Fast-assembly flue gas heat exchange device

Abstract

The utility model relates to a fast-assembly flue gas heat exchange device which comprises a shell, a plurality of heat exchange assemblies are arranged in the shell in a stacked mode, each heat exchange assembly comprises a support and a snake-shaped heat exchange coil pipe arranged on the support, and the heat exchange coil pipes of every two vertically adjacent heat exchange assemblies are communicated in series through elbows. An upper limiting connecting piece and a lower limiting connecting piece are arranged on the inner side wall of the shell, the multiple heat exchange assemblies are arranged between the upper limiting connecting piece and the lower limiting connecting piece in a stacked mode, a steam exhaust port is formed in one heat exchange assembly, and a water inlet is formed in the other heat exchange assembly. A plurality of heat exchange assemblies can be flexibly combined and can be quickly assembled. When the flue gas condensing device is assembled, only the required condensing heat exchange amount is determined, the number and the combination mode of the heat exchange assemblies are freely selected, and the production and use requirements can be met only by combining and splicing the heat exchange assemblies which are manufactured in advance and fixing the heat exchange assemblies in the shell through the upper limiting piece and the lower limiting piece.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas heat exchange devices, in particular to a quick-install flue gas heat exchange device. Background Art

[0002] The structure of the existing flue gas heat exchange device is composed of a metal tube, which is coiled multiple times. There are heat exchange fins on the surface of the metal tube, which need to be customized. It is not flexible and has high manufacturing cost. It cannot meet the needs of different heat exchange efficiency and has poor market applicability. Utility Model Content

[0003] The utility model aims to provide a quick-install flue gas heat exchange device which is flexible in production and can be freely assembled and controlled.

[0004] The purpose of the utility model is achieved in this way:

[0005] A quick-install flue gas heat exchange device comprises a shell, wherein a plurality of heat exchange components are stacked in the shell, the heat exchange components comprise a bracket and a snake-shaped heat exchange coil arranged on the bracket, the heat exchange coils of two upper and lower adjacent heat exchange components are connected in series through an elbow, an upper limit connector and a lower limit connector are arranged on the inner side wall of the shell, a plurality of heat exchange components are stacked between the upper limit connector and the lower limit connector, the uppermost layer of heat exchange components is connected to the upper limit connector, and the lowermost layer of heat exchange components is connected to the lower limit connector, one of the heat exchange components is provided with a steam outlet, and the other heat exchange component is provided with a water inlet. The plurality of heat exchange components of the utility model can be flexibly combined to achieve rapid assembly. When assembling the flue gas condensation device of the utility model, only the required condensation heat exchange amount is determined, and the number and combination of heat exchange components are freely selected. It is only necessary to combine and assemble the pre-fabricated heat exchange components and fix them in the shell through the upper and lower limit components to meet the production and use requirements.

[0006] The present invention can also be further improved as follows.

[0007] A smoke inlet is arranged at the top of the shell, and a smoke exhaust port is arranged at the bottom of the shell.

[0008] The steam exhaust port is connected with a steam exhaust pipe, and the water inlet is connected with a water inlet pipe.

[0009] The two upper and lower adjacent heat exchange components are connected by welding or screws, and the two ends of the heat exchange component are connected to the side wall of the shell by welding or screws.

[0010] The heat exchange coils of the heat exchange components of the upper layer are staggered with the heat exchange coils of the heat exchange components of the lower layer, and the high-temperature flue gas is continuously diverted by the heat exchange components. Therefore, the high-temperature flue gas can fully exchange heat with multiple heat exchange components.

[0011] The heat exchange coil is provided with heat exchange fins, and there is a gap between the heat exchange fins of two adjacent heat exchange straight tubes on the heat exchange coil. A gap blocking sheet is provided between the heat exchange fins of the two adjacent heat exchange straight tubes, and the gap blocking sheet covers the gap. The smoke heat exchange assembly of the utility model blocks the gap between the heat exchange fins of the two heat exchange straight tubes through the gap blocking sheet, thereby reducing the smoke flow channel, so that more high-temperature smoke can only flow through the heat exchange fins, and the smoke heat exchange flow rate is increased, so that more high-temperature smoke can exchange heat with the heat exchange fins, thereby improving the heat exchange efficiency.

[0012] The gap baffle is V-shaped, which can reduce the gap, increase the flue gas flow rate and enhance the heat exchange effect.

[0013] The gap blocking piece comprises two connected wing plates, and the two wing plates of the gap blocking piece are respectively attached to the heat exchange plates of two adjacent heat exchange straight tubes.

[0014] Drain openings are provided at both ends of the gap baffle. During the heat exchange process of the utility model, condensed water will appear on the heat exchange coil. The gap baffle can catch the condensed water and then guide it to the drainage openings at both ends for discharge. The condensed water will not drip onto the heat exchange coil below, thereby preventing the heat exchange coil from being corroded by water.

[0015] Two ends of the gap blocking piece are connected to the inner side wall of the shell.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model can flexibly combine multiple heat exchange components to achieve rapid assembly. When assembling the flue gas condensation device, the utility model only needs to determine the required condensation heat exchange amount, freely select the number and combination of heat exchange components, and only needs to assemble the pre-made heat exchange components and fix them in the shell through the upper and lower limit members to meet the production and use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model quick-install flue gas heat exchange device.

