CN113670108A - Plate heat exchanger plate for preventing marine microorganism blockage - Google Patents
Plate heat exchanger plate for preventing marine microorganism blockage Download PDFInfo
- Publication number
- CN113670108A CN113670108A CN202111002816.4A CN202111002816A CN113670108A CN 113670108 A CN113670108 A CN 113670108A CN 202111002816 A CN202111002816 A CN 202111002816A CN 113670108 A CN113670108 A CN 113670108A
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- Prior art keywords
- plate
- area
- heat exchange
- heat exchanger
- main heat
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- 244000005700 microbiome Species 0.000 title claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 239000013535 sea water Substances 0.000 abstract description 9
- 238000000151 deposition Methods 0.000 abstract description 3
- 235000019219 chocolate Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 235000015170 shellfish Nutrition 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000238367 Mya arenaria Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
Abstract
The invention discloses a plate heat exchanger plate for preventing marine microorganism blockage, which comprises a corner hole area, a protection area, a flow guide area and a main heat exchange area which are symmetrically arranged at two ends of the plate, wherein the joint of the flow guide area and the protection area forms two herringbone seal groove central lines, a connecting line between the flow guide area and the main heat exchange area is an arc line, the main heat exchange area is provided with continuous herringbone ripples, reinforcing ribs are not arranged in the horizontal direction and the vertical direction, the central included angle beta of each herringbone ripple in the horizontal direction is 50-130 degrees, the central included angle beta is inverted into a fillet, the radius of the fillet is 20-30 mm, and the corrugation pitch t is 3-4 times of the corrugation depth. The invention enables the seawater to be more uniformly distributed in the plate heat exchanger without dead zones and better trafficability by optimizing the corrugated shape, the corrugated depth, the cross section form, the diversion area structure and other modes of the plate main heat exchange area, prevents marine microorganisms from depositing on the plate, improves the heat exchange efficiency of the product and prolongs the service life of the product.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a plate type heat exchanger plate for preventing marine microorganism blockage.
Background
For a heat exchanger using seawater as a cold medium, a filter screen or a shellfish catcher is generally arranged before seawater enters a pipeline of a heat exchanger system to filter substances such as sand, organisms and the like in the seawater, but a part of marine microorganisms such as algae, shellfish, soft shells and the like still pass through the filter device and enter the pipeline of the system to reach the interior of the plate heat exchanger, and after long-term precipitation and microorganism growth, the flow channel of the heat exchanger is easily blocked, so that the heat exchanger has the problems of reduced heat transfer performance, increased pressure drop, uneven medium distribution and the like, and even stops, and the use effect and the service life of the product are seriously influenced.
At present, the depth of a corrugated groove of a conventional detachable plate heat exchanger is generally 4.0mm or less (except for a wide-gap plate type), and the requirement is difficult to meet under the working conditions that the corrugated groove is easy to block like seawater and the like.
Disclosure of Invention
The invention aims to provide a plate type heat exchanger plate for preventing marine microorganism blockage, and aims to solve the problem that the heat exchanger is easy to block under the marine working condition and the use effect is influenced.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a plate heat exchanger plate for preventing marine microorganism blockage is a rectangular corrugated plate and comprises corner hole regions, a protection region, a flow guide region and a main heat exchange region which are symmetrically arranged at two ends of the plate, wherein the joint of the flow guide region and the protection region forms two central lines of herringbone sealing grooves, a connecting line between the flow guide region and the main heat exchange region is an arc line, continuous herringbone corrugations are arranged in the main heat exchange region, reinforcing ribs are not arranged in the horizontal direction and the vertical direction, the central included angle beta of each herringbone corrugation in the horizontal direction is 50-130 degrees, the central included angle beta is inverted into a fillet, the radius of the fillet is 20-30 mm, and the corrugation pitch t is 3-4 times of the corrugation depth.
Preferably, the corrugation depth of the main heat exchange zone is 4.5-5.0 mm.
Preferably, each corrugation unit of the main heat exchange zone comprises a wave crest, a slope and a wave trough, the longitudinal section of each corrugation unit is triangular, and the included angle alpha between the two slopes of the wave trough or the wave crest is 80-110 degrees.
Preferably, the flow guide area comprises a plurality of concave hulls and convex hulls which are symmetrically and alternately arranged along the central line of the plate length direction, and the central point connecting line of the concave hulls and the central point connecting line of the convex hulls are respectively parallel to the central lines of the two sealing grooves.
Preferably, the shape of the concave hull and the convex hull is one or a combination of more than two of round, square or drop.
The invention enables the seawater to be more uniformly distributed in the plate heat exchanger without dead zones and better trafficability by optimizing the corrugated shape, the corrugated depth, the cross section form, the diversion zone structure and other modes of the plate main heat exchange zone, prevents marine microorganisms from depositing on the plate to generate blockage, improves the heat exchange efficiency of the product and prolongs the service life of the product.
The ripple depth of the main heat exchange area is designed to be 4.5-5.0mm, the sectional area of a channel is increased, and seawater and impurities can pass easily;
the main heat exchange area is regular and continuous herringbone ripples, so that the single ripples are reduced, and the wall hanging risk of marine organisms is reduced; the included angle alpha between the two inclined planes of the wave trough or the wave crest is 80-100 degrees, the longitudinal section of the corrugated unit is triangular, the contact area formed by the two plate sheets is smaller, and the blockage can be reduced; the central included angle beta of the herringbone ripples in the horizontal direction is 50-130 degrees, and can be adjusted according to the requirements of heat transfer and pressure drop; the central included angle beta is chamfered into a fillet with the radius of 20mm-30mm, the transition at the included angle is gentle as much as possible by adopting small curvature treatment, gravel and microorganisms in seawater are not easy to gather at the included angle of the herringbone, and impurities can quickly pass through the surface of the plate sheet and are not easy to deposit.
The length of the main heat exchange area can be changed according to the requirement, and the length of the plate is increased or shortened by changing the length of the compression mold core, so that the effective heat exchange area is flexibly adjusted.
The diversion area of the plate adopts the concave hulls and the convex hulls which are arranged in a staggered mode to form a positive and negative round hull structure, the positive and negative round hull structure is symmetrically distributed along the length direction of the plate, and single-side flow or diagonal flow channel combination can be achieved. Compared with the traditional chocolate block structure, the chocolate block structure can only realize unilateral flow or diagonal flow, and the positive and negative round bag structure can be used under more working conditions. Compared with a flow guide area structure with herringbone ripples extending out, the flow field distribution of the flow guide area of the positive and negative circular bag structure is more uniform, and the pressure drop is smaller.
The central point connecting line of the guide area concave packet and the central point connecting line of the convex packet are parallel to the central lines of the two sealing grooves, offset and arranged in a mirror image mode along the central line of the length direction of the plate. When the plates are assembled, one plate rotates 180 degrees, and the convex hull and the concave hull are just overlapped to form a contact.
The flow guide area and the main heat exchange area are in adjacent areas and are connected in an arc shape, and the rigidity of the plate can be effectively enhanced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the main heat transfer zone of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic structural view of a flow guiding region;
fig. 5 is a partially enlarged view of the pilot region, with a dotted line indicating a concave hull and a solid line indicating a convex hull;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
FIG. 7 is a cross-sectional view of C-C of FIG. 5;
fig. 8 is a schematic structural view in which concave and convex hulls of the diversion area are square;
FIG. 9 is a schematic diagram of a structure in which concave hulls and convex hulls of a guide area are drop-shaped;
in the figure: 1. the heat exchange device comprises a corner hole area, 2, a protection area, 3, a flow guide area, 31, a sealing groove center line, 32, a concave hull center line, 33, a convex hull center line, 34, a concave hull, 35, a convex hull, 4, a main heat exchange area, 5 and a circular arc line.
Detailed Description
The invention is described in detail below with reference to the figures and specific examples.
As shown in fig. 1 to 3, the plate heat exchanger plate for preventing marine microorganism blockage is a rectangular corrugated plate, the central axis of the plate along the length direction is defined as a Y axis, the central axis of the plate along the width direction is defined as an X axis, and the plate heat exchanger plate comprises a corner hole area 1, a protection area 2, a flow guide area 3 and a main heat exchange area 4 which are symmetrically arranged along two sides of the X axis. Two herringbone sealing groove central lines 31 are formed at the connecting part of the flow guide area 3 and the protection area 2, a connecting line between the flow guide area 3 and the main heat exchange area 4 is an arc line 5, continuous herringbone ripples are arranged on the main heat exchange area 4, no reinforcing rib is arranged in the horizontal direction and the vertical direction, the central included angle beta of each herringbone ripple in the horizontal direction is 50-130 degrees, the central included angles beta are different, and different heat transfer and pressure drop can be realized; the central included angle beta is chamfered into a fillet, and the radius of the fillet is 20mm-30 mm; the corrugation pitch t is 3-4 times the corrugation depth. The smaller the ripple pitch t is, the higher the heat exchange efficiency is; the corrugation depth of the main heat exchange area 4 is 4.5-5.0 mm. Each corrugated unit of the main heat exchange area 4 comprises a wave crest, a slope and a wave trough, the longitudinal section of the corrugated unit is triangular, and the included angle alpha between the two slopes of the wave trough or the wave crest is 80-110 degrees.
As shown in fig. 4, the convex hulls and the concave hulls of the flow guide areas are symmetrically arranged along the Y axis, the flow guide areas at the other end of the plate are mirrored with the center line of the flow guide areas along the X axis, the convex hulls and the concave hulls are oppositely arranged, and the flow guide areas realize the combination of single-side flow or diagonal flow channels.
As shown in fig. 4 to 9, the flow guiding region 3 includes a plurality of concave hulls 34 and convex hulls 35 symmetrically and alternately arranged along the center line of the plate length direction, and the center point connecting line 32 of the concave hulls 34 and the center point connecting line 33 of the convex hulls 35 are respectively parallel to the center lines 31 of the two sealing grooves. The shape of the concave hull 34 and the convex hull 35 is one or a combination of two or more of a circle, a square or a drop.
