CN111271856A - Liquid circulation type heat recovery device - Google Patents
Liquid circulation type heat recovery device Download PDFInfo
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- CN111271856A CN111271856A CN202010103930.5A CN202010103930A CN111271856A CN 111271856 A CN111271856 A CN 111271856A CN 202010103930 A CN202010103930 A CN 202010103930A CN 111271856 A CN111271856 A CN 111271856A
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- 238000011084 recovery Methods 0.000 title claims abstract description 59
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 229920003023 plastic Polymers 0.000 claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 239000012943 hotmelt Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 241000894006 Bacteria Species 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000009395 breeding Methods 0.000 abstract description 4
- 230000001488 breeding effect Effects 0.000 abstract description 4
- 230000001965 increasing effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000002968 anti-fracture Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/061—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material for domestic or space-heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
- F24F2012/005—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using heat pipes
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a liquid circulating type heat recovery device which comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger and the second heat exchanger are correspondingly arranged in a new air duct and a return air duct, two ports of the first heat exchanger are correspondingly connected with two ports of the second heat exchanger through pipelines to form a heat recovery circulation loop, a circulating pump is arranged in the heat recovery circulation loop, and the first heat exchanger and the second heat exchanger are both plastic heat exchangers. The novel air conditioner has the advantages of simple structure, low cost, strong corrosion resistance and high heat exchange efficiency, can not pollute fresh air due to bacteria breeding, and is particularly suitable for being used in places with higher requirements on fresh air quality, such as hospitals and kindergartens.
Description
Technical Field
The invention relates to a heat recovery device of an air conditioning system, in particular to a liquid circulation type heat recovery device.
Background
In the air conditioner field, need handle the comfort level in order to improve indoor environment to the new trend usually, cool down dehumidification to the new trend promptly and handle, winter festival adds thermal humidification to the new trend. In order to recycle the energy in the return air, the existing air conditioning system is usually provided with a heat recovery device to achieve the purpose of energy conservation. However, the existing heat recovery device has the problems of complex structure, inconvenient use, high price and high energy consumption, and particularly, the adopted coil finned heat exchanger is easy to be dirty and blocked, so that the wind resistance is increased, the heat exchange efficiency is influenced, air is polluted due to bacteria and mildew, and the fresh air quality is influenced.
Disclosure of Invention
The invention aims to provide a liquid circulation type heat recovery device which has the advantages of simple structure, low cost, strong corrosion resistance and high heat exchange efficiency, does not pollute fresh air due to bacteria breeding, and is particularly suitable for being used in places with higher requirements on fresh air quality, such as hospitals, kindergartens and the like.
In order to solve the above problems in the prior art, the present invention provides a liquid circulation type heat recovery device, which comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger and the second heat exchanger are correspondingly arranged in a new air duct and a return air duct, two ports of the first heat exchanger are correspondingly connected with two ports of the second heat exchanger through pipelines to form a heat recovery circulation loop, a circulation pump is arranged in the heat recovery circulation loop, and the first heat exchanger and the second heat exchanger are both plastic heat exchangers.
Further, the liquid circulation type heat recovery device is characterized in that the fresh air duct is provided with a fresh air fan at the rear side of the first heat exchanger, and the return air duct is provided with a return air fan at the front side of the second heat exchanger.
Further, the liquid circulation type heat recovery device is characterized in that a first spraying device facing the first heat exchanger is arranged at the front side of the first heat exchanger of the fresh air duct, and a second spraying device facing the second heat exchanger is arranged between the second heat exchanger and the return air fan of the return air duct.
Further, the liquid circulation type heat recovery device is characterized in that the plastic heat exchanger is formed by combining a plurality of heat exchange modules, each heat exchange module comprises a plurality of capillary hole heat exchange plates which are distributed at intervals in parallel, one ends of the capillary hole heat exchange plates are communicated with each other through a connecting seat, the other ends of the capillary hole heat exchange plates are communicated with each other through another connecting seat, and the capillary hole heat exchange plates and the connecting seats are made of plastics.
