CN210070145U - Take heat recovery's window formula fresh air handling unit - Google Patents

Abstract

The utility model discloses a window type fresh air unit with heat recovery. It includes a shell and a heat exchange device. The heat exchange device includes two sets of heat pipes, two mounting plates, a number of heat-conducting blocks and a semiconductor thermopile. There is a new fan inside, a return fan in the return air channel, a number of through holes on the mounting plate, two sets of heat pipes respectively include a number of heat pipes, the heat conduction blocks are vertically arranged in two rows, and are arranged between the two mounting plates. The heat-conducting block is provided with a plurality of accommodating grooves, the inner end portion of the heat pipe is arranged in the accommodating groove, and the semiconductor thermopile is arranged between the two rows of heat-conducting blocks. The utility model performs heat exchange through the improved heat exchange device, so that the structure of the utility model is simple and clear, the size is small, the efficiency is high, the cost is low, and the maintenance is simple; The thermal efficiency is low, the maintenance is inconvenient, and the problem of long-term operation needs to be replaced.

Description

A window type fresh air unit with heat recovery

technical field

The invention relates to the field of window-type fresh air units with heat recovery, in particular to a window-type fresh air unit with heat recovery.

Background technique

As the country's requirements for energy conservation and emission reduction are getting higher and higher, most of the household fresh air ventilation units on the market use ordinary plate fin heat exchanger fresh air units and combined air conditioning units for centralized control. ; The installation size of ordinary plate-fin heat exchanger fresh air units is not large, but generally requires ceiling installation, the initial investment is a bit large, and installation and maintenance are very troublesome; centralized combined air-conditioning units require unified management for control, and the cost is high. , the size is large, it is not economical for single users and a small number of users, and it is not the first choice for households.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a high-efficiency household window type fresh air ventilation unit with heat recovery, so that it can be installed and maintained more conveniently, small in size, and efficient energy exchange, so as to achieve fresh air ventilation. The role of the unit in energy saving and emission reduction.

In order to achieve the above purpose, the present invention provides a window type fresh air unit with heat recovery, which includes a casing and a heat exchange device, and the heat exchange device includes two sets of heat pipes, two mounting plates, several heat conducting blocks and a semiconductor thermopile, The two mounting plates are fixed on the inside of the casing at intervals, and the two sides of the inside of the casing are spaced to form a fresh air passage and a return air passage. The fresh air passage is provided with a fresh fan, and the casings at both ends are provided with fresh air ports and air supply ports. , the return air channel is provided with a return fan, and the shells at both ends are provided with return air ports and air exhaust ports, the mounting plate is provided with a number of through holes, and the two groups of heat pipes respectively include a number of heat pipes. The blocks are arranged in two rows and are arranged between two mounting plates. The heat-conducting blocks are detachably and fixedly connected. The opposite sides of the two rows of heat-conducting blocks are respectively provided with a number of accommodating grooves, and the inner ends of the heat pipes are respectively The semiconductor thermopile is arranged in the receiving groove through the through hole, and the semiconductor thermopile is arranged between two rows of heat conducting blocks.

Further, air filters are provided on the inner side between the fresh air outlet and the heat pipe and between the return air outlet and the heat pipe.

Further, the air filter is a polyester fiber filter.

Further, the heat pipes are arranged and distributed along the airflow direction, and the two sides of the heat pipes are also provided with guide plates at intervals. The guide plates are installed on the inner side of the casing. The heat pipes are arranged between the opposite grooves.

Further, the grooves are arc-shaped, and each groove is arranged concentrically with the center of the heat pipe opposite to it.

Further, the fresh fan and the return fan are both cross-flow fans, the fresh fan is arranged between the heat pipe and the air supply port, and the return fan is arranged between the heat pipe and the air outlet.

Further, the shell includes a shell seat and a front panel detachably connected to the front side of the shell seat, the fresh air outlet and the air outlet are both arranged on the rear side of the shell seat, and the air supply port and the air return port are both arranged in the front. on the panel.

Further, the fresh air outlet and the air outlet are both arranged at the lower part of the rear side of the housing, the air supply outlet and the air return outlet are arranged at the upper part of the front panel, and the air filter, heat pipe and fresh air fan in the fresh air passage. They are arranged in order from bottom to top; the air filter, heat pipe and return fan in the air return channel are arranged in order from top to bottom.

Further, the heat conducting block is an aluminum block.

