CN114812262A - Cleaning device for plate evaporative condenser - Google Patents
Cleaning device for plate evaporative condenser Download PDFInfo
- Publication number
- CN114812262A CN114812262A CN202110126198.8A CN202110126198A CN114812262A CN 114812262 A CN114812262 A CN 114812262A CN 202110126198 A CN202110126198 A CN 202110126198A CN 114812262 A CN114812262 A CN 114812262A
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- Prior art keywords
- plate
- heat exchange
- cleaning device
- evaporative condenser
- shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004140 cleaning Methods 0.000 title claims abstract description 43
- 230000008020 evaporation Effects 0.000 claims abstract description 28
- 238000001704 evaporation Methods 0.000 claims abstract description 28
- 241000736911 Turritella communis Species 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000007790 scraping Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F28G1/08—Non-rotary, e.g. reciprocated, appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The cleaning device for the plate evaporative condenser comprises heat exchange plates, a rotary rubbing plate assembly and a rubbing plate shaft, wherein two ends of the rubbing plate shaft are supported and fixed on an outer frame bracket by utilizing a bearing seat, and the outer frame bracket is welded and fixed on an evaporation tower shell; the plate drawing shaft penetrates through a plate bundle consisting of a plurality of heat exchange plates, an eccentric hole is formed in the position of the axial line of each heat exchange plate, and the plate drawing shaft and the eccentric hole are further ensured to be coaxial by utilizing a pressing ring; one end of the plate-drawing shaft is connected with the electric drive device through a coupler; the rotary bracket plate assembly is arranged at a position spaced between the two heat exchange plates. The cleaning device disclosed by the invention is simple in structure and convenient for later maintenance, can be used for cleaning the heat exchange plate inside the closed evaporation tower, does not need to be stopped, and improves the working efficiency of the evaporation tower.
Description
Technical Field
The invention relates to the technical field of cleaning inside a closed evaporation tower, in particular to a cleaning device for a plate evaporative condenser.
Background
When the closed evaporation tower is used for treating industrial wastewater, particularly in the treatment process of high-salt and high-organic industrial wastewater, the closed evaporation tower has higher requirements on the heat exchange efficiency, the structural strength and the like of the evaporation tower. The plate-fin heat exchanger has the advantages of small plate-fin distance, small equivalent diameter of a flow channel, high heat transfer efficiency, compact structure and the like, so that the plate-fin heat exchanger is used in a closed evaporation tower. When the plate-type heat exchanger is applied to industrial wastewater treatment, because impurity components in the wastewater are complex, the temperature change can cause some components originally dissolved in the wastewater to be separated out and deposited on the surface of the heat exchange plate, and in addition, some suspended substances or process corrosion products in the wastewater are also easily deposited on the surface of the heat exchange plate. With the continuous proceeding of evaporation and condensation, the deposits are gradually accumulated and converted into high-adhesion cokes from initial film-state dirt, the total thermal resistance of the heat exchanger is increased, the heat transfer coefficient of the heat exchange plates is reduced, and the heat transfer efficiency of the heat exchanger is seriously influenced. Therefore, in order to reduce the design error of the heat exchanger, the heat exchange efficiency of the closed evaporation tower is further ensured to meet the process requirements, and the heat exchange plates in the evaporation tower are timely cleaned.
Because the evaporation tower system is a closed structure with multi-loop heat exchange, the treatment efficiency of the system can be greatly reduced by repeated shutdown and cleaning. In general, the cleaning methods such as mechanical arm type and guide rail horizontal pushing type have various disadvantages due to the internal space limitation and the influence on the heat exchange area, and the like, and cannot meet the requirement of efficient cleaning of the system.
