CN110455116B - Pipe box cleaning equipment beneficial to installation space optimization - Google Patents
Pipe box cleaning equipment beneficial to installation space optimization Download PDFInfo
- Publication number
- CN110455116B CN110455116B CN201910850333.6A CN201910850333A CN110455116B CN 110455116 B CN110455116 B CN 110455116B CN 201910850333 A CN201910850333 A CN 201910850333A CN 110455116 B CN110455116 B CN 110455116B
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- China
- Prior art keywords
- cleaning
- pipe box
- pipe
- installation space
- rope
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- 238000004140 cleaning Methods 0.000 title claims abstract description 74
- 238000009434 installation Methods 0.000 title claims abstract description 17
- 238000005457 optimization Methods 0.000 title claims abstract description 11
- 230000009286 beneficial effect Effects 0.000 title abstract description 5
- 230000008901 benefit Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- 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
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
-
- 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
- F28G15/04—Feeding and driving arrangements, e.g. power operation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the field of equipment cleaning design, in particular to pipe box cleaning equipment beneficial to installation space optimization. The technical aim of the invention is realized by the following technical scheme: the utility model provides a do benefit to pipe case cleaning equipment that installation space optimized contains the pipe case, install a plurality of pipelines in the pipe case box, still contain with the locating frame, drive arrangement that the pipe case is connected and be in under drive arrangement's drive locating frame gliding clean subassembly, drive arrangement installs the pipe case outside, drive arrangement contains stroke increase device. The invention aims to provide pipe box cleaning equipment which is favorable for optimizing the installation space, can clean the inside of a pipe box, remove chemical substance residues in the inside of the pipe box, particularly on the outer wall of a heat exchange pipe, and can adapt to a narrow operation space in the inside and outside of the pipe box.
Description
Technical Field
The invention relates to the field of equipment cleaning design, in particular to pipe box cleaning equipment beneficial to installation space optimization.
Background
In industrial production facilities, heat exchange components are often used to exchange heat with a flowing gas or liquid. For example, as disclosed in chinese patent publication CN204007287, a tube box is included, and a plurality of heat exchange tubes are included in the tube box. The heat exchange tubes have a heat exchange medium, such as condensed water, installed therein. The industrial gas flows in the tube box, passes through the heat exchange tubes, and undergoes heat exchange.
Industrial gases often have a number of chemicals, such as sulfur, and factories often use materials such as gypsum powder to desulphurize these industrial gases. Over time, these purification materials such as gypsum powder can remain in the tube box, and in particular the outer walls of the individual heat exchange tubes within the tube box, causing unsmooth and clogged industrial gas flows.
In addition, many cases have a relatively small space, not only inside but also outside, and are inconvenient for the attachment of the automatic cleaning member.
Disclosure of Invention
The invention aims to provide pipe box cleaning equipment which is favorable for optimizing the installation space, can clean the inside of a pipe box, remove chemical substance residues in the inside of the pipe box, particularly on the outer wall of a heat exchange pipe, and can adapt to a narrow operation space in the inside and outside of the pipe box.
The technical aim of the invention is realized by the following technical scheme:
The utility model provides a do benefit to pipe case cleaning equipment that installation space optimized contains the pipe case, install a plurality of pipelines in the pipe case box, still contain with the locating frame, drive arrangement that the pipe case is connected and be in under drive arrangement's drive locating frame gliding clean subassembly, drive arrangement installs the pipe case outside, drive arrangement contains stroke increase device.
Preferably, the cleaning sheet is connected to the connecting shaft in common in plural.
Preferably, the cleaning rows are two or more, and adjacent cleaning rows are connected by means of a common link.
Preferably, the cleaning bar comprises a connecting block, wherein the connecting block comprises a through shaft hole and a mounting groove, the through shaft hole is used for the connecting shaft to pass through, and the mounting groove is used for mounting the cleaning sheet.
Preferably, the connecting block comprises a clamping piece part and a base part positioned below the clamping piece part, the through hole is formed in the clamping piece part, the clamping piece part comprises two clamping pieces, the mounting groove is formed in the base part, and the connecting block further comprises a fastener for adjusting tightness between the two clamping pieces.
Preferably, the fastener is a bolt, and the two clamping pieces are provided with threads.
Preferably, the cleaning sheet comprises a main sheet, a retention hole formed in the main sheet, and a frangible groove formed in the main sheet.
Preferably, the cleaning device further comprises a transmission part connected with the cleaning assembly, the transmission part comprises a sliding vehicle and a connecting rope connected with the sliding vehicle, the positioning frame comprises a track, and the sliding vehicle slides on the track.
Preferably, the track and the sliding vehicle are two sets, and are arranged on two sides of the cleaning row.
Preferably, the driving device comprises a cylinder and a push-out block, the travel increasing device comprises a first movable pulley and a second movable pulley, the first movable pulley and the second movable pulley are connected by means of a double-wheel connecting rope, the double-wheel connecting rope is connected with the push-out block, a traction rope on the first movable pulley is connected with one end of an output piece, the traction rope on the second movable pulley is connected with the other end of the output piece, and the output piece is connected with the cleaning assembly.
Preferably, the cleaning device comprises a transmission part, wherein the transmission part comprises a connecting rope and a sliding vehicle, the sliding vehicle is connected with the cleaning assembly, and the connecting rope is connected with the driving device.
Preferably, the positioning frame comprises a track installed in a pipe box, the sliding vehicle runs on the track, the sliding vehicle comprises a vehicle body, wheels installed on the vehicle body and a rope through groove formed in the vehicle body, and the connecting rope is connected with the vehicle body through the rope through groove.
Preferably, the rope through groove extends in the vertical direction, and the upper end surface and the lower end surface are arc-shaped rope protection curved surfaces.
Preferably, the vehicle body is provided with a connecting hole at the central position, and the cleaning assembly is connected with the connecting hole.
Preferably, each of said wheels comprises a central inner wheel and outer buckling surfaces on either side of said inner wheel.
In summary, the invention has the following beneficial effects:
1. The device can wipe and clean the outer side of the pipeline by virtue of comb-shaped cleaning rows.
2. The cleaning device is driven by the driving device, so that the cleaning row can repeatedly clean the pipeline, and the cleaning effect is good.
3. The cleaning component has the functions of swing buffering and fracture protection, and the pipeline is prevented from being damaged in the cleaning process.
4. The driving part has a stroke increasing design, and can meet the moving stroke of the cleaning assembly by means of small-amplitude movement in a narrow installation space.
Drawings
FIG. 1 is a schematic diagram of example 1;
FIG. 2 is a schematic view of the hidden pipe box;
Fig. 3 is an enlarged detail view of a in fig. 2;
FIG. 4 is a schematic view of a cleaning sheet;
FIG. 5 is a schematic diagram of a drive device;
FIG. 6 is a schematic diagram of the wiring principle of the driving device;
Fig. 7 is a schematic view of a transmission component.
In the figure:
1. pipe box, 11, pipe, 2, cleaning unit, 21, cleaning row, 211, connecting shaft, 212, connecting block, 2121, clip portion, 2122, base portion, 2123, mounting groove, 2124, fastener, 213, cleaning sheet, 2131, main sheet, 2132, frangible groove, 2133, retention hole, 22, co-link, 3, positioning frame, 31, track, 4, transmission member, 41, connecting rope, 42, slide car, 421, car body, 422, connecting hole, 423, rope groove, 4231, rope-protecting curved surface, 424, wheel, 4241, inner wheel, 4242, outer fastening surface, 5, driving device, 51, cylinder, 52, push-out block, 53, first movable pulley, 54, second movable pulley, 55, directional wheel, 56, output piece, 57, two-wheeled connecting rope.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Example 1, as shown in fig. 5, includes a driving device 5. In the present embodiment, the driving device 5 includes a cylinder 51, and a pushing block 52 is connected to the end of a piston rod of the cylinder 51, and the pushing block 52 can reciprocate under the operation of the cylinder 51. As shown in fig. 6, the movable pulley 53 is included, and the wheel body of the movable pulley 53 is connected with the push-out block 52. The traction rope wound on the first movable pulley 53 has one end fixed and the other end connected to the output member 56. With this configuration, the stroke of the push-out block 52 is doubled by the corresponding stroke on the output member 56, and for example, when the push-out block 52 is moved by 5cm, the push-out block 56 is moved by 10cm.
And a second movable pulley 54 which is similar to the first movable pulley 53 in structure and connection, and a traction rope of which is connected to the other end of the output member 56 through a directional wheel 55.
As shown in fig. 1, the pipe box 1 is included, the walls of the pipe box 1 are hidden in the drawing, a plurality of pipes 11 are included in the inner space of the pipe box 1, condensed substances such as condensed water are provided in the pipes 11, and gas is heat-exchanged with the pipes 11 by flowing in the pipe box 1, i.e., moving at the gaps between the plurality of pipes 11. Due to the increase of desulphurisation substances, there are residues on the outer walls of the pipe 11, which residues need to be removed in this case.
In this case, the driving device 5 is installed outside the casing of the tube box 1, which is disadvantageous for installation due to the narrow space in the inner box. The design of the drive device 5 with the added stroke is due to the fact that the cleaning device is added to the pipe box 1, which is often a secondary refitting project. When the pipe box 1 is initially installed, because the reasons are not considered, the outside of the pipe box 1 is often a fixed frame and other parts, so that the stroke of the driving device 5 is also very limited, and the design of increasing the stroke can be used for meeting the effective moving stroke requirement of the cleaning assembly 2 in a limited narrow space.
As shown in fig. 1 and 2, a frame 3 is mounted in the pipe box 1, and the frame 3 includes a guide rail 31. Comprising a transmission member 4, the transmission member 4 comprising a trolley 42 and a connecting cord 41. The connecting rope 41 is connected with the output piece 6 in fig. 5, and the connecting rope 41 moves under the driving of the output piece 6, so that the sliding vehicle 42 is driven to move on the track 31.
As shown in fig. 7, the specific structure of the slide car 42 includes a car body 421, and wheels 424 mounted on the car body 421. The wheel 424 includes a central inner wheel 4241 and two side outer buckles 4242. The inner wheel 4241 is abutted against the rail 31, and the two outer fastening surfaces 4242 are fastened to the side surfaces of the rail 31.
The body 421 is provided with a rope groove 423, the rope groove 423 extends in a vertical direction, and the connecting rope 41 passes through the rope groove 423 and is fixedly connected with the body 421 by a component such as a screw bolt, thereby driving the sliding vehicle 42 to move. The connecting rope 41 is protected by providing a circular arc-shaped rope protecting curved surface 4231 on the upper and lower end surfaces of the rope groove 423.
A connection hole 422 is provided in the middle of the vehicle body 421 for connecting the cleaning assembly 2.
As shown in fig. 2 and 3, the cleaning assembly 2 comprises a plurality of cleaning rows 21, two in fig. 2, adjacent cleaning rows 21 being connected by means of a co-link 22. Each row of cleaning rows 21 includes a connecting shaft 211 and a plurality of cleaning sheets 213 connected thereto and arranged parallel to each other.
The coupling shaft 211 is coupled to the coupling hole 422 of the slider car 42. The connection shaft 211 is connected to the connection block 212, and the cleaning sheet 213 is mounted on the connection block 212. By driving the cleaning sheet 213 to move back and forth, the outer wall of the pipe 11 is wiped clean.
The pipe 11 is sometimes fragile due to the different materials and models. In order to avoid damage to the pipeline 11 during cleaning, the double buffer protection design of the cleaning assembly 2 is adopted in the technical scheme.
Specifically, the connection block 212 includes an upper clip portion 2121 and a lower base portion 2122. The clip portion 2121 includes two clips with a gap therebetween. The middle parts of the two clamping pieces are provided with through holes for the connecting shafts 211 to pass through. Grooves are provided in both clips, the grooves extending over the threads. The user screws into the groove using fasteners 2124 such as bolts, screws, etc., to adjust the tightness between the two jaws. On the one hand, the design enables an operator to install and debug in a narrow space in the pipe box 1 by one hand, and the operation is convenient. On the other hand, the tightness of the two clips is adjusted by adjusting the screwing degree of the bolt, thereby adjusting the firmness of the cleaning sheet 213. If the user sends the tightness adjustment to a point, the cleaning sheet 213 will rotate itself when touching the pipe 11 as a displacement buffer, so as to protect the outer wall of the pipe 11.
Second, a mounting groove 2123 is formed in the base 2122, and the cleaning blade 213 is connected to the mounting groove 2123 by means of a bolt or the like. As shown in fig. 4, the bolts pass through retention holes 2133 in main plate 2131. And the main piece 2131 is provided with a frangible groove 2132. The area of the connecting portions on both sides of the frangible groove 2132 is small. When the cleaning sheet 213 hits the outer side of the wall of the pipe 11, if the acting force between the cleaning sheet 213 and the wall is too strong, the cleaning sheet 213 breaks at the frangible groove 2132, so as to avoid the rigid contact on the outer side of the wall of the pipe 11, and protect the pipe 11.
Claims (7)
1. The utility model provides a do benefit to pipe case cleaning device of installation space optimization, contains pipe case (1), install a plurality of pipelines (11), its characterized in that in pipe case (1) box: the cleaning device further comprises a positioning frame (3) connected with the pipe box (1), a driving device (5) and a cleaning assembly (2) sliding on the positioning frame (3) under the driving of the driving device (5), wherein the driving device (5) is installed on the outer side of the pipe box (1), the driving device (5) comprises a travel increasing device, the driving device (5) comprises a cylinder (51) and a push-out block (52), the travel increasing device comprises a first movable pulley (53) and a second movable pulley (54), the pulley body of the first movable pulley (53) and the pulley body of the second movable pulley (54) are connected by means of a double-wheel connecting rope (57), the double-wheel connecting rope (57) is connected with the push-out block (52), the traction rope on the first movable pulley (53) is connected with one end of an output piece (56), the output piece (56) is connected with the cleaning assembly (2), the push-out block (52) comprises a movable pulley (53) and the two movable pulleys (54) are respectively moved by the double-wheel connecting rope (57) to enable the first movable pulley (53) and the second movable pulley (56) to move a distance (2 a), the cleaning assembly (2) comprises a cleaning row (21), the cleaning row (21) comprises a connecting shaft (211) and cleaning sheets (213) connected with the connecting shaft (211), the cleaning sheets (213) are multiple and are commonly connected to the connecting shaft (211), the cleaning row (21) comprises a connecting block (212), the connecting block (212) comprises a through shaft hole and a mounting groove (2123), the through shaft hole is used for the connecting shaft (211) to pass through, the mounting groove (2123) is used for mounting the cleaning sheets (213), the connecting block (212) comprises a clamping sheet portion (2121) and a base portion (2122) located below the clamping sheet portion (2121), the through shaft hole is formed in the clamping sheet portion (2121), the clamping sheet portion (2121) comprises two clamping sheets, the mounting groove (2123) is formed in the base portion (2), the mounting groove (2123) further comprises a fastening piece (4) used for adjusting tightness between the two clamping sheets, and the fastening piece (2124) is provided with two clamping sheets.
2. A pipe box cleaning apparatus facilitating installation space optimization as defined in claim 1, wherein: comprises a transmission part (4), wherein the transmission part (4) comprises a connecting rope (41) and a sliding vehicle (42), the sliding vehicle (42) is connected with the cleaning assembly (2), and the connecting rope (41) is connected with the driving device (5).
3. A pipe box cleaning apparatus facilitating installation space optimization as claimed in claim 2, wherein: the positioning frame (3) comprises a track (31) installed in the pipe box (1), the sliding vehicle (42) runs on the track (31), the sliding vehicle (42) comprises a vehicle body (421), wheels (424) installed on the vehicle body (421) and a rope through groove (423) formed in the vehicle body (421), and the connecting rope (41) is connected with the vehicle body (421) through the rope through groove (423).
4. A pipe box cleaning apparatus that facilitates installation space optimization as claimed in claim 3, wherein: the rope through groove (423) extends in the vertical direction, and the upper end surface and the lower end surface are arc-shaped rope protection curved surfaces (4231).
5. A pipe box cleaning apparatus that facilitates installation space optimization as claimed in claim 3, wherein: the cleaning device is characterized in that a connecting hole (422) is formed in the center of the vehicle body (421), and the cleaning assembly (2) is connected with the connecting hole (422).
6. A pipe box cleaning apparatus that facilitates installation space optimization as claimed in claim 3, wherein: each wheel (424) comprises a central inner wheel (4241) and outer buckling surfaces (4242) located on both sides of the inner wheel (4241).
7. A pipe box cleaning apparatus facilitating installation space optimization as defined in claim 1, wherein: the cleaning sheet (213) comprises a main sheet (2131), a retention hole (2133) formed in the main sheet (2131), and a frangible groove (2132) formed in the main sheet (2131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850333.6A CN110455116B (en) | 2019-09-10 | 2019-09-10 | Pipe box cleaning equipment beneficial to installation space optimization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850333.6A CN110455116B (en) | 2019-09-10 | 2019-09-10 | Pipe box cleaning equipment beneficial to installation space optimization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110455116A CN110455116A (en) | 2019-11-15 |
| CN110455116B true CN110455116B (en) | 2024-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910850333.6A Active CN110455116B (en) | 2019-09-10 | 2019-09-10 | Pipe box cleaning equipment beneficial to installation space optimization |
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| Country | Link |
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| CN (1) | CN110455116B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728994B (en) * | 2021-01-18 | 2022-10-25 | 安徽瑞格电子科技有限公司 | Water-cooled tube fine hair clearing device of hatching machine |
| CN112976011B (en) * | 2021-03-31 | 2024-04-05 | 华南理工大学 | Extension mechanism of service robot |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202606473U (en) * | 2012-05-15 | 2012-12-19 | 斯科特（南宁）机械有限公司 | Cleaning gun efficient lifting device |
| CN208505100U (en) * | 2018-05-24 | 2019-02-15 | 理昂生态能源股份有限公司 | A kind of air preheater cleaning block-resistant mechanism |
| CN210980980U (en) * | 2019-09-10 | 2020-07-10 | 德清金烨电力科技有限公司 | Do benefit to pipe case cleaning equipment of installation space optimization |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190927812A (en) * | 1909-11-29 | 1910-11-18 | Richard Anthony Adamson | Improvements in Apparatus for Scraping and Cleaning Water Mains, Pipes and the like. |
| CN101216260A (en) * | 2008-01-08 | 2008-07-09 | 杜敦杰 | Sewage water heat exchanger |
| CN104154781A (en) * | 2013-12-05 | 2014-11-19 | 北京大学工学院包头研究院 | Shell and tube heat exchanger |
| CN206891239U (en) * | 2017-06-27 | 2018-01-16 | 常州红太阳药业有限公司 | Fixed tube-sheet exchanger |
-
2019
- 2019-09-10 CN CN201910850333.6A patent/CN110455116B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202606473U (en) * | 2012-05-15 | 2012-12-19 | 斯科特（南宁）机械有限公司 | Cleaning gun efficient lifting device |
| CN208505100U (en) * | 2018-05-24 | 2019-02-15 | 理昂生态能源股份有限公司 | A kind of air preheater cleaning block-resistant mechanism |
| CN210980980U (en) * | 2019-09-10 | 2020-07-10 | 德清金烨电力科技有限公司 | Do benefit to pipe case cleaning equipment of installation space optimization |
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| Publication number | Publication date |
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| CN110455116A (en) | 2019-11-15 |
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