CN216769452U - Mechanical descaling synergistic device of fire-tube type heating furnace - Google Patents
Mechanical descaling synergistic device of fire-tube type heating furnace Download PDFInfo
- Publication number
- CN216769452U CN216769452U CN202122195014.1U CN202122195014U CN216769452U CN 216769452 U CN216769452 U CN 216769452U CN 202122195014 U CN202122195014 U CN 202122195014U CN 216769452 U CN216769452 U CN 216769452U
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- scale
- heating furnace
- scale scraping
- chain
- component
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 42
- 230000002195 synergetic effect Effects 0.000 title abstract description 5
- 238000007790 scraping Methods 0.000 claims abstract description 66
- 125000006850 spacer group Chemical group 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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Abstract
The utility model aims to provide a mechanical descaling synergistic device of a fire tube type heating furnace, which is arranged in the heating furnace and is used for periodically removing scale deposits on the upper part of a fire tube of the heating furnace and improving the heat efficiency of the heating furnace. The device comprises a scale scraping part, a chain wheel part and a driving part, wherein the scale scraping part comprises scale scraping blades and other parts and is arranged on the upper parts of two fire tubes of the heating furnace, and the scale scraping part rolls and scrapes on the upper parts of the two fire tubes under the power transmission of the driving part and the chain traction of the chain wheel part to remove scale and sediment. The device utilizes the simple chain to drag the scale scraping part, and hard objects on the surface of the fire tube can roll over the scale scraping part in the scale scraping process, so that the scale scraping part cannot be stuck; secondly, scrape dirty part main part and pair the installation on scraping dirty axle for a plurality of spacer rings and scrape dirty blade, lift off fastening nut, just can take off every and scrape dirty blade, change and maintenance clearance easily.
Description
Technical Field
The utility model relates to a mechanical descaling synergistic device of a fire tube type heating furnace.
Background
The fire tube type heating furnace is a horizontal heating furnace and is commonly applied in the petroleum industry. The flame of the fire tube type heating furnace is combusted in a fire tube in the furnace, and the generated heat is transferred to the liquid medium in the outer heating furnace shell through a metal wall of the fire tube. Because the fire tube diameter of the fire tube type heating furnace is larger, impurities in heated mediums such as petroleum are easy to deposit on the upper surface of the fire tube to form a scale deposit layer, so that the heating efficiency of the fire tube is reduced, and even accidents such as fire tube burning-through leakage and the like are caused.
In order to improve the thermal efficiency of the fire tube type heating furnace, it is necessary to periodically remove the scale deposit on the upper surface of the fire tube. At present, there are some mechanical descaling devices for fire-barrel type heating furnaces, such as: the CN106091800A automatic descaling device for the oilfield fire tube can remove the scale deposit on the upper surface of the fire tube. However, these descaling devices are driven by complex structures such as gears, the motion track of the descaling part is fixed, and hard objects cannot pass through the descaling device in the descaling process, so that the descaling device is easy to be stuck; moreover, the dirt scraping component is difficult to disassemble and clean.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the utility model provides a mechanical descaling synergistic device of a fire tube type heating furnace, which is dragged by a chain with a simple structure, and hard objects on the surface of a fire tube can roll over the fire tube in the descaling process without being blocked; in addition, the scale scraping component of the device is easy to disassemble and clean.
The technical scheme of the utility model is as follows: the device comprises a scale scraping component, a chain wheel component and a driving component.
The scale scraping component comprises: 2 groups of scale scraping blades, 2 groups of spacer rings, 2 copper bearings, 1 scale scraping shaft and 1 bracket; the descaling blades are circular rings formed by cutting stainless steel sheets, the diameters of the descaling blades are different, and outer edge cutting seams are twisted by a certain angle to form a blade shape with a certain width for cutting and scraping scale deposits on the upper part of the fire tube; the separating ring is used for separating the scale scraping blades, is arranged on the scale scraping shaft in a matched mode with the scale scraping blades, is fastened through nuts to form two groups of revolution bodies with thick ends and thin middle parts, and the shapes of the revolution bodies are matched with the arc surface of the upper portion of the fire tube; the support is formed by assembling and welding 1 cylinder, 2 vertical plates and 4 horizontal rib plates, the copper bearings are installed at two ends of an inner hole of the cylinder of the support, and small round holes are machined in the vertical plates of the support and used for connecting chains of the chain wheel component.
The scale scraping component is transversely arranged on the upper parts of the two fire tubes in the heating furnace, the axes of the scale scraping component and the fire tube axes are staggered and vertical, and the bracket of the scale scraping component drives the two groups of scale scraping blades of the scale scraping component to roll and scrape on the upper parts of the two fire tubes of the heating furnace under the traction of the chain wheel component, so that scale deposits are removed.
The sprocket assembly includes: 2 supports, 2 copper bearings, 2 short shafts, 2 chain wheels and 1 chain; the supports are respectively welded and installed on the shells at the front part and the rear part between the two fire tubes in the heating furnace and are used for supporting and installing the chain wheel; the chain wheel is arranged on the support and used for driving the chain to transmit; and two ends of the chain are connected to the bracket and are used for driving the scale scraping component to perform reciprocating translational motion.
The driving part includes: 1 stepping motor, 1 set of controller, 1 sealing seat, 2 sealing rings, 2 couplers and 1 long shaft; the stepping motor is matched with the controller and is arranged outside the heating furnace, the number of positive and negative rotation turns is preset through the controller, and the stepping motor drives the chain to perform reciprocating translation motion through transmission of various shafts, chain wheels and other components; the seal receptacle welds on the casing of heating furnace, and 2 sealing washers of hole installation are used for sealed motor shaft.
The utility model has the following beneficial effects: firstly, the device drags the scale scraping part by using a simple chain, and hard objects on the surface of the fire tube can roll over the scale scraping part in the process of scale scraping, so that the scale scraping part cannot be stuck; secondly, scrape dirty part main part and pair the installation on scraping dirty axle for a plurality of spacer rings and scrape dirty blade, lift off fastening nut, just can take off every and scrape dirty blade, change and maintenance clearance easily.
Drawings
FIG. 1 is a front view in section of the scale removal apparatus mounted to a torch-type heating furnace.
FIG. 2 is a left side view in cross-section of the scale removal device mounted to a torch furnace.
Fig. 3 is a front view of the descaling device.
Fig. 4 is a cut-away top view of the descaling device.
Fig. 5 is a cross-sectional top view of the scraping means.
Fig. 6 is a cut-away top view of the holder of the scraper member.
Fig. 7 is a perspective view of a scraper blade of the scraper member.
FIG. 8 is a cut-away top view of the drive member and sprocket member.
In the figure: 1. heating furnace fire tubes; 2. heating a furnace smoke tube; 3. heating the furnace shell; 4. a scale scraping component; 401. a scale scraping blade; 402. a spacer ring; 403. a copper bearing; 404. a scraping shaft; 405. a support; 5. a sprocket member; 501. a support; 502. a copper bearing; 503. a short axis; 504. a sprocket; 505. a chain; 6. a drive member; 601. a stepper motor and a controller; 602. a sealing seat; 603. a seal ring; 604. a coupling; 605. a long axis.
Detailed Description
The utility model will be further explained with reference to the accompanying drawings 1-8:
as shown in fig. 3 and 4, the apparatus of the present invention comprises: the device comprises a scale scraping component, a chain wheel component and a driving component.
As shown in fig. 5 to 7, the scale scraping member includes: 2 groups of scale scraping blades, 2 groups of spacer rings, 2 copper bearings, 1 scale scraping shaft and 1 bracket; the descaling blades are circular rings formed by cutting stainless steel sheets, the diameters of the descaling blades are different, and outer edge cutting seams are twisted by a certain angle to form a blade shape with a certain width for cutting and scraping scale deposits on the upper part of the fire tube; the separating ring is used for separating the scale scraping blades, is arranged on the scale scraping shaft in a matched mode with the scale scraping blades, is fastened through nuts to form two groups of revolution bodies with thick ends and thin middle parts, and the shapes of the revolution bodies are matched with the arc surface of the upper portion of the fire tube; the support is formed by assembling and welding 1 cylinder, 2 vertical plates and 4 horizontal rib plates, the copper bearings are installed at two ends of an inner hole of the cylinder of the support, and small round holes are machined in the vertical plates of the support and used for connecting chains of the chain wheel component.
As shown in fig. 1 and 2, the scale scraping component is transversely installed at the upper parts of the two fire tubes in the heating furnace, the axes of the scale scraping component and the fire tubes are staggered and perpendicular, and the bracket of the scale scraping component drives the two sets of scale scraping blades of the scale scraping component to roll and scrape on the upper parts of the two fire tubes of the heating furnace under the traction of the chain wheel component, so as to remove scale deposits.
As shown in fig. 4 and 8, the sprocket assembly includes: 2 supports, 2 copper bearings, 2 short shafts, 2 chain wheels and 1 chain; the supports are respectively welded and installed on the shells at the front part and the rear part between the two fire tubes in the heating furnace and are used for supporting and installing the chain wheel; the chain wheel is arranged on the support and used for driving the chain to transmit; and two ends of the chain are connected to the bracket and are used for driving the scale scraping component to do reciprocating translational motion.