Disclosure of Invention
The invention provides a cleaning device for a plate evaporative condenser, which can solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cleaning device for a plate evaporative condenser comprises heat exchange plates, a rotary rubbing plate assembly and a rubbing plate shaft, wherein two ends of the rubbing plate shaft are supported and fixed on an outer frame bracket by utilizing a bearing seat, and the outer frame bracket is welded and fixed on an evaporation tower shell;
the plate drawing shaft penetrates through a plate bundle consisting of a plurality of heat exchange plates, an eccentric hole is formed in the position of the axial line of each heat exchange plate, and the plate drawing shaft and the eccentric hole are further ensured to be coaxial by utilizing a pressing ring;
one end of the plate-drawing shaft is connected with the electric drive device through a coupler;
the rotary bracket plate assembly is arranged at a position spaced between the two heat exchange plates.
Furthermore, the rotary bracket assembly comprises a cleaning rubber strip, a supporting bracket, a positioning shaft sleeve and a locking nut;
a key groove is formed in the positioning shaft sleeve, and the key groove and a key on the rubbing plate shaft are in interference fit to axially position the rotating rubbing plate assembly;
the two support brackets are symmetrically welded on the positioning shaft sleeve, and the cleaning rubber strip is fixed between the two support brackets by using the locking nut.
Further, a plurality of rotating bracket plate assemblies are symmetrically installed, the narrow end of the supporting bracket plate is vertically and upwards counted as 0 degree, if the initial angle of the odd number of rotating bracket plate assemblies is 0 degree, if the initial angle of the even number of rotating bracket plate assemblies is 180 degrees;
the axial position and the spacing of each rotary bracket assembly are indirectly determined by the mounting position of the heat exchange plates.
Furthermore, the bearing seat is positioned and locked on the outer frame bracket by using a connecting bolt.
Furthermore, the heat exchanger plate heat exchanger further comprises an inner frame support, wherein clamping grooves with equal intervals are formed in the upper and lower frames of the inner frame support, and the heat exchanger plates are inserted into the clamping grooves to fix the relative positions.
Further, the width of the positioning shaft sleeve is smaller than the gap of the heat exchange plate, so that the axial position of the rotary bracket plate assembly is indirectly fixed.
Furthermore, the edge pressing is welded on the heat exchange plate sheet along the circumference of the eccentric hole in a laser mode to guarantee the sealing performance of the heat exchange plate sheet.
Further, the electric driving device is driven by a motor or a motor.
The device further comprises a sealing cover, wherein the rubbing plate shaft is movably sealed on the evaporation tower shell through a sealing end cover, and the sealing end cover is in fastening connection with a flange interface bolt on the evaporation tower shell.
According to the technical scheme, the cleaning device for the plate evaporative condenser is characterized in that a plurality of groups of rotary rubbing plate assemblies are fixed on a rubbing plate shaft, and each rotary rubbing plate assembly is arranged between two heat exchange plates; the driving device drives the plurality of groups of rotary rubbing plate assemblies to synchronously rotate around the axes of the rubbing plates through the rubbing plate shafts, and dirt attached to the surfaces of the heat exchange plates is scraped by utilizing the friction action between the cleaning rubber strips in the rubbing plate assemblies and the heat exchange plates. By adopting the scheme, the rubbing plate components are symmetrically arranged, because the friction coefficient between the cleaning film and the heat exchange plate has uncertainty due to different dirt generation areas or densities, the balance of the dynamic rotor is achieved as far as possible under the condition, the centrifugal inertia force of the rubbing plate components to the rubbing plate shaft can be effectively reduced, and the problems of overlarge noise, vibration or rubbing plate shaft damage and the like caused by overlarge centrifugal inertia force are avoided.
The cleaning device in the technical scheme of the invention has the advantages of simple structure and convenient later maintenance, can be used for cleaning the heat exchange plate inside the closed evaporation tower, does not need to be stopped, and improves the working efficiency of the evaporation tower.
