CN214371974U - Heat exchange tube welding seam cleaning device and heat exchange tube welding seam cleaning equipment - Google Patents
Heat exchange tube welding seam cleaning device and heat exchange tube welding seam cleaning equipment Download PDFInfo
- Publication number
- CN214371974U CN214371974U CN202120200357.XU CN202120200357U CN214371974U CN 214371974 U CN214371974 U CN 214371974U CN 202120200357 U CN202120200357 U CN 202120200357U CN 214371974 U CN214371974 U CN 214371974U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- exchange tube
- guide bearing
- welding seam
- cleaning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model relates to a heat exchange tube welding seam cleaning device, heat exchange tube welding seam clean-up equipment, this heat exchange tube welding seam cleaning device include can dismantle the main shaft of being connected with external power source to and the cover is located the main shaft periphery and with the toper emery wheel of heat exchange tube welding seam butt, the cover is located the main shaft periphery and with the direction bearing assembly of the inner wall butt of heat exchange tube. This heat exchange tube welding seam cleaning device simple structure satisfies the narrow and small condition of shell and tube type heat exchanger working space, and is efficient, can clear away the heat exchange tube welding seam fast after connecting external power source, safe and reliable, and work is steady, can not scurry in disorder, has avoided the part departure to hinder the people.
Description
Technical Field
The utility model relates to a heat exchange tube overhauls technical field, especially relates to a heat exchange tube welding seam cleaning device, heat exchange tube welding seam clean-up equipment.
Background
As shown in fig. 1-2, the shell-and-tube heat exchanger has the advantages of high heat exchange efficiency, compact structure, long service life and the like, and is very commonly used in power stations. Common high-low heat exchangers of a conventional island, a moisture separator reheater, a condenser, a steam generator and the like. The shell-and-tube heat exchanger is frequently switched due to various working conditions in the service cycle, and the phenomenon of heat exchange tube fracture can occur after long-term operation and the like. At the moment, the broken heat exchange tube needs to be pulled out, and the phenomenon of collision and abrasion of the surrounding heat exchange tubes is avoided. In the shell-and-tube heat exchanger of the nuclear power station, the heat exchange tube and the tube plate are almost welded, so the welding seam of the heat exchange tube must be removed before tube drawing.
In a shell-and-tube heat exchanger, heat exchange tubes are arranged very densely, and a conventional welding seam polishing mode is to directly remove the heat exchange tubes after a circular grinding head is installed by using an internal grinding machine. In the mode, the grinding head can only be attached to the welding seam in the side direction and cannot be fixed in the working process, so that the inner grinding machine is very easy to flee in the working process, the welding seam or a tube plate is worn, and sometimes the grinding head flies out to hurt people.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a heat exchange tube welding seam cleaning device and heat exchange tube welding seam clean-up equipment.
The utility model provides a technical scheme that its technical problem adopted is: a heat exchange tube weld cleaning device is constructed, and comprises a main shaft detachably connected with an external power source, a conical grinding wheel sleeved on the periphery of the main shaft and abutted to a weld of a heat exchange tube, and a guide bearing assembly sleeved on the periphery of the main shaft and abutted to the inner wall of the heat exchange tube.
Preferably, a limiting bulge is arranged in the middle of the main shaft, and the limiting bulge defines a first mounting section and a second mounting section at two ends of the main shaft;
the guide bearing assembly is detachably mounted on the first mounting section, and the rear end of the guide bearing assembly abuts against the axial side face of the front end of the limiting protrusion
The conical grinding wheel is detachably mounted on the second mounting section, and the front end of the conical grinding wheel is abutted to the axial side face of the rear end of the limiting protrusion.
Preferably, the pilot bearing assembly is threadedly connected to the first mounting section;
also included is a first retaining member disposed at the guide bearing assembly forward end to define the guide bearing assembly on the first mounting segment.
Preferably, the guide bearing assembly comprises a first guide bearing and a second guide bearing, and a bearing locating sleeve arranged between the first guide bearing and the second guide bearing in the axial direction.
Preferably, the outer diameters of the first guide bearing and the second guide bearing are 1-2mm smaller than the inner diameter of the heat exchange pipe.
Preferably, the conical grinding wheel is in threaded connection with the second mounting section;
still include the second retaining member, the second retaining member is located toper emery wheel rear end, in order will toper emery wheel is injectd on the second installation section.
Preferably, the first locking member and the second locking member are lock nuts.
Preferably, the rear end of the main shaft is provided with a square joint detachably connected with an external power source.
The heat exchange tube weld cleaning equipment comprises the heat exchange tube weld cleaning device and further comprises an external power source connected with the heat exchange tube weld cleaning device to provide power.
Preferably, the external power source comprises a hand-held percussion drill or an internal grinding machine.
Implement the utility model discloses following beneficial effect has: this heat exchange tube welding seam cleaning device simple structure satisfies the narrow and small condition of shell and tube type heat exchanger working space, and is efficient, can clear away the heat exchange tube welding seam fast after connecting external power source, safe and reliable, and work is steady, can not scurry in disorder, has avoided the part departure to hinder the people.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a schematic structural view of a shell-and-tube heat exchanger;
FIG. 2 is a partial cross-sectional view of a shell and tube heat exchanger;
FIG. 3 is a three-dimensional cross-sectional view of the heat exchange tube weld cleaning device of the present invention;
fig. 4 is the schematic view of the heat exchange tube weld cleaning device of the present invention in the working state.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 3-4, the utility model discloses a heat exchange tube welding seam cleaning device, include the main shaft 1 of can dismantling the connection with external power source to and the cover locate the main shaft 1 periphery and with the toper emery wheel 2 of heat exchange tube welding seam 102 butt, the cover locate the main shaft 1 periphery and with the direction bearing subassembly 3 of the inner wall butt of heat exchange tube 100.
In the embodiment, the main shaft 1 has a substantially long-bar structure, and a limiting protrusion 11 is disposed in the middle of the main shaft 1, and the limiting protrusion 11 defines a first mounting section 12 and a second mounting section 13 at two ends of the main shaft 1. The main shaft 1 can be made of metal pieces with good stability and strength, for example, 45 steel can be used.
The guide bearing assembly 3 is detachably mounted on the first mounting section 12, and the rear end of the guide bearing assembly abuts against the axial side surface of the front end of the limiting protrusion 11, while the conical grinding wheel 2 is detachably mounted on the second mounting section 13, and the front end of the conical grinding wheel abuts against the axial side surface of the rear end of the limiting protrusion 11.
Preferably, the guide bearing assembly 3 is threadedly coupled to the first mounting section 12, and the apparatus further includes a first retaining member 4, the first retaining member 4 being disposed at a forward end of the guide bearing assembly to retain the guide bearing assembly 3 on the first mounting section 12.
Preferably, the guide bearing assembly 3 includes a first guide bearing 31 and a second guide bearing 32, and a bearing positioning sleeve 33 disposed between the first guide bearing 31 and the second guide bearing 32 in the axial direction, the bearing positioning sleeve 33 separating the first guide bearing 31 from the second guide bearing 32.
The outer diameters of the first guide bearing 31 and the second guide bearing 32 are 1-2mm smaller than the inner diameter of the heat exchange tube, so that the heat exchange tube weld cleaning device can be conveniently taken out of the heat exchange tube 100.
It can be understood that the first guide bearing 31 and the second guide bearing 32 can contact with the inner wall of the heat exchange tube 100 through the outer diameter thereof, and the main shaft 1 is fixed by the lateral supporting force provided from the inner wall of the heat exchange tube 100, thereby ensuring that the main shaft 1 does not generate large lateral displacement change during the working process, and also ensuring that the tapered grinding wheel 2 does not laterally move during the working process. The first guide bearing 31 and the second guide bearing 32 can also eliminate the circumferential force generated by the heat exchange tube weld cleaning device in the working process, so as to ensure that the heat exchange tube 100 is not affected.
In the present embodiment, the inner side walls of the first guide bearing 31, the second guide bearing 32 and the bearing positioning sleeve 33 are provided with inner thread surfaces, the outer periphery of the first mounting section 12 is provided with outer thread surfaces, and the first locking member 4 is screwed, and preferably, a locking nut is adopted as the first locking member 4, which is installed in the first mounting section 12 and abuts against the first guide bearing 31 to limit the guide bearing assembly 3 on the first mounting section 12. In the present embodiment, the first guide bearing 31 and the second guide bearing 32 are disposed coaxially with the bearing positioning sleeve 33.
Preferably, the tapered grinding wheel 2 is in threaded connection with the second mounting section 13, and the tapered grinding wheel mounting structure further comprises a second locking member 5, wherein the second locking member 5 is arranged at the rear end of the tapered grinding wheel 2 so as to limit the tapered grinding wheel 2 on the second mounting section 13.
The inner side walls of the conical grinding wheels 2 are provided with inner thread surfaces, the outer periphery of the second mounting section 13 is provided with outer thread surfaces, the inner thread surfaces and the outer thread surfaces are in threaded connection, and preferably, the second locking piece 5 adopts a locking nut which is installed in the second mounting section 13 and abuts against the axial side surface of the rear end of the conical grinding wheel 2 so as to limit the conical grinding wheel 2 on the second mounting section 13.
In this embodiment, the outer side surface of the conical grinding wheel 2 comprises a conical surface abutting against the heat exchange tube weld 102, and a plane surface connected with the conical surface away from the heat exchange tube weld 102. The conical grinding wheel 2 can be tightly attached to the welding seam 102 of the heat exchange tube and cannot be contacted with the rest positions of the heat exchange tube 100 and the tube plate 101, so that accidental damage to equipment is avoided. The conical grinding wheel 2 can be selected and replaced according to the inner diameter and the wall thickness of the heat exchange tube 100, and the application range is wide.
In the present embodiment, the rear end of the main shaft 1 is provided with a square joint 14 detachably connected to an external power source. Of course, interfaces with different shapes can be arranged according to requirements, such as an outer hexagonal joint or an inner hexagonal groove.
The external power source can be selected for use hand-held type percussion drill also can use interior mill, preferably adopts hand-held type percussion drill, can guarantee the steady operation of device in the course of the work better like this. Of course, other power sources may be used, and are not limited specifically herein.
This heat exchange tube welding seam cleaning device can not exert an influence to existing equipment when the heat exchange tube 100 fracture needs to be pulled out appearing, and work is steady, can not lead to the unusual departure of high-speed rotatory part to produce the injury to the human body. Meanwhile, the device does not need a large number of auxiliary components, is simple and reliable, is easy to process and has low cost. The efficiency is high, and the replacement is convenient.
The application also discloses a heat exchange tube welding seam cleaning equipment, including foretell heat exchange tube welding seam cleaning device, still include with the heat exchange tube welding seam cleaning device be connected in order to provide the external power source of power (not shown).
In this embodiment, the external power source comprises a hand-held percussion drill or an internal grinding machine. Preferably, a hand-held percussion drill is used, which better ensures stable operation of the device during operation.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. The utility model provides a heat exchange tube welding seam cleaning device, its characterized in that includes main shaft (1) of can dismantling the connection with external power source to and the cover is located main shaft (1) periphery and with conical grinding wheel (2) of heat exchange tube welding seam butt, the cover is located main shaft (1) periphery and with direction bearing assembly (3) of the inner wall butt of heat exchange tube.
2. The heat exchange tube weld cleaning device according to claim 1, characterized in that a limiting bulge (11) is arranged in the middle of the main shaft (1), and the limiting bulge (11) defines a first mounting section (12) and a second mounting section (13) at two ends of the main shaft (1);
the guide bearing assembly (3) is detachably mounted on the first mounting section (12), and the rear end of the guide bearing assembly is abutted to the axial side face of the front end of the limiting bulge (11)
The conical grinding wheel (2) is detachably mounted on the second mounting section (13), and the front end of the conical grinding wheel is abutted to the axial side face of the rear end of the limiting protrusion (11).
3. The heat exchange tube weld cleaning apparatus according to claim 2, wherein the guide bearing assembly (3) is threadedly connected with the first mounting section (12);
the guide bearing assembly further comprises a first locking piece (4), wherein the first locking piece (4) is arranged at the front end of the guide bearing assembly (3) so as to limit the guide bearing assembly (3) on the first installation section (12).
