature of the flue gas exceeds the design condition of the dust remover, the bypass valve is automatically opened, the inlet and outlet valves of the bag-type dust remover are closed, and the flue gas is directly discharged to a chimney through the induced draft fan. Bypass valves have been found in many flue gas systems as a necessary guarantee for emergency venting in case of accident, ensuring safe and stable operation of the system. The sealing performance requirements of the bypass valve are also increased due to ultra-low emissions requirements.
The existing double-layer bypass valve is mostly driven by an air cylinder, and the air cylinder has the possibility of air cut-off, so that the bypass valve can not be normally opened easily; meanwhile, when the bypass valve is closed, the sealing performance is poor, the sealing effect cannot be achieved, and the dust emission exceeding the standard can be directly caused.
For this reason, a new technical solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a technical scheme does:
the built-in double-gland type bypass valve of the bag type dust collector comprises a driving part, a gland I, a gland II, a screw rod, a gland guide rail, a gland I support and a gland II support, wherein the gland I is conical, the gland II is a circular flat plate, the driving part is fixed on an installation support, the screw rod is arranged right below the installation support, the screw rod penetrates through the gland I and the gland II, one end of the screw rod is fixed with the installation support through the screw rod fixing side I, the other end of the screw rod is provided with the screw rod fixing side II, the screw rod fixing side II is provided with a screw rod fixing side II support, the gland I and the gland II are guided through the gland guide rail, a compression spring is arranged between the gland I and the gland II, and the compression spring is sleeved on the peripheral part of the gland II guide rail and is abutted against the bottom surface of the gland.
Further, the driving member is preferably a motor and a speed reducer.
Furthermore, the screw rod penetrates through a screw rod nut, and the screw rod nut abuts against the top surface and the bottom surface of the inner portion of the gland I.
Further, the bottom of the guide rail of the gland II is provided with a guide rail end seal.
Furthermore, the outer contact surface of gland I is pasted and is had I sealed pad of gland, the inner contact surface of I support of gland is pasted and is had I sealed pad of support, the inner contact surface of II supports of gland is pasted and is had II sealed pads of support.
Furthermore, II guide rails of the gland are fixed below the gland I.
Further, the screw rod is preferably a fine screw rod with a small lead.
Further, when the bypass valve is in a closed state, the gland I is tightly pressed with the gland I through the gland I sealing gasket and the support sealing gasket I, and the gland II is tightly pressed with the gland II through the support sealing gasket II.
Furthermore, the gland I sealing gasket, the support sealing gasket I and the support sealing gasket II are preferably high-temperature-resistant PTFE needled felt gaskets.
The utility model has the advantages that: the utility model uses the structure of the motor and the speed reducer as the driving part, the whole stability is improved, and the failure rate is reduced; the combination of the conical gland and the spring flat plate type gland is easier to seal, and the sealing performance is further enhanced; the utility model discloses rational in infrastructure, leakproofness and stability are strong.
Drawings
Fig. 1 is a schematic view of the overall structure of the bag-type dust collector of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
In the figure: 1. the device comprises a bypass valve, 2, a dust remover box body, 3, an air inlet side of an air duct, 4, an air inlet side and an air outlet side of the air duct, 5, an air purifying chamber, 6, a driving part, 7, an installation support, 8, a screw rod fixing side I, 9, a screw rod, 10, a gland guide rail, 11, a gland I, 12, a gland I sealing gasket, 13, a support sealing gasket I, 14, a screw rod nut, 15, a compression spring, 16, a gland II guide rail, 17, a guide rail end seal, 18, a gland II, 19, a screw rod fixing side II, 20, a screw rod fixing side II support, 21, a support sealing gasket II, 22, a gland I support, 23 and a gland II support.
Detailed Description
As shown in figure 1, a built-in double-gland type bypass valve 1 of a bag type dust collector is arranged at the upper side position of an air inlet and outlet side 4 of an air duct of the bag type dust collector, an air purifying chamber 5 is arranged above the bypass valve 1, a dust collector box 2 is arranged below the bypass valve, and the air inlet side 4 of the air duct is communicated with a dust collector box body 2.
As shown in fig. 2, the built-in dual-gland type bypass valve of the bag type dust collector comprises a driving part 6, a gland I11, a gland II 18, a screw rod 9, a gland guide rail 10, a gland I support 22 and a gland II support 23, wherein the gland I11 is conical, the gland II 18 is a circular flat plate, the driving part 6 is fixed on an installation support 7, the screw rod 9 is arranged under the installation support 7, the screw rod 9 penetrates through the gland I11 and the gland II 18, one end of the screw rod 9 is fixed with the installation support 7 through the screw rod fixing side I8, the other end of the screw rod 9 is provided with a screw rod fixing side II 19, a screw rod fixing side II support 20 is arranged below the screw rod fixing side II 19, and the gland I11 and the gland II 18 are guided through.
A compression spring 15 is arranged between the gland I11 and the gland II 18, the compression spring 15 is sleeved on the peripheral portion of the gland II guide rail 16 and is abutted against the bottom surface of the gland I11 and the top surface of the gland II 18 respectively, and the gland II guide rail 16 is fixed below the gland I11. The compression spring 15 is used for ensuring the closing state of the bypass valve and compressing the gland II 18.
The screw 9 passes through a screw nut 14, and the screw nut 14 is abutted against the top surface and the bottom surface of the inner part of the gland I11.
