Air source heat pump heating system adopting multi-flat-hole aluminum channel

Abstract

The utility model provides an air source heat pump heating system adopting a multi-flat-hole aluminum channel, which comprises an air source evaporator, a condenser, a circulation loop, a heating loop and a heating fan, and the air source evaporator is connected with the condenser through the circulation loop; wherein the air source evaporator comprises a plurality of fins and multi-flat-hole aluminum channel sets, the fins are arranged on the surfaces of the multi-flat-hole aluminum channel sets, and the two ends of each multi-flat-hole aluminum channel set are connected with the circulation loop and used for collecting heat in air; the circulation loop comprises a compressor used for conducting heat collected by the air source evaporator to the condenser. The heating fan is connected with the condenser through a heating loop and is used for heating by taking heat of the condenser as a heat source; when air passes through the air source evaporator, the air exchanges heat with the fins and the flat porous aluminum channel sets, the heat exchange area is greatly increased, heat resistance is reduced, and therefore the heat performance of components is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air source heat pump heating, in particular to an air source heat pump heating system adopting a multi-flat hole aluminum channel. Background Art

[0002] As an energy-saving device that uses high-level energy to make heat flow from low-level energy heat source air to high-level heat source, air source heat pump has been widely used in green heating projects; however, in the air source heat pump system, the loss of the evaporator accounts for a large proportion, and its performance will directly affect the efficiency of the entire system; currently, the air source evaporator of the air source heat pump system is mainly of tube-fin type. The disadvantage of this structure is that its heat exchange area is small and the thermal resistance is high, resulting in poor overall heat exchange efficiency. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides an air source heat pump heating system using a multi-flat hole aluminum channel, which solves the above-mentioned problems existing in the prior art.

[0004] According to an embodiment of the utility model, an air source heat pump heating system using a multi-flat hole aluminum channel includes:

[0005] An air source evaporator, a condenser, a circulation loop, a heating loop and a heating fan, wherein the air source evaporator is connected to the condenser through the circulation loop; wherein the air source evaporator comprises a plurality of fins and a multi-flat hole aluminum channel group, wherein the fins are arranged on the surface of the multi-flat hole aluminum channel group, and both ends of the plurality of multi-flat hole aluminum channel groups are connected to the circulation loop for collecting heat in the air;

[0006] The circulation loop includes a compressor for transferring heat collected by the air source evaporator to the condenser;

[0007] The heating fan is connected to the condenser through a heating circuit and is used to use the heat of the condenser as a heat source for heating.

[0008] Preferably, the air source evaporator further comprises: an insulation box, a fan, a first connecting pipe and a second connecting pipe, the fan is arranged on the side wall of the insulation box, and the first connecting pipe, the second connecting pipe and a plurality of multi-flat hole aluminum channel groups are all arranged in the insulation box;

[0009] The liquid inlets of the plurality of multi-flat hole aluminum channel groups are connected to one end of the first connecting tube, the liquid outlets of the plurality of multi-flat hole aluminum channel groups are connected to one end of the second connecting tube, and the other end of the first connecting tube and the other end of the second connecting tube are connected to the circulation loop.

[0010] Preferably, the multi-flat hole aluminum channel group includes: an upper transverse tube, a lower transverse tube, a thin tube and a multi-flat hole aluminum channel, several multi-flat hole aluminum channels are arranged side by side in parallel, both ends of the multi-flat hole aluminum channels are respectively connected to the upper transverse tube and the lower transverse tube through the thin tube, the upper transverse tube and the lower transverse tube are arranged in parallel, the upper transverse tube is connected to the first connecting tube, and the lower transverse tube is connected to the second connecting tube.

[0011] Preferably, one end of the upper transverse tube and the lower transverse tube are both closed.

[0012] Preferably, the multi-flat hole aluminum channel comprises: a tube body, through holes and micro grooves, a plurality of through holes are arranged side by side in the tube body, the cross section of the tube body is flat, the cross section of the through holes is rectangular, and the micro grooves are arranged on the inner wall of the through holes; fins are arranged on both sides of the multi-flat hole aluminum channel.

[0013] Preferably, the shapes of the plurality of fins are all U-shaped, both ends of the fins are connected to the outer wall of the multi-flat hole aluminum channel, and the plurality of U-shaped plates are arranged in a stepped manner.

[0014] Preferably, the circulation loop further comprises: a first stop valve, a throttle valve and a circulation heat exchange pipe, and the circulation heat exchange pipe is arranged in the condenser;

[0015] One end of the circulating heat exchange pipe, the compressor, the first stop valve, the air source evaporator, the throttle valve and the other end of the circulating heat exchange pipe are connected in series in sequence through a water pipe.