4. The heat exchange tube weld cleaning device according to claim 3, characterized in that the guide bearing assembly (3) comprises a first guide bearing (31) and a second guide bearing (32), and a bearing positioning sleeve (33) arranged between the first guide bearing (31) and the second guide bearing (32) in the axial direction.
5. The heat exchange tube weld cleaning device according to claim 4, characterized in that the outer diameters of the shafts of the first guide bearing (31) and the second guide bearing (32) are 1-2mm smaller than the inner diameter of the heat exchange tube.
6. The heat exchange tube weld cleaning device according to claim 3, characterized in that the conical grinding wheel (2) is in threaded connection with the second mounting section (13);
still include second retaining member (5), second retaining member (5) are located toper emery wheel (2) rear end, in order will toper emery wheel (2) are injectd on second installation section (13).
7. The heat exchange tube weld cleaning device according to claim 6, characterized in that the first locking member (4) and the second locking member (5) are locking nuts.
8. The heat exchange tube weld cleaning device according to claim 2, characterized in that the rear end of the main shaft (1) is provided with a square joint (14) detachably connected with an external power source.
9. A heat exchange tube weld cleaning apparatus, comprising the heat exchange tube weld cleaning apparatus according to any one of claims 1 to 8, and further comprising an external power source connected to the heat exchange tube weld cleaning apparatus to provide power.
10. The heat exchange tube weld cleaning apparatus according to claim 9, wherein the external power source comprises a hand-held hammer drill or an internal grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120200357.XU CN214371974U (en) | 2021-01-25 | 2021-01-25 | Heat exchange tube welding seam cleaning device and heat exchange tube welding seam cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120200357.XU CN214371974U (en) | 2021-01-25 | 2021-01-25 | Heat exchange tube welding seam cleaning device and heat exchange tube welding seam cleaning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214371974U true CN214371974U (en) | 2021-10-08 |
Family
ID=77958917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120200357.XU Active CN214371974U (en) | 2021-01-25 | 2021-01-25 | Heat exchange tube welding seam cleaning device and heat exchange tube welding seam cleaning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214371974U (en) |
-
2021
- 2021-01-25 CN CN202120200357.XU patent/CN214371974U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103052813B (en) | Bolt and the clamping system using bolt | |
| EP1943044B1 (en) | Milling head for removing heat dissipating elements from a tube | |
| CN214371974U (en) | Heat exchange tube welding seam cleaning device and heat exchange tube welding seam cleaning equipment | |
| CN206277032U (en) | A kind of friction welding magic chuck | |
| CN207326096U (en) | A kind of cylindrical chamfering device | |
| JP2014008572A (en) | Cutting tool holding implement | |
| CN103831478A (en) | Tool for removing burrs inside steel tube | |
| CN104493201B (en) | Pipeline internal-expansion type beveling machine | |
| CN110961729A (en) | Ultrasonic micro-pit processing device based on cambered surface contact type force transmission structure | |
| CN103920935A (en) | Removing mechanism for burrs in straight welded steel pipes | |
| CN206065501U (en) | Machining device for tube plates and baffle plates with different chamfer sizes | |
| CN214418229U (en) | Double-station turning combined positioning and clamping device | |
| CN212264757U (en) | Gear shaving clamp convenient for workpiece fixing | |
| CN210817898U (en) | Back face protection tool for inner hole welding | |
| CN105127460B (en) | A kind of clip type threading tool | |
| CN210010785U (en) | A dust type grinding device for bellows | |
| CN200991879Y (en) | Draw-pull device | |
| CN209394277U (en) | A kind of power station diesel generating set centralising device | |
| CN210147015U (en) | Turning tool for machining inner hole | |
| CN107812987A (en) | Machining device for tube plates and baffle plates with different chamfer sizes | |
| CN212945659U (en) | Modular adjustable diamond milling cutter | |
| CN103447881A (en) | Water outlet right-angle head of pentahedron center of numerical-control machine tool | |
| CN216541305U (en) | Carbon dioxide protection welding machine for machining | |
| CN209550797U (en) | A kind of bulb Lifting Device | |
| CN210848959U (en) | Positioning structure for welding nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |