CN220472393U - Waste heat recovery heat exchanger - Google Patents

Abstract

The utility model relates to the technical field of heat exchangers and discloses a waste heat recovery heat exchanger which comprises a shell, wherein an air inlet collecting pipe and an air outlet collecting pipe are respectively and fixedly arranged on the left inner wall and the right inner wall of the shell, flat pipes are connected between the air inlet collecting pipe and the air outlet collecting pipe at equal intervals, fins are arranged on the surfaces of the flat pipes, fixing feet are fixedly connected to the lower end of the shell, an air inlet pipe is fixedly connected to the lower end of the air inlet collecting pipe, an air outlet pipe is fixedly connected to the upper end of the air outlet collecting pipe, a fan is arranged at the top of the shell, and the input end of the fan and the interior of the shell are mutually communicated. Through setting up the casing, the pressure manifold that admits air, the pressure manifold that gives vent to anger, flat pipe and fin are located the outside of casing, can block the heat of fin absorption, avoid the too much diffusion of heat to the external environment in, reduce thermal waste to adopt the fan to utilize the hot air extraction in the casing is inside, improve thermal utilization ratio.

Description

Waste heat recovery heat exchanger

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a waste heat recovery heat exchanger.

Background

The heat exchanger is a device for transferring heat from a heat medium to a cold medium, the fin type heat exchanger is the most widely used heat exchanger in gas and liquid heat exchangers, the fin type heat exchanger mainly enhances heat transfer through fins, the heat medium adopted by the fin type heat exchanger can be steam or hot water, the heat medium is introduced into a collecting pipe of the heat exchanger, and after passing through a flat pipe, the fins absorb heat, so that heat in the heat medium is taken away, and the effect of reducing the temperature of the heat medium is achieved. However, after the fins of the existing heat exchanger absorb heat, part of the heat is directly diffused into the environment, so that heat loss cannot be utilized, and the heat utilization rate of the heat exchanger is not high.

Accordingly, a person skilled in the art provides a heat recovery heat exchanger to solve the problems set forth in the background art above.

Disclosure of Invention

The present utility model is directed to a heat recovery heat exchanger, which solves the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a waste heat recovery heat exchanger, includes the casing, the inner wall is fixed mounting respectively has the pressure manifold that admits air and gives vent to anger about the casing, the pressure manifold that admits air with the equidistance is connected with flat pipe between the pressure manifold that gives vent to anger, just the pressure manifold that admits air flat pipe with the inside intercommunication each other of pressure manifold that gives vent to anger, the surface mounting of flat pipe has the fin, the lower extreme fixedly connected with of casing is fixed foot, be connected with the connecting rod between the fixed foot, the lower extreme fixedly connected with intake pipe of pressure manifold that admits air, the upper end fixedly connected with outlet duct of pressure manifold that gives vent to anger, the fan is installed at the top of casing, just the input of fan with the inside intercommunication each other of casing.

As still further aspects of the utility model: the lower extreme rigid coupling of casing has the filter, just the filter is located all flat tub of downside.

As still further aspects of the utility model: the surface of fin has seted up flat tub of mounting groove, just flat tub of card is located the inside of flat tub of mounting groove, the upper and lower lateral wall of flat tub of mounting groove all is equipped with expansion portion, just expansion portion weld in the surface of flat tub.

As still further aspects of the utility model: the extending direction of each expansion part is the same.

As still further aspects of the utility model: and one end of each expansion part, which is far away from the flat tube mounting groove, is provided with a curled edge.

Compared with the prior art, the utility model has the beneficial effects that:

through setting up the casing, the pressure manifold that admits air, give vent to anger, flat pipe and fin are located the outside of casing, can block the heat of fin absorption, avoid the too much diffusion of heat to the external environment in, reduce thermal waste, and adopt the fan to utilize the hot air extraction in with the casing is inside, improve thermal utilization ratio, through setting up the expansion portion, set up the expansion portion and can increase the contact surface between fin and the flat pipe, be convenient for better with heat follow flat pipe to fin transfer, set up the turn-up at the tip of expansion portion, can utilize the turn-up of expansion portion tip to support the surface of leaning on preceding fin, be convenient for control the distance between the fin, avoid the fin distance too and then influence thermal diffusion.

Drawings

FIG. 1 is a schematic diagram of a heat recovery heat exchanger;

FIG. 2 is a schematic view of a flat tube and fin installation in a heat recovery heat exchanger;

fig. 3 is a front view of flat tubes and fins in a heat recovery heat exchanger.

In the figure: 1. a housing; 2. a fixed foot; 3. a connecting rod; 4. a filter plate; 5. an air inlet pipe; 6. an air outlet pipe; 7. an air inlet collecting pipe; 8. a gas outlet collecting pipe; 9. a flat tube; 10. a fin; 11. an expansion section; 12. a blower; 13. a flat tube mounting groove; 14. and (5) crimping.

Detailed Description

Referring to fig. 1 to 3, in an embodiment of the present utility model, a heat recovery heat exchanger includes a housing 1, an air inlet collecting pipe 7 and an air outlet collecting pipe 8 are fixedly installed on left and right inner walls of the housing 1, flat pipes 9 are equidistantly connected between the air inlet collecting pipe 7 and the air outlet collecting pipe 8, the interiors of the air inlet collecting pipe 7, the flat pipes 9 and the air outlet collecting pipe 8 are mutually communicated, fins 10 are installed on surfaces of the flat pipes 9, a fixing foot 2 is fixedly connected to a lower end of the housing 1, a connecting rod 3 is connected between the fixing feet 2, an air inlet pipe 5 is fixedly connected to a lower end of the air inlet collecting pipe 7, an air outlet pipe 6 is fixedly connected to an upper end of the air outlet collecting pipe 8, a fan 12 is installed at a top of the housing 1, an input end of the fan 12 is mutually communicated with an interior of the housing 1, and the housing 1 is arranged outside of the air inlet collecting pipe 7, the air outlet collecting pipe 8, the flat pipes 9 and the fins 10 are arranged, excessive heat absorbed by the fins 10 can be prevented from diffusing into an external environment, waste of heat is reduced, and hot air in the interior of the housing 1 is extracted and utilized by the fan 12, and the heat utilization rate is improved.

Preferably, the lower extreme rigid coupling of casing 1 has filter 4, and filter 4 is located the flat pipe 9 downside that has, sets up the filter and can filter dust and water in the external environment, avoids dust and water to enter into the inside of casing 1, is absorbed away by fan 12, when the inside hot gas of extraction casing 1 is opened to fan 12 simultaneously, can guarantee the inside pressure balance of casing 1.

Preferably, flat tube mounting groove 13 has been seted up on the surface of fin 10, and flat tube 9 card locates the inside of flat tube mounting groove 13, and the upper and lower lateral wall of flat tube mounting groove 13 all is equipped with expansion portion 11, and expansion portion 11 welds in the surface of flat tube 9, sets up expansion portion 11 and can increase the contact surface between fin 10 and the flat tube 9, is convenient for better with the heat transfer from flat tube to fin.

Preferably, the extending directions of each expansion part 11 are the same, and the end of each expansion part 11 far away from the flat tube mounting groove 13 is provided with a curled edge 14, so that when the fins 10 are mounted, the curled edges 14 at the ends of the expansion parts 11 can be abutted against the surface of the previous fins 10, thereby being convenient for controlling the distance between the fins 10 and avoiding the influence on the heat diffusion caused by too close distance between the fins 10.

The working principle of the utility model is as follows: after hot gas is introduced into the air inlet pipe 5 of the heat exchanger, the hot gas enters the air inlet collecting pipe 7, enters the air outlet collecting pipe 8 through the flat pipe 9 and is finally discharged from the air outlet pipe 6, and as the surface of the flat pipe 9 is provided with the fins 10, the contact area between the expansion part 11 and the surface of the flat pipe 9 can be increased, heat can be better transferred, meanwhile, the air inlet collecting pipe 7, the air outlet collecting pipe 8, the flat pipe 9 and the fins 10 are positioned in the shell 1, heat is prevented from being diffused into the external environment, the heat on the surface of the fins 10 can be absorbed by the fan 12 for reasonable use, the lower end of the shell 1 adopts the filter plate 4, the air pressure balance in the shell 1 can be ensured, water and dust particles in the external environment can be filtered, and the fan 12 is prevented from containing water and dust particles in the extracted hot gas.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (5)

1. Waste heat recovery heat exchanger, including casing (1), its characterized in that: the utility model discloses a novel air conditioner, including casing (1), inlet manifold (7), outlet manifold (8), flat pipe (9) are connected with to the inner wall about casing (1) respectively fixed mounting, inlet manifold (7) with equidistance between outlet manifold (8), just inlet manifold (7) flat pipe (9) with the inside intercommunication of outlet manifold (8) each other, the surface mounting of flat pipe (9) has fin (10), the lower extreme rigid coupling of casing (1) has fixed foot (2), be connected with connecting rod (3) between fixed foot (2), the lower extreme rigid coupling of inlet manifold (7) has intake pipe (5), the upper end rigid coupling of outlet manifold (8) has outlet duct (6), fan (12) are installed at the top of casing (1), just the input of fan (12) with the inside intercommunication each other of casing (1).

2. A heat recovery heat exchanger according to claim 1, wherein: the lower extreme rigid coupling of casing (1) has filter (4), just filter (4) are located all flat tub of (9) downside.

3. A heat recovery heat exchanger according to claim 1, wherein: flat pipe mounting groove (13) have been seted up on the surface of fin (10), just flat pipe (9) card is located the inside of flat pipe mounting groove (13), the upper and lower lateral wall of flat pipe mounting groove (13) all is equipped with expansion portion (11), just expansion portion (11) weld in the surface of flat pipe (9).

4. A heat recovery heat exchanger according to claim 3, wherein: the extension direction of each expansion part (11) is the same.

5. A heat recovery heat exchanger according to claim 4, wherein: one end of each expansion part (11) far away from the flat tube mounting groove (13) is provided with a curled edge (14).