Further, the liquid circulation type heat recovery device comprises a base plate, wherein the capillary heat exchange plate comprises capillary holes which are distributed in parallel at intervals, heat dissipation grooves which are distributed in parallel at intervals are arranged on the upper side face and the lower side face of the base plate, and the heat dissipation grooves correspond to the adjacent capillary holes in position.
Further, the invention relates to a liquid circulation type heat recovery device, wherein the connecting seat comprises a hollow main body, the left end wall and the right end wall of the main body are respectively provided with a first connector, the front side wall and the rear side wall of the main body are respectively provided with two second connectors, the upper side wall or the lower side wall of the main body is provided with a plurality of slots which are distributed in parallel at intervals, the peripheral wall of each slot is provided with a limiting table for blocking a capillary hole heat exchange plate, and the bottom of each slot is provided with a plurality of communicating holes for communicating the slot with the inner cavity of the main body; the two ends of the capillary hole heat exchange plates in the heat exchange modules are respectively inserted into the slots of the corresponding connecting seats and are in hot-melt sealing connection, and the heat exchange modules in the plastic heat exchanger are in hot-melt sealing connection through the first interface or the second interface.
Furthermore, the invention relates to a liquid circulation heat recovery device, wherein, a space is left between two ends of the heat dissipation groove and two ends of the substrate.
Further, the invention relates to a liquid circulation type heat recovery device, wherein the capillary hole is a circular hole or a strip-shaped hole with arc-shaped cross section at two ends.
Further, the invention relates to a liquid circulation heat recovery device, wherein the shortest distance between the upper and lower side surfaces of the base plate and the capillary holes and the shortest distance between adjacent capillary holes are both less than 1/2 of the height of the capillary holes.
Further, the invention relates to a liquid circulation type heat recovery device, wherein two ends of the new air duct and the air return duct are respectively provided with a connecting flange.
Compared with the prior art, the liquid circulation type heat recovery device has the following advantages: the invention sets the first heat exchanger and the second heat exchanger, the first heat exchanger and the second heat exchanger are correspondingly set in the new air duct and the air return duct, two ports of the first heat exchanger are correspondingly connected with two ports of the second heat exchanger through pipelines to form a heat recovery circulation loop, a circulation pump is set in the heat recovery circulation loop, and the first heat exchanger and the second heat exchanger both adopt plastic heat exchangers. Therefore, the liquid circulation type heat recovery device with simple structure, low cost, strong corrosion resistance and high heat exchange efficiency is formed. In practical application, the fresh air duct and the return air duct are correspondingly arranged in the fresh air duct and the return air duct of the air conditioning system, and after the circulating pump is started, the recycling of return air energy can be realized through the circulating flow of the working medium in the heat recovery circulating loop. The method specifically comprises the following steps: in the summer refrigeration working condition, the fresh air exchanges heat with the working medium at the first heat exchanger, the temperature of the fresh air is reduced, and the temperature of the working medium is increased; the return air exchanges heat with the working medium at the second heat exchanger, the temperature of the return air is increased, and the temperature of the working medium is reduced. Under the heating working condition in winter, the fresh air exchanges heat with the working medium at the first heat exchanger, the temperature of the fresh air is increased, and the temperature of the working medium is reduced; the return air exchanges heat with the working medium at the second heat exchanger, the temperature of the return air is reduced, and the temperature of the working medium is increased. According to the invention, the heat recovery circulation loop formed by the first heat exchanger and the second heat exchanger is arranged, and only a small amount of electric energy is consumed by the circulation pump in the operation process, so that the energy consumption is greatly reduced compared with the existing heat recovery device; through making first heat exchanger and second heat exchanger all adopt plastic heat exchanger, the cost is reduced has strengthened corrosion resistance, has improved heat exchange efficiency, and can not cause the pollution to the new trend because of breeding the bacterium, especially is fit for places such as hospital, kindergarten to have higher requirement to the new trend quality and uses.
