CN215863502U - Coal feeder observation hole device with double-layer structure - Google Patents
Coal feeder observation hole device with double-layer structure Download PDFInfo
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- CN215863502U CN215863502U CN202120980633.9U CN202120980633U CN215863502U CN 215863502 U CN215863502 U CN 215863502U CN 202120980633 U CN202120980633 U CN 202120980633U CN 215863502 U CN215863502 U CN 215863502U
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Abstract
The embodiment of the utility model discloses a coal feeder observation hole device with a double-layer structure, which is characterized by comprising the following components: the device comprises a cylindrical bracket, a flip type observation window, a movable observation window and an air supply pipeline; the cylindrical bracket is of a cylindrical tubular structure, and an accommodating groove for accommodating the movable observation window is formed in the cylindrical bracket; the flip type observation window is arranged at the front end of the cylindrical bracket in a turnover mode through a movable hinge; the movable observation window is inserted into the accommodating groove; a sealed cavity is formed between the flip type observation window and the movable type observation window, the air supply pipeline is arranged on the side wall of the cylindrical support, and the air supply pipeline is communicated to the sealed cavity. The utility model adopts a double-layer observation window structure, ensures that the lens does not influence the safe operation of equipment in the clearance cleaning and replacing period, has the technical condition of single-layer observation window operation, and has the advantages of large observation visual field and simple disassembly and replacement.
Description
Technical Field
The utility model relates to the field of power plant equipment, in particular to a coal feeder observation hole device with a double-layer structure.
Background
The coal feeder observation hole can be used for operators to monitor the internal working condition of the operation of the coal feeder in real time, and comprises mechanical structures such as an internal belt conveyor, a cleaning chain and the like, and the coal quality of the coal feeder can be confirmed. In addition, internal defects of the coal feeder can be found in time to avoid further deterioration of the operation condition, such as blocking of large coal of the coal feeder, deviation of a belt, breakage of the belt, serious water brought by coal and the like.
However, the coal feeder is full of pulverized coal, so that the operation environment is severe, and the observation hole of the coal feeder is often polluted. Under the condition of the prior art, the coal feeder observation hole with the function of online cleaning is generally adopted, and the cleaning mode is that the brush (the brush head faces the mirror surface) on the inner side of the lens is driven to clean manually by rotating the external knob of the mirror surface of the coal feeder observation hole. On one hand, the coal dust is thin, the coal dust can be accumulated in gaps of the rotating component to cause the jamming of the component, and the brush cannot rotate to clean the observation mirror surface; on the other hand, if the humidity of the pulverized coal is high and the pulverized coal is stuck on the mirror surface, the brush cannot effectively clean the mirror surface, and the visual effect is not good; finally, the knob and the brush occupy a certain space, so that partial sight is shielded, and the visual field range is structurally limited. If the observation hole of the coal feeder is opened on line for cleaning, a large amount of coal powder can be exposed, the operation production environment is polluted, and meanwhile, the air leakage of a powder preparation system is increased, so that the safe combustion of a boiler is influenced. Therefore, the dirt condition of the observation hole of the coal feeder is treated in a centralized manner after the coal feeder is frequently stopped and isolated, but the monitoring of the operation condition of the coal feeder is influenced, and the effect of the observation hole is lost.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an embodiment of the present invention provides a coal feeder observation hole device with a double-layer structure, including: the device comprises a cylindrical support, a flip type observation window, a movable observation window and an air supply pipeline.
The cylindrical bracket is of a cylindrical tubular structure, and an accommodating groove for accommodating the movable observation window is formed in the cylindrical bracket; the flip type observation window is arranged at the front end of the cylindrical bracket in a turnover mode through a movable hinge; the movable observation window is inserted into the accommodating groove of the cylindrical bracket; a sealed cavity is formed between the flip type observation window and the movable type observation window, the air supply pipeline is arranged on the side wall of the cylindrical support, and the air supply pipeline is connected to the sealed cavity in a conduction mode.
The flip type observation window comprises a flip type window lens and a fixed package frame, the flip type window lens is embedded and fixed on the fixed package frame, and the lower end of the flip type observation window is provided with a wing-shaped bolt for fixedly locking the flip type observation window.
Wherein, portable observation window includes fixed bolster, removal window lens and covers the mounting, the fixed bolster includes the both sides piece, the gomphosis of both sides piece fixed bolster is fixed removal window lens, the fixed bolster is even taken removal window lens transversely insert the nestification in cover in the mounting, portable observation window top is equipped with the fixation nut who is used for fixing.
The side edge of the fixed support of the movable observation window is inwards recessed to form a key groove, and a key protrusion matched with and limited by the key groove is convexly arranged on the side edge of the containing groove of the cylindrical support.
The top of the covering fixing piece is convexly provided with a lifting block, and the front position and the rear position of the covering fixing piece are provided with sealing gaskets in an attaching mode.
The cylindrical support is fixed to a coal feeder side plate through a fixing bolt.
The embodiment of the utility model has the following beneficial effects:
1. the double-layer observation window structure is used, the safe operation of the equipment is not affected in the clearance period of cleaning and replacing the lens, and the single-layer observation window has the operation technical conditions.
2. Through the key convex and the key groove structure, the fastening and sealing of the components are realized, and the movable observation window is convenient to clean and replace on line.
3. The sealed cavity between the double-layer observation windows adopts clean air sources such as air for instruments and the like as sealed air sources, so that the coal powder of the coal feeder cannot leak outside through the movable observation windows.
4. The knob and the cleaning brush on the mirror surface are omitted, and the observation visual field is increased.
5. Fix through fixing bolt, have and dismantle convenient, install simple advantage.
Drawings
FIG. 1 is a front elevational view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a side view of the mobile viewing window and the receiving recess of the present invention;
FIG. 4 is a front view of the portable observation window of the present invention;
figure 5 is a schematic view of the construction of the present novel covering fixture.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a double-layer coal feeder observation hole device includes: the device comprises a cylindrical bracket 1, a flip type observation window 2, a movable observation window 3 and an air supply pipeline 4.
The cylindrical support 1 is of a cylindrical tubular structure, and an accommodating groove 11 for accommodating the movable observation window is formed in the cylindrical support 1; the flip type observation window 2 is arranged at the front end of the cylindrical bracket 1 in a flip manner through a movable hinge 21; the movable observation window 3 is inserted into the accommodating groove 11 of the cylindrical bracket; a sealed cavity is formed between the flip type observation window 2 and the movable type observation window 3, the air supply pipeline 4 is arranged on the side wall of the cylindrical support 1, and the air supply pipeline is connected to the sealed cavity in a conduction mode.
As shown in figure 1, the coal feeder observation hole device is arranged at a coal feeder side plate through the cylindrical bracket 1 and is fixed through a bolt 12, so that the coal feeder observation hole device has the advantages of being easy to install and disassemble.
The structure of the flip type observation window:
as shown in fig. 2, the flip-type observation window 2 comprises a flip-type window lens 22 and a fixed package frame 23, the flip-type window lens 22 is embedded and fixed in the fixed package frame 23, and the flip-type observation window 2 is arranged at the front end of the cylindrical bracket 1 through the movable hinge 21 in an overturning manner.
Structure of the mobile observation window:
as shown in fig. 3 and 4, the movable observation window 3 includes a fixed bracket 31, a movable window lens 32 and a covering fixing member 33, the fixed bracket 31 includes two side plates, the two side plate fixed brackets 31 are embedded and fixed with the movable window lens 32, the fixed bracket 31 with the movable window lens 32 is transversely inserted and nested in the covering fixing member 33, and the movable observation window 3 is longitudinally inserted and arranged in the accommodating groove 11 of the cylindrical bracket.
Referring to fig. 3, the side of the fixed bracket 31 of the mobile observation window is recessed inwards to form a key groove 311, referring to fig. 2, the side of the accommodating groove 11 of the cylindrical bracket 1 is raised to form a key protrusion 111 which is matched with the key groove 311 for limiting, and in the process of installing the mobile observation window 3, the mobile observation window can be ensured to be accurately installed in the accommodating groove through the matching of the key protrusion 111 and the key groove 311, and the mobile observation window plays a role in limiting and fixing.
Sealing of the chamber between the double mirror:
please refer to fig. 2, a sealed cavity is formed between the flip type observation window 2 and the movable observation window 3, an air supply pipeline 4 is pre-buried in the sealed cavity section of the cylindrical bracket 1, the air supply pipeline 4 is connected to the sealed cavity in a conduction manner, the air supply pipeline 4 is used for adjusting air supply pressure and making the air supply pressure slightly larger than the internal air pressure of the coal feeder, and the pulverized coal is ensured not to pass through.
Structure of the covering fixture:
as shown in fig. 5, the transverse section of the covering fixing member 33 is provided with a groove 333 capable of being matched with the fixing bracket 31, the fixing bracket 31 of the mobile observation window 3 is integrally and transversely inserted into the groove 333 of the covering fixing member after the mobile window lens 32 is embedded and fixed, so as to form an integral mobile observation window, and the top of the covering fixing member is convexly provided with a lifting block 331 for facilitating the installation and the disassembly of the mobile observation window.
This feeder observation hole device's more preferred setting:
preferably, a fixing nut 34 for fixing is arranged at the top of the movable observation window.
Preferably, the lower end of the flip-type observation window is provided with a wing bolt 24 for fixedly locking the flip-type observation window.
Preferably, a sealing gasket 332 is disposed on a bottom surface of the covering fixing member contacting the receiving groove.
The use principle is as follows:
when the coal feeder normally operates, the flip type observation window can be kept in a closed state in order to confirm the coal quality condition and briefly check the coal feeder. If the internal operation conditions of the coal feeder including structures such as a belt, a cleaning chain and the like need to be checked in detail, the external flip type observation window can be opened, the movable observation window is used for checking, and a larger and clearer observation visual field can be obtained.
In the operation process, if the movable observation window lens appears dirty or damaged, the fixing bolt can be disassembled, the movable observation window is pulled out, the fixing support and the observation window lens are transversely pulled out from the covering fixing piece, the movable observation window is recombined into the movable observation window after the movable mirror surface is cleaned or the lens is replaced, and then the insertion process is completed.
In actual use, when any one side of the observation window is dirty or damaged, the other observation window can be independently used, and normal operation of the equipment is ensured.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the utility model are covered in the protection scope of the utility model.
Claims (6)
1. The utility model provides a bilayer structure's feeder inspection hole device which characterized in that includes: the device comprises a cylindrical support (1), a flip type observation window (2), a movable observation window (3) and an air supply pipeline (4); the cylindrical support (1) is of a cylindrical tubular structure, and an accommodating groove (11) for accommodating the movable observation window is formed in the cylindrical support (1); the flip type observation window (2) is arranged at the front end of the cylindrical bracket (1) in a flip manner through a movable hinge (21); the movable observation window (3) is inserted into the containing groove (11) of the cylindrical bracket; a sealed cavity is formed between the flip type observation window (2) and the movable type observation window (3), the air supply pipeline (4) is arranged on the side wall of the cylindrical support (1), and the air supply pipeline is connected to the sealed cavity in a conduction mode.
2. The coal feeder observation hole device with the double-layer structure as claimed in claim 1, wherein the flip-type observation window (2) further comprises a flip-type window lens (22) and a fixed bag frame (23), the flip-type window lens (22) is embedded in the fixed bag frame (23), and the flip-type observation window (2) is further provided with a wing bolt (24) for fixedly locking the flip-type observation window (2).
3. The double-layer structure coal feeder observation hole device as claimed in claim 1, wherein the movable observation window (3) comprises a fixed bracket (31), a movable window lens (32) and a covering fixing piece (33), the fixed bracket (31) comprises two side plates, the two side plate fixed brackets (31) are embedded and fixed with the movable window lens (32), the fixed bracket (31) with the movable window lens is transversely inserted and nested in the covering fixing piece (33), and a fixed nut (34) for fixing is arranged at the top of the movable observation window.
4. The double-layer structure coal feeder observation hole device as claimed in claim 3, wherein the side of the fixed bracket (31) of the movable observation window (3) is recessed inwards to form a key groove (311), and the side of the receiving groove (11) of the cylindrical bracket is raised to form a key protrusion (111) which is matched with and limited by the key groove.
5. The double-deck coal feeder observation hole device as claimed in claim 3, wherein the top of the cover fixing member (33) is protruded with a lifting block (331), and the bottom surface of the cover fixing member contacting the receiving groove is provided with a sealing gasket (332).
6. The double-deck coal feeder observation hole device as claimed in claim 1, wherein the cylindrical bracket is fixed to the side plate of the coal feeder by a fixing bolt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120980633.9U CN215863502U (en) | 2021-05-08 | 2021-05-08 | Coal feeder observation hole device with double-layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120980633.9U CN215863502U (en) | 2021-05-08 | 2021-05-08 | Coal feeder observation hole device with double-layer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215863502U true CN215863502U (en) | 2022-02-18 |
Family
ID=80316172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120980633.9U Active CN215863502U (en) | 2021-05-08 | 2021-05-08 | Coal feeder observation hole device with double-layer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215863502U (en) |
-
2021
- 2021-05-08 CN CN202120980633.9U patent/CN215863502U/en active Active
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