The bottom of gland II guide rail 16 is provided with guide rail end seal 17.
The outer contact surface of gland I11 is pasted with gland I sealed 12, and the inner contact surface of gland I support 22 is pasted with support sealed I13, and the inner contact surface of gland II support 23 is pasted with support sealed II 21.
The gland II guide rail 16 is fixed below the gland I11.
When the bypass valve is in a closed state, the gland I11 is tightly pressed with the gland I support 22 through the gland I sealing gasket 12 and the support sealing gasket I13, and the gland II 18 is tightly pressed with the gland II support 23 through the support sealing gasket II 21.
The sealing gasket 12 of the gland I, the sealing gasket I13 of the support and the sealing gasket II 21 of the support are high-temperature resistant PTFE needled felt gaskets, and the screw rod 9 is a small-lead precision screw rod, so that the gland I11 and the gland II 18 are better sealed.
The driving part 6 is a motor and a speed reducer, the integral stability is improved, the failure rate is reduced, and the phenomenon of air break easily occurring in the air cylinder is avoided.
When the driving part 6 acts, the screw rod 9 rotates to drive the gland I11 to be tightly pressed with the gland I support 22 through the gland I sealing gasket 12 and the support sealing gasket I13, the gland II 18 is tightly pressed with the gland II support 23 through the support sealing gasket II 21, and the bypass valve is closed at the moment, so that the sealing of the air inlet and outlet side 4 of the air duct is completed, the direct communication channel of the air inlet and outlet side 4 of the air duct is cut off, smoke passes through the dust removal box 2 through the air inlet side 3 of the air duct, and dust carried in the smoke is filtered;
when the screw rod 9 drives the gland I11 and the gland II 18 to move upwards, the bearing 22 of the gland I and the bearing 23 of the gland II are still fixed at the original positions, the bypass valve is opened, the air inlet and outlet side 4 of the air duct is opened, and the smoke is directly discharged without being filtered by the dust removal box 2.
Claims (9)
1. The built-in double-gland type bypass valve of the bag type dust collector is characterized by comprising a driving part (6), a gland I (11), a gland II (18), a screw rod (9), a gland guide rail (10), a gland I support (22) and a gland II support (23), wherein the gland I (11) is conical, the gland II (18) is a circular flat plate, the driving part (6) is fixed on an installation support (7), the screw rod (9) is arranged under the installation support (7), the screw rod (9) penetrates through the gland I (11) and the gland II (18), one end of the screw rod (9) is fixed with the installation support (7) through a screw rod fixing side I (8), the other end of the screw rod (9) is provided with a screw rod fixing side II (19), the screw rod fixing side II support (20) is arranged on the screw rod fixing side II (19), and the gland I (11) and the gland II (18) are guided through the gland guide rail (10), and a compression spring (15) is arranged between the gland I (11) and the gland II (18), and the compression spring (15) is sleeved on the peripheral part of the gland II guide rail (16) and is respectively propped against the bottom surface of the gland I (11) and the top surface of the gland II (18).
2. A bag house dual gland bypass valve according to claim 1 wherein the drive means (6) is a motor and reducer.
3. The built-in dual gland type bypass valve of the bag type dust collector as claimed in claim 1, wherein the lead screw (9) passes through a lead screw nut (14), and the lead screw nut (14) is abutted against the top surface and the bottom surface of the inner part of the gland I (11).
4. The built-in dual-gland bypass valve of the bag type dust collector as claimed in claim 1, wherein the bottom of the gland II guide rail (16) is provided with a guide rail end seal (17).
5. The bag collector built-in dual gland type bypass valve according to claim 1, wherein a gland I sealing gasket (12) is pasted on the outer contact surface of the gland I (11), a support sealing gasket I (13) is pasted on the inner contact surface of a gland I support (22), and a support sealing gasket II (21) is pasted on the inner contact surface of a gland II support (23).
6. The bag house dual gland bypass valve according to claim 1 wherein said gland ii guide rails (16) are fixed below gland i (11).
7. The bag house dual gland bypass valve of claim 1 wherein the lead screw (9) is a fine lead screw.
8. The built-in double-gland bypass valve of the bag type dust collector as claimed in claim 5, wherein when the bypass valve is in a closed state, the gland I (11) is tightly pressed with the gland I support (22) through the gland I sealing gasket (12) and the support sealing gasket I (13), and the gland II (18) is tightly pressed with the gland II support (23) through the support sealing gasket II (21).
9. The bag collector built-in double gland type bypass valve according to claim 5, wherein the gland I sealing gasket (12), the support sealing gasket I (13) and the support sealing gasket II (21) are all high temperature resistant PTFE needle felt gaskets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474191.6U CN212651491U (en) | 2020-04-03 | 2020-04-03 | Built-in double-gland type bypass valve of bag type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474191.6U CN212651491U (en) | 2020-04-03 | 2020-04-03 | Built-in double-gland type bypass valve of bag type dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212651491U true CN212651491U (en) | 2021-03-05 |
Family
ID=74766252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020474191.6U Active CN212651491U (en) | 2020-04-03 | 2020-04-03 | Built-in double-gland type bypass valve of bag type dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212651491U (en) |
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2020
- 2020-04-03 CN CN202020474191.6U patent/CN212651491U/en active Active
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