[0016] Preferably, the heating circuit includes: a second stop valve and a heating heat exchange pipe, the heating heat exchange pipe is arranged in the condenser, one end of the heating heat exchange pipe, the second stop valve, the fan coil of the heating fan and the other end of the heating heat exchange pipe are connected in series through a water pipe.

[0017] Preferably, the thermal insulation box is in the shape of a cuboid, and a plurality of air holes are present on a side of the thermal insulation box opposite to the fan.

[0018] Preferably, a plurality of multi-flat hole aluminum channel groups are arranged in parallel, and the multi-flat hole aluminum channel groups are perpendicular to the side of the insulation box where the fan is located.

[0019] Compared with the prior art, the utility model has the following beneficial effects: when air passes through the air source evaporator, the air exchanges heat with a number of fins and a flat porous aluminum channel group, which greatly increases the heat exchange area and reduces thermal resistance, thereby effectively improving the thermal performance of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the principle of an embodiment of the utility model;

[0021] Figure 2 This is a schematic structural diagram of an air source evaporator according to another embodiment of the utility model;

[0022] Figure 3This is a schematic structural diagram of a multi-flat hole aluminum channel according to another embodiment of the utility model;

[0023] Figure 4 It is a cross-sectional schematic diagram of a multi-flat hole aluminum channel of another embodiment of the utility model;

[0024] Figure 5 It is a partial schematic diagram of a multi-flat hole aluminum channel group according to another embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of a fin according to another embodiment of the utility model. DETAILED DESCRIPTION

[0026] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figures 1 to 6 As shown, the embodiment of the utility model proposes an air source heat pump heating system using a multi-flat hole aluminum channel, comprising: an air source evaporator 1, a condenser 4, a circulation loop, a heating loop and a heating fan 5, wherein the air source evaporator 1 is connected to the condenser through the circulation loop; wherein the air source evaporator 1 comprises a plurality of fins 8 and a multi-flat hole aluminum channel group, wherein the fins 8 are arranged on the surface of the multi-flat hole aluminum channel group, and both ends of the plurality of multi-flat hole aluminum channel groups are connected to the circulation loop for collecting heat in the air;

[0028] The circulation loop includes a compressor 2 for transferring the heat collected by the air source evaporator 1 to the condenser 4;

[0029] The heating fan 5 is connected to the condenser 4 through a heating circuit, and is used to use the heat of the condenser 4 as a heat source for heating;

[0030] The working principle of the above technical solution is as follows: in actual use, when air flows through the air source evaporator 1, the air exchanges heat with the refrigerant in the multi-flat hole aluminum channel group through the fins 8, so that the multi-flat hole aluminum channel group collects heat, and then passes through the circulation loop, and conducts the heat to the condenser 4 under the action of the compressor 2, and then the heating loop uses the heat of the condenser 4 as a heat source for heating through the heating fan 5; wherein, the circulation loop, the heating loop and the condenser 4 are all provided with refrigerant; the refrigerant in the condenser 4 is preferably water;

[0031] The beneficial effects of the above technical solution are as follows: when air passes through the air source evaporator 1, the air exchanges heat with a plurality of fins and a flat porous aluminum channel group, which greatly increases the heat exchange area and reduces the thermal resistance, thereby effectively improving the thermal performance of the component.

[0032] In one embodiment, the air source evaporator 1 further includes: an insulated box 10, a fan 13, a first connecting pipe 12 and a second connecting pipe 11, the fan 13 is arranged on the side wall of the insulated box 10, and the first connecting pipe 13, the second connecting pipe 11 and a plurality of multi-flat hole aluminum channel groups are all arranged in the insulated box 10;

[0033] The liquid inlets of the plurality of multi-flat hole aluminum channel groups are connected to one end of the first connecting tube 12, the liquid outlets of the plurality of multi-flat hole aluminum channel groups are connected to one end of the second connecting tube 11, and the other end of the first connecting tube 12 and the other end of the second connecting tube 11 are connected to the circulation loop;

[0034] The multi-flat hole aluminum channel group includes: an upper transverse tube 18, a lower transverse tube 17, a thin tube 21 and a multi-flat hole aluminum channel 14, a plurality of multi-flat hole aluminum channels 14 are arranged in parallel, both ends of the multi-flat hole aluminum channels 14 are connected to the upper transverse tube 18 and the lower transverse tube 17 respectively through the thin tube 21, the upper transverse tube 18 and the lower transverse tube 17 are arranged in parallel, the upper transverse tube 18 is connected to the first connecting tube 12, and the lower transverse tube 17 is connected to the second connecting tube 11;

[0035] One end of the upper transverse tube 18 and the lower transverse tube 17 are both closed;

[0036] The multi-flat hole aluminum channel 14 includes: a tube body 24, a through hole 20 and a micro groove 19. A plurality of through holes 20 are arranged side by side in the tube body 24. The cross section of the tube body 24 is flat, and the cross section of the through hole 20 is rectangular. The micro groove 19 is arranged on the inner wall of the through hole 20.

[0037] Fins 8 are provided on both sides of the multi-flat hole aluminum channel 14;

[0038] The shapes of the plurality of fins 8 are all U-shaped, both ends of the fins 8 are connected to the outer wall of the multi-flat hole aluminum channel 14, and the plurality of U-shaped plates 22 are arranged in a stepped manner;

[0039] The working principle and beneficial effects of the above technical solution are as follows: in actual use, the refrigerant enters the first connecting pipe 12 through the circulation loop, and then disperses into a plurality of upper transverse pipes 18, and then sequentially disperses into a plurality of through holes 20 through the capillary tubes 21, and absorbs heat in the through holes 20 through the fins 8 and the multi-flat aluminum channels 14, and after absorbing the heat, it is gathered into the lower transverse pipe 17 through the capillary tubes 21, and then gathered into the second connecting pipe 11 through a plurality of lower transverse pipes 17 and enters the circulation loop; during the circulation process, the fan 13 drives the air into the heat preservation box 10 for heat exchange; Figure 6 As shown, the relative positions of two adjacent fins 8.

[0040] In one embodiment, the circulation loop further includes: a first stop valve 6, a throttle valve 3 and a circulation heat exchange pipe 15, and the circulation heat exchange pipe 15 is arranged in the condenser 4;

[0041] One end of the circulating heat exchange pipe 15, the compressor 2, the first stop valve 6, the air source evaporator 1, the throttle valve and the other end of the circulating heat exchange pipe 15 are sequentially connected in series through a water pipe;

[0042] The heating circuit includes: a second stop valve 7 and a heating heat exchange pipe 9, the heating heat exchange pipe 9 is arranged in the condenser 4, one end of the heating heat exchange pipe 9, the second stop valve 7, the fan coil of the heating fan 5 and the other end of the heating heat exchange pipe 9 are connected in series in sequence through a water pipe;

[0043] The working principle and beneficial effects of the above technical solution are as follows: when the heat pump system is running, the air source evaporator 1, the compressor 2, the throttle valve 3, the condenser 4, and the heating fan 5 are all in working state; when the heating fan 5 is working, a water pump is arranged in the heating fan 5 to drive the refrigerant to flow in the heating branch; and the first stop valve 6 and the second stop valve 7 are opened; in this working mode, the fan 13 at the inlet of the air source evaporator 1 sends an appropriate amount of outside air into the insulation box 10 of the air source evaporator 1 to provide an evaporation heat source for the heat pump system; when the fins 8 are disturbed by the external airflow, the air The heat in the air is exchanged with the refrigerant through the serrated fins 8 and the multi-flat hole aluminum channels 14 in turn. The refrigerant absorbs the heat and evaporates into superheated steam. It enters the compressor 2 through the circulation branch and is compressed into high-temperature and high-pressure superheated steam. It then enters the condenser 4 to condense and release heat, thereby increasing the water temperature in the condenser 4. Finally, heating is provided to the user through the fan coil of the heating fan 5 connected in series with the condenser 4. The refrigerant after releasing heat enters the throttle valve 3 for throttling and pressure reduction, and then enters the air source evaporator 1 to enter the next cycle. The circulating heat exchange tube 15 and the heating heat exchange tube 9 are both spiral pipes.

[0044] In one embodiment, the heat preservation box 10 is in the shape of a cuboid, and a plurality of air holes are present on the side of the heat preservation box 10 opposite to the fan 13;

[0045] The working principle and beneficial effects of the above technical solution are as follows: the air entering the heat preservation box 10 passes through the fins 8 and the multi-flat hole aluminum channel group, and then leaves the heat preservation box 10 from a plurality of air holes (not shown in the figure).

[0046] In one embodiment, a plurality of multi-flat hole aluminum channel groups are arranged in parallel, and the multi-flat hole aluminum channel groups are perpendicular to the side surface of the insulation box 10 where the fan 13 is located.

[0047] In one embodiment, the porous flat aluminum channel 14, fins 8, first connecting tube 12, second connecting tube 11, upper transverse tube 18, lower transverse tube 17 and capillary tube 21 included in the air source evaporator 1 are all made of aluminum alloy, which is not only low in cost but also relatively simple in manufacturing process, thus greatly facilitating production operations.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An air source heat pump heating system using a multi-flat hole aluminum channel, characterized in that: include: An air source evaporator (1), a condenser (4), a circulation loop, a heating loop and a heating fan (5), wherein the air source evaporator (1) is connected to the condenser via the circulation loop; wherein the air source evaporator (1) comprises a plurality of fins (8) and a multi-flat hole aluminum channel group, wherein the fins (8) are arranged on the surface of the multi-flat hole aluminum channel group, and both ends of the plurality of multi-flat hole aluminum channel groups are connected to the circulation loop for collecting heat in the air; The circulation loop includes a compressor (2) for transferring heat collected by the air source evaporator (1) to a condenser (4); The heating fan (5) is connected to the condenser (4) via a heating circuit and is used to use the heat of the condenser (4) as a heat source for heating.

2. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 1 is characterized in that: The air source evaporator (1) further comprises: an insulation box (10), a fan (13), a first connecting pipe (12) and a second connecting pipe (11), wherein the fan (13) is arranged on a side wall of the insulation box (10), and the first connecting pipe (12), the second connecting pipe (11) and a plurality of multi-flat hole aluminum channel groups are all arranged in the insulation box (10); The liquid inlets of the plurality of multi-flat hole aluminum channel groups are connected to one end of a first connecting tube (12), the liquid outlets of the plurality of multi-flat hole aluminum channel groups are connected to one end of a second connecting tube (11), and the other end of the first connecting tube (12) and the other end of the second connecting tube (11) are connected to a circulation loop.

3. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 1 is characterized in that: The multi-flat hole aluminum channel group comprises: an upper transverse tube (18), a lower transverse tube (17), a thin tube (21) and a multi-flat hole aluminum channel (14); a plurality of multi-flat hole aluminum channels (14) are arranged in parallel; both ends of the multi-flat hole aluminum channel (14) are respectively connected to the upper transverse tube (18) and the lower transverse tube (17) through the thin tube (21); the upper transverse tube (18) and the lower transverse tube (17) are arranged in parallel; the upper transverse tube (18) is connected to the first connecting tube (12), and the lower transverse tube (17) is connected to the second connecting tube (11); and fins (8) are provided on both sides of the multi-flat hole aluminum channel (14).

4. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 3 is characterized in that: One end of the upper transverse tube (18) and the lower transverse tube (17) are both closed.

5. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 3 is characterized in that: The multi-flat hole aluminum channel (14) comprises: a tube body (24), a through hole (20) and a micro groove (19). A plurality of through holes (20) are arranged side by side in the tube body (24). The cross section of the tube body (24) is flat, the cross section of the through hole (20) is rectangular, and the micro groove (19) is arranged on the inner wall of the through hole (20).

6. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 1 is characterized in that: The shapes of the plurality of fins (8) are all U-shaped, both ends of the fins (8) are connected to the outer wall of the multi-flat hole aluminum channel (14), and the plurality of U-shaped plates (22) are arranged in a stepped shape.

7. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 1 is characterized in that: The circulation loop further comprises: a first stop valve (6), a throttle valve (3) and a circulation heat exchange pipe (15), wherein the circulation heat exchange pipe (15) is arranged in the condenser (4); One end of the circulating heat exchange pipe (15), the compressor (2), the first stop valve (6), the air source evaporator (1), the throttle valve and the other end of the circulating heat exchange pipe (15) are sequentially connected in series via a water pipe.

8. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 1 is characterized in that: The heating circuit comprises: a second stop valve (7) and a heating heat exchange pipe (9); the heating heat exchange pipe (9) is arranged in the condenser (4); one end of the heating heat exchange pipe (9), the second stop valve (7), the fan coil of the heating fan (5) and the other end of the heating heat exchange pipe (9) are connected in series in sequence through a water pipe.

9. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 1, characterized in that: The heat preservation box (10) is in the shape of a rectangular parallelepiped, and a plurality of air holes are provided on a side of the heat preservation box (10) opposite to the fan (13).

10. The air source heat pump heating system using a multi-flat hole aluminum channel according to claim 2, characterized in that: A plurality of multi-flat hole aluminum channel groups are arranged in parallel, and the multi-flat hole aluminum channel groups are perpendicular to the side surface of the heat preservation box (10) where the fan (13) is located.

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