CN210461757U - Adjustable flow device of telescopic pipeline - Google Patents
Adjustable flow device of telescopic pipeline Download PDFInfo
- Publication number
- CN210461757U CN210461757U CN201921576236.4U CN201921576236U CN210461757U CN 210461757 U CN210461757 U CN 210461757U CN 201921576236 U CN201921576236 U CN 201921576236U CN 210461757 U CN210461757 U CN 210461757U
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- circular ring
- driving arm
- driving
- pipeline
- cloth sleeve
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Abstract
The utility model relates to a telescopic pipeline flow-adjustable device, which comprises a pipeline, a telescopic component, a driving component and a bracket; wherein: the telescopic assembly comprises a first circular ring, a second circular ring, a first driving arm, a second driving arm and a cloth sleeve; one ends of the first driving arm and the second driving arm are hinged together, the other ends of the first driving arm and the second driving arm are correspondingly hinged on the first circular ring and the second circular ring, and the circular array is provided with three to ten groups; the cloth sleeve is sleeved in the space enclosed by the first driving arm and the second driving arm array, two ends of the cloth sleeve are fixedly wrapped on the first circular ring and the second circular ring, the distance between the first circular ring and the second circular ring is changed, the inward contraction degree of the hinged ends of the first driving arm and the second driving arm can be driven, and the waist of the cloth sleeve is driven to contract so as to change the cross section of a pipeline and achieve the purpose of adjusting the flow and the flow rate.
Description
The technical field is as follows:
the utility model belongs to boiler or sintering machine equipment field, in particular to adjustable flow device of telescopic pipeline, especially can be according to boiler or sintering machine load condition, adjust the scheme that the air velocity was guaranteed to the pipeline cross-section.
Background art:
in the actual operation of a boiler or a sintering machine, the load of the boiler or the sintering machine can change according to external conditions, and by taking a dry desulfurization absorption tower as an example, when the boiler or the sintering machine runs at full load, the bottom flow velocity can meet the requirement of no ash falling, and smoke does not need to be supplemented; when the low-load operation is carried out, the flow velocity at the bottom of the absorption tower is low, the circulating flue needs to be supplemented with the flue gas to return to the bottom of the absorption tower, the high flow velocity at the bottom of the absorption tower is ensured, the ash falling phenomenon is avoided, and the energy consumption of the flue gas for supplementing the circulating flue is inevitable; in addition, when equipment is purchased, the load margin is considered, so that the equipment operates at the optimal performance level, and the optimal operation level of the equipment is usually in the range of 75% -80% of the full load; for this reason, it is necessary to consider that an adjustable flow device is provided at the bottom of the tower.
Patent application No. 201710065047X discloses a precise adjustable gas flow nozzle, relating to the field of air flow adjustment; the device comprises a device shell, an upper end cover, a first mounting support, a front adjusting sealing plate, a sealing gasket, a nozzle adjusting mechanism and a pressing sealing mechanism; the upper end cover is fixedly arranged on the outer edge of the stepped groove of the equipment shell; the nozzle adjusting mechanism is fixedly arranged in the middle of the top of the upper end cover, the compression sealing mechanism is fixedly arranged at one end of the top of the upper end cover, a front adjusting plate is fixed at the bottom end of a transmission screw rod of the compression sealing mechanism, a rear adjusting plate is fixedly arranged at the bottom end of the transmission screw rod of the nozzle adjusting mechanism, one end of the front adjusting plate is contacted with the sealing gasket, one end of the rear adjusting plate is contacted with the other end of the front adjusting plate, and the other end of the rear adjusting plate is contacted with the first mounting support, namely is fixedly connected with the first mounting support through a first transmission; and one end of the front adjusting plate, which is contacted with the sealing gasket, is of an arc structure, and is abutted against the sealing gasket by virtue of the arc end to form dynamic sealing. The adjustable gas stream nozzle forms a triangular adjusting mechanism through a front adjusting plate and a rear adjusting plate, so that sealing structures at two bottom corners of a triangle are too complex, adaptive changes of positions and angles of the two corners are also required to be considered, and the positioning is also complex.
The invention content is as follows:
the utility model aims at designing a through flexible drive waist degree of contraction to this adjustable flow device of telescopic pipeline of adjusting the pipeline cross-section.