[0019] Figure 2 This is the front view of the first heat exchange component of the utility model. Figure 1 and Figure 2 The arrows in the figure indicate the direction of smoke flow).

[0020] Figure 3 It is a front view of the first heat exchange component of the utility model.

[0021] Figure 4 It is a front view of the second heat exchange component of the utility model.

[0022] Figure 5 It is a front view of the second heat exchange component of the utility model.

[0023] Figure 6 It is a front view of the third heat exchange component of the utility model.

[0024] Figure 7 It is a top view of the gap blocking piece of the utility model.

[0025] Figure 8 yes Figure 7 Cross-sectional view at AA in the middle. DETAILED DESCRIPTION

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

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Embodiment 1, as Figures 1 to 8 As shown, a quick-install flue gas heat exchange device comprises an outer shell 1, in which a plurality of flue gas heat exchange components 2 are stacked, the heat exchange coils 25 of two upper and lower adjacent flue gas heat exchange components 2 are connected in series through an elbow 8, an upper limit connector 3 and a lower limit connector 4 are provided on the inner side wall of the outer shell 1, a plurality of flue gas heat exchange components 2 are stacked between the upper limit connector 3 and the lower limit connector 4, the uppermost layer of flue gas heat exchange components 2 are connected to the upper limit connector 3, and the lowermost layer of flue gas heat exchange components 2 are connected to the lower limit connector 4, a smoke inlet 11 is provided at the top of the outer shell 1, a smoke exhaust port 12 is provided at the bottom of the outer shell 1, a steam exhaust port is provided on the uppermost layer of the flue gas heat exchange components 2, and a water inlet is provided on the lowermost layer of the flue gas heat exchange components 2.

[0029] The multiple flue gas heat exchange components 2 include multiple first flue gas heat exchange components 21, multiple second flue gas heat exchange components 22 and third flue gas heat exchange components 23. The multiple first flue gas heat exchange components 21 and the multiple second flue gas heat exchange components 22 are alternately stacked in the outer shell 1, and the third flue gas heat exchange component 23 is the bottom layer of flue gas heat exchange components.

[0030] As a more specific technical solution of the utility model.

[0031] The structures of the first flue gas heat exchange component 21, the second flue gas heat exchange component 22 and the third flue gas heat exchange component 23 are similar. The first flue gas heat exchange component 21, the second flue gas heat exchange component 22 and the third flue gas heat exchange component 23 all include a bracket 24 and a snake-shaped heat exchange coil 25 arranged on the bracket 24, and the heat exchange coil 25 is provided with a heat exchange plate 26.

[0032] The steam outlet is connected to a steam outlet pipe 5 , and the water inlet is connected to a water inlet pipe 6 .

[0033] Two upper and lower adjacent flue gas heat exchange components 2 are connected by welding or screws, and two ends of the flue gas heat exchange components 2 are connected to the side wall of the shell 1 by welding or screws.

[0034] The heat exchange coils 25 of the flue gas heat exchange assembly 2 of the upper layer are arranged in a staggered manner with the heat exchange coils 25 of the flue gas heat exchange assembly 2 of the lower layer.

[0035] There is a gap 27 between the heat exchange plates 26 of two adjacent heat exchange straight tubes on the heat exchange coil 25, and a gap blocking plate 7 is provided between the heat exchange plates 26 of the two adjacent heat exchange straight tubes. The gap blocking plate 7 covers the gap 27. The flue gas heat exchange component of the utility model blocks the gap between the heat exchange plates of the two heat exchange straight tubes through the gap blocking plate, so that more high-temperature flue gas can only flow through the heat exchange plates, thereby allowing more high-temperature flue gas to exchange heat with the heat exchange plates, thereby improving the heat exchange efficiency.

[0036] The gap blocking piece 7 is V-shaped and includes two connected wing plates 72. The two wing plates 72 of the gap blocking piece 7 are respectively attached to the heat exchange fins 26 of two adjacent heat exchange straight tubes.

[0037] Drain openings 71 are provided at both ends of the gap baffle 7. During the heat exchange process of the utility model, condensed water will appear on the heat exchange coil. The gap baffle can catch the condensed water and then guide it to the drainage openings at both ends for discharge. The condensed water will not drip onto the heat exchange coil below, thereby preventing the heat exchange coil from being corroded by water.

[0038] Two ends of the gap blocking piece 7 are connected to the inner side wall of the housing 1 .

[0039] The working principle of the utility model is:

[0040] Cold water enters the third flue gas heat exchange component from the water inlet pipe 6, and then flows upward to the second flue gas heat exchange component 22 and the first flue gas heat exchange component 21 in sequence. The high-temperature flue gas enters the shell from the smoke inlet at the top of the shell, and the high-temperature flue gas exchanges heat with the water in the first flue gas heat exchange component 21, the second flue gas heat exchange component 22 and the third flue gas heat exchange component 23 from top to bottom. The gap baffle blocks the gap between the heat exchange plates of the two heat exchange straight tubes, and more high-temperature flue gas can only flow through the heat exchange plates, so that more high-temperature flue gas exchanges heat with the heat exchange plates, thereby improving the heat exchange efficiency. The water in the flue gas heat exchange component 2 is gradually heated into water vapor and finally discharged from the steam exhaust pipe 5. