Efficient heat energy recovery heat exchanger with components easy to replace

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly relates to an efficient heat energy recovery heat exchanger with components easy to replace, which comprises an outer shell, a fresh air inlet and a hot air outlet are respectively arranged on two sides of the outer shell, a smoke inlet chamber is arranged at the top of the outer shell, a smoke inlet is arranged on the smoke inlet chamber, and a smoke outlet is arranged on the smoke inlet chamber. A smoke outlet chamber is arranged at the bottom of the outer shell, a smoke outlet is formed in one side of the smoke outlet chamber, a heat exchange chamber is arranged in the outer shell and located between the smoke inlet chamber and the smoke outlet chamber, and the fresh air inlet and the hot air outlet are both communicated with the heat exchange chamber. The plurality of vertically distributed heat exchange pipes are arranged in the heat exchange chamber of the heat exchanger, the two ends of each heat exchange pipe are connected between the smoke inlet chamber and the smoke outlet chamber in a matched mode, and the heat exchange pipes are thin-wall corrugated pipes or thin-wall spiral pipes, so that the flowing state of gas inside and outside the pipes can be improved, and then the heat recovery efficiency is improved; the problem of low heat recovery rate of the device at the present stage is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat energy recovery heat exchanger with high efficiency and easy replacement of components. Background Art

[0002] A lot of flue gas is generated in industrial production. These flue gases contain a lot of heat. Directly removing them will cause energy waste. It is necessary to absorb heat through a gas-to-gas heat recovery heat exchanger to heat the fresh gas and achieve the purpose of energy saving.

[0003] The existing gas-to-gas heat recovery heat exchanger has a complex structure and the walls of the heat transfer pipes are thick, which leads to poor gas circulation. Therefore, the heat exchange efficiency is low and the heat recovery rate is not high. There are disadvantages such as incomplete heat exchange and difficult replacement of heat exchange tubes. For some places where heat recovery is required, but the gas heat exchange process is prone to produce gas-solid-liquid condensates, the entire tube needs to be replaced after a period of use. The construction workload is large, and the construction difficulty increases after the equipment is fixed, which incurs large costs for maintenance and replacement for the user. Therefore, the technology needs to be improved at this stage. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a heat recovery heat exchanger with high efficiency and easy replacement of components. A plurality of vertically distributed heat exchange tubes are arranged in the heat exchange chamber of the heat exchanger. The two ends of the heat exchange tubes are cooperatively connected between the smoke inlet chamber and the smoke outlet chamber. The heat exchange tubes are thin-walled corrugated tubes or thin-walled spiral tubes, which can improve the flow state of the gas inside and outside the tube, thereby improving the heat recovery efficiency, and solving the problem of low heat recovery rate of the current device.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A heat energy recovery heat exchanger with high efficiency and easy replacement of components comprises an outer shell, two sides of the outer shell are respectively provided with a fresh air inlet and a hot air outlet, a smoke inlet chamber is provided on the top of the outer shell, a smoke inlet is provided on the smoke inlet chamber, a smoke outlet is provided on the bottom of the outer shell, a smoke outlet is provided on one side of the smoke outlet, a heat exchange chamber is provided in the outer shell between the smoke inlet chamber and the smoke outlet chamber, the fresh air inlet and the hot air outlet are both connected to the heat exchange chamber, and a plurality of heat exchange tubes distributed vertically are installed in the heat exchange chamber of the outer shell, two ends of the heat exchange tubes are respectively provided with a connector 1 and a connector 2, and the heat exchange tubes are respectively screwed to the smoke inlet chamber and the smoke outlet chamber through the connector 1 and the connector 2.

[0009] Furthermore, the heat exchange tube is a thin-walled corrugated tube.

[0010] Furthermore, the heat exchange tube is a thin-walled spiral tube.

[0011] Furthermore, flanges are fixedly connected to the fresh air inlet, hot air outlet, smoke inlet and smoke outlet of the outer shell.

[0012] Furthermore, a front door is installed on one side of the outer shell, and a rear door is installed on the other side of the outer shell, and handles are fixedly connected to the front door and the rear door.