The utility model discloses technical scheme realizes like this: a telescopic pipeline flow-adjustable device comprises a pipeline, a telescopic assembly, a driving assembly and a bracket; the method is characterized in that:
the pipeline is used for conveying fluid, and the cross section of the pipeline is of a circular structure;
the telescopic assembly comprises a first circular ring, a second circular ring, a first driving arm, a second driving arm and a cloth sleeve;
one ends of the first driving arm and the second driving arm are hinged together, and the other ends of the first driving arm and the second driving arm are correspondingly hinged on the first circular ring and the second circular ring; three to ten first driving arms and second driving arms form a circular array and are distributed on the first circular ring and the second circular ring; the cloth sleeve is sleeved in a space enclosed by the first driving arm array and the second driving arm array, two ends of the cloth sleeve are fixedly wrapped on the first circular ring and the second circular ring, and the distance between the first circular ring and the second circular ring is changed to drive the inward shrinkage degree of the hinged ends of the first driving arm and the second driving arm and drive the shrinkage and shrinkage adjustment of the waist part of the cloth sleeve; the second circular ring is locked on the pipeline or the bracket, and the first circular ring can axially move relative to the pipeline;
the driving assembly is used for driving the first circular ring to do axial movement in the pipeline so as to adjust the effective section of the cloth sleeve for conveying fluid;
the bracket is fixed on the outer side of the pipeline and used for supporting and fixing the driving assembly.
One end shaft of the first driving arm is positioned on the first circular ring, one end shaft of the second driving arm is positioned on the second circular ring, and a linkage chain is arranged between the hinge points of the adjacent first driving arm and the second driving arm.
The driving component is an electric push rod, and the motion direction of the electric push rod is parallel to the axial direction of the pipeline; after a cantilever locked at the driving end of the electric push rod penetrates through a reserved slotted hole of the pipeline, the end part of the cantilever is locked on the first circular ring; a pair of electric push rods is arranged at the radial symmetrical position of the first circular ring, and the pair of electric push rods can work synchronously.
The utility model has the characteristics of ingenious conception, reasonable design, smooth action and good air tightness; by means of the relative motion of the first circular ring and the second circular ring, the first driving arm and the second driving arm produce contraction motion in the hinged point to change the cross section of the pipeline and regulate the flow rate and flow speed.
Description of the drawings:
the present invention will be further explained with reference to the following specific drawings:
FIG. 1 is a schematic view of a telescopic pipe flow-adjustable device
FIG. 2 is an exploded view of the adjustable flow device for a retractable tube
FIG. 3 is a schematic view of the relationship between the retractable assembly and the driving assembly
Wherein
1-pipeline 11-reserved slotted hole 2-support 3-telescopic assembly
31-first ring 32-second ring 33-first drive arm 34-second drive arm
35-cloth sleeve 36-associated chain 4-drive assembly 41-drive end
42-cantilever
The specific implementation mode is as follows:
referring to fig. 1, 2 and 3, the adjustable flow device of the telescopic pipe comprises a pipe 1, a bracket 2, a telescopic assembly 3 and a driving assembly 4; wherein:
the pipeline 1 is used for conveying fluid, and the cross section of the pipeline 1 is of a circular structure.
And the bracket 2 is fixed on the outer side of the pipeline 1 and used for supporting and fixing the driving assembly 4 and other parts needing to be supported and positioned.
The telescopic assembly 3 comprises a first circular ring 31, a second circular ring 32, a first driving arm 33, a second driving arm 34 and a cloth sleeve 35; one ends of the first driving arm 33 and the second driving arm 34 are hinged together, and the other ends are correspondingly hinged on the first circular ring 31 and the second circular ring 32; three to ten first driving arms 33 and ten second driving arms 34 are arranged in a circular array and distributed on the first circular ring 31 and the second circular ring 32, and the number of the driving arms is determined according to the caliber of the pipeline, so that the minimum requirement of completely supporting the cloth sleeve 35 is met. Further, one end of the first driving arm 33 is axially positioned on the first circular ring 31, one end of the second driving arm 34 is axially positioned on the second circular ring 32, and an associated chain 36 is disposed between the hinge points of the adjacent first driving arm 33 and second driving arm 34. The drive arms are restrained by the associated chains 36 to avoid side-to-side deflection, and on the other hand can be supported outside the cloth sleeve 35 to resist air pressure. The associated chain 36 may also be replaced with a bungee cord or tension spring, etc.
The cloth sleeve 35 is sleeved in the space enclosed by the arrays of the first driving arm 33 and the second driving arm 34, and two ends of the cloth sleeve are fixedly wrapped on the first circular ring 31 and the second circular ring 32 so as to keep certain air tightness; the second ring 32 is locked on the pipe 1 or the bracket 2, and the first ring 31 can move axially relative to the pipe, so as to adjust the waist zooming action of the cloth sleeve 35.
The driving assembly 4 is used for driving the first circular ring 31 to make axial movement in the pipeline so as to adjust the effective cross section of the fluid conveyed by the cloth sleeve 35; that is, the distance between the first circular ring 31 and the second circular ring 32 can be changed, the retraction degree of the hinged ends of the first driving arm 33 and the second driving arm 34 can be changed, and the waist of the cloth sleeve 35 can be adjusted in a zooming way, so that the adjustment of the effective fluid conveying section can be realized.
The driving component 4 is preferably an electric push rod, and the moving direction of the electric push rod is parallel to the axial direction of the pipeline 1; after the cantilever 42 locked at the driving end 41 of the electric push rod passes through the preformed slot 11 of the pipeline, the end part is locked on the first circular ring 31; a pair of electric push rods are arranged at the radial symmetrical positions of the first circular ring 31, and the pair of electric push rods work synchronously, so that the single driving circular ring is prevented from being unbalanced in stress.
In addition, the driving assembly 4 can also select two sets of screw nuts which are separately arranged at radial symmetrical positions, and the two screw rods are synchronously driven by a guide shaft in transmission connection with a motor, such as through bevel gear pair transmission.
The electric push rod or linear driver is a standard commercially available kit, and the principle of the electric push rod or linear driver is to convert the rotary motion of the motor into the linear reciprocating motion of the push rod. The reciprocating action can be realized only by controlling the direction of the power supply. The first ring and the second ring can be interchanged without affecting the distance expansion.
Claims (3)
1. A telescopic pipeline flow-adjustable device comprises a pipeline, a telescopic assembly, a driving assembly and a bracket; the method is characterized in that:
the pipeline is used for conveying fluid, and the cross section of the pipeline is of a circular structure;
the telescopic assembly comprises a first circular ring, a second circular ring, a first driving arm, a second driving arm and a cloth sleeve; one ends of the first driving arm and the second driving arm are hinged together, and the other ends of the first driving arm and the second driving arm are correspondingly hinged on the first circular ring and the second circular ring; three to ten first driving arms and second driving arms form a circular array and are distributed on the first circular ring and the second circular ring; the cloth sleeve is sleeved in a space enclosed by the first driving arm array and the second driving arm array, two ends of the cloth sleeve are fixedly wrapped on the first circular ring and the second circular ring, and the distance between the first circular ring and the second circular ring is changed to drive the inward shrinkage degree of the hinged ends of the first driving arm and the second driving arm and drive the shrinkage and shrinkage adjustment of the waist part of the cloth sleeve; the second circular ring is locked on the pipeline or the bracket, and the first circular ring can axially move relative to the pipeline;
the driving assembly is used for driving the first circular ring to do axial movement in the pipeline so as to adjust the effective section of the cloth sleeve for conveying fluid;
the bracket is fixed on the outer side of the pipeline and used for supporting and fixing the driving assembly.
2. The telescopic adjustable flow conduit device of claim 1, wherein: one end shaft of the first driving arm is positioned on the first circular ring, one end shaft of the second driving arm is positioned on the second circular ring, and a linkage chain is arranged between the hinge points of the adjacent first driving arm and the second driving arm.
3. The telescopic adjustable flow conduit device of claim 1, wherein: the driving component is an electric push rod, and the motion direction of the electric push rod is parallel to the axial direction of the pipeline; after a cantilever locked at the driving end of the electric push rod penetrates through a reserved slotted hole of the pipeline, the end part of the cantilever is locked on the first circular ring; a pair of electric push rods is arranged at the radial symmetrical position of the first circular ring, and the pair of electric push rods can work synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921576236.4U CN210461757U (en) | 2019-09-20 | 2019-09-20 | Adjustable flow device of telescopic pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921576236.4U CN210461757U (en) | 2019-09-20 | 2019-09-20 | Adjustable flow device of telescopic pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210461757U true CN210461757U (en) | 2020-05-05 |
Family
ID=70433062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921576236.4U Expired - Fee Related CN210461757U (en) | 2019-09-20 | 2019-09-20 | Adjustable flow device of telescopic pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210461757U (en) |
-
2019
- 2019-09-20 CN CN201921576236.4U patent/CN210461757U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200505 Termination date: 20200920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |