CN213543287U - Heat exchange tube cleaning device and heat exchanger - Google Patents
Heat exchange tube cleaning device and heat exchanger Download PDFInfo
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- CN213543287U CN213543287U CN202021098476.0U CN202021098476U CN213543287U CN 213543287 U CN213543287 U CN 213543287U CN 202021098476 U CN202021098476 U CN 202021098476U CN 213543287 U CN213543287 U CN 213543287U
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- heat exchange
- exchange tube
- spiral
- cleaning device
- tube cleaning
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Abstract
The utility model provides a heat exchange tube cleaning device and a heat exchanger, which comprises a spiral link, a bracket, a rotating shaft and a ceramic bearing, wherein the spiral link comprises a spiral part and a flat part which are integrally formed; one end of the flat plate part, which is far away from the spiral part, is provided with a concave part; the rotating shaft comprises a rotating rod and a protruding part, the protruding part is arranged at one end of the rotating rod, the shape of the protruding part is matched with that of the recessed part on the flat plate part, and the protruding part is embedded in the recessed part; the support comprises supporting parts, fixing parts, connecting ribs and connecting rods, wherein the number of the fixing parts is at least two, two adjacent fixing parts are connected through the connecting rods to form a cylindrical net shape, the supporting parts and the fixing parts are fixedly connected through the connecting ribs, and a through hole is formed in the middle of the supporting part; the ceramic bearing is embedded in the through hole, and the rotating rod penetrates through the ceramic bearing. The utility model discloses do not need external power drive, can clear away the dirt in the heat transfer coil.
Description
Technical Field
The utility model relates to a clean technical field of pipeline, concretely relates to heat exchange tube cleaning device and heat exchanger.
Background
The heat exchanger (condenser) of the waste heat generator set in China mostly adopts a tubular heat exchanger, after long-term operation, because water quality is not clean, the inner wall of a heat exchange tube pipeline is attached with a lot of dirt, the inner diameter of the pipeline is reduced along with the lapse of time, the wall thickness is increased, the flow velocity of fluid in the pipeline is reduced on the one hand, and on the other hand, the heat exchange efficiency of the heat exchange tube is seriously influenced, so that the vacuum degree of the side of a steam turbine is reduced, the design requirement cannot be met. The existing treatment mode mostly adopts a mode of manually cleaning a heat exchange pipe after the heat exchange pipe is disassembled, or directly replacing the heat exchange pipe or even integrally replacing a condenser, so that the power generation cost is increased, and the power generation efficiency is reduced. Therefore, how to avoid the accumulation of dirt in the condenser pipeline is a problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a heat exchange tube cleaning device and heat exchanger, flow the cleaning device who drives in the heat exchange tube through the cooling water and rotate, do not need external power, on the one hand, the cooling water flow state in the heat exchange tube is changed into the turbulent flow by the laminar flow, strengthens the heat transfer effect of heat exchange tube, and on the other hand constantly scrapes the heat exchange tube inner wall and sweeps, prevents that the dirt from adhering to the accumulation at the heat transfer pipeline inner wall, increases the heat exchange efficiency of heat exchange tube equally to improve the thermal efficiency of whole circulation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heat exchange tube cleaning device is composed of a device body, wherein the device body comprises a spiral link, a support, a rotating shaft and a ceramic bearing, the spiral link comprises a spiral part and a flat plate part, and the spiral part and the flat plate part are integrally formed;
one end of the flat plate part, which is far away from the spiral part, is provided with a concave part; the rotating shaft comprises a rotating rod and a protruding part, the protruding part is arranged at one end of the rotating rod, the shape of the protruding part is matched with that of the recessed part on the flat plate part, and the protruding part is embedded in the recessed part;
the support comprises at least two fixing parts, two adjacent fixing parts are connected through the connecting rod to form a cylindrical net shape, the supporting parts and the fixing parts are fixedly connected through the connecting ribs, and a through hole is formed in the middle of the supporting part; and a ceramic bearing is embedded in the through hole, and the rotating rod penetrates through the ceramic bearing.
The spiral link is made of hard wear-resistant PC material.
The depressed part is the screw hole, the bellying is the threaded rod.
The depressed part is polygonal recess, the bellying shape with recess on the depressed part suits, the bellying with depressed part interference fit.
The fixing part is circular or polygonal and is fixedly connected with the heat exchange tube.
The spiral side face of the spiral part of the spiral link is provided with hard bristles used for abutting against the inner wall of the heat exchange tube.
The supporting part is positioned in the center of the fixing part.