The liquid circulation heat recovery apparatus according to the present invention will be described in detail with reference to the embodiments shown in the drawings.
Drawings
FIG. 1 is a schematic view of a liquid circulation heat recovery apparatus according to the present invention;
FIG. 2 is a front view of a plastic heat exchanger in a liquid circulation heat recovery apparatus according to the present invention;
FIG. 3 is a perspective view of a plastic heat exchanger in a liquid circulation heat recovery apparatus according to the present invention;
FIG. 4 is a front view of a heat exchanging module of a liquid circulation heat recovery apparatus according to the present invention;
FIG. 5 is a perspective view of a heat exchanging module of the liquid circulation heat recovery device of the present invention;
FIG. 6 is a front view of a capillary heat exchange plate in a liquid circulation heat recovery device according to the present invention;
FIG. 7 is a view taken along line A-A of FIG. 6;
FIG. 8 is an enlarged partial view of the left end of FIG. 7;
FIG. 9 is a perspective view of a capillary heat exchange plate in a liquid circulation heat recovery device according to the present invention;
FIG. 10 is an enlarged view of a portion of FIG. 9 at position B;
FIG. 11 is a front view of a connecting seat of a liquid circulation type heat recovery apparatus according to the present invention;
FIG. 12 is a top view of a connection seat of the liquid circulation heat recovery device of the present invention;
FIG. 13 is a perspective view of a connecting seat of the liquid circulation heat recovery device of the present invention;
FIG. 14 is an enlarged view of a portion of FIG. 12 at position C;
FIG. 15 is a view from direction D-D of FIG. 12;
fig. 16 is a view from E-E in fig. 12.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for understanding, and are not intended to limit the technical solution and the claimed scope of the present invention.
Fig. 1 shows a specific embodiment of a liquid circulation heat recovery apparatus according to the present invention, which includes a first heat exchanger 1 and a second heat exchanger 2. The first heat exchanger 1 and the second heat exchanger 2 are correspondingly arranged in the fresh air cylinder 11 and the return air cylinder 21, two ports of the first heat exchanger 1 are correspondingly connected with two ports of the second heat exchanger 2 through pipelines to form a heat recovery circulation loop, a circulation pump is arranged in the heat recovery circulation loop, and the first heat exchanger 1 and the second heat exchanger 2 are made to adopt plastic heat exchangers. The liquid circulation type heat recovery device with simple structure, low cost, strong corrosion resistance and high heat exchange efficiency is formed by the structure. In practical application, the fresh air cylinder 11 and the return air cylinder 21 are correspondingly arranged in a fresh air duct and a return air duct of an air conditioning system, and after a circulating pump is started, the recycling of return air energy can be realized through the circulating flow of working media in a heat recovery circulating loop. The method specifically comprises the following steps: in the summer refrigeration working condition, the fresh air exchanges heat with the working medium at the first heat exchanger 1, the temperature of the fresh air is reduced, and the temperature of the working medium is increased; the return air exchanges heat with the working medium at the second heat exchanger 2, the temperature of the return air is increased, and the temperature of the working medium is reduced. Under the heating working condition in winter, the fresh air exchanges heat with the working medium at the first heat exchanger 1, the temperature of the fresh air is increased, and the temperature of the working medium is reduced; the return air exchanges heat with the working medium at the second heat exchanger 2, the temperature of the return air is reduced, and the temperature of the working medium is increased. According to the invention, the heat recovery circulation loop formed by the first heat exchanger 1 and the second heat exchanger 2 is arranged, and only a small amount of electric energy is consumed by the circulation pump in the operation process, so that the energy consumption is greatly reduced compared with the existing heat recovery device; through making first heat exchanger 1 and second heat exchanger 2 all adopt plastic heat exchanger, the cost is reduced has strengthened corrosion resistance, has improved heat exchange efficiency, and can not cause the pollution to the new trend because of breeding the bacterium, especially is fit for places such as hospital, kindergarten that have higher requirement to the new trend quality to use. It should be noted that the working medium is water or an antifreeze.