[0013] Furthermore, a bottom door panel is installed on one side of the outer shell located in the smoke outlet chamber, and a supporting leg is fixedly connected to the lower surface of the outer shell.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a heat recovery heat exchanger with high efficiency and easy replacement of components, which has the following beneficial effects:

[0016] 1. The utility model installs a plurality of heat exchange tubes in the heat exchange chamber of the outer shell, and the heat exchange tubes are connected between the smoke inlet chamber and the smoke outlet chamber through connectors 1 and 2 arranged at both ends of the heat exchange tubes, and the smoke flows through the heat exchange tubes. The heat exchange tubes in the utility model are reasonably arranged, and the heat exchange tubes are thin-walled corrugated tubes or thin-walled spiral tubes, which can improve the flow state of the gas inside and outside the tubes. During the flow of smoke, the gas can be promoted to a turbulent state, so that the gas can contact the heat exchange tubes more effectively, thereby increasing the heat exchange efficiency and the heat energy recovery rate, and improving the heat exchange efficiency.

[0017] 2. The utility model can quickly disassemble and clean or replace the heat exchange tubes by assembling them detachably between the smoke inlet chamber and the smoke outlet chamber, thereby avoiding the need to replace the entire heat recovery device due to solid and liquid deposition. At the same time, the frame of the original equipment can be retained. The heat exchange assembly is small in size and light in weight, and the equipment and space required for disassembling the heat exchange tubes are small. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the utility model;

[0019] Figure 2 It is a right side view of the utility model;

[0020] Figure 3 It is a left view of the utility model;

[0021] Figure 4 It is a rear view of the utility model;

[0022] Figure 5 It is a top view of the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the heat exchange tube in the utility model.

[0024] In the figure: 1. outer shell; 2. front door; 3. handle; 4. fresh air inlet; 5. bottom door panel; 6. supporting legs; 7. hot air outlet; 8. flange; 9. smoke inlet; 10. smoke inlet chamber; 11. heat exchange chamber; 12. heat exchange tube; 13. smoke outlet; 14. smoke outlet chamber; 15. rear door; 16. connector 1; 17. connector 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, an embodiment of the utility model proposes a heat energy recovery heat exchanger with high efficiency and easy replacement of components, including an outer shell 1, two sides of the outer shell 1 are respectively provided with fresh air inlet 4 and hot air outlet 7, a smoke inlet chamber 10 is arranged on the top of the outer shell 1, a smoke inlet 9 is arranged on the smoke inlet chamber 10, a smoke outlet 14 is arranged at the bottom of the outer shell 1, and a smoke outlet 13 is arranged on one side of the smoke outlet 14, a heat exchange chamber 11 is arranged between the smoke inlet chamber 10 and the smoke outlet chamber 14 in the outer shell 1, the fresh air inlet 4 and the hot air outlet 7 are both connected to the heat exchange chamber 11, and a plurality of heat exchange tubes 12 distributed vertically are installed at the heat exchange chamber 11 of the outer shell 1, and two ends of the heat exchange tube 12 are respectively provided with a connector 16 and a connector 2 17, and the heat exchange tube 12 is screwed to the smoke inlet chamber 10 and the smoke outlet chamber 14 through the connector 1 16 and the connector 2 17 respectively.

[0028] It should be noted that the outer shell 1 is the external protective part of the heat exchanger. The external gas can enter the outer shell 1 through the fresh air inlet 4 and be discharged through the hot air outlet 7 after being heated. By correspondingly arranging the smoke inlet chamber 10 and the smoke outlet chamber 14 at the top and bottom of the outer shell 1, the smoke can enter the heat exchange chamber 11 through the smoke inlet 9 on one side of the smoke inlet chamber 10, then enter the smoke outlet 14, and finally be discharged through the smoke outlet 13. By arranging a plurality of heat exchange tubes 12 at the heat exchange chamber 11, the smoke is transmitted in the heat exchange tubes 12 of the heat exchange chamber 11, and the gas in the heat exchange chamber 11 is heated by the heat exchange tubes 12 to achieve the purpose of recovering the waste heat of the smoke. By respectively arranging connector 16 and connector 2 17 at the two ends of the heat exchange tube 12, the heat exchange tube 12 can be detachably assembled between the smoke inlet chamber 10 and the smoke outlet chamber 14. When the heat exchange tube 12 needs to be replaced or repaired, it can be removed, which is relatively convenient.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments, the heat exchange tube 12 is a thin-walled corrugated tube.

[0030] It should be noted that the thickness of the thin-walled bellows can reach 0.08mm-0.15mm. The thin-walled bellows is corrugated. When flue gas is passed into the inside of the thin-walled bellows, turbulence can be formed, and then fluctuations occur, so that the thin-walled bellows frequently and quickly contact the gas, increasing the heat conduction efficiency, and allowing the heat flow in the heat exchange tube 12 to be quickly conducted out, thereby improving the heat recovery rate of the flue gas.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, flanges 8 are fixedly connected to the fresh air inlet 4 , the hot air outlet 7 , the smoke inlet 9 and the smoke outlet 13 of the outer shell 1 .

[0032] It should be noted that the provision of the flange 8 can facilitate the connection of external pipelines and the transmission of flue gas and gas.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, a front door 2 is installed on one side of the outer shell 1, and a rear door 15 is installed on the other side of the outer shell 1, and a handle 3 is fixedly connected to both the front door 2 and the rear door 15.

[0034] It should be noted that by respectively arranging the front door 2 and the rear door 15 on both sides of the heat exchange chamber 11 of the outer shell 1 , the front door 2 and the rear door 15 can be opened, thereby facilitating the inspection and replacement of the heat exchange tubes 12 .

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, a bottom door panel 5 is installed on one side of the outer shell 1 located at the smoke outlet chamber 14 , and a supporting leg 6 is fixedly connected to the lower surface of the outer shell 1 .

[0036] It should be noted that the arrangement of the bottom door panel 5 can facilitate the inspection and maintenance of the components at the smoke outlet chamber 14, and the support legs 6 can achieve the supporting function of the entire device.

[0037] Embodiment 2

[0038] like Figure 1 , Figure 2 , Figure 3 As shown, different from the first embodiment, the heat exchange tube 12 is a thin-walled spiral tube, which is spiral-shaped and has a tube wall thickness of 0.08mm-0.15mm, which can reduce the resistance of heat conduction, and when flue gas is introduced into the interior of the thin-walled spiral tube, gas turbulence can be more easily formed, and then the heat exchange tube 12 fluctuates, so that the gas can contact the heat exchange tube 12 more effectively and quickly, thereby increasing the thermal conductivity of the flue gas, quickly performing heat exchange processing, and increasing the heat recovery rate.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat recovery heat exchanger with high efficiency and easy replacement of components, comprising an outer shell (1), characterized in that: Fresh air inlets (4) and hot air outlets (7) are respectively arranged on both sides of the outer shell (1); a smoke inlet chamber (10) is arranged on the top of the outer shell (1); a smoke inlet chamber (9) is arranged on the smoke inlet chamber (10); a smoke outlet chamber (14) is arranged on the bottom of the outer shell (1); a smoke outlet (13) is arranged on one side of the smoke outlet chamber (14); a heat exchange chamber (14) is arranged between the smoke inlet chamber (10) and the smoke outlet chamber (14) in the outer shell (1). 11), the fresh air inlet (4) and the hot air outlet (7) are both connected to the heat exchange chamber (11), and a plurality of vertically distributed heat exchange tubes (12) are installed in the heat exchange chamber (11) of the outer shell (1), and the two ends of the heat exchange tubes (12) are respectively provided with a connector 1 (16) and a connector 2 (17), and the heat exchange tubes (12) are respectively screwed to the smoke inlet chamber (10) and the smoke outlet chamber (14) through the connector 1 (16) and the connector 2 (17).

2. A heat recovery heat exchanger with high efficiency and easy replacement of components according to claim 1, characterized in that: The heat exchange tube (12) is a thin-walled corrugated tube.

3. The heat recovery heat exchanger with high efficiency and easy replacement of components according to claim 1 is characterized in that: The heat exchange tube (12) is a thin-walled spiral tube.

4. The heat recovery heat exchanger with high efficiency and easy replacement of components according to claim 1 is characterized by: Flanges (8) are fixedly connected to the fresh air inlet (4), hot air outlet (7), smoke inlet (9) and smoke outlet (13) of the outer shell (1).

5. The heat recovery heat exchanger with high efficiency and easy replacement of components according to claim 1, characterized in that: A front door (2) is installed on one side of the outer shell (1), and a rear door (15) is installed on the other side of the outer shell (1); handles (3) are fixedly connected to the front door (2) and the rear door (15).

6. The heat recovery heat exchanger with high efficiency and easy replacement of components according to claim 1, characterized in that: A bottom door panel (5) is installed on one side of the outer shell (1) located in the smoke outlet chamber (14), and a supporting leg (6) is fixedly connected to the lower surface of the outer shell (1).

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