As shown in fig. 8, the driving part includes: 1 stepping motor, 1 set of controller, 1 sealing seat, 2 sealing rings, 2 couplers and 1 long shaft; the stepping motor is matched with the controller and is arranged outside the heating furnace, the number of positive and negative rotation turns is preset through the controller, and the stepping motor drives the chain to perform reciprocating translation motion through transmission of various shafts, chain wheels and other components; the seal receptacle welds on the casing of heating furnace, and 2 sealing washers of hole installation are used for sealed motor shaft.
As shown in fig. 1 and 2, the working principle of the device of the present invention is as follows: after the descaling device is installed in the fire tube type heating furnace, forward and reverse rotation turns are set in advance through the controller according to the length of a fire tube of the heating furnace, forward and reverse rotation of the stepping motor is controlled, and reciprocating motion of the scale scraping component is achieved. When descaling is needed, the controller is started, the stepping motor drives the descaling components to move in a translation manner on the upper part of the fire tube of the heating furnace by driving the chains through the transmission of various shafts, chain wheels and other components, and descaling is carried out; when the stepping motor drives the scale scraping component to move to one end of a fire tube of the heating furnace, the controller controls the circuit to be reversed, the stepping motor rotates reversely to drive the scale scraping component to move reversely, and therefore reciprocating movement of the scale scraping component on the upper portion of the fire tube of the heating furnace is achieved, and scale removal is completed.
Claims (1)
1. The utility model provides a mechanical scale removal increase device of fire tube heating furnace which characterized in that: the device comprises a scale scraping component, a chain wheel component and a driving component;
wherein the scale scraping component comprises: 2 groups of scale scraping blades, 2 groups of spacer rings, 2 copper bearings, 1 scale scraping shaft and 1 bracket; the descaling blades are circular rings formed by cutting stainless steel sheets, the diameters of the descaling blades are different, and outer edge cutting seams are twisted by a certain angle to form a blade shape with a certain width for cutting and scraping scale deposits on the upper part of the fire tube; the separating ring is used for separating the scale scraping blades, is arranged on the scale scraping shaft in a matched mode with the scale scraping blades, is fastened through nuts to form two groups of revolution bodies with thick ends and thin middle parts, and the shapes of the revolution bodies are matched with the arc surface of the upper portion of the fire tube; the bracket is formed by assembling and welding 1 cylinder, 2 vertical plates and 4 horizontal rib plates, the copper bearings are installed at two ends of an inner hole of the cylinder of the bracket, and small round holes are processed on the vertical plates of the bracket and used for connecting chains of the chain wheel component;
the scale scraping component is transversely arranged at the upper parts of the two fire tubes in the heating furnace, the axes of the scale scraping component and the axes of the fire tubes are staggered and vertical, and the bracket of the scale scraping component drives the two groups of scale scraping blades of the scale scraping component to roll and scrape on the upper parts of the two fire tubes of the heating furnace under the traction of the chain wheel component so as to remove scale deposits;
the sprocket assembly includes: 2 supports, 2 copper bearings, 2 short shafts, 2 chain wheels and 1 chain; the supports are respectively welded and installed on the shells at the front part and the rear part between the two fire tubes in the heating furnace and are used for supporting and installing the chain wheel; the chain wheel is arranged on the support and used for driving the chain to transmit; two ends of the chain are connected to the bracket and used for driving the scale scraping component to perform reciprocating translational motion;
the driving part includes: 1 stepping motor, 1 set of controller, 1 sealing seat, 2 sealing rings, 2 couplers and 1 long shaft; the stepping motor is matched with the controller and is arranged outside the heating furnace, the number of positive and negative rotation turns is preset through the controller, and the stepping motor drives the chain to perform reciprocating translational motion through the transmission of the long shaft and the chain wheel component; the seal receptacle welds on the casing of heating furnace, and 2 sealing washers of hole installation are used for sealed motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122195014.1U CN216769452U (en) | 2021-09-11 | 2021-09-11 | Mechanical descaling synergistic device of fire-tube type heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122195014.1U CN216769452U (en) | 2021-09-11 | 2021-09-11 | Mechanical descaling synergistic device of fire-tube type heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216769452U true CN216769452U (en) | 2022-06-17 |
Family
ID=81954646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122195014.1U Expired - Fee Related CN216769452U (en) | 2021-09-11 | 2021-09-11 | Mechanical descaling synergistic device of fire-tube type heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216769452U (en) |
-
2021
- 2021-09-11 CN CN202122195014.1U patent/CN216769452U/en not_active Expired - Fee Related
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| 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: 20220617 |