As an optimized scheme, in the present embodiment, the fresh air blower 12 is disposed in the fresh air duct 11 and at the rear side position of the first heat exchanger 1, and the return air blower 22 is disposed in the return air duct 21 and at the front side position of the second heat exchanger 2. The fresh air fan 12 and the return air fan 22 can correspondingly guide fresh air and return air, and the practicability is enhanced. It should be noted that the rear position of the first heat exchanger 1 and the front position of the second heat exchanger 2 are set according to the flow direction of air (fresh air and return air). Meanwhile, the first spray device 13 facing the first heat exchanger 1 is disposed in the fresh air duct 11 and at a front side position of the first heat exchanger 1 in the present embodiment. Connect high pressure water source through first spray set 13 and can spray, remove dust to first heat exchanger 1, guaranteed first heat exchanger 1's heat transfer performance, and can avoid first heat exchanger to breed the bacterium and influence the new trend quality, under the refrigeration operating mode in summer, still can strengthen new trend cooling effect through spray water evaporation. Similarly, the second spraying device 23 facing the second heat exchanger 2 is provided in the return air duct 21 at a position between the second heat exchanger 2 and the return air blower 22. The second heat exchanger 2 can be sprayed and dedusted by connecting the second spraying device 23 with a high-pressure water source, so that the heat exchange performance of the second heat exchanger 2 is ensured.
As shown in fig. 2 to 16, as a specific embodiment, the present invention adopts a structure in which a plurality of heat exchange modules are combined to form a plastic heat exchanger, and adopts the following structure for the heat exchange modules: the method comprises the steps of arranging a plurality of capillary heat exchange plates 3 which are distributed at intervals in parallel, enabling one ends of the capillary heat exchange plates 3 to be mutually communicated through one connecting seat 4, enabling the other ends of the capillary heat exchange plates 3 to be mutually communicated through the other connecting seat 4, wherein the capillary heat exchange plates 3 and the connecting seats 4 are both made of plastics. The plastic heat exchanger with the structure has the advantages of simple structure, low cost, high heat exchange efficiency and good expansibility, and a plurality of heat exchange modules can be combined into plastic heat exchangers with different thicknesses and widths according to the arrangement space and the heat exchange quantity. Meanwhile, the capillary heat exchange plate 3 adopts the following structure in the specific embodiment: the capillary heat dissipation device comprises a substrate 31, capillary holes 32 distributed in parallel at intervals are arranged in the substrate 31, and heat dissipation grooves 33 distributed in parallel at intervals are arranged on the upper side surface and the lower side surface of the substrate 31, so that the heat dissipation grooves 33 correspond to the adjacent capillary holes 32. The capillary hole heat exchange plate has the advantages of simple structure, easiness in preparation, good integrity and high heat exchange efficiency, compared with the existing single separated capillary tube, the capillary hole heat exchange plate has the advantages of enhancing the structural strength and the anti-fracture capability, improving the assembly efficiency, increasing the heat exchange area of the capillary hole heat exchange plate through the heat dissipation groove 33 and improving the heat exchange effect.
In the present invention, as a specific embodiment, the connecting base 4 is provided with a hollow main body 41, the left and right end walls of the main body 41 are respectively provided with a first connector 42, the front and rear side walls of the main body 41 are respectively provided with two second connectors 43, the upper side wall or the lower side wall of the main body 41 is provided with a plurality of slots 44 distributed in parallel at intervals, the peripheral wall of the slot 44 is provided with a limit stage 45 for blocking the capillary hole heat exchange plate 3, and the bottom of the slot 44 is provided with a plurality of communication holes 46 for communicating the slot 44 with the inner cavity of the main body 41. When the heat exchange module is assembled, the two ends of the capillary heat exchange plate 3 are respectively inserted into the slots 44 of the corresponding connecting seats 4 and are hermetically connected through hot melting; when the plastic heat exchanger is assembled, the heat exchange modules are in hot-melt sealing connection through the first interface 42 or the second interface 43. The connecting seat 4 with the structure has the advantages of simple structure, convenient connection, high standardization degree and good expansibility. It should be noted that, the slots 44 on the connecting seat 4 are arranged in one-to-one correspondence with the capillary heat exchange plates 3, and for the plastic heat exchanger, except that two first interfaces 42 or second interfaces 43 are reserved as the input port and the output port, the remaining first interfaces 42 or second interfaces 43 should be sealed by using the blocking disc 5 made of plastic material through hot melting. In practical application, two relatively distant first interfaces 42 or second interfaces 43 are usually selected as an input port and an output port to ensure the stability of the working medium circulation flow and the balance of heat exchange. Fig. 2 and fig. 3 only show the plastic heat exchanger formed by four heat exchange modules through the second interface 43 in the longitudinal hot-melt sealing connection, in practical application, the number of the heat exchange modules is not limited to four, the number of the heat exchange modules should be determined according to the size of the heat exchange quantity, the connection mode between the heat exchange modules is not limited to the longitudinal hot-melt sealing connection through the second interface 43, and the transverse hot-melt sealing connection can be performed through the first interface 42 to form the plastic heat exchanger with different thickness and width.
In addition, in the present embodiment, the two ends of the heat dissipation groove 33 of the capillary heat exchange plate 3 are spaced from the two ends of the substrate 31, so as to enhance the integrity and the structural strength, and prevent the heat dissipation groove from affecting the sealing performance of the connection when the heat exchange module is assembled, thereby reducing the difficulty of hot-melt connection. In order to ensure the heat exchange performance of the capillary heat exchange plate 3, the shortest distance between the upper and lower sides of the base plate 31 and the capillary holes 32 and the shortest distance between adjacent capillary holes 32 are both smaller than 1/2, which is the height of the capillary holes 32.
It should be noted that, in practical application, the present invention makes the capillary holes 32 in the capillary heat exchange plate 3 adopt circular holes or strip-shaped holes with arc-shaped cross sections at two ends, so as to increase the occupation ratio of the capillary holes and further increase the heat exchange efficiency. In order to improve the convenience of disassembly and assembly, the two ends of the fresh air cylinder 11 and the air return cylinder 21 are respectively provided with a connecting flange.
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.
Claims (10)
1. The utility model provides a circulating heat recovery unit of liquid, its characterized in that, includes first heat exchanger (1) and second heat exchanger (2), first heat exchanger (1) and second heat exchanger (2) correspond the setting in new dryer (11) and return air section of thick bamboo (21), and the both ends mouth of first heat exchanger (1) corresponds the both ends mouth with second heat exchanger (2) through the pipeline and is connected the heat recovery circulation circuit, is equipped with the circulating pump in the heat recovery circulation circuit, and first heat exchanger (1) and second heat exchanger (2) are plastic heat exchanger.
2. A liquid circulating heat recovery device according to claim 1, characterized in that the fresh air duct (11) is provided with a fresh air blower (12) at the rear side position of the first heat exchanger (1), and the return air duct (21) is provided with a return air blower (22) at the front side position of the second heat exchanger (2).
3. A liquid circulating heat recovery device according to claim 2, characterized in that the fresh air duct (11) is provided with a first spray device (13) facing the first heat exchanger (1) at a position on the front side of the first heat exchanger (1), and the return air duct (21) is provided with a second spray device (23) facing the second heat exchanger (2) at a position between the second heat exchanger (2) and the return air fan (22).
4. A liquid circulating heat recovery device according to claim 3, wherein the plastic heat exchanger is composed of a plurality of heat exchange modules, each heat exchange module comprises a plurality of capillary heat exchange plates (3) spaced in parallel, one end of each capillary heat exchange plate (3) is connected to another end of each capillary heat exchange plate (3) through a connecting base (4), the other ends of the capillary heat exchange plates (3) are connected to another end of each connecting base (4), and the capillary heat exchange plates (3) and the connecting bases (4) are made of plastic.
5. A liquid circulating heat recovery device according to claim 4, wherein the capillary heat exchange plate (3) comprises a base plate (31), the base plate (31) is provided with capillary holes (32) distributed at intervals in parallel, the upper side and the lower side of the base plate (31) are provided with heat dissipation grooves (33) distributed at intervals in parallel, and the heat dissipation grooves (33) correspond to the adjacent capillary holes (32).
6. A liquid circulating heat recovery device according to claim 5, wherein the connecting base (4) comprises a hollow main body (41), the left and right end walls of the main body (41) are respectively provided with a first connector (42), the front and rear side walls of the main body (41) are respectively provided with two second connectors (43), the upper side wall or the lower side wall of the main body (41) is provided with a plurality of parallel slots (44) which are distributed at intervals, the peripheral wall of each slot (44) is provided with a limiting platform (45) for blocking the capillary hole heat exchange plate (3), and the bottom of each slot (44) is provided with a plurality of communicating holes (46) which communicate the slots (44) with the inner cavity of the main body (41); the two ends of the capillary hole heat exchange plates (3) in the heat exchange modules are respectively inserted into the slots (44) of the corresponding connecting seats (4) and are in hot-melt sealing connection, and the heat exchange modules in the plastic heat exchanger are in hot-melt sealing connection through the first interfaces (42) or the second interfaces (43).
7. A liquid circulating heat recovery device according to claim 6, wherein the two ends of the heat dissipation groove (33) are spaced from the two ends of the base plate (31).
8. A liquid circulating heat recovery device according to claim 6, wherein the capillary holes (32) are circular holes or strip-shaped holes with arc-shaped cross sections at both ends.
9. A liquid circulating heat recovery device according to claim 6, wherein the shortest distance between the upper and lower sides of the base plate (31) and the capillary holes (32) and the shortest distance between adjacent capillary holes (32) are less than 1/2 of the height of the capillary holes (32).
10. A liquid circulating heat recovery device according to claim 6, characterized in that the two ends of the fresh air duct (11) and the return air duct (21) are provided with connecting flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103930.5A CN111271856A (en) | 2020-02-20 | 2020-02-20 | Liquid circulation type heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103930.5A CN111271856A (en) | 2020-02-20 | 2020-02-20 | Liquid circulation type heat recovery device |
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| CN111271856A true CN111271856A (en) | 2020-06-12 |
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| CN202010103930.5A Pending CN111271856A (en) | 2020-02-20 | 2020-02-20 | Liquid circulation type heat recovery device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964205A (en) * | 2020-07-31 | 2020-11-20 | 深圳市致诚达科技有限公司 | Control system with air purification degerming |
| CN114279007A (en) * | 2021-11-01 | 2022-04-05 | 际高科技有限公司 | Anti-frosting air source heat pump system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4344480A1 (en) * | 1993-12-21 | 1995-06-22 | Juergen Dipl Ing Lang | Flexible heat exchanger for heat recovery from exhaust gases etc. |
| JPH11325771A (en) * | 1998-05-21 | 1999-11-26 | Taikisha Ltd | Heat exchanger |
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| CN111964205A (en) * | 2020-07-31 | 2020-11-20 | 深圳市致诚达科技有限公司 | Control system with air purification degerming |
| CN114279007A (en) * | 2021-11-01 | 2022-04-05 | 际高科技有限公司 | Anti-frosting air source heat pump system |
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