The heat exchanger comprises a shell, wherein a steam inlet is formed in the top of the shell, a condensed water outlet is formed in the bottom of the shell, a heat exchange tube is arranged in the shell and comprises a heat exchange tube cleaning device, and the heat exchange tube cleaning device is arranged inside the heat exchange tube.
And one end of the heat exchange tube is provided with a cooling water inlet, the other end of the heat exchange tube is provided with a cooling water outlet, the cooling water inlet and the cooling water outlet are respectively positioned at the lower end and the upper end of the shell at the same side, and the cooling water inlet and the cooling water outlet are connected through a plurality of heat exchange tubes connected in parallel.
The utility model discloses compare prior art's beneficial effect and lie in: install heat exchange tube cleaning device additional in tubular heat exchanger's every heat exchange tube after, when equipment operation, do not need external power drive, the spiral link of rivers power drive of utilizing circulating fluid self rotates, the mobile state of pivoted spiral link with cooling water changes into the turbulent flow, on the one hand, make free dirt granule be difficult to the polymer and form, on the other hand also can increase the heat transfer effect of heat exchange tube, and spiral link adopts the PC material, the texture is hard, can scrape the heat exchange pipeline inner wall and sweep, in time clear away the dirt of will adhering to the heat exchange tube inner wall, prevent that the dirt from accumulating at the inner wall, the heat exchange efficiency of heat exchange tube also can be increased equally. The spiral link is made of hard PC materials, is wear-resistant and has long service life. Set up ceramic bearing between pivot and the support, the wearability is high, and is difficult for corroding, very big increase the holistic life of cleaning device. In addition, the hard brush hair is arranged on the spiral side wall of the spiral link, so that the scraping effect is increased, and the abrasion to the inner wall of the heat exchange pipe can be reduced; and novel structure, convenient to use, energy-concerving and environment-protective, excellent in use effect, the practicality is strong, is worth using widely.
Drawings
Fig. 1 is a schematic view of the overall structure of the heat exchanger of the present invention;
fig. 2 is a cross-sectional view of the heat exchanger of the present invention;
fig. 3 is a schematic structural view of a heat exchange tube cleaning device of the present invention;
fig. 4 is an exploded view of a heat exchange tube cleaning device of the present invention;
FIG. 5 is a schematic view of a spiral link of a heat exchange tube cleaning device of the present invention;
fig. 6 is a schematic view of a rotating shaft of a heat exchange tube cleaning device of the present invention;
fig. 7 is a schematic view of a ceramic bearing of a heat exchange tube cleaning device of the present invention;
fig. 8 is a schematic view of a bracket of a heat exchange tube cleaning device of the present invention;
fig. 9 is a schematic structural view after the assembly of the present invention is completed.
FIG. 10 is a flow chart of the manufacturing process of the spiral link of the present invention.
In the figure: the steam generator comprises a shell 1, a steam inlet 21, a condensed water outlet 22, a cooling water inlet 31, a cooling water outlet 32, a heat exchange pipe 33, a spiral band 41, a spiral part 411, a flat plate part 412, a concave part 413, a bracket 42, a supporting part 421, a fixing part 422, a through hole 423, a connecting rib 424, a connecting rod 425, a rotating shaft 43, a convex part 431, a rotating rod 432 and a ceramic bearing 44.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1 to 9, the heat exchange tube cleaning device comprises a spiral tie 41, a bracket 42, a rotating shaft 43 and a ceramic bearing 44, wherein the spiral tie 41 comprises a spiral part 411 and a flat part 412, the spiral part 411 and the flat part 412 are integrally made of a plate material, the plate material is made of a hard wear-resistant PC material, and one end of the flat part 412, which is far away from the spiral part, is provided with a recessed part 413. The rotating shaft 43 comprises a rotating rod 432 and a protruding part 431, the protruding part 431 is arranged at one end of the rotating rod 432 and is matched with the recessed part 413 on the flat plate part 412 in shape, and the rotating shaft 43 and the spiral button 41 are connected with the recessed part 413 through the protruding part 431. The support 42 includes supporting portion 421, fixed part 422, splice bar 424, connecting rod 425, and fixed part 422 quantity is two, connects through connecting rod 425 between two fixed parts 422 and forms the section of thick bamboo netted, and supporting portion 421 is located the fixed part 422 center, through splice bar 424 fixed connection between supporting portion 421 and the fixed part 422, is provided with through-hole 423 in the middle of the supporting portion 421. The rotating rods 432 of the rotating shaft 43 respectively pass through the through holes 423 of the two supporting parts 421, a ceramic bearing 44 is arranged between the rotating rods 432 and the supporting parts 421, and the rotating rods 432 and the supporting parts 421 are in rotating fit. When cooling water in the heat exchange tube flows through the spiral bands 41, original laminar flow is changed into turbulent flow under the action of the spiral bands 41 and spiral blades, dirt particles in the cooling water are prevented from being gathered, dirt is not easy to adhere to the inner wall of the tube, the cooling water in the turbulent flow state can be in full contact with the inner wall of the heat exchange tube, heat transferred by the heat exchange tube is absorbed in time, and the heat efficiency of the heat exchange tube can be obviously increased. In addition, the spiral side wall of spiral tie 41 contacts with the heat exchange tube inner wall, even there is a small amount of dirt attached to the heat exchange tube inner wall, also can scrape at spiral tie 41 rotation in-process and sweep, even clear up the heat exchange tube inner wall, prevent that the dirt from attaching at the heat exchange tube inner wall and reducing heat and transmit to the cooling water from the heat exchange tube to increase the heat transfer efficiency of heat exchange tube. The support 42 can increase the stability of the spiral tie.
