CN115752040B - Plastic plate heat exchanger - Google Patents
Plastic plate heat exchanger Download PDFInfo
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- CN115752040B CN115752040B CN202211662037.1A CN202211662037A CN115752040B CN 115752040 B CN115752040 B CN 115752040B CN 202211662037 A CN202211662037 A CN 202211662037A CN 115752040 B CN115752040 B CN 115752040B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The application relates to the technical field of heat exchangers, in particular to a plastic plate heat exchanger, which comprises a box body, wherein a pipe box is connected to the box body, at least two heat exchange assemblies are stacked in the box body, each heat exchange assembly comprises a first heat exchange plate and a second heat exchange plate, heat exchange channels for circulating cold and heat media are formed between the adjacent first heat exchange plates and the adjacent second heat exchange plates, the flow directions of fluid in the adjacent heat exchange channels are staggered and are not communicated with each other, first bending parts are arranged around the first heat exchange plates, the bending directions of the adjacent first bending parts are opposite, second bending parts are arranged around the second heat exchange plates, the bending directions of the adjacent second bending parts are opposite, the first bending parts and the second bending parts which are bent towards the mutually approaching directions are mutually fixed, and the cross section shapes of the first heat exchange plates and the second heat exchange plates are curved surfaces, so that the heat exchange efficiency is improved.
Description
Technical Field
The application relates to the technical field of heat exchangers, in particular to a plastic plate heat exchanger.
Background
The flue gas generated by various heating furnaces and boilers is corroded by sulfuric acid and carbonic acid dew points to cause the phenomena of damage and blockage of furnace tubes and heat exchange elements, and the like, in order to prolong the service life of the flue gas, the flue gas exhaust temperature is set to be higher than the acid dew point temperature (generally, the average temperature is higher than 130 ℃), and a large amount of heat is taken away by the flue gas, so that energy waste is caused, and the heat utilization rate is lower. With the increasing importance of the whole society to living environment and energy conservation and emission reduction, various flue gas waste heat recovery technologies, such as a waste heat boiler, air flue gas heat exchange, low-temperature waste heat power generation and the like, appear. The extent of waste heat recovery has also gradually evolved from "conventional recovery" of flue gas slightly above the dew point temperature to "deep recovery" of flue gas below the dew point temperature to further recover sensible heat and latent heat of the flue gas.
The smoke exhaust below the dew point temperature generally adopts an enamel pipe type, a glass pipe type preheater (heat exchanger) or an integral preheater adopting a steel pipe-cast iron pipe-glass pipe three-section combination to slow down the low-temperature dew point corrosion of the smoke, prolongs the service life of the preheater to a certain extent and improves the running period of equipment, but has the defects of huge volume, high metal consumption, low heat exchange efficiency, poor thermal shock and fatigue resistance, short service life and the like in the structure and the performance of the equipment. The heat exchange between corrosive gases or liquids in the field of process industry generally adopts corrosion-resistant noble metal tube heat exchangers such as titanium and pickaxe, and the like, so that the cost is too high and the cost performance is lower, or adopts non-metal heat exchangers such as graphite heat exchangers and glass tubes, and the like, and the defects of poor thermal shock resistance, poor fatigue performance, short service life and the like exist. Compared with the traditional tubular preheater (heat exchanger), the plate heat exchanger has the characteristics of high heat transfer efficiency, reduced pressure, compact structure and the like. In order to solve the problem of low-temperature flue gas dew point corrosion, a metal plate type preheater and glass plate type preheater combined technology is adopted in flue gas waste heat recovery of a heating furnace, but the defects of poor vibration fatigue resistance, short operation life and the like exist.
Because the plastic heat exchanger has excellent corrosion resistance, scaling resistance and other good adaptability to flue gas corrosive media, the plastic heat exchanger is applied to industrialization, so the plastic tube heat exchanger is generally adopted in the industry, but the plastic tube heat exchanger has the defects of small heat exchange area per heat exchange volume, low heat exchange efficiency, large volume and the like.
Disclosure of Invention
In order to improve the heat exchange effect, the application provides a plastic plate heat exchanger.
The application provides a plastic plate heat exchanger which adopts the following technical scheme:
the utility model provides a plastic plate heat exchanger, includes the box, be connected with the pipe case on the box, the stack is provided with two at least heat exchange component in the box, heat exchange component includes first heat exchange plate and second heat exchange plate, adjacent between first heat exchange plate and the second heat exchange plate has constituted the heat transfer passageway that supplies cold and hot medium to circulate, adjacent the flow direction of fluid in the heat transfer passageway is crisscross to be set up and each other not communicates with each other.
Through adopting above-mentioned technical scheme, the heat transfer subassembly separates the inner space of box into the space of multilayer mutually independent for cold and hot medium is when flowing from the box, and cold and hot medium is divided into individual heat transfer passageway, and area of contact between the cold and hot medium is bigger, and the heat transfer effect is better, and heat exchange efficiency is higher. The plastic material has excellent smoke dew point corrosion resistance, excellent vibration fatigue resistance and long operation service life, and the plate heat exchanger has large heat exchange area per heat exchange volume, high heat exchange efficiency and relatively small volume, overcomes the defects of the prior equipment technology, and is beneficial to realizing the recovery of corrosive gas or liquid low-temperature energy and the recovery and utilization of waste heat of low-temperature smoke at the temperature lower than the acid dew point temperature.
Optionally, a first bending part is arranged around the first heat exchange plate, the bending directions of the adjacent first bending parts are opposite, a second bending part is arranged around the second heat exchange plate, the bending directions of the adjacent second bending parts are opposite, and the first bending part and the second bending part which are bent towards the directions close to each other are mutually fixed.
Through adopting above-mentioned technical scheme, enclose into the passageway that supplies the fluid to pass through between first kink, second kink, first heat exchange plate and the second heat exchange plate for fluid can only circulate along a direction, thereby construct into multilayer mutually independent space with the box, optimized space utilization, make the heat exchanger volume littleer.
Optionally, the cross-sectional shapes of the first heat exchange plate and the second heat exchange plate are curved surfaces.
By adopting the technical scheme, the heat exchange area of the first heat exchange plate and the second heat exchange plate is greatly increased by the shape of the curved surface, so that the efficiency of the cold and hot medium is higher during heat exchange.
Optionally, the box includes four corners grudging post, curb plate and linking frame, heat transfer assembly arranges along the length direction of four corners grudging post, the curb plate is fixed to be set up in the both sides of four corners grudging post and enclose heat transfer assembly inboard, the linking frame is fixed to be set up at the edge of four corners grudging post and curb plate.
Through adopting above-mentioned technical scheme, constitute whole box through four corners grudging post, curb plate and linking frame for the structure of box is simpler, low in production cost, makes the sexual valence relative altitude of whole heat exchanger higher.
Optionally, a flange is integrally formed on the pipe box, and the flange is connected with the connecting frame flange.
Through adopting above-mentioned technical scheme, connect pipe box and box through flange joint's mode for easy dismounting, the leakproofness is better moreover.
Optionally, integrated into one piece has the turn-ups on the pipe case, fixedly be provided with the connecting block on the turn-ups, offered on the connecting frame with connecting block assorted connecting hole, be provided with the positioning mechanism who is used for fixed connecting block on the box.
Through adopting above-mentioned technical scheme, when connecting box and pipe case, peg graft the connecting block in the connecting hole, then use positioning mechanism to fix the position of connecting block, can accomplish the installation of pipe case.
Optionally, the positioning mechanism comprises a top block arranged on the connecting frame in a sliding way, a through hole formed in the connecting block, and a pushing component for pushing the top block to be inserted into the through hole; the cross section shape of the top block is triangular, and when the top block is inserted into the through hole, the flanging is driven to move towards the direction close to the connecting frame.
Through adopting above-mentioned technical scheme, the top piece is pegged graft in the through-hole to pushing away the subassembly, and the top piece can promote the connecting block removal at the in-process that removes to make the turn-ups remove towards the direction that is close to the connecting frame.
Optionally, the pushing component comprises a first locating plate inserted at two ends of the four-corner vertical frame and a second locating plate fixedly arranged at one end of the first locating plate, and when the first locating plate stretches into the four-corner vertical frame, the first locating plate and the second locating plate can both prop against the top block and push the top block to be inserted into the through hole.
Through adopting above-mentioned technical scheme, when first locating plate pegged graft in the foursquare grudging post, can make the kicking block by promote to peg graft in the through-hole to fix the connecting block. When the first locating plate is completely inserted into the four-corner vertical frames, the second locating plate can be abutted against the top blocks on the connecting frames at the side plates, so that the top blocks at the positions fix the connecting blocks.
Optionally, the one end that the second locating plate was kept away from to first locating plate is fixed to be provided with the locating piece, half screw hole has been seted up on the locating piece, two when first locating plate all stretches into in the founds in the four corners, two locating pieces can mutually amalgamate together and two half screw holes constitute complete screw hole, threaded connection has positioning bolt on the screw hole.
Through adopting above-mentioned technical scheme, when two first locating plates all peg graft in the founds in four corners completely, two locating pieces can splice together to make the positioning bolt can connect in the screw hole that two half screw holes constitute, realize the fixed to first locating plate position.
Optionally, the locating piece is hinged with a pre-locating piece, a pre-locating groove matched with the pre-locating piece is formed in the locating piece, when the two locating pieces are spliced together, the pre-locating piece can be inserted into the pre-locating groove, and a notch for the positioning bolt to pass through is formed in the pre-locating piece.
Through adopting above-mentioned technical scheme, through pegging graft the reservation piece in predetermination groove, can realize the prepositioning to two locating pieces for two locating pieces can't separate, thereby made things convenient for positioning bolt's installation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the heat exchange assembly divides the inner space of the box body into a plurality of layers of mutually independent spaces, so that when cold and hot media flow through the box body, the cold and hot media are divided into independent heat exchange channels, the contact area between the cold and hot media is larger, the heat exchange effect is better, and the heat exchange efficiency is higher.
2. The shape of the curved surface greatly increases the heat exchange area of the first heat exchange plate and the second heat exchange plate, so that the efficiency of the cold and hot medium is higher during heat exchange.
Drawings
Fig. 1 is a schematic overall structure of a first embodiment of the present application.
Fig. 2 is a schematic diagram of a box structure according to a first embodiment of the present application.
Fig. 3 is a schematic structural diagram of a heat exchange assembly according to a first embodiment of the present application.
Fig. 4 is a schematic view illustrating a stacked state of a plurality of heat exchange assemblies according to a first embodiment of the present application.
Fig. 5 is a schematic plan view showing a stacked state of a plurality of heat exchange assemblies according to a first embodiment of the present application.
Fig. 6 is a schematic overall structure of a second embodiment of the present application.
Fig. 7 is an enlarged schematic view of the portion a in fig. 6.
Fig. 8 is a schematic structural diagram of a pushing assembly according to a second embodiment of the present application.
Reference numerals: 1. a case; 11. four corner stand; 12. a side plate; 13. a connection frame; 131. a connection hole; 2. a tube box; 21. flanging; 211. a connecting block; 3. a heat exchange assembly; 31. a first heat exchange plate; 311. a first bending part; 32. a second heat exchange plate; 321. a second bending part; 41. a top block; 42. a first positioning plate; 421. a positioning block; 4211. presetting a positioning sheet; 4212. a pre-positioning groove; 43. a second positioning plate; 44. and positioning bolts.
Detailed Description
The technical scheme of the application is further described in detail below with reference to the accompanying drawings.
Example 1
The embodiment of the application discloses a plastic plate heat exchanger. Referring to fig. 1 and 2, a plastic plate heat exchanger includes a case 1, and the case 1 is square or rectangular. Four pipe boxes 2 are communicated around the box body 1, the four pipe boxes 2 are divided into two groups, one group of the four pipe boxes 2 forms a cold fluid channel, one pipe box 2 in one group enables cold medium to flow into the box body 1, the other pipe box 2 in the other group enables the cold medium to flow out of the box body 1, and the two pipe boxes 2 are arranged opposite to each other; the other group constitutes a thermal fluid passage, one tube box 2 in the group causes the thermal medium to flow into the box 1, the other tube box 2 in the group causes the thermal medium to flow out of the box 1, and the two tube boxes 2 are disposed facing each other. The surface of the pipe box 2, which is contacted with the medium, is made of a plastic plate, or is coated with a plastic composite coating layer by spraying the surface of a metal material, or is coated with a plastic lining layer or all composite coating plastic layers by spraying the surface of the inner side of the metal material. The cold fluid channel and the hot fluid channel are arranged in a crossing way, the cold fluid can be a gaseous medium or a liquid medium, the hot fluid can be a gaseous medium or a liquid medium, and the form of the medium is not limited. At least two heat exchange assemblies 3 are disposed in the case 1, and it should be understood that the number of the heat exchange assemblies 3 in the case 1 is not limited herein, and the specific number of the heat exchange assemblies may be adjusted according to practical situations. The heat exchange assemblies 3 are arranged in a stacked manner in the box body 1, wherein the stacked manner can be transverse stacking or longitudinal stacking.
Specifically, referring to fig. 3, 4 and 5, the heat exchange assembly 3 includes a first heat exchange plate 31 and a second heat exchange plate 32, heat exchange channels for circulating cold and hot media are formed between the adjacent first heat exchange plate 31 and the second heat exchange plate 32, the adjacent heat exchange channels are not communicated, and the flow directions of fluid in the adjacent heat exchange channels are staggered, so that the interior of the box 1 is divided into multiple layers of mutually independent spaces, the space utilization in the box 1 is optimized, the volume of the box 1 is smaller, the cold and hot media are divided into different layers when circulating in the box 1 in a limited volume, and the form of alternately arranging the cold and hot media is presented, so that the contact area between the cold and hot media is greatly increased, the heat exchange efficiency is improved, and the heat exchange effect is improved. When the thermal fluid is introduced into the casing 1 through the tube casing 2, the thermal fluid is partitioned into the heat medium passages layer by the partition action of the first heat exchange plate 31 and the second heat exchange plate 32. Meanwhile, when cold fluid is introduced into the tank 1 through the pipe tank 2, the cold fluid is separated into one layer of cold medium passages under the separation action of the first heat exchange plate 31 and the second heat exchange plate 32, so that one cold medium passage is arranged between every two heat medium passages, and the cold medium passages and the heat medium passages can be alternately arranged in the tank 1.
The first heat exchange plate 31 and the second heat exchange plate 32 may be made of plastic, a plastic composite coating layer may be sprayed on the surface of the metal plate, or a plastic composite coating layer may be sprayed on the surface of the metal plate. When the plastic plate material is adopted, the plastic plate material can be rolled and molded by plastic plate, and can also be injection molded or extrusion molded. The cross-sectional shapes of the first heat exchange plate 31 and the second heat exchange plate 32 perpendicular to the fluid flow direction can be a sine curve, a cosine curve, a triangle with a certain radian at the vertex angle, a trapezoid, a rectangle, or different combinations of the cross-sectional shapes. In addition, the first heat exchange plate 31 and the second heat exchange plate 32 may have a shape of a protrusion such as a hemispherical shape, a spherical segment shape, a bar shape, or a combination of these cross-sectional shapes extruded on a plane. By constructing the cross-sectional shapes of the first heat exchange plate 31 and the second heat exchange plate 32 into different curved surface shapes, the contact area between the cold and hot media is larger when heat exchange is performed, which is beneficial to improving the heat exchange efficiency and the heat exchange effect.
Specifically, referring to fig. 3, 4 and 5, the projections of the first heat exchange plate 31 and the second heat exchange plate 32 on the case 1 are both quadrilateral, which matches the case 1. The first bending portion 311 is integrally formed around the first heat exchange plate 31. The first bending portions 311 are bent in a direction away from the first heat exchange plate 31, and bending directions between adjacent first bending portions 311 are opposite. The second heat exchange plate 32 is provided with a second bending part 321 in an integrated manner around, the second bending part 321 bends towards the direction away from the second heat exchange plate 32, and bending directions between adjacent second bending parts 321 are opposite. The first bending portion 311 and the second bending portion 321 that are bent towards the approaching direction are fixedly connected, so that two sides of the first heat exchange plate 31 and the second heat exchange plate 32 are closed, and a penetrating passage is defined between the first heat exchange plate 31, the second heat exchange plate 32, the first bending portion 311 and the second bending portion 321 for passing the cooling and heating medium. The sealing connection between the first bending portion 311 and the second bending portion 321 may be a thermal welding connection, a thermal pressing connection, or a plastic welding connection.
Referring to fig. 2, the case 1 includes four corner uprights 11, side plates 12, and a connection frame 13. The four corner vertical frames 11 are respectively arranged at four corner positions of the heat exchange assembly 3 and fixedly connected with the heat exchange assembly 3. The side plates 12 are positioned at both ends of the quadrangular stand 11 and fixedly connected with the quadrangular stand 11. Meanwhile, one side plate 12 is fixedly connected with the first bending part 311 on the first heat exchange plate 31 at the outermost side, and the other side plate 12 is fixedly connected with the second bending part 321 on the second heat exchange plate 32 at the outermost side, so that the two side plates 12 enclose the heat exchange assembly 3 at the inner side. The connecting frame 13 is fixedly arranged at the edge positions of the four-corner stand 11 and the side plate 12 and is used for connecting with the pipe box 2. The surfaces of the four-corner vertical frames 11 and the side plates 12 which are contacted with the medium are made of plastic plates, or are made of metal material surfaces by spraying plastic composite coating layers, or are made of metal material inner side surfaces by combining plastic lining layers or all composite coating plastic material layers.
Referring to fig. 1 and 2, a flange 21 is integrally formed on a side of the tube box 2 near the box body 1, and through holes for bolts to pass through are formed on the flange 21 and the connecting frame 13, so that the flange 21 and the connecting frame 13 can be in flange connection. Meanwhile, the flange connection mode is more convenient to install and detach, good in sealing performance and capable of avoiding leakage between the pipe box 2 and the box body 1.
The implementation principle of the first embodiment of the application is as follows: cold fluid and hot fluid are respectively introduced into the box body 1 through the pipe box 2, and the introduction directions of the cold fluid and the hot fluid are crossed. When the fluid is introduced into the tank 1, the fluid is split into the fluid channels formed by the first heat exchange plate 31 and the second heat exchange plate 32 under the action of the first bending part 311 and the second bending part 321, so that the hot fluid and the cold fluid are alternately arranged in the tank 1, and cross-flow heat exchange is realized when the hot fluid and the cold fluid flow through the tank 1.
Example two
The overall structure of the second embodiment is the same as that of the first embodiment, except that the connection manner between the tube housing 2 and the housing 1 is different. Specific: referring to fig. 6 and 7, the tube box 2 is integrally formed with a flange 21 on a side thereof adjacent to the box body 1. The flange 21 is fixedly provided with a connecting block 211, the connecting frame 13 is provided with a connecting hole 131 for the connecting block 211 to pass through, and the box 1 is provided with a positioning mechanism for fixing the position of the connecting block 211. When the pipe box 2 is installed, a corresponding sealing gasket is placed between the flange 21 and the connecting frame 13 and used for enhancing the tightness of the gap between the flange 21 and the connecting frame 13. The connecting block 211 is inserted into the connecting hole 131, and the connecting block 211 is fixed using the positioning mechanism, so that the fixed connection between the pair of pipes 2 and the casing 1 can be achieved.
Referring to fig. 6 and 7, the positioning mechanism includes a top block 41 slidably disposed on the connection frame 13, a through hole formed on the connection block 211, and a pushing component for pushing the top block 41 to be inserted into the through hole. The top block 41 is fixedly provided with a dovetail block, and the connecting frame 13 is provided with dovetail grooves with two closed ends, so that the dovetail block is arranged in the dovetail grooves in a sliding manner, and the top block 41 can slide on the connecting frame 13 and cannot be separated from the connecting frame 13. The sectional shape of the top block 41 is set to be triangular, and after the connection block 211 is inserted into the connection hole 131, the pushing assembly can push the top block 41 so that the top block 41 protrudes into the through hole. Along with the continuous movement of the top block 41, the inclined surface of the top block 41 pushes the connection block 211 to move, so that the connection block 211 drives the flange 21 to move towards the direction close to the connection frame 13, thereby being capable of extruding the sealing gasket and enhancing the sealing performance. Meanwhile, the jack block 41 is inserted into the through hole on the connecting block 211 to fix the position of the connecting block 211, so that the connecting block 211 cannot be pulled out from the connecting hole 131.
Referring to fig. 6 and 8, the pushing assembly includes a first positioning plate 42 inserted into two ends of the quadrangular stand 11 and a second positioning plate 43 fixedly disposed at one end of the first positioning plate 42. The dovetail blocks are fixedly arranged on the first positioning plates 42, and dovetail grooves are formed in the four-corner vertical frames 11, so that the dovetail blocks can be inserted into the dovetail grooves, and the first positioning plates 42 are more stable when inserted into the four-corner vertical frames 11, and are not easy to fall off from the four-corner vertical frames 11. When the first positioning plate 42 is fully extended into the four-corner stand 11, both the first positioning plate 42 and the second positioning plate 43 can abut against the top block 41. Specifically, the top block 41 that the first positioning plate 42 abuts against is located on the connection frame 13 on the quadrangular stand 11, and the top block 41 that the second positioning plate 43 abuts against is located on the connection frame 13 on the side plate 12. Under the action of the first positioning plate 42 and the second positioning plate 43, the top block 41 is inserted into the through hole of the connection block 211, thereby fixing the tube box 2 to the box body 1. The rounded corners are arranged at the two ends of the top block 41 on the connecting frame 13 on the four-corner stand 11, so that the top block 41 is easier to be pressed when the first positioning plate 42 is inserted into the four-corner stand 11.
Further, referring to fig. 6 and 8, in order to fix the position of the first positioning plate 42, a positioning block 421 is fixedly provided at an end of the first positioning plate 42 remote from the second positioning plate 43. When the first positioning plates 42 at the two ends of the four-corner stand 11 are completely inserted into the four-corner stand 11, the two positioning blocks 421 can be spliced together. The positioning block 421 is provided with a half threaded hole, and when the two positioning blocks 421 are spliced together, the two half threaded holes form a complete threaded hole, so that the positioning bolt 44 can be connected at the threaded hole in a threaded manner. The positioning bolts 44 can limit the two positioning blocks 421, so that dislocation movement cannot occur between the two positioning blocks 421, and the two first positioning plates 42 are fixedly connected together, so that the first positioning plates 42 cannot be pulled out from the four-corner stand 11. After the position of the first positioning plate 42 is fixed, the position of the second positioning plate 43 is also fixed, so that the position of the top block 41 is fixed, and the connection block 211 cannot be pulled out from the connection frame 13, that is, the fixed connection between the pair of the tanks 2 and the tank 1 is realized.
Further, referring to fig. 6 and 8, in order to facilitate the installation of the positioning bolt 44, a pre-positioning piece 4211 is hinged to the positioning piece 421, the pre-positioning piece 4211 is L-shaped, and a pre-positioning groove 4212 matching with the pre-positioning piece 4211 is formed in the positioning piece 421. When the two positioning blocks 421 are spliced together, the pre-positioning piece 4211 on one positioning block 421 is rotated, so that the pre-positioning piece 4211 is inserted into the pre-positioning groove 4212 on the other positioning block 421, pre-fixing between the two positioning blocks 421 is achieved, and loosening is not easy to occur between the two positioning blocks 421 when the positioning bolts 44 are installed subsequently. Meanwhile, the pre-positioning plates 4211 are provided with openings for the positioning bolts 44 to pass through, so that after the positioning bolts 44 are installed, nuts of the positioning bolts 44 can be abutted against the two pre-positioning plates 4211 to press and fix the two pre-positioning plates 4211.
The implementation principle of the second embodiment of the application is as follows: when the pipe box 2 and the box body 1 are mounted, the connection block 211 on the pipe box 2 is inserted into the connection hole 131. Then, the first positioning plate 42 is inserted into the four-corner vertical frame 11, and in the process that the first positioning plate 42 extends into the four-corner vertical frame 11, the first positioning plate 42 abuts against the top block 41, so that the top block 41 extends into the through hole and pushes the flange 21 to move towards the connecting frame 13. When the first positioning plate 42 is completely inserted into the quadrangular riser 11, the second positioning plate 43 abuts against the top block 41. At this time, the two positioning blocks 421 are spliced together, and the pre-positioning piece 4211 is rotated, so that the pre-positioning piece 4211 is inserted into the pre-positioning groove 4212. The final mounting positioning bolts 44 connect and position the two positioning blocks 421.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. A plastic plate heat exchanger, characterized by: including box (1), be connected with pipe box (2) on box (1), pile up in box (1) and be provided with two at least heat exchange component (3), heat exchange component includes first heat exchange plate (31) and second heat exchange plate (32), and is adjacent constitute the heat transfer passageway that supplies cold and hot medium to circulate between first heat exchange plate (31) and second heat exchange plate (32), adjacent the crisscross setting of flow direction of fluid in the heat transfer passageway just each other does not communicate with each other, box (1) includes four corners grudging post (11), curb plate (12) and connecting frame (13), heat exchange component arranges along the length direction of four corners grudging post (11), curb plate (12) are fixed to be set up in the both sides of four corners grudging post (11) and enclose heat exchange component (3) inboard, connecting frame (13) are fixed to be set up at the edge of four corners grudging post (11) and curb plate (12), integrated into one piece has turn-ups (21) on pipe box (2), fixedly provided with turn-ups (211) on heat transfer passageway, connecting frame (13) are provided with connecting block (211) and connecting block (211) are connected with connecting block (211) and are arranged on the connecting block (41) and are used for connecting block (41) setting up on the locating mechanism (41) The pushing component is arranged on the through hole of the connecting block (211) and used for pushing the pushing block (41) to be inserted into the through hole; the cross section of the top block (41) is triangular, and when the top block (41) is inserted into the through hole, the flanging (21) is driven to move towards the direction close to the connecting frame (13).
2. A plastic plate heat exchanger according to claim 1, characterized in that: the heat exchange plate comprises a first heat exchange plate (31), a second heat exchange plate (32) and a first bending part (311) arranged around the first heat exchange plate, wherein the bending directions of the adjacent first bending parts (311) are opposite, a second bending part (321) arranged around the second heat exchange plate (32), the bending directions of the adjacent second bending parts (321) are opposite, and the first bending parts (311) and the second bending parts (321) which are bent towards the mutually approaching directions are mutually fixed.
3. A plastic plate heat exchanger according to claim 1, characterized in that: the cross-sectional shapes of the first heat exchange plate (31) and the second heat exchange plate (32) are curved surfaces.
4. A plastic plate heat exchanger according to claim 1, characterized in that: the pushing component comprises a first positioning plate (42) inserted into two ends of the four-corner vertical frame (11) and a second positioning plate (43) fixedly arranged at one end of the first positioning plate (42), and when the first positioning plate (42) stretches into the four-corner vertical frame (11), the first positioning plate (42) and the second positioning plate (43) can both prop against the top block (41) and push the top block (41) to be inserted into the through hole.
5. A plastic plate heat exchanger according to claim 4, wherein: the one end that second locating plate (43) was kept away from to first locating plate (42) is fixed to be provided with locating piece (421), half screw hole has been seted up on locating piece (421), two when first locating plate (42) all stretches into in four corners grudging post (11), two locating pieces (421) can mutually amalgamate together and two half screw holes constitute complete screw hole, threaded connection has positioning bolt (44) on the screw hole.
6. A plastic plate heat exchanger according to claim 5, wherein: the positioning block (421) is hinged with a pre-positioning plate (4211), the positioning block (421) is provided with a pre-positioning groove (4212) matched with the pre-positioning plate (4211), when the two positioning blocks (421) are spliced together, the pre-positioning plate (4211) can be spliced in the pre-positioning groove (4212), and the pre-positioning plate (4211) is provided with a gap for a positioning bolt (44) to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211662037.1A CN115752040B (en) | 2022-12-23 | 2022-12-23 | Plastic plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211662037.1A CN115752040B (en) | 2022-12-23 | 2022-12-23 | Plastic plate heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115752040A CN115752040A (en) | 2023-03-07 |
| CN115752040B true CN115752040B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211662037.1A Active CN115752040B (en) | 2022-12-23 | 2022-12-23 | Plastic plate heat exchanger |
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| CN (1) | CN115752040B (en) |
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| CN106705716A (en) * | 2017-02-03 | 2017-05-24 | 孟莫克化工成套设备(上海)有限公司 | Plate-type gas gas-heat exchanger |
| CN107014231A (en) * | 2017-06-06 | 2017-08-04 | 赵立新 | A kind of plate-type heat recovery device |
| CN211084919U (en) * | 2019-11-23 | 2020-07-24 | 济南章运机械科技有限公司 | Plate heat exchanger capable of exchanging heat uniformly |
| CN215832532U (en) * | 2021-08-13 | 2022-02-15 | 郑州大学 | Cross flow plate type heat exchange plate |
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2022
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| CN1760620A (en) * | 2005-11-10 | 2006-04-19 | 华东理工大学 | Heat exchanger of heterotype boads |
| CN103047887A (en) * | 2012-11-13 | 2013-04-17 | 井连庆 | Gas-phase corrugated plate heat exchanger |
| CN106705716A (en) * | 2017-02-03 | 2017-05-24 | 孟莫克化工成套设备(上海)有限公司 | Plate-type gas gas-heat exchanger |
| CN107014231A (en) * | 2017-06-06 | 2017-08-04 | 赵立新 | A kind of plate-type heat recovery device |
| CN211084919U (en) * | 2019-11-23 | 2020-07-24 | 济南章运机械科技有限公司 | Plate heat exchanger capable of exchanging heat uniformly |
| CN215832532U (en) * | 2021-08-13 | 2022-02-15 | 郑州大学 | Cross flow plate type heat exchange plate |
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| CN115752040A (en) | 2023-03-07 |
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