CN212132827U - Liquid circulation type heat recovery device - Google Patents

Abstract

The utility model discloses a liquid circulation formula heat reclamation device, including first heat exchanger and second heat exchanger, first heat exchanger and second heat exchanger correspond the setting in new dryer and return air section, and the both ends mouth of first heat exchanger passes through the pipeline correspondence and is connected the formation heat recovery circulation circuit with the both ends mouth of second heat exchanger, are equipped with the circulating pump in the heat recovery circulation circuit, and first heat exchanger and second heat exchanger are plastic heat exchanger. 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

Liquid circulation type heat recovery device

Technical Field

The utility model relates to an air conditioning system heat reclamation device, concretely relates to liquid circulating heat reclamation 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.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circulating heat recovery unit of liquid, it has simple structure, low cost, corrosion resistance is strong, advantage that heat exchange efficiency is high, 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.

For solving the above-mentioned problem that exists among the prior art, the utility model provides a liquid circulation formula heat recovery device, including first heat exchanger and second heat exchanger, first heat exchanger and second heat exchanger correspond the setting in new dryer and return air section, and the both ends mouth of first heat exchanger passes through the pipeline correspondence and is connected the formation heat recovery circulation circuit with the both ends mouth of second heat exchanger, are equipped with the circulating pump among the heat recovery circulation circuit, and first heat exchanger and second heat exchanger are plastic heat exchanger.

Further, the utility model relates to a liquid circulation formula heat recovery device, wherein, new dryer is equipped with new trend fan at the rear side position of first heat exchanger, the return air section of thick bamboo is equipped with return air fan at the front side position of second heat exchanger.

Further, the utility model relates to a liquid circulation formula heat recovery device, wherein, new dryer is equipped with the first spray set towards first heat exchanger in the front side position of first heat exchanger, the position of return air section between second heat exchanger and return air fan is equipped with the second spray set towards the second heat exchanger.

Further, the utility model relates to a liquid circulation formula heat recovery unit, wherein, plastic heat exchanger comprises a plurality of heat transfer module combinations, and heat transfer module includes parallel interval distribution's polylith capillary hole heat transfer board, and the one end of polylith capillary hole heat transfer board communicates each other through a connecting seat, and the other end of polylith capillary hole heat transfer board communicates each other through another connecting seat, and capillary hole heat transfer board and connecting seat all adopt plastics to make.

Further, the utility model relates to a liquid circulation formula heat recovery device, wherein, capillary heat transfer board includes the base plate, is equipped with parallel interval distribution's capillary hole in the base plate, and the last side and the downside of base plate all are equipped with parallel interval distribution's heat dissipation slot, and the position between heat dissipation slot and the adjacent capillary hole corresponds.

Further, the utility model relates to a liquid circulation type heat recovery device, wherein, the connecting seat includes hollow main part, is equipped with first interface on the left and right end wall of main part respectively, is equipped with two second interfaces on the front and back lateral wall of main part respectively, is equipped with a plurality of slots of parallel interval distribution on the upper lateral wall or the lower lateral wall of main part, is equipped with the spacing platform that is used for blockking capillary hole heat transfer board on the perisporium of slot, and the tank bottom of slot is equipped with the intercommunicating pore of a plurality of intercommunication slots and main part inner chamber; 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.

Further, the utility model relates to a liquid circulation formula heat reclamation device, wherein, the both ends correspondence of heat dissipation slot and the both ends of base plate all leave the interval between.

Further, the utility model relates to a liquid circulation formula heat reclamation device, wherein, the capillary is round hole or cross-section both ends and is curved bar hole.

Further, the utility model relates to a liquid circulation formula heat reclamation device, wherein, the upper and lower side of base plate all is less than 1/2 of capillary height to the shortest distance of capillary and the shortest distance between the adjacent capillary.

Further, the utility model relates to a liquid circulation formula heat recovery device, wherein, the both ends of new dryer and return air section of thick bamboo all are equipped with flange.

Compared with the prior art, the utility model, a liquid circulation type heat recovery device has the following advantages: the utility model discloses a set up first heat exchanger and second heat exchanger, correspond first heat exchanger and second heat exchanger and set up in new dryer and air return cylinder, make the both ends mouth of first heat exchanger pass through the pipeline and correspond and be connected the formation heat recovery circulation circuit with the both ends mouth of second heat exchanger, set up the circulating pump in heat recovery circulation circuit to make first heat exchanger and second heat exchanger all adopt plastic heat exchanger. 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. The utility model has the advantages that the heat recovery circulation loop formed by the first heat exchanger and the second heat exchanger is arranged, only a small amount of electric energy is consumed by the circulating pump in the operation process, and 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 type 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 structural view of a liquid circulation heat recovery device according to the present invention;

FIG. 2 is a front view of a plastic heat exchanger in a liquid circulation heat recovery device according to the present invention;

FIG. 3 is a perspective view of a plastic heat exchanger in a liquid circulation heat recovery device according to the present invention;

FIG. 4 is a front view of the heat exchanging module of the liquid circulation heat recovery device of the present invention;

FIG. 5 is a perspective view of a heat exchange module in the liquid circulation heat recovery apparatus 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 heat recovery device of the present invention;

FIG. 12 is a top view of a connecting seat of a liquid circulation heat recovery device according to 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

It should be noted that, in the present invention, the terms of upper, lower, left, right, front, rear, etc. are only described according to the accompanying drawings, so as to facilitate understanding, and are not intended to limit the technical solution and the scope of the present invention.

Fig. 1 shows a specific embodiment of a liquid circulation heat recovery device of 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. The utility model has the advantages that the heat recovery circulation loop composed of the first heat exchanger 1 and the second heat exchanger 2 is arranged, only a small amount of electric energy is consumed by the circulation pump in the operation process, and 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 makes a plastic heat exchanger adopt a structure formed by combining a plurality of heat exchange modules, and makes the heat exchange modules adopt the following structure: 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.

As a specific embodiment, the utility model discloses make connecting seat 4 set up hollow main part 41, set up first interface 42 on the end wall about main part 41 respectively, set up two second interfaces 43 on the lateral wall around main part 41 respectively to set up a plurality of slots 44 of parallel interval distribution on the lateral wall of going up of main part 41 or the lower lateral wall, set up spacing platform 45 that is used for blockking capillary hole heat transfer board 3 on the perisporium of slot 44, set up a plurality of intercommunications slots 44 and the intercommunicating pore 46 of main part 41 inner chamber at the tank bottom of slot 44. 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 utility model discloses make capillary 32 in the capillary heat transfer plate 3 adopt round hole or cross-section both ends to be curved bar hole to improve the proportion of capillary, and then improve heat exchange efficiency. For the convenience that improves the dismouting, the utility model discloses still all set up flange at the both ends of new chimney 11 and return air section of thick bamboo 21.

The above embodiments are only descriptions of the preferred embodiments of the present invention, and are not intended to 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 present invention as defined by the claims.

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.

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