CN209849361U - Mechanical descaling device of shell-and-tube heat exchanger - Google Patents
Mechanical descaling device of shell-and-tube heat exchanger Download PDFInfo
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- CN209849361U CN209849361U CN201920425308.9U CN201920425308U CN209849361U CN 209849361 U CN209849361 U CN 209849361U CN 201920425308 U CN201920425308 U CN 201920425308U CN 209849361 U CN209849361 U CN 209849361U
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- tube heat
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Abstract
The utility model discloses a mechanical scale removal device of shell and tube heat exchanger, including the mobile device, cleaning device and transposition device, the mobile device includes driving motor, driving sprocket, driven sprocket and drive chain, driving motor fixes driving sprocket, the driving sprocket meshing is in driving chain's one end, driven sprocket is connected in the inside other end inner gearing of driving chain, cleaning device includes platform and U type groove, the inboard fixedly connected with moving sprocket of platform, link to each other through the eccentric shaft between the moving sprocket, platform and U type groove connection, the transposition device includes motor and lead screw, the motor drives the lead screw and removes, be equipped with U type fork board on the lead screw, the curb plate phase-match in U type fork board and U type groove. The utility model discloses can realize scrubbing heat exchanger section of jurisdiction surface under the circumstances of not shutting down, can wash fast partial tube bank in turn, can also emphasize the washing to the more serious region of scale deposit through the program setting.
Description
Technical Field
The utility model mainly relates to a mechanical descaling device of shell and tube heat exchanger.
Background
With the increasing emphasis of the country on the environmental protection industry, in recent years, the environmental protection agency has continuously issued various regulatory standards for controlling sewage discharge, such as: before the sewage is discharged, pretreatment is carried out.
The shell-and-tube heat exchanger is applied to an MVR evaporation process in the field of environmental protection, wherein the characteristics of the internal environment of the MVR are as follows: the temperature is high, and the ammonia nitrogen is higher, and BOD is lower, and COD is higher, and the filtration liquid sprays downwards by the eminence, contains tiny suspended particles in the filtration liquid, and the heat exchange tube scale deposit is fast, and the scaling matter composition is complicated. After the pretreatment process is adopted, ammonia nitrogen in percolate is still high, BOD is low, COD is high, fine suspended particles exist, in the evaporation process inside MVR, scale which is difficult to dissolve can be condensed on the surface of a heat exchange tube, the heat exchange rate of the heat exchange tube after scaling is greatly reduced, the evaporation efficiency is seriously influenced, even a bridge is probably built between the heat exchange tubes, and normal evaporation operation cannot be carried out.
The above disadvantages need to be solved.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a mechanical descaling device of a shell-and-tube heat exchanger.
The technical scheme of the utility model as follows: a mechanical descaling device of a shell-and-tube heat exchanger is characterized by comprising a moving device, a cleaning device and a transposition device,
the moving device comprises a driving motor, a driven chain wheel and a driving chain, two driving chain wheels are fixed on an output shaft of the driving motor, the driving chain wheels are meshed in one end of the driving chain, the other end inside the driving chain is meshed with the driven chain wheel in an inner meshing way,
the cleaning device comprises a platform and a U-shaped groove, wherein a movable chain wheel is fixedly connected to the inner side of the platform, the platform moves on the driving chain and drives the movable chain wheel to rotate, the movable chain wheels are connected through an eccentric shaft, the platform is detachably connected with the U-shaped groove, a brush holder is arranged below a side plate of the U-shaped groove, the eccentric shaft is positioned between the side plate and the brush holder,
the transposition device comprises a motor and a screw rod, the motor drives the screw rod to move, a U-shaped fork plate is arranged on the screw rod, and the U-shaped fork plate is matched with the side plate.
According to the structure of the utility model discloses, its still characterized in that, be connected with the sprocket main shaft between the driven sprocket.
According to above-mentioned structure the utility model discloses, its still characterized in that, the below meshing of mobile sprocket is connected with the removal chain, just the mobile sprocket is in rotate on the removal chain, the removal chain is installed in the removal guide rail of below.
According to the structure of the utility model discloses, its still characterized in that, the platform pass through the fixed pin with drive chain can dismantle the connection.
According to above-mentioned structure the utility model discloses, its still characterized in that, link to each other through the dovetail guide rail between the platform, install the fixed block on the dovetail guide rail, the dovetail guide rail with pass through between the U type groove the fixed block links to each other.
According to the structure of the utility model discloses, its still characterized in that, be fixed with a plurality of cleaning brush boards on the brush yoke, the cleaning brush board is placed on the board of placing of bottom.
Further, the placing plate is L-shaped.
According to the structure of the utility model, its effect lies in:
1. the utility model discloses according to the environmental characteristics of locating, adopted corrosion-resistant, high temperature resistant, acid and alkali-resistance's material and seal structure, adopted two servo motor drive sprocket and lead screw motion, realize that the clean scrubbing brush carries out the circular motion to the effect of two direction movements simultaneously, drives clean brush board through the eccentric shaft on the mobile sprocket to realize the aversion motion of clean brush board, and then clean different heat exchanger section of jurisdiction.
2. According to the environmental characteristics of the equipment, the motor is arranged on the outer side of the heat exchanger tube shell, and the device main body is arranged in the heat exchanger shell, so that the motor is more convenient to replace, and the internal space is effectively saved.
3. The utility model discloses can realize scrubbing heat exchanger section of jurisdiction surface under the circumstances of not shutting down, can wash fast partial tube bank in turn, can also emphasize the washing to the more serious region of scale deposit through the program setting.
4. The utility model discloses simple structure, convenient operation, it is convenient to use, safe and reliable, the availability factor is high simultaneously, can effectually save clean time, increases the life of heat exchanger, can carry out large batch production and use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a side view of the present invention.
Fig. 5 is a schematic diagram of the present invention installed in a heat exchanger.
In the figure: 110. a drive motor; 111. a drive sprocket; 120. a drive chain; 130. a driven sprocket; 131. a sprocket main shaft; 210. a platform; 211. a dovetail groove guide rail; 212. a moving sprocket; 213. an eccentric shaft; 220. moving the chain; 230. a fixed block; 240. a U-shaped groove; 241. a brush holder; 242. cleaning the brush plate; 243. a side plate; 250. a moving guide rail; 260. placing the plate; 310. a motor; 320. a screw rod; 321, U-shaped fork plate.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
As shown in fig. 1-4, the mechanical descaling device for a shell-and-tube heat exchanger of the present invention comprises a moving device, a cleaning device and a position changing device.
The moving device comprises a driving motor 110, a driving chain 120 and a driven chain wheel 130, wherein two driving chain wheels 111 are fixed on an output shaft of the driving motor 110, the driving chain wheels 111 are meshed in one end of the driving chain 120, and the other end inside the driving chain 120 is meshed in the driven chain wheel 130.
Two driving chain wheels 111 are arranged on the driving motor 110, an interval is arranged between the two driving chain wheels 111, the driving motor 110 rotates and drives the driving chain wheels 111 to rotate, the driving chain wheels 111 rotate to respectively drive the driving chains 120 meshed with the driving chain wheels to rotate, meanwhile, the two driven chain wheels 130 at the other ends of the driving chains 120 and the driving chain wheels 111 move synchronously, a chain wheel main shaft 131 is connected between the two driven chain wheels 130, a device capable of moving horizontally is formed by the structure, and heat exchanger tube pieces needing to be cleaned are arranged on the lower portion between the two driving chains.
The cleaning device comprises a platform 210 and a U-shaped groove 240, wherein a movable chain wheel 212 is fixedly connected to the inner side of the platform 210, the platform 210 moves on a driving chain 120 and drives the movable chain wheel 212 to rotate, the movable chain wheels 212 are connected through an eccentric shaft 213, the platform 210 is detachably connected with the U-shaped groove 240, a brush holder 241 is arranged below a side plate 243 of the U-shaped groove 240, and the eccentric shaft 213 is located between the side plate 243 and the brush holder 241.
The driving chain 120 is detachably connected with a platform 210 through a fixing pin, the inner side of the platform 210 is fixedly connected with a movable chain wheel 212, the two movable chain wheels 212 are opposite in position, an eccentric shaft 213 is connected between the two movable chain wheels, the lower part of the movable chain wheel 212 is meshed with a movable chain 220, the platform 210 is driven to move by the rotation of the driving chain 120, the movable chain wheel 212 is driven by the movement of the platform 210 to rotate on the movable chain 220, the two movable chain wheels 212 synchronously rotate, and the movable chain 220 is installed in a movable guide rail 250 below.
The two platforms 210 are fixedly connected through a dovetail groove guide rail 211 to keep synchronous movement, a fixing block 230 is installed on the dovetail groove guide rail 211, the dovetail groove guide rail 211 is fixed with a U-shaped groove 240 with a brush holder 241 by the fixing block 230, so that the brush holder 241 does not swing left and right during movement, a plurality of cleaning brush plates 242 are fixed on the brush holder 241, further, the cleaning brush plates 242 are placed on a placing plate 260 at the bottom, the placing plate 260 is L-shaped, and the L-shaped placing plate 260 can enable the cleaning brush plates 242 to lean when the cleaning is stopped, so that the cleaning brush plates are not prone to deflection. A gap is formed between the side plate 243 of the U-shaped groove 240 and the brush holder 241, wherein the eccentric shaft 213 penetrates through the gap, and the eccentric shaft 213 is positioned inside the side plate 243, so that the eccentric shaft 213 does not move out of the side plate 243 when the movable sprocket 212 rotates, and drives the eccentric shaft 213 to form an eccentric circle motion track, thereby ensuring that the cleaning brush 242 can move vertically.
Advantageously, the platform 210 reciprocates in the horizontal direction, the cleaning brush plate 242 reciprocates in the vertical direction, and the cleaning brush plate 242 can realize a horizontal and vertical movement, and can effectively contact the heat exchange tube below and scrub dirt attached to the heat exchange tube.
The transposition device comprises a motor 310 and a screw rod 320, the motor 310 drives the screw rod 320 to move, a U-shaped fork plate 321 is arranged on the screw rod 320, and the U-shaped fork plate 321 is matched with the side plate 243.
The motor 310 is arranged outside one side close to the driven chain wheel 130, the output end of the motor 310 is connected with the screw rod 320, the motor 310 drives the screw rod 320 to move, the U-shaped fork plate 321 is connected onto the screw rod 320, when the platform 210 moves to one end of the driven chain wheel 130, the driving motor 110 stops working, the side plate 243 of the U-shaped groove 240 is inserted into the U-shaped fork plate 321, the motor 310 drives the screw rod 320 to move the U-shaped groove 240 to the position of the next cleaning brush plate 242, the driving motor 110 continues to drive the platform 210 to horizontally reciprocate, after the platform 210 completes one reciprocating motion, the cleaning brush plate 242 is stopped at the placing plate 260 to wait for the next working, and the effect of circularly cleaning the heat exchanger tube piece is achieved.
As shown in fig. 5, it is the schematic diagram of the present invention disposed in the shell-and-tube heat exchanger, because of the high temperature and high humidity inside the MVR, the chemical composition in water and gas is complex, and the driving motor 110 and the motor 310 must be placed outside the MVR.
The driving motor and the motor in the embodiment are servo motors, the line changing time can be freely realized through the control of the two motors, certain tube bundles can be cleaned in the process of cleaning for many times, and the tube bundles which are not easy to scale can be brushed for a long time. This can be achieved by monitoring the feedback current of the servo motor to obtain the current load, and the area with larger load indicates that the fouling is relatively serious, and the brushing should be emphasized. Detecting the feedback current of the servo motor belongs to the known technology in the field, and therefore, the description thereof is omitted.
The beneficial effects of the utility model reside in that:
1. the utility model discloses according to the environmental characteristics of locating, adopted corrosion-resistant, high temperature resistant, acid and alkali-resistance's material and seal structure, adopted two servo motor drive sprocket and lead screw motion, realize that the clean scrubbing brush carries out the circular motion to the effect of two direction movements simultaneously, drives clean brush board through the eccentric shaft on the mobile sprocket to realize the aversion motion of clean brush board, and then clean different heat exchanger section of jurisdiction.
2. According to the environmental characteristics of the equipment, the motor is arranged on the outer side of the heat exchanger tube shell, and the device main body is arranged in the heat exchanger shell, so that the motor is more convenient to replace, and the internal space is effectively saved.
3. The utility model discloses can realize scrubbing heat exchanger section of jurisdiction surface under the circumstances of not shutting down, can wash fast partial tube bank in turn, can also emphasize the washing to the more serious region of scale deposit through the program setting.
4. The utility model discloses simple structure, convenient operation, it is convenient to use, safe and reliable, the availability factor is high simultaneously, can effectually save clean time, increases the life of heat exchanger, can carry out large batch production and use.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
The above exemplary description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above manner, and various improvements made by the method concept and technical solution of the present invention or by directly applying the concept and technical solution of the present invention to other occasions without improvement are all within the protection scope of the present invention.
Claims (7)
1. A mechanical descaling device of a shell-and-tube heat exchanger is characterized in that: comprises a moving device, a cleaning device and a transposition device,
the moving device comprises a driving motor, a driven chain wheel and a driving chain, two driving chain wheels are fixed on an output shaft of the driving motor, the driving chain wheels are meshed in one end of the driving chain, the other end inside the driving chain is meshed with the driven chain wheel in an inner meshing way,
the cleaning device comprises a platform and a U-shaped groove, wherein a movable chain wheel is fixedly connected to the inner side of the platform, the platform moves on the driving chain and drives the movable chain wheel to rotate, the movable chain wheels are connected through an eccentric shaft, the platform is detachably connected with the U-shaped groove, a brush holder is arranged below a side plate of the U-shaped groove, the eccentric shaft is positioned between the side plate and the brush holder,
the transposition device comprises a motor and a screw rod, the motor drives the screw rod to move, a U-shaped fork plate is arranged on the screw rod, and the U-shaped fork plate is matched with the side plate.
2. A mechanical descaling device for shell-and-tube heat exchangers according to claim 1, characterized in that: and a chain wheel main shaft is connected between the driven chain wheels.
3. A mechanical descaling device for shell-and-tube heat exchangers according to claim 1, characterized in that: the lower part of the movable chain wheel is connected with a movable chain in a meshing manner, the movable chain wheel rotates on the movable chain, and the movable chain is arranged in a movable guide rail below.
4. A mechanical descaling device for shell-and-tube heat exchangers according to claim 1, characterized in that: the platform passes through the fixed pin with drive chain can dismantle the connection.
5. A mechanical descaling device for shell-and-tube heat exchangers according to claim 1, characterized in that: the platform is connected through a dovetail guide rail, a fixed block is installed on the dovetail guide rail, and the dovetail guide rail is connected with the U-shaped groove through the fixed block.
6. A mechanical descaling device for shell-and-tube heat exchangers according to claim 1, characterized in that: a plurality of cleaning brush plates are fixed on the brush frame and are placed on the placing plate at the bottom.
7. A mechanical descaling device for shell-and-tube heat exchangers according to claim 6, characterized in that: the placing plate is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425308.9U CN209849361U (en) | 2019-03-25 | 2019-03-25 | Mechanical descaling device of shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425308.9U CN209849361U (en) | 2019-03-25 | 2019-03-25 | Mechanical descaling device of shell-and-tube heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN209849361U true CN209849361U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920425308.9U Active CN209849361U (en) | 2019-03-25 | 2019-03-25 | Mechanical descaling device of shell-and-tube heat exchanger |
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| CN (1) | CN209849361U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237842A (en) * | 2020-03-09 | 2020-06-05 | 康健 | Auxiliary heating device for heat storage tank of heating unit |
| CN113969550A (en) * | 2021-12-12 | 2022-01-25 | 陈宬 | Warning device based on job site management usefulness |
-
2019
- 2019-03-25 CN CN201920425308.9U patent/CN209849361U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237842A (en) * | 2020-03-09 | 2020-06-05 | 康健 | Auxiliary heating device for heat storage tank of heating unit |
| CN111237842B (en) * | 2020-03-09 | 2021-05-18 | 康健 | Auxiliary heating device for heat storage tank of heating unit |
| CN113969550A (en) * | 2021-12-12 | 2022-01-25 | 陈宬 | Warning device based on job site management usefulness |
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| GR01 | Patent grant | ||
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Address after: No. c1-29, No. 3, Wenhua West Road, baishihuan village, three townships, Zhongshan City, Guangdong Province (residence declaration) newly added a new business place, which is No. 5, No. 30, huangwukeng Road, Wushi village, No. 3 Township, Zhongshan City (one photo multi address) Patentee after: ZHONGSHAN GONGCHUANG MACHINERY EQUIPMENT Co.,Ltd. Address before: 528400 No. 30 Huangwukeng Road, Wushicun Township, Zhongshan City, Guangdong Province Patentee before: ZHONGSHAN GONGCHUANG MACHINERY EQUIPMENT Co.,Ltd. |