Further, the through holes on the two mounting plates are arranged in non-same planes, so that the inner ends of the two groups of heat pipes are arranged in a staggered manner.

Beneficial effects: the present invention conducts heat exchange through the improved heat exchange device, so that the present invention has a simple and clear structure, small size, high efficiency, low cost and simple maintenance; The heat transfer efficiency is low, the maintenance is inconvenient, and the long-term operation needs to be replaced.

Description of drawings

Fig. 1 is the structural representation of the window type fresh air unit with heat recovery of the embodiment of the present invention;

2 is a side perspective view of a window type fresh air unit with heat recovery according to an embodiment of the present invention;

3 is a schematic top view of a window type fresh air unit with heat recovery according to an embodiment of the present invention;

Fig. 4 is the rear view schematic diagram of the shell seat of the embodiment of the present invention;

5 is a schematic front view of a front panel according to an embodiment of the present invention;

6 is a schematic structural diagram of a heat exchange device according to an embodiment of the present invention;

7 is a schematic structural diagram of a mounting plate according to an embodiment of the present invention;

8 is a schematic structural diagram of another mounting board according to an embodiment of the present invention;

FIG. 9 is a schematic view of the mechanism of the heat conducting block according to the embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a heat pipe air guide and heat exchange structure according to an embodiment of the present invention.

Detailed ways

The present invention is further illustrated below in conjunction with the accompanying drawings and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

As shown in FIGS. 1 to 9 , an embodiment of the present invention provides a window type fresh air unit with heat recovery, which includes a casing 1 and a heat exchange device 2 . The heat exchange device 2 in the embodiment of the present invention includes two sets of heat pipes 21 , two mounting plates 22 , several heat conducting blocks 23 and a semiconductor thermopile 24 . The mounting plate 22 is preferably a PVC mounting plate, wherein the two mounting plates 22 are fixedly arranged on the inner side of the casing 1 at intervals, so that the two mounting plates 22 form three areas in the interior of the casing 1, two on both sides. The areas are the fresh air channel 3 and the return air channel 4 respectively. A fresh fan 5 is arranged in the fresh air passage 3, a fresh air outlet 6 and an air supply outlet 7 are arranged on the casings at both ends of the fresh air passage 3, a return fan 8 is arranged in the return air passage 4, and the casings 1 at both ends of the return air passage 4 are arranged There is a return air outlet 9 and an air outlet 10 on it.

6 to 9, a plurality of through holes 25 are provided on the mounting plate 22. In order to improve the heat exchange efficiency, it is preferable that the through holes 25 on the two mounting plates 22 are not arranged in the same plane, so that the fresh air passage 3 and the return air are not arranged in the same plane. The inner ends of the heat pipes 21 in the channel 4 are arranged in a staggered manner after being assembled, and do not affect each other. The two groups of heat pipes 21 respectively include several heat pipes. The heat pipes 21 used in the embodiment of the present invention include a pipe body 211. The pipe body 211 is preferably made of brass material. There are heat exchange fins 212. The heat exchange fins 212 are preferably spirally wound on the outside of the tube body 308. The tube body 211 is provided with a working fluid, and the working fluid adopts the prior art. The heat-conducting blocks 23 are preferably made of aluminum blocks, and the heat-conducting blocks 23 are arranged in parallel between the two mounting plates 22 , and the heat-conducting blocks 23 are arranged in two rows, and each row is arranged in several numbers, and on the opposite side of the two rows of the heat-conducting blocks 23 A plurality of accommodating grooves 26 are respectively provided, and the inner end of each heat pipe 21 is disposed in the accommodating groove 26 through a through hole 25 on a mounting plate 22 . The outsides of the heat pipes 21 are respectively arranged in the fresh air passage 3 and the return air passage 4 , and the semiconductor thermopile 24 is in the shape of a flat plate and is arranged between the two rows of heat conducting blocks 23 . The semiconductor thermopile 24 is energized to work, thereby improving the heat conduction efficiency.

The heat-conducting blocks 23 are fixedly connected in a detachable manner, preferably bolted, and then the semiconductor thermopile 24 and the heat pipe 21 are press-fitted therebetween. The number of heat-conducting blocks 23 and the number of accommodating grooves 26 provided on each heat-conducting block 23 can be changed according to the number of heat pipes 21 and actual needs. The number of heat pipes 21 in the fresh air channel 3 and the return air channel 4 is 4 respectively, as shown in Figures 6 to 9, and each heat conduction block 23 is 4 pieces, and each heat conduction block is 4 pieces. The number of accommodating grooves 26 provided on the block 23 is two. In order to improve the thermal conductivity, thermal grease is also provided between the heat pipe 21 and the thermal block 23 .