Compared with the prior art, the invention has the following remarkable technical effects:
the invention has simpler structural design, is applied to cleaning the heat exchange plate inside the closed evaporation tower, can realize multiple times of scraping and cleaning on the surface of the heat exchange plate under the condition that the system does not shut down, solves the problem of reduction of the heat exchange efficiency of the system caused by the surface structure of the heat exchanger, avoids repeated starting and stopping of the system, and directly improves the service life of the heat exchange plate and the economic benefit of the closed evaporation system.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic diagram of the relative positions of some of the components of the present invention;
FIG. 4 is a perspective view of a cleaning assembly of the present invention;
FIG. 5 is a schematic illustration of a medium key connection of the present invention;
fig. 6 is a schematic view of the installation structure of the rotary bracket assembly and the bracket shaft for the plate evaporative condenser according to the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1 and 2, the present invention provides a cleaning device for a plate evaporative condenser, comprising: the device comprises a bearing seat 3, a rotary rubbing plate assembly 5, a rubbing plate shaft 9, a pressing ring 4 and an outer frame support 2, wherein the outer frame support 2 is welded and fixed on an evaporation tower shell 1, two ends of the rubbing plate shaft 9 are supported and fixed on the outer frame support 2 through the bearing seat 3, and the bearing seat 3 is positioned and locked on the outer frame support 2 through a connecting bolt 19; the scraping plate shaft 9 is dynamically sealed on the evaporation tower shell 1 by using a sealing end cover 20, and the sealing end cover 20 is in bolt fastening connection with a flange interface 21 on the evaporation tower shell 1;
one end of the baffle shaft 9 is connected with an electric driving device 11 through a coupler 10, and the electric driving device 11 can be selected to be a motor or a motor for driving according to actual production requirements.
In the above embodiment, as shown in fig. 3 and fig. 6, an eccentric hole 12 is formed in the position of an axial line of the heat exchange plate 6, and a blank holder is welded on the heat exchange plate 6 by laser along the circumference of the eccentric hole 12 to ensure the sealing performance; the plate-drawing shaft 9 penetrates through a plate bundle consisting of a plurality of heat exchange plates 6, and the plate-drawing shaft 9 and the eccentric hole 12 are further ensured to be coaxial by utilizing a pressing ring 4; the eccentric hole 12 is mainly used for positioning the rotating shaft and the rotating bracket component, the rotating bracket component has a certain length, the swept area of the cleaning rubber strip in one rotation is the cleaning area, the rotating center of the rotating shaft and the rotating bracket component is the center of the eccentric hole, and the eccentric distance of the eccentric hole is determined through certain calculation so as to ensure that the cleaning area is maximized under the condition of not influencing the upper structure of the evaporation tower.
Symmetrically installing a plurality of the rotary bracket assemblies 5, counting the narrow ends of the support brackets vertically upward as 0 °, and if the initial angle of an odd number of the rotary bracket assemblies 5 is 0 °, the initial angle of an even number of the rotary bracket assemblies 5 is 180 °; the axial position and spacing of each of said rotary bracket assemblies 5 is indirectly determined by the mounting position of said heat exchanger plates 6.
In the above embodiment, as shown in fig. 4 and 5, the rotary bracket assembly includes a cleaning rubber strip 16, a support bracket 15, a positioning shaft sleeve 14, and a lock nut 17, a key slot 13 is formed on the positioning shaft sleeve 14, and the key slot 13 and the key 18 on the bracket shaft 9 are in interference fit to radially lock and fix the rotary bracket assembly 5; the two support brackets 15 are symmetrically welded on the positioning shaft sleeve 14, and the cleaning rubber strip 16 is fixed between the two support brackets 15 by four locking nuts 17.
In the above embodiment, as shown in fig. 2, the upper and lower frames of the inner frame support 7 are respectively provided with clamping grooves 8 at equal intervals, the heat exchange plates 6 are inserted into the clamping grooves 8 to fix the relative positions, the rotary bracket assembly 5 is arranged at the interval position between the two heat exchange plates 6, and the width of the positioning shaft sleeve 14 is slightly smaller than the gap between the heat exchange plates 6, so as to indirectly fix the axial position of the rotary bracket assembly 5, that is, the axial position of the bracket assembly can be fixed by using the interval between the heat exchange plates.
In operation, the driving device 11 transmits driving force to the scraping plate shaft 9 to enable the scraping plate shaft to rotate at a certain rotating speed; the rubbing plate assembly 5 is axially locked along the rubbing plate shaft 9 through the positioning shaft sleeve 14, the rubbing plate shaft 9 rotates to drive the rubbing plate assembly 5 to do a whole-circle rotary motion, membrane-state dirt on the surfaces of the heat exchange plates is scraped and washed by the friction action between the cleaning rubber strips and the heat exchange plates 6, and the scraped free-state dirt is washed away by water flow of shell passes of the two heat exchange plates. In order to avoid that the effective distance between the two heat exchange plates is too small due to continuous superposition of multilayer membrane state dirt, so that the friction force between the cleaning rubber strip and the heat exchange plates is too large, the key connection between the positioning shaft sleeve 14 and the scraping plate shaft 9 is failed, and the continuous accumulation of the dirt is avoided by adjusting the whole-circle rotation frequency of the scraping plate assembly 5.
The invention has simpler structural design, is applied to cleaning the heat exchange plate inside the closed evaporation tower, can realize multiple times of scraping and cleaning on the surface of the heat exchange plate under the condition that the system does not shut down, solves the problem of reduction of the heat exchange efficiency of the system caused by the surface structure of the heat exchanger, avoids repeated starting and stopping of the system, and directly improves the service life of the heat exchange plate and the economic benefit of the closed evaporation system.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A cleaning device for a plate evaporative condenser comprises heat exchange plates (6), and is characterized by further comprising a rotary rubbing plate assembly (5) and a rubbing plate shaft (9), wherein two ends of the rubbing plate shaft (9) are supported and fixed on an outer frame bracket (2) by utilizing a bearing seat (3), and the outer frame bracket (2) is welded and fixed on an evaporation tower shell (1);
the plate drawing shaft (9) penetrates through a plate bundle consisting of a plurality of heat exchange plates (6), an eccentric hole (12) is formed in the position of the axis of each heat exchange plate (6), and the plate drawing shaft (9) and the eccentric hole (12) are further ensured to be coaxial by utilizing the pressing ring (4);
one end of the plate-drawing shaft (9) is connected with an electric drive device (11) through a coupling (10);
the rotary bracket plate assembly (5) is arranged at a position spaced by two heat exchange plates (6).
2. The cleaning device for a plate evaporative condenser according to claim 1, wherein: the rotary bracket plate assembly (5) comprises a cleaning rubber strip (16), a supporting bracket plate (15), a positioning shaft sleeve (14) and a locking nut (17);
a key groove (13) is formed in the positioning shaft sleeve (14), and the key groove (13) is in interference fit with an upper key (18) of the rubbing plate shaft (9) to axially position the rubbing plate assembly (5);
the two support brackets (15) are symmetrically welded on the positioning shaft sleeve (14), and the cleaning rubber strip (16) is fixed between the two support brackets (15) by using a locking nut (17).
3. The cleaning device for a plate evaporative condenser according to claim 2, wherein: symmetrically installing a plurality of rotary bracket assemblies (5), and vertically and upwardly counting the narrow ends of the support brackets to be 0 degrees, if the initial angle of the odd rotary bracket assemblies (5) is 0 degrees, if the initial angle of the even rotary bracket assemblies (5) is 180 degrees;
the axial position and the spacing of each rotary bracket assembly (5) are indirectly determined by the mounting position of the heat exchange plates (6).
4. The cleaning device for a plate evaporative condenser according to claim 1, wherein: the bearing seat (3) is positioned and locked on the outer frame bracket (2) by using a connecting bolt (19).
5. The cleaning device for a plate evaporative condenser according to claim 1, wherein:
the heat exchanger plate heat exchanger is characterized by further comprising an inner frame support (7), wherein clamping grooves (8) with equal intervals are formed in the upper and lower frames of the inner frame support (7), and the heat exchanger plates (6) are inserted into the clamping grooves (8) to fix the relative positions.
6. The cleaning device for a plate evaporative condenser according to claim 1, wherein:
the width of the positioning shaft sleeve (14) is smaller than the gap of the heat exchange plate (6), so that the axial position of the rotary bracket assembly (5) is indirectly fixed.
7. The cleaning device for a plate evaporative condenser according to claim 1, wherein:
and the heat exchange plate (6) is welded with a blank holder along the circumference of the eccentric hole (12) by laser so as to ensure the sealing property of the heat exchange plate.
8. The cleaning device for a plate evaporative condenser according to claim 1, wherein:
the electric drive device (11) is driven by a motor or a motor.
9. The cleaning device for a plate evaporative condenser according to claim 1, wherein:
the device is characterized by further comprising a sealing cover (20), the rubbing plate shaft (9) is dynamically sealed on the evaporation tower shell through a sealing end cover (20), and the sealing end cover (20) is in bolt fastening connection with a flange interface (21) on the evaporation tower shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126198.8A CN114812262A (en) | 2021-01-29 | 2021-01-29 | Cleaning device for plate evaporative condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126198.8A CN114812262A (en) | 2021-01-29 | 2021-01-29 | Cleaning device for plate evaporative condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114812262A true CN114812262A (en) | 2022-07-29 |
Family
ID=82526541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110126198.8A Pending CN114812262A (en) | 2021-01-29 | 2021-01-29 | Cleaning device for plate evaporative condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114812262A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11311499A (en) * | 1998-04-28 | 1999-11-09 | Sakae Sangyo Kk | Cleaning device of plate-type heat exchanger |
| CN102012189A (en) * | 2010-07-09 | 2011-04-13 | 邹杰 | Self-rotating and cleaning device of dirt in heat transfer tube |
| CN205940273U (en) * | 2016-06-29 | 2017-02-08 | 王子韬 | Plate heat exchanger scale removal equipment |
| CN208998637U (en) * | 2018-10-29 | 2019-06-18 | 王建勋 | A kind of plate-type heat exchanger slab apparatus for eliminating sludge |
| CN209197569U (en) * | 2018-11-29 | 2019-08-02 | 麦普斯(天津)科技有限公司 | A kind of plate heat exchanger dirt cleaning plant |
| CN210180241U (en) * | 2019-05-22 | 2020-03-24 | 山东飞洋节能技术有限公司 | High-efficient plate heat exchanger convenient to wash |
| CN211120839U (en) * | 2019-08-07 | 2020-07-28 | 厦门热工环保***工程有限公司 | Ash removal device for plate heat exchanger |
| CN215572411U (en) * | 2021-01-29 | 2022-01-18 | 安徽同速科技有限公司 | Cleaning device for plate evaporative condenser |
-
2021
- 2021-01-29 CN CN202110126198.8A patent/CN114812262A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11311499A (en) * | 1998-04-28 | 1999-11-09 | Sakae Sangyo Kk | Cleaning device of plate-type heat exchanger |
| CN102012189A (en) * | 2010-07-09 | 2011-04-13 | 邹杰 | Self-rotating and cleaning device of dirt in heat transfer tube |
| CN205940273U (en) * | 2016-06-29 | 2017-02-08 | 王子韬 | Plate heat exchanger scale removal equipment |
| CN208998637U (en) * | 2018-10-29 | 2019-06-18 | 王建勋 | A kind of plate-type heat exchanger slab apparatus for eliminating sludge |
| CN209197569U (en) * | 2018-11-29 | 2019-08-02 | 麦普斯(天津)科技有限公司 | A kind of plate heat exchanger dirt cleaning plant |
| CN210180241U (en) * | 2019-05-22 | 2020-03-24 | 山东飞洋节能技术有限公司 | High-efficient plate heat exchanger convenient to wash |
| CN211120839U (en) * | 2019-08-07 | 2020-07-28 | 厦门热工环保***工程有限公司 | Ash removal device for plate heat exchanger |
| CN215572411U (en) * | 2021-01-29 | 2022-01-18 | 安徽同速科技有限公司 | Cleaning device for plate evaporative condenser |
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