CN108398039B - Plate heat exchanger - Google Patents
Plate heat exchanger Download PDFInfo
- Publication number
- CN108398039B CN108398039B CN201810340970.4A CN201810340970A CN108398039B CN 108398039 B CN108398039 B CN 108398039B CN 201810340970 A CN201810340970 A CN 201810340970A CN 108398039 B CN108398039 B CN 108398039B
- Authority
- CN
- China
- Prior art keywords
- conical cylinder
- medium liquid
- plate
- clamping plate
- small end
- Prior art date
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000013049 sediment Substances 0.000 abstract description 13
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
-
- 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
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/10—Particular layout, e.g. for uniform temperature distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/10—Particular pattern of flow of the heat exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/08—Fastening; Joining by clamping or clipping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/20—Fastening; Joining with threaded elements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a plate heat exchanger, which comprises clamping plates, heat exchange plate gaskets, guide rods, clamping bolts and guide cylinders, wherein the heat exchange plate gaskets are pressed between the clamping plates through the guide rods and the clamping bolts, the pressed heat exchange plate gaskets symmetrically form four flow passages, two flow passages on one side are respectively a heat medium liquid inlet flow passage and a heat medium liquid outlet flow passage, two flow passages on the other side are respectively a cold medium liquid inlet flow passage and a cold medium liquid outlet flow passage, the heat medium liquid inlet flow passage and the cold medium liquid inlet flow passage are diagonally arranged, the guide cylinders are inserted into flow passages which are positioned at the lower part and have small medium volume flow, the guide cylinders comprise flange plates fixedly connected with the outer walls of the clamping plates and conical cylinders connected with the flange plates, one end of each conical cylinder connected with each flange plate is a large end, and a flow guiding gap exists between the small end of each conical cylinder and a rear clamping plate. The plate heat exchanger reduces sediment accumulation in the corresponding flow passage by inserting the guide cylinder in the flow passage which is positioned at the lower part and has small medium volume flow.
Description
Technical Field
The invention relates to the technical field of heat exchangers, and particularly provides a plate heat exchanger.
Background
In the use process of the plate heat exchanger, the condition that the flow rates of media at two sides of cold and hot are very different is often encountered, however, in general, the diameters of four flow channels of the plate heat exchanger are the same, so that the flow rate of the media with small flow rate in the corresponding flow channels is reduced, if the media with small flow rate are media with large viscosity or are media with sediments, the media can deposit the sediments in the corresponding lower flow channels in the heat exchange process, and with the increase of the sediments, the media flow dead angle is generated, the heat exchange efficiency of the heat exchanger is finally affected, and in addition, the deposited sediments also pollute the media.
Therefore, how to structurally improve the existing plate heat exchanger to avoid accumulation of sediments is a problem to be solved urgently.
Disclosure of Invention
In view of the above, the present invention aims to provide a plate heat exchanger, so as to solve the problem that the existing plate heat exchanger is easy to accumulate sediment in the lower flow passage of the medium with low flow velocity during the use process.
The technical scheme provided by the invention is as follows: a plate heat exchanger comprising: including clamping plate, heat exchanger plate gasket, guide arm, clamping bolt and draft tube, the clamping plate includes preceding clamping plate and back clamping plate, and the heat exchanger plate gasket compresses tightly through guide arm and clamping bolt and sets up between preceding clamping plate and back clamping plate, and the heat exchanger plate gasket symmetry after compressing tightly forms four runners, and two runners of one side are thermal medium feed liquor runner and thermal medium play runner respectively, and two runners of opposite side are cold medium feed liquor runner and cold medium play runner respectively, and thermal medium feed liquor runner and cold medium feed liquor runner diagonal setting, the draft tube inserts to locate in the runner that is located lower part and medium volume flow is little, and the draft tube includes the ring flange of being connected with clamping plate outer wall fixed connection and the toper drum of being connected with the ring flange, and the one end that toper drum is the main aspects of being connected with the ring flange, and the tip of toper drum has the water conservancy diversion clearance with back clamping plate.
Preferably, the diameter D of the small end circle of the conical cylinder, the diameter D of the flow channel where the conical cylinder is positioned, the volume flow W of the small end circle port of the conical cylinder and the flow velocity V of the small end circle port of the conical cylinder to be ensured 0 The relation of (2) satisfies the formula (1):
wherein the unit of the diameter of the small end circle of the conical cylinder is m, the unit of the diameter of the flow channel where the conical cylinder is positioned is m, and the conical cylinderThe unit of the volume flow of the small-end round port is m 3 And/s, the unit of the flow rate of the small end round port of the conical cylinder to be ensured is m/s.
It is further preferred that the small end of the tapered cylinder is spaced from the rear clamping plate by a distance d/4.
Further preferably, the heat medium liquid inlet channel is located above the heat medium liquid outlet channel, and the cold medium liquid inlet channel is located below the cold medium liquid outlet channel.
According to the plate heat exchanger provided by the invention, the guide cylinder is inserted into the flow channel which is positioned at the lower part and has small medium volume flow, so that on the premise of ensuring the medium liquid inlet or outlet flow rate, the medium is further ensured to enter the heat exchange flow channel between the heat exchange plate gaskets at a constant speed (or approximately constant speed) after passing through the conical cylinder, or enter the conical cylinder from the heat exchange flow channel between the heat exchange plate gaskets at a constant speed (or approximately constant speed), and the problem that the medium flow rate in the lower flow channel is uneven, so that sediment is accumulated at a position with low medium flow rate is avoided.
Drawings
The invention will be described in further detail with reference to the accompanying drawings and embodiments:
fig. 1 is a schematic view of a plate heat exchanger according to the present invention;
fig. 2 is a schematic structural view of the guide cylinder.
Detailed Description
The invention will be further explained below in connection with specific embodiments, but is not limited to the invention.
As shown in fig. 1, the present invention provides a plate heat exchanger comprising: including clamping plate, heat transfer plate gasket 2, guide arm 3, clamping bolt 4 and draft tube 5, the clamping plate includes preceding clamping plate 11 and back clamping plate 12, and heat transfer plate gasket 2 compresses tightly through guide arm 3 and clamping bolt 4 and sets up between preceding clamping plate 11 and back clamping plate 12, and the heat transfer plate gasket 2 after compressing tightly symmetrically forms four runners, and two runners of one side are hot medium feed liquor runner and hot medium play runner respectively, and two runners of the opposite side are cold medium feed liquor runner and cold medium play runner respectively, and hot medium feed liquor runner and cold medium feed liquor runner diagonal angle set up, draft tube 5 inserts and locates in the runner that is located the lower part and medium volume flow is little, and draft tube 5 includes the conical cylinder 52 (as shown in fig. 2) that is connected with clamping plate outer wall fixed connection's ring flange 51, and the one end that conical cylinder 52 is connected with ring flange 51 is the large end, and the tip and the back clamping plate 12 of conical cylinder 52 have the water conservancy diversion clearance.
According to the plate heat exchanger, the guide cylinder is inserted into the flow channel which is arranged at the lower part and has small medium volume flow, so that the medium can be further ensured to enter the heat exchange flow channel between the heat exchange plate gaskets at a constant speed (or approximately constant speed) after passing through the conical cylinder on the premise of ensuring the medium inlet or outlet flow velocity, or enter the conical cylinder from the heat exchange flow channel between the heat exchange plate gaskets at a constant speed (or approximately constant speed), the problem that the medium flow velocity in the lower flow channel is uneven, and then sediment is accumulated at the position with low medium flow velocity is avoided.
Wherein, the diameter D of the small end round of the conical cylinder 52 and the diameter D of the flow passage where the conical cylinder 52 is positioned, the volume flow W of the small end round port of the conical cylinder 52 and the flow velocity V of the small end round port of the conical cylinder 52 to be ensured 0 The relation of (2) satisfies the formula (1):
wherein the unit of the diameter of the small end circle of the conical cylinder 52 is m, the unit of the diameter of the flow passage where the conical cylinder 52 is positioned is m, and the unit of the volume flow of the small end round port of the conical cylinder 52 is m 3 And/s, the unit of flow rate of the small end round port of the conical cylinder 52 to be ensured is m/s.
The distance between the small end of the tapered cylinder 52 and the rear clamping plate 12 is d/4, and the length l=a+b-d/4 of the tapered cylinder 52, where a denotes the thickness of the front clamping plate 11, b denotes the smallest dimension of the front clamping plate 11 after clamping with the rear clamping plate 12, and d is the small end circle diameter of the tapered cylinder 52.
As an improvement of the technical scheme, the hot medium liquid inlet channel is positioned above the hot medium liquid outlet channel, and the cold medium liquid inlet channel is positioned below the cold medium liquid outlet channel.
Example 1
The heat medium inlet flow channel and the heat medium outlet flow channel are respectively positioned at the left upper part and the left lower part of the plate heat exchanger, the cold medium inlet flow channel and the cold medium outlet flow channel are symmetrically arranged at the right lower part and the right upper part of the plate heat exchanger, the diameters of the four flow channels are the same, the heat medium is yeast milk, the cold medium is water, the volume flow of the heat medium is smaller than that of the cold medium, the guide cylinder is inserted into the heat medium outlet flow channel, the diameter D of the small end circle of the conical cylinder, the diameter D of the heat medium outlet flow channel, the volume flow W of the small end circle port of the conical cylinder and the flow velocity V of the small end circle port of the conical cylinder to be ensured are all the same 0 The relation of (2) satisfies the formula (1):
wherein the unit of the diameter of the small end circle of the conical cylinder is m, the unit of the diameter of the flow channel where the conical cylinder is positioned is m, and the unit of the volume flow of the small end circle port of the conical cylinder is m 3 And/s, the unit of the flow rate of the small end round port of the conical cylinder to be ensured is m/s.
The distance between the small end of the conical cylinder and the rear clamping plate is d/4, and the length L=a+b-d/4 of the conical cylinder, wherein a represents the thickness of the front clamping plate, b represents the minimum dimension of the front clamping plate and the rear clamping plate after clamping, and d is the diameter of the small end circle of the conical cylinder.
The heat medium yeast milk contains sediment, the plate heat exchanger is used for heat exchange, sediment accumulation is not seen at the position of the heat medium liquid outlet flow passage, the conventional plate heat exchanger is used for heat exchange, a large amount of sediment can be accumulated at the position of the heat medium liquid outlet flow passage, along with the increase of the service time, the sediment is further accumulated, flowing dead angles are generated, and the heat exchange efficiency of the heat exchanger is poor.
Claims (1)
1. The plate heat exchanger is characterized by comprising a clamping plate, a heat exchange plate gasket (2), a guide rod (3), a clamping bolt (4) and a guide cylinder (5), wherein the clamping plate comprises a front clamping plate (11) and a rear clamping plate (12), and the heat exchange plate gasket (2) passes through the guide rod (3) and the clamping screwThe bolt (4) is tightly pressed between the front clamping plate (11) and the rear clamping plate (12), four channels are symmetrically formed by the heat exchange plate gaskets (2) after being tightly pressed, two channels on one side are respectively a heat medium liquid inlet channel and a heat medium liquid outlet channel, two channels on the other side are respectively a cold medium liquid inlet channel and a cold medium liquid outlet channel, the heat medium liquid inlet channel and the cold medium liquid inlet channel are diagonally arranged, the guide cylinder (5) is inserted into the channel which is positioned at the lower part and has small medium volume flow, the guide cylinder (5) comprises a flange plate (51) fixedly connected with the outer wall of the clamping plate and a conical cylinder (52) connected with the flange plate (51), one end of the conical cylinder (52) connected with the flange plate (51) is a large end, a flow guide gap exists between the small end of the conical cylinder (52) and the rear clamping plate (12), and the small end circle diameter D of the conical cylinder (52) and the diameter D of the flow speed D of the channel, the small end circle port W of the conical cylinder (52) and the volume flow W of the small end circle port of the conical cylinder (52) to be ensured are arranged at the small end port V of the small end port of the conical cylinder (52) 0 The relation of (2) satisfies the formula (1):
wherein the unit of the diameter of the small end circle of the conical cylinder (52) is m, the unit of the diameter of the flow passage where the conical cylinder (52) is positioned is m, and the unit of the volume flow of the small end round port of the conical cylinder (52) is m 3 And/s, the unit of the flow rate of the small end round port of the conical cylinder (52) to be ensured is m/s, the distance between the small end of the conical cylinder (52) and the rear clamping plate (12) is d/4, and the length L=a+b-d/4 of the conical cylinder (52), wherein a represents the thickness of the front clamping plate (11), b represents the minimum size of the front clamping plate (11) and the rear clamping plate (12) after clamping, the heat medium liquid inlet channel is positioned above the heat medium liquid outlet channel, and the cold medium liquid inlet channel is positioned below the cold medium liquid outlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340970.4A CN108398039B (en) | 2018-04-17 | 2018-04-17 | Plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340970.4A CN108398039B (en) | 2018-04-17 | 2018-04-17 | Plate heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108398039A CN108398039A (en) | 2018-08-14 |
| CN108398039B true CN108398039B (en) | 2024-03-08 |
Family
ID=63099136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810340970.4A Active CN108398039B (en) | 2018-04-17 | 2018-04-17 | Plate heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108398039B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595962B (en) * | 2018-10-12 | 2023-12-12 | 山西臣功新能源科技有限公司 | Solid electric heat storage device and heat storage method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001073366A1 (en) * | 2000-03-28 | 2001-10-04 | Compagnie Industrielle D'applications Thermiques | Plate heat exchanger |
| CN1928482A (en) * | 2006-09-20 | 2007-03-14 | 常熟市新世纪化工设备有限公司 | Plate coil heat exchanger |
| CN201322565Y (en) * | 2008-10-24 | 2009-10-07 | 柏恩时代(北京)换热设备有限公司 | Plate heat exchanger |
| CN202329309U (en) * | 2011-11-18 | 2012-07-11 | 辽宁远大换热设备制造有限公司 | Large-angle-pore plate type heat exchanger |
| DE202014010359U1 (en) * | 2014-04-30 | 2015-07-02 | Gea Wtt Gmbh | Plate heat exchanger |
| CN106839832A (en) * | 2017-01-23 | 2017-06-13 | 中国科学技术大学 | A kind of bend flow channel heat exchanger in the thermodynamic cycle for supercritical fluid |
| CN208254288U (en) * | 2018-04-17 | 2018-12-18 | 睿能太宇（沈阳）能源技术有限公司 | A kind of plate heat exchanger |
-
2018
- 2018-04-17 CN CN201810340970.4A patent/CN108398039B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001073366A1 (en) * | 2000-03-28 | 2001-10-04 | Compagnie Industrielle D'applications Thermiques | Plate heat exchanger |
| CN1928482A (en) * | 2006-09-20 | 2007-03-14 | 常熟市新世纪化工设备有限公司 | Plate coil heat exchanger |
| CN201322565Y (en) * | 2008-10-24 | 2009-10-07 | 柏恩时代(北京)换热设备有限公司 | Plate heat exchanger |
| CN202329309U (en) * | 2011-11-18 | 2012-07-11 | 辽宁远大换热设备制造有限公司 | Large-angle-pore plate type heat exchanger |
| DE202014010359U1 (en) * | 2014-04-30 | 2015-07-02 | Gea Wtt Gmbh | Plate heat exchanger |
| CN106839832A (en) * | 2017-01-23 | 2017-06-13 | 中国科学技术大学 | A kind of bend flow channel heat exchanger in the thermodynamic cycle for supercritical fluid |
| CN208254288U (en) * | 2018-04-17 | 2018-12-18 | 睿能太宇（沈阳）能源技术有限公司 | A kind of plate heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108398039A (en) | 2018-08-14 |
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