In order to purify the air, air filters 11 are provided between the fresh air port 6 and the heat pipe 21 and between the return air port 9 and the heat pipe 21 , and the air filter 11 is preferably a polyester fiber filter.

In order to improve the heat exchange efficiency, the heat pipes 21 are preferably arranged and distributed along the airflow direction, and two sides of the heat pipes 21 are respectively provided with baffles 12, the baffles 12 are installed on the inner side of the casing 1, and the inner sides of the two baffles 12 Spaced apart from the heat pipes 21 , the inner sides of the two guide plates 12 are respectively provided with a plurality of grooves 13 opposite to each other, and each heat pipe 21 is disposed between the opposite grooves 13 . The grooves 13 are preferably arranged in an arc shape, and the grooves 13 are arranged concentrically with the center of the heat pipe 21, so that the air ducts between the guide plate 12 and the heat pipe 21 are evenly spaced, and the air is guided between the heat pipes 21 to improve the air flow. heat exchange efficiency. The deflector 12 is preferably a deflector made of PVC material, which is convenient for processing and manufacturing.

Both the fresh fan 5 and the return fan 8 are preferably cross-flow fans. The fresh fan 5 is preferably arranged between the heat pipe 21 and the air outlet 7 , and the return fan 8 is preferably arranged between the heat pipe 21 and the air outlet 10 .

The housing 1 includes a housing base 101 and a front panel 102 detachably connected to the front side of the housing base 101. Specifically, the front side of the housing base 101 is provided with an opening, and the front panel 102 is detachably connected to the opening. Both the air vents 10 are provided on the housing base 101 , and the air supply vents 7 and the air return vents 9 are both provided on the front panel 102 .

In order to reduce the thickness of the fresh air unit and avoid resonance, the fresh air fan 5 and the return fan 8 are preferably not arranged on the same horizontal plane. Both the tuyere 7 and the air return 9 are arranged on the upper part of the front panel 102, the air filter 11, the heat pipe 21 and the fresh fan 5 in the fresh air passage 3 are preferably arranged from bottom to top, and the air filter 11, The heat pipes 21 and the return fan 8 are arranged sequentially from top to bottom.

During the working process, the outdoor fresh air with higher temperature entering the fresh air passage 3 is filtered by the air filter 11 and sent to the room by the fresh air fan 5 after passing through the heat pipe 21 in the fresh air passage 3 . The indoor return air with a lower temperature entering the return air passage 4 is filtered by the air filter 11 , and after passing through the heat pipe 21 of the return air passage 4 , is discharged outdoors by the return fan 8 . In summer, the high temperature heat in the fresh air is transferred to the hot pole of the semiconductor thermopile 24 through the heat pipe 21, and the cold and thermoelectric potential generated by the P-N pole of the semiconductor thermopile 24 transfers the heat from the hot pole to the cold pole, and then from the cold pole It is transferred to the heat pipe 21 in the return air channel 4, thereby realizing the cooling of the fresh air. In winter, the high temperature heat in the return air is transferred to the hot pole of the semiconductor thermopile 24 through the heat pipe 21, and the cold and thermoelectric potential generated by the P-N pole of the semiconductor thermopile 24 transfers the heat from the hot pole to the cold pole, and then from the cold pole to the cold pole. The pole is transferred to the heat pipe 21 in the fresh air channel 3, thereby realizing the heating of the fresh air. The semiconductor thermopile 24 works with an external power supply, which increases the cold and hot electromotive force, thereby achieving the purpose of high-efficiency heat transfer and cold and heat exchange. By changing the electrode connection of the external power supply, the hot electrode and the cold electrode can be switched, which is convenient for switching control in winter and summer.

