CN112304153B - Movable head of device for cleaning, derusting and degreasing inner wall of heat exchange tube in heat exchanger - Google Patents
Movable head of device for cleaning, derusting and degreasing inner wall of heat exchange tube in heat exchanger Download PDFInfo
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- CN112304153B CN112304153B CN202011205877.6A CN202011205877A CN112304153B CN 112304153 B CN112304153 B CN 112304153B CN 202011205877 A CN202011205877 A CN 202011205877A CN 112304153 B CN112304153 B CN 112304153B
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- heat exchange
- exchange tube
- degreasing
- movable head
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/10—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
- F28G3/14—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted thrown into working position by centrifugal force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/16—Rotary appliances using jets of fluid for removing debris
- F28G3/163—Rotary appliances using jets of fluid for removing debris from internal surfaces of heat exchange conduits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a movable head of a device for cleaning, derusting and degreasing the inner wall of a heat exchange tube in a heat exchanger, which has simple and compact structure, is suitable for heat exchange tubes with different specifications, small tube diameters and long lengths, and can clean, derust, degrease and the like the inner wall of the heat exchange tube; a plurality of helical teeth are uniformly distributed on the outer conical surface of the conical head, and materials push the helical teeth, so that the self-rotation, dead-angle-free decontamination, degreasing and rust removal work of the movable head is realized. The movable head of the invention leads the inner wall of the heat exchange tube to be degreased to meet the qualified requirement of purple light inspection by carrying out degreasing work on the heat exchange tube; the surface cleanliness of the inner wall of the heat-free exchange tube can reach Sa2.5 by carrying out decontamination and rust removal on the heat-free exchange tube, and the requirement of subsequent spraying of anticorrosive paint on the inner wall can be met.
Description
Technical Field
The invention belongs to the field of heat exchangers, and particularly relates to a movable head of a dirt-removing, rust-removing and degreasing device for the inner wall of a heat exchange tube in a heat exchanger.
Background
In industrial and daily life, the heat exchange tubes of heat exchangers and reactor equipment which bear various fluid media are in actual use, and the activity of a catalyst in the heat exchange tubes is reduced or even loses efficacy due to incomplete degreasing and decontamination of the inner walls of the stainless steel heat exchange tubes; the stainless/carbon steel heat exchange tube is not clean in carrying oxygen, so that safety accidents are caused; the carbon steel heat exchange tube reduces the conveying efficiency of the tube bundle due to corrosion and deposit scale in use, and the inner wall is corroded and perforated more seriously, so that leakage is caused and safety accidents are caused. Therefore, it is necessary to perform degreasing, decontamination, rust removal and internal corrosion prevention treatment on the inner wall of the heat exchange tube. The conventional high-pressure water gun for cleaning oil stains and dirt on the inner wall of the heat exchange tube has a blind area phenomenon, and the cleaning is not thorough; the cleaning of the inner wall of the heat exchange tube is incomplete because the flow velocity of the circulating solvent for cleaning oil stains and dirt is small and the strength of the inner wall cleaned by the flowing shearing force of the solvent is insufficient; the conventional sand blasting and rust removing device in the heat exchange tube is not suitable for cleaning and rust removing of the heat exchange tube with small diameter due to large specification, even if sand blasting can be carried out in the tube, the conventional sand blasting and rust removing device can not realize the work of removing rust without dead angle and with low energy consumption in the heat exchange tube because the conventional sand blasting and rust removing device can not freely rotate and automatically retreat.
Disclosure of Invention
The invention provides a movable head of a device for cleaning, derusting and degreasing inner walls of heat exchange tubes in a heat exchanger, which is suitable for treating the inner walls of the heat exchange tubes with small tube diameters and long distances. According to different materials, the degreased inner wall of the heat exchange tube meets the qualified requirement of purple light inspection; the surface cleanliness of the inner wall of the heat exchange tube after decontamination and rust removal reaches Sa2.5, and the requirement of spraying anticorrosive paint on the subsequent inner wall of the inner wall is met.
The technical scheme of the invention is realized as follows:
a movable head for a device for cleaning, rust removing and degreasing the inner wall of a heat exchange tube in a heat exchanger comprises a box body, wherein a cavity is arranged in the box body; openings communicated with the cavity are formed in the top and the bottom of the box body;
the top of the box body is provided with an inner cone top plate, and the bottom of the box body is provided with a feeding disc;
an inwards concave conical head is arranged at the central position of the inner conical top plate, and a plurality of helical teeth are uniformly distributed on the outer conical surface of the conical head;
a plurality of first discharge ports communicated with the cavity are uniformly arranged on the inner cone top plate, and the first discharge ports are uniformly distributed along the circumferential direction of the inner cone top plate; a reed is arranged at the first discharge port, and one end of the reed is connected with the inner cone top plate through a spring screw;
a plurality of second discharge ports communicated with the cavity are uniformly distributed on the same circumference of the box body.
Furthermore, the cone angle of the cone head is 35-60 degrees.
Further, the number of the helical teeth is 6-12, and the helical angle of the helical teeth is 35-60 degrees.
Furthermore, the number of the first discharge ports is 6-12, the first discharge ports are inclined downwards from the outer flange of the inner cone top plate to the central point of the inner cone top plate, and the angle of the first discharge ports is 35-60 degrees.
Further, the quantity of second discharge gate is 3-4, and the second discharge gate inclines upwards to the cavity direction from the outside of letter body, and the angle of second discharge gate is 70 ~ 90.
Further, the feeding disc comprises a disc body, an annular baffle is arranged at the top of the disc body, and the annular baffle extends towards the outer side of the disc body;
the periphery of the tray body is provided with a bearing, the top of the bearing is abutted against the bottom of the annular baffle, the bearing and the box body are correspondingly provided with screw holes, and the bearing and the box body are fixed through a positioning bolt.
Furthermore, a hairbrush is arranged on the outer peripheral surface of the annular baffle, and the other end of the hairbrush is abutted against the inner wall of the box body.
Furthermore, the material of the brush is stainless steel or carbon steel.
Furthermore, the inner cone top plate and the box body are both made of wear-resistant and impact-resistant materials.
Further, the inner cone top plate comprises an inner cone top cover and an outer flange arranged at the bottom of the top, and the outer wall of the outer flange is provided with an external thread;
the conical head is arranged at the central position of the inner conical top cover, and the outer flange is arranged at the bottom of the inner conical top cover at the periphery of the conical head;
the box body top is provided with the fluting with outer flange matched with, is provided with the internal thread with external screw thread matched with on the grooved inner wall.
The invention provides a movable head of a device for cleaning, derusting and degreasing the inner wall of a heat exchange tube in a heat exchanger, which has simple and compact structure, is suitable for heat exchange tubes with different specifications and small tube diameters and long lengths, and can clean, derust, degrease and the like the inner wall of the heat exchange tube; the outer conical surface of the conical head is evenly provided with a plurality of helical teeth, and materials push the helical teeth, so that the self-rotation of the movable head, no dead angle, dirt removal, degreasing and rust removal are realized. The movable head of the invention leads the inner wall of the heat exchange tube to be degreased to meet the qualified requirement of purple light inspection by carrying out degreasing work on the heat exchange tube; the surface cleanliness of the inner wall of the heat-free exchange tube can reach Sa2.5 by carrying out decontamination and rust removal on the heat-free exchange tube, and the requirement of subsequent spraying of anticorrosive paint on the inner wall can be met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a movable head of a device for cleaning, rust removing and degreasing the inner wall of a heat exchange tube in a heat exchanger, which is disclosed by the invention;
fig. 2 is a schematic structural diagram of the conical head in fig. 1.
In the figure:
1. an inner cone top plate; 11. a conical head; 12. an inner cone top cover; 13. an outer flange; 14. a first discharge port; 15. helical teeth; 2. a letter body; 21. a second discharge port; 22. a cavity; 3. a bearing; 4. positioning the bolt; 5. a feed tray; 51. an annular baffle; 52. a tray body; 6. a reed; 61. a spring screw; 7. and a brush.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that in the description of the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
With reference to fig. 1-2, the invention provides a movable head of a device for cleaning, rust removing and degreasing the inner wall of a heat exchange tube in a heat exchanger, which comprises a box body 2 provided with a cavity 22 inside; the top and the bottom of the box body 2 are provided with openings communicated with the cavity 22;
the top of the box body 2 is provided with an inner cone top plate 1, and the bottom of the box body is provided with a feeding disc 5;
a conical head 11 which is concave towards the cavity of the box body is arranged at the central position of the inner conical top plate, and a plurality of helical teeth 15 are uniformly distributed on the outer conical surface of the conical head 11;
a plurality of first discharge holes 14 communicated with the cavity 22 are uniformly formed in the inner cone top plate, and the first discharge holes 14 are uniformly distributed along the circumferential direction of the inner cone top plate; the first discharge port 14 is provided with a reed 6, and one end of the reed 6 is connected with the inner cone top plate 1 through a spring screw 61;
a plurality of second discharge holes 21 communicated with the cavity 22 are uniformly distributed on the same circumference of the box body 2.
Materials such as degreasing, decontamination, rust removal and the like are fed in from the feeding disc, the helical teeth are urged to rotate the movable head, meanwhile, the materials pretreat the inner wall of the heat exchange pipe through the second discharge hole on the box body, and then the materials are finally sprayed on the inner wall of the heat exchange pipe through the first discharge hole 14 on the inner conical top cover. The invention has simple and compact structure, is suitable for heat exchange tubes with different specifications, small pipe diameters and long lengths, and can clean, derust, degrease and the like the inner wall of the heat exchange tube; a plurality of helical teeth 15 are uniformly distributed on the outer conical surface of the conical head 11, materials push the helical teeth 15, the movable head can rotate automatically without dead angles, and the work of cleaning, degreasing and derusting the inner wall of the heat exchange pipe is completed.
In the invention, the second discharge port 21 on the box body 2 can enable the movable head to be in a hollow and suspended state under the acting force and the reacting force of the material and the inner wall of the heat exchange pipe. Compressed air is introduced into a second discharge port 21 on the box body 2 to enable the movable head to move from one end of the heat exchange tube to the other end. The movable head automatically retreats by the action of the material through the first discharge hole 14 on the inner cone top plate 1.
Furthermore, the cone angle of the cone head 11 is 35-60 degrees.
Furthermore, the number of the helical teeth 15 is 6-12, the helical angle of the helical teeth 15 is 35-60 degrees, and the height of the helical teeth 15 is 2-3 mm. The material enters the cavity 22 from the feeding disc 5, and pushes the helical teeth 15 on the conical head 11, so that the movable head can realize self-rotation, and the heat exchange tube is thorough in decontamination, degreasing and rust removal and has no dead angle.
Further, the number of the first discharge holes 14 is 6 to 12, the first discharge holes 14 are inclined downwards from the outer circumferential surface of the inner cone top plate 1 to the direction of the central point thereof, and the angle of the first discharge holes 14 is 35 to 60 degrees. The material passes through the first discharge hole, can carry out the final spout to the heat transfer pipe inner wall, simultaneously with the help of the first discharge hole 14 that the angle is 35-60, under the effort of material, makes the movable head move backward automatically.
Further, the number of the second discharge ports 21 is 3-4, the second discharge ports 21 are inclined upwards from the outer side of the box body 2 to the cavity 22, and the angle of the second discharge ports 21 is 70-90 degrees. The second discharge hole is arranged to be 70-90 degrees, so that the movable head can be in a hollow and suspended state under the action force and the reaction force of the materials and the inner wall of the heat exchange pipe; and the second discharge port 21 with the angle can lead the movable head to be from one end to the other end of the heat exchange tube when compressed air is introduced.
Further, the feeding disc 5 comprises a disc body 52, an annular baffle 51 is arranged at the top of the disc body 52, and the annular baffle 51 extends towards the outer side of the disc body 52; the periphery of the disc body 52 is provided with a bearing 3, the top of the bearing 3 is abutted against the bottom of the annular baffle 51, screw holes are correspondingly formed in the bearing 3 and the letter body 2, the bearing 3 and the letter body 2 are fixed through a positioning bolt 4, and the disc body and the bearing are fixedly connected through a hot sleeve method.
Further, the outer peripheral surface of the annular baffle 51 is provided with the brush 7, the other end of the brush 7 is abutted against the inner wall of the box body 2, and the brush 7 can prevent sand from impacting the bearing 3, so that the brush 7 is protected.
Further, the material of the brush 7 is stainless steel or carbon steel.
Furthermore, the inner cone top plate 1 and the box body 2 are both made of wear-resistant and impact-resistant materials.
Further, the inner cone top plate 1 comprises an inner cone top cover and an outer flange 13 arranged at the bottom of the top, and an external thread is arranged on the outer wall of the outer flange 13; the conical head is arranged at the central position of the inner conical top cover, and the outer flange is arranged at the bottom of the inner conical top cover at the periphery of the conical head; the top of the box body 2 is provided with a slot matched with the outer flange 13, and the inner wall of the slot is provided with an inner thread matched with the outer thread. Wherein the inner diameter of the outer flange is equal to the inner diameter of the box body, and the outer diameter is smaller than the outer diameter of the box body; the inner cone top cover is fixedly connected with the box body through threads.
It should be noted that the material of the movable head is different according to the material of the heat exchange tube to be processed: when the heat exchange tube is a stainless steel tube and oil stains and dirt on the inner wall of the stainless steel tube need to be cleaned, the movable head is made of stainless steel; when the heat exchange pipe is a carbon steel pipe and oil stain and rust on the inner wall of the carbon steel pipe need to be cleaned, the movable head is made of carbon steel or stainless steel.
The heat exchange tube is cleaned, derusted and degreased by materials such as a degreasing agent, compressed air, quartz sand and the like, wherein the degreasing agent is not specially limited and can be sold on the market; the hardness of the selected quartz sand is 5-7 Mohs, the granularity is 10-20 meshes, and the quartz sand is used for carrying out work such as rust removal on the inner wall of the heat exchange tube.
The movable head of the device for cleaning, derusting and degreasing the inner wall of the heat exchange tube in the heat exchanger can meet the process requirements of dirt removal, degreasing, pollution discharge and derusting before corrosion prevention of the inner surface of the small-diameter and long heat exchange tube, and is a high-efficiency, high-quality, low-energy-consumption, portable and multipurpose movable head. When in use, the movable head is arranged in the heat exchange tube, under the condition that the first discharge hole 14 of the inner cone top cover 1 is blocked by the reed 6, compressed air is introduced from the feed disc 5, and the movable head is led to the other end from one end of the heat exchange tube by virtue of the second discharge hole 21 on the box body 2; then the reed 6 is unscrewed, materials such as degreasing, decontamination, rust removal and the like are introduced into the cavity of the letter body through the feeding disc 5, the materials sweep the helical teeth on the conical head to enable the movable head to rotate circumferentially, the inner wall of the heat exchange pipe is decontaminated and rust removed in advance through the second discharge hole on the letter body 2, the materials are decontaminated and rust removed from the inner wall finally through the second discharge hole 21 on the inner conical top cover, meanwhile, the second discharge hole on the letter body 2 is suspended in the heat exchange pipe through material acting force, the first discharge hole on the inner conical top cover is automatically retreated through material acting force, the movable head is automatically rotated and retreated in the heat exchange pipe through the process, and the work of degreasing, decontamination and rust removal without dead angles is realized.
Illustrating the method of use of the invention:
1) carrying out decontamination and degreasing work on the inner wall of the stainless steel pipe:
firstly, connecting a hose for circulating compressed air with a feeding disc of a movable head, and then locking the hose by using a clamping sleeve; or the hard pipe for circulating compressed air is connected and locked with the feeding disc of the movable head through screw threads.
Secondly, the reed on the inner cone top cover is rotated to the position for closing the first discharge hole, and then compressed air is introduced, so that the movable head of the invention automatically reaches the other end from one end of the heat exchange tube.
And thirdly, rotating the reed on the inner cone top cover to the position for opening the first discharge hole, introducing a degreasing agent and a dirt removing agent, and realizing self-rotation and self-retreat of the movable head through inclined teeth on the outer surface of the cone head and acting force of the material and the inner wall of the heat exchange pipe to finish the work of no dead angle, pretreatment, final treatment, decontamination and degreasing on the inner wall of the heat exchange pipe.
2) Cleaning and derusting the inner wall of the carbon steel pipe:
firstly, connecting a hose for circulating compressed air with a feeding disc of a movable head, and then locking the hose by using a clamping sleeve; or the hard pipe for circulating compressed air is connected and locked with the feeding disc of the movable head through screw threads.
Secondly, the inner cone top cover is screwed to the position for closing the first discharge hole, and then compressed air is introduced to enable the movable head to reach the other end from one end in the heat exchange tube.
And thirdly, the inner cone top cover is screwed up to the position of opening the first discharge hole, compressed air or other rust removers such as quartz sand are introduced, the movable head can rotate automatically and retreat automatically through helical teeth on the outer surface of the cone head and the acting force of the material and the inner wall of the heat exchange pipe, and the work of no dead angle on the inner wall of the heat exchange pipe, pretreatment, final treatment, decontamination and degreasing is completed.
Degreasing the stainless steel pipe to ensure that the inner wall of the stainless steel pipe is degreased to meet the qualified requirement of the purple light inspection; through decontamination and rust removal of the stainless steel pipe and the carbon steel pipe, the surface cleanliness of the inner walls of the stainless steel pipe and the carbon steel pipe reaches Sa2.5, and the requirement of subsequent spraying of anticorrosive paint on the inner walls is met.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Claims (9)
1. A movable head of a device for cleaning, rust removing and degreasing the inner wall of a heat exchange tube in a heat exchanger is characterized by comprising a box body (2) internally provided with a cavity (22); the top and the bottom of the box body (2) are provided with openings communicated with the cavity (22);
the top of the box body (2) is provided with an inner cone top plate (1), and the bottom of the box body is provided with a feeding disc (5);
the feeding disc (5) comprises a disc body (52), an annular baffle (51) is arranged at the top of the disc body (52), and the annular baffle (51) extends towards the outer side of the disc body (52);
a bearing (3) is arranged on the periphery of the tray body (52), the top of the bearing (3) is abutted against the bottom of the annular baffle (51), screw holes are correspondingly formed in the bearing (3) and the letter body (2), and the bearing (3) and the letter body (2) are fixed through a positioning bolt (4);
an inwards concave conical head (11) is arranged at the central position of the inner conical top plate (1), and a plurality of helical teeth (15) are uniformly distributed on the outer conical surface of the conical head (11);
a plurality of first discharge holes (14) communicated with the cavity (22) are uniformly formed in the inner cone top plate (1), and the first discharge holes (14) are uniformly distributed along the circumferential direction of the inner cone top plate (1); the first discharge hole (14) is provided with a reed (6), and one end of the reed (6) is connected with the inner cone top plate (1) through a spring screw (61); a plurality of second discharge holes (21) communicated with the cavity (22) are uniformly distributed on the same circumference of the box body (2).
2. The movable head for the device for cleaning, rust removing and degreasing the inner wall of the heat exchange tube in the heat exchanger as recited in claim 1, wherein the cone angle of the cone head (11) is 35-60 degrees.
3. The movable head of the device for cleaning, rust removing and degreasing the inner wall of the heat exchange tube in the heat exchanger according to claim 1, wherein the number of the helical teeth (15) is 6-12, and the helix angle of the helical teeth (15) is 35-60 degrees.
4. The movable head for the device for cleaning, rust removing and degreasing the inner wall of the heat exchange tube in the heat exchanger as recited in claim 1, wherein the number of the first discharge ports (14) is 6-12, the first discharge ports (14) are inclined downwards from the outer flange (13) of the inner cone top plate (1) to the direction of the central point thereof, and the angle of the first discharge ports (14) is 35-60 °.
5. The movable head for the device for cleaning, removing rust and degreasing the inner wall of the heat exchange tube in the heat exchanger as recited in claim 1, wherein the number of the second discharge ports (21) is 3-4, the second discharge ports (21) are inclined upwards from the outer side of the box body (2) to the direction of the cavity (22), and the angle of the second discharge ports (21) is 70-90 degrees.
6. The movable head of a device for cleaning, rust removing and degreasing the inner wall of a heat exchange tube in a heat exchanger as recited in claim 1, wherein a brush (7) is arranged on the outer peripheral surface of the annular baffle (51), and the other end of the brush (7) is abutted against the inner wall of the box body (2).
7. The movable head of the device for cleaning, rust removing and degreasing the inner wall of the heat exchange tube in the heat exchanger as claimed in claim 6, wherein the brush (7) is made of stainless steel or carbon steel.
8. The movable head of a device for cleaning, rust removing and degreasing the inner wall of a heat exchange tube in a heat exchanger as claimed in claim 1, wherein the inner cone top plate (1) and the box body (2) are both made of wear-resistant and impact-resistant materials.
9. The movable head for the device for cleaning, rust removing and degreasing the inner wall of the heat exchange tube in the heat exchanger as recited in claim 1, wherein the inner cone top plate (1) comprises an inner cone top cover (12) and an outer flange (13) arranged at the bottom of the top, and the outer wall of the outer flange (13) is provided with external threads;
the conical head (11) is arranged at the central position of the inner conical top cover (12), and the outer flange (13) is arranged at the bottom of the inner conical top cover (12) at the periphery of the conical head (11);
the top of the box body (2) is provided with a notch matched with the outer flange (13), and the inner wall of the notch is provided with an internal thread matched with the external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011205877.6A CN112304153B (en) | 2020-11-02 | 2020-11-02 | Movable head of device for cleaning, derusting and degreasing inner wall of heat exchange tube in heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011205877.6A CN112304153B (en) | 2020-11-02 | 2020-11-02 | Movable head of device for cleaning, derusting and degreasing inner wall of heat exchange tube in heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112304153A CN112304153A (en) | 2021-02-02 |
| CN112304153B true CN112304153B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011205877.6A Active CN112304153B (en) | 2020-11-02 | 2020-11-02 | Movable head of device for cleaning, derusting and degreasing inner wall of heat exchange tube in heat exchanger |
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| Country | Link |
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| CN (1) | CN112304153B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB223778A (en) * | 1924-01-09 | 1924-10-30 | Mathias Sofus Johannes Jensen | Improvements in cleaning devices for the tubes of steam boilers and the like |
| US5675863A (en) * | 1995-08-28 | 1997-10-14 | Combustion Engineering, Inc. | Full coverage sootblower |
| EP0921268B1 (en) * | 1997-12-08 | 2003-10-22 | Sofitech N.V. | Apparatus for cleaning well tubular members |
| CN108387134A (en) * | 2018-02-11 | 2018-08-10 | 吉林省电力科学研究院有限公司 | Tube heat exchanger equipment tube-bundle cleaning device |
| CN210138759U (en) * | 2019-03-27 | 2020-03-13 | 光大生态环境设计研究院有限公司 | Pipeline cleaning spray head |
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2020
- 2020-11-02 CN CN202011205877.6A patent/CN112304153B/en active Active
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| CN112304153A (en) | 2021-02-02 |
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