The recessed portion 413 may be a threaded hole, the protruding portion 431 is a threaded rod, the two are in threaded engagement, and the fastening direction of the threads is opposite to the rotation direction of the spiral button 41, so as to increase the reliability of the threaded connection and prevent the spiral button 41 from being separated from the rotating shaft 43 during the rotation process. The recess 413 may also be a triangular, quadrangular or other polygonal groove, in this embodiment, the recess is a quadrangular shape, the shape of the protrusion 431 is adapted to the groove of the recess 413, and the protrusion 431 and the recess 413 are in interference fit, so as to further increase the firmness of the connection between the spiral tie 41 and the rotating shaft 43.
The fixing part 422 may be circular, triangular, quadrangular or other polygonal shapes, and is fixedly connected to the heat exchange tube, and the polygonal fixing part 422 may reduce the cross-sectional area of the bracket 42, reduce the flow resistance of the cooling water, increase the flow speed, remove discrete dirt in time, and further prevent the accumulation of dirt.
The ceramic bearing 44 may be a ceramic ball bearing or a cylindrical ceramic sleeve. The ceramic bearing is wear-resistant, corrosion-resistant and not easy to damage, and greatly prolongs the service life of parts. Ceramic bearing 44 sets up to the tube-shape of the interior circle of foreign side, and the hole is the round hole, and the lateral surface sets up to regular polygon and through-hole 423 shape phase match, has increased ceramic bearing 44 and support portion 421's stability, bull stick 432 pass the round hole with ceramic bearing 44 rotates and is connected.
The spiral side of the spiral part 411 of the spiral link 41 is evenly provided with hard bristles which are abutted against the inner wall of the heat exchange tube. Set up stereoplasm brush hair in the outside of spiral tie 41, can avoid the direct and heat exchange tube inner wall contact friction of PC material of stereoplasm, reduce the wearing and tearing to the heat exchange tube, the brush hair can also increase the clean effect to the pipeline inner wall moreover.
As shown in fig. 1-2, the heat exchanger comprises a casing 1, a steam inlet 21 is arranged at the top of the casing 1, a condensed water outlet 22 is arranged at the bottom of the casing 1, a heat exchange pipe 33 is arranged in the casing 1, and a heat exchange pipe cleaning device 4 is arranged inside the heat exchange pipe 33. One end of the heat exchange tube 33 is provided with a cooling water inlet 31, the other end of the heat exchange tube 33 is provided with a cooling water outlet 32, the cooling water inlet 31 and the cooling water outlet 32 are respectively positioned at the lower end and the upper end of one side of the shell 1, the cooling water inlet 31 and the cooling water outlet 32 are formed by a plurality of parallel heat exchange tubes 33, the part of the heat exchange tube 33 positioned on the shell 1 is in an S-shaped multi-layer folded shape, the contact area of steam and the heat exchange tube can be greatly increased through the S-shaped multi-layer folded heat exchange tube, and the heat exchange efficiency. The heat exchange tube cleaning device can be manufactured by bending after being installed in the heat exchange tube in advance in a partitioning manner.
As shown in figure 10, according to the characteristics of high hardness and short cooling time of PC materials, a production process method of spiral links is successfully developed, customized tape pieces enter a heater through a guide device, then the tape pieces are manufactured into links with required pitches through a forming die, then the links are cooled and shaped, conveyed to a measuring and cutting structure and automatically cut according to the specified length to complete the manufacture of finished products, and the method can be used for large-scale continuous production and small-scale intermittent production.
The working principle is as follows: during the use, cooling water gets into parallel S-shaped multilayer folding heat exchange tube 33 from cooling water inlet 31, and under the effect of the impact force of cooling water, spiral band 41 rotates, flows the disturbance with the cooling water and is the turbulent flow, and simultaneously, the spiral side of spiral band 41 scrapes the heat exchange tube inner wall and sweeps, prevents that the dirt from adhering to at the heat exchange tube inner wall, reinforcing heat transfer effect. The cooling water flows through the S-shaped folded heat exchange tubes 33 from bottom to top in sequence, the heat transferred from the heat exchange tubes 33 is fully absorbed, and finally the cooling water is discharged from the cooling water outlet 32 at the upper end of the shell, so that the dirt in the tubes is cleaned, and the overall heat exchange efficiency of the heat exchanger is improved.
The above description is only the preferred embodiment of the present invention, but the present invention is not limited to the above-mentioned specific embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (9)
1. A heat exchange tube cleaning device is composed of a device body, and is characterized in that the device body comprises a spiral tie (41), a bracket (42), a rotating shaft (43) and a ceramic bearing (44), wherein the spiral tie (41) comprises a spiral part (411) and a flat plate part (412), and the spiral part (411) and the flat plate part (412) are integrally formed;
a concave part (413) is arranged at one end, far away from the spiral part (411), of the flat plate part (412); the rotating shaft (43) comprises a rotating rod (432) and a protruding part (431), the protruding part (431) is arranged at one end of the rotating rod (432) and is matched with a recessed part (413) on the flat plate part (412) in shape, and the protruding part (431) is embedded in the recessed part (413);
the support (42) comprises supporting parts (421), fixing parts (422), connecting ribs (424) and connecting rods (425), the number of the fixing parts (422) is at least two, the adjacent two fixing parts (422) are connected through the connecting rods (425) to form a cylindrical net shape, the supporting parts (421) and the fixing parts (422) are fixedly connected through the connecting ribs (424), and a through hole (423) is formed in the middle of the supporting part (421); a ceramic bearing (44) is embedded into the through hole (423), and the rotating rod (432) penetrates through the ceramic bearing (44).
2. The heat exchange tube cleaning device as recited in claim 1, wherein the spiral tie (41) is made of hard wear-resistant PC material.
3. The heat exchange tube cleaning device as recited in claim 1, wherein the recess (413) is a screw hole and the protrusion (431) is a screw rod.
4. The heat exchange tube cleaning device according to claim 1, wherein the recess (413) is a polygonal groove, the protrusion (431) is shaped to fit the groove on the recess (413), and the protrusion (431) and the recess (413) are in interference fit.
5. The heat exchange tube cleaning device as recited in claim 1, wherein the fixing portion (422) is circular or polygonal in shape and is fixedly connected with the heat exchange tube.
6. The heat exchange tube cleaning device as recited in claim 1, wherein the spiral side of the spiral part (411) of the spiral tie (41) is uniformly provided with hard bristles for abutting against the inner wall of the heat exchange tube.
7. The heat exchange tube cleaning device as recited in claim 1, wherein the supporting portion (421) is located at the center of the fixing portion (422).
8. A heat exchanger comprising a housing (1), the top of the housing (1) being provided with a steam inlet (21), the bottom of the housing (1) being provided with a condensed water outlet (22), and a heat exchange tube (33) being provided in the housing (1), characterized in that a heat exchange tube cleaning device as claimed in any one of claims 1-7 is included, the heat exchange tube cleaning device (4) being provided inside the heat exchange tube (33).
9. The heat exchanger according to claim 8, wherein the heat exchange tubes (33) are provided with a cooling water inlet (31) at one end and a cooling water outlet (32) at the other end, the cooling water inlet (31) and the cooling water outlet (32) are respectively positioned at the lower end and the upper end of the same side of the shell (1), and the cooling water inlet (31) and the cooling water outlet (32) are connected through a plurality of heat exchange tubes (33) connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021098476.0U CN213543287U (en) | 2020-06-15 | 2020-06-15 | Heat exchange tube cleaning device and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021098476.0U CN213543287U (en) | 2020-06-15 | 2020-06-15 | Heat exchange tube cleaning device and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213543287U true CN213543287U (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021098476.0U Active CN213543287U (en) | 2020-06-15 | 2020-06-15 | Heat exchange tube cleaning device and heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213543287U (en) |
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2020
- 2020-06-15 CN CN202021098476.0U patent/CN213543287U/en active Active
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