As shown in FIG. 10 , based on the above embodiments, those skilled in the art can understand that the present invention also provides a heat pipe air guide and heat exchange structure, the structure includes a casing 301 , and an air duct 302 is arranged inside the casing 301 , Air inlets 303 and air outlets 304 are respectively provided at both ends of the air duct 302 , and a number of heat pipes 305 are arranged in the air duct 302 . The heat pipes 305 are arranged and distributed along the airflow direction in the air duct 302 . There is a guide plate 306, the guide plate 306 is installed on the inner side of the casing 301, the inner sides of the two guide plates 306 are spaced from the heat pipe 305, and the inner sides of the two guide plates 306 are respectively provided with a plurality of grooves 307 opposite each other. A number of heat pipes 305 are disposed between opposing grooves 307 . The grooves 307 are preferably arranged in an arc shape, and each groove 307 is arranged concentrically with the center of the heat pipe 305 opposite to it, so that the air ducts between the guide plates 306 and the heat pipes 305 are evenly spaced, and the air is directed between the heat pipes 305. Diversion to improve heat exchange efficiency. The deflector 306 is preferably a deflector made of PVC, which is convenient for processing and manufacturing. The heat pipe 305 includes a pipe body 308. The pipe body 308 is preferably made of a brass material. The outer side of the pipe body 308 is provided with heat exchange fins 309. The working fluid is provided inside the pipe body 308 .

The above description is only a preferred embodiment of the present invention, and it should be pointed out that for those skilled in the art, other parts that are not specifically described belong to the prior art or common knowledge. On the premise of not departing from the principles of the present invention, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of window type fresh air unit with heat recovery, comprises shell and heat exchange device, it is characterized in that, described heat exchange device comprises two groups of heat pipes, two mounting plates, some heat-conducting blocks and semiconductor thermopile, described two The two mounting plates are fixed on the inner side of the casing at intervals, and the two sides of the inner casing are spaced to form a fresh air channel and a return air channel. There is a return fan in the return air channel, and the shells at both ends are provided with return air ports and air exhaust ports, the mounting plate is provided with a number of through holes, the two groups of heat pipes respectively include a number of heat pipes, and the heat conduction block is arranged to Two rows are arranged between two mounting plates. The heat-conducting blocks are detachably and fixedly connected. The opposite sides of the two rows of heat-conducting blocks are respectively provided with a plurality of accommodating grooves, and the inner ends of the heat pipes pass through the heat pipes respectively. The holes are arranged in the accommodating grooves, and the semiconductor thermopile is arranged between the two rows of thermally conductive blocks. 2 . The window-type fresh air unit with heat recovery according to claim 1 , wherein an air filter is provided between the fresh air outlet and the heat pipe and inside between the return air outlet and the heat pipe. 3 . 3 . The window type fresh air unit with heat recovery according to claim 2 , wherein the air filter is a polyester fiber filter. 4 . 4. The window type fresh air unit with heat recovery according to claim 2, wherein the heat pipes are arranged and distributed along the airflow direction, and the two sides of the heat pipes are also provided with baffles at intervals, and the baffles are installed on the air flow direction. On the inner side of the casing, a plurality of grooves are respectively arranged on the inner sides of the two guide plates opposite to each other, and the heat pipes are arranged between the opposite grooves. 5 . The window-type fresh air unit with heat recovery according to claim 4 , wherein the grooves are arc-shaped, and each groove is arranged concentrically with the center of the heat pipe opposite to it. 6 . 6. The window type fresh air unit with heat recovery according to claim 1, wherein the fresh air fan and the return air fan are both cross-flow fans, and the fresh air fan is arranged between the heat pipe and the air supply port, and the The return fan is arranged between the heat pipe and the air outlet. 7 . The window type fresh air unit with heat recovery according to claim 4 , wherein the outer shell comprises a shell seat and a front panel detachably connected to the front side of the shell seat, and the fresh air outlet and the air outlet are both 7. 7 . It is arranged on the rear side of the housing base, and the air supply and return air outlets are both arranged on the front panel. 8. The window-type fresh air unit with heat recovery according to claim 7, wherein the fresh air outlet and the air outlet are both arranged at the lower part of the rear side of the housing, and the air supply outlet and the air return outlet are arranged at On the upper part of the front panel, the air filter, heat pipe and fresh fan in the fresh air channel are arranged in order from bottom to top; the air filter, heat pipe and return fan in the return air channel are arranged in order from top to bottom. 9 . The window-type fresh air unit with heat recovery according to claim 7 , wherein the heat-conducting block is an aluminum block. 10 . 10 . The window-type fresh air unit with heat recovery according to claim 1 , wherein the through holes on the two mounting plates are arranged in non-identical planes, so that the inner ends of the two groups of heat pipes are arranged in a staggered manner. 11 .

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