The invention enables the seawater to be more uniformly distributed in the plate heat exchanger without dead zones and better trafficability by optimizing the corrugated shape, the corrugated depth, the cross section form, the diversion zone structure and other modes of the plate main heat exchange zone, prevents marine microorganisms from depositing on the plate to generate blockage, improves the heat exchange efficiency of the product and prolongs the service life of the product.
Claims (5)
1. The utility model provides a prevent plate heat exchanger slab of marine microorganism jam, the slab is rectangular corrugated plate, including the symmetry set up in the corner hole district (1) at slab both ends, guard area (2), water conservancy diversion district (3) and main heat transfer district (4), the junction of water conservancy diversion district (3) and guard area (2) forms two chevron seal groove central lines (31), its characterized in that: the connecting line between the flow guide area (3) and the main heat exchange area (4) is a circular arc line (5), the main heat exchange area (4) is provided with continuous herringbone ripples, reinforcing ribs are not arranged in the horizontal direction and the vertical direction, the central included angle beta of each herringbone ripple in the horizontal direction is 50-130 degrees, the central included angle beta is inverted into a fillet, the radius of the fillet is 20-30 mm, and the ripple pitch t is 3-4 times of the ripple depth.
2. A plate heat exchanger plate for preventing fouling by marine microorganisms according to claim 1, wherein: the corrugation depth of the main heat exchange area (4) is 4.5-5.0 mm.
3. Plate heat exchanger plate to prevent fouling by marine microorganisms according to claim 1 or 2, characterized in that: each corrugated unit of the main heat exchange zone (4) comprises a wave crest, a slope and a wave trough, the longitudinal section of each corrugated unit is triangular, and the included angle alpha between the two slopes of the wave trough or the wave crest is 80-110 degrees.
4. A plate heat exchanger plate for preventing fouling by marine microorganisms according to claim 3, wherein: the flow guide area (3) comprises a plurality of concave hulls (34) and convex hulls (35) which are symmetrically and alternately arranged along the center line of the length direction of the plate, and the center point connecting line (32) of the concave hulls (34) and the center point connecting line (33) of the convex hulls (35) are respectively parallel to the center lines (31) of the two sealing grooves.
5. Plate heat exchanger plate to prevent fouling by marine microorganisms according to claim 4, characterized in that: the concave hull (34) and the convex hull (35) are in one or more of a round shape, a square shape or a drop shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002816.4A CN113670108B (en) | 2021-08-30 | Plate type heat exchanger plate for preventing marine microorganism from blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002816.4A CN113670108B (en) | 2021-08-30 | Plate type heat exchanger plate for preventing marine microorganism from blocking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113670108A true CN113670108A (en) | 2021-11-19 |
| CN113670108B CN113670108B (en) | 2024-05-10 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2491801Y (en) * | 2001-06-06 | 2002-05-15 | 四平市北方压力容器制造厂 | Baffle heat exchanger for alcohol industry |
| CN102192676A (en) * | 2010-03-16 | 2011-09-21 | 四平艾维能源科技有限公司 | All-welded plate-type heat exchanger |
| US20150041110A1 (en) * | 2011-11-30 | 2015-02-12 | Mitsubishi Electric Corporation | Plate heat exchanger and refrigeration cycle apparatus including the same |
| CN210374731U (en) * | 2019-05-06 | 2020-04-21 | 南通文鼎换热设备科技有限公司 | Wave-shaped fluid channel heat exchange fin of plate heat exchanger |
| CN112240724A (en) * | 2019-07-18 | 2021-01-19 | 中石化南京化工研究院有限公司 | Heat exchange plate and plate heat exchanger |
| CN212931108U (en) * | 2020-07-24 | 2021-04-09 | 上海尔华杰机电装备制造有限公司 | Heat exchange plate of wide-flow-channel plate heat exchanger |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2491801Y (en) * | 2001-06-06 | 2002-05-15 | 四平市北方压力容器制造厂 | Baffle heat exchanger for alcohol industry |
| CN102192676A (en) * | 2010-03-16 | 2011-09-21 | 四平艾维能源科技有限公司 | All-welded plate-type heat exchanger |
| US20150041110A1 (en) * | 2011-11-30 | 2015-02-12 | Mitsubishi Electric Corporation | Plate heat exchanger and refrigeration cycle apparatus including the same |
| CN210374731U (en) * | 2019-05-06 | 2020-04-21 | 南通文鼎换热设备科技有限公司 | Wave-shaped fluid channel heat exchange fin of plate heat exchanger |
| CN112240724A (en) * | 2019-07-18 | 2021-01-19 | 中石化南京化工研究院有限公司 | Heat exchange plate and plate heat exchanger |
| CN212931108U (en) * | 2020-07-24 | 2021-04-09 | 上海尔华杰机电装备制造有限公司 | Heat exchange plate of wide-flow-channel plate heat exchanger |
Non-Patent Citations (2)
| Title |
|---|
| 徐立等: "冰级船板式换热器流动传热分析及结构优化", 《柴油机》, vol. 40, no. 3, pages 29 - 106 * |
| 王森等: "新型板式热交换器导流区数值模拟研究", 《压力容器》, vol. 34, no. 8, pages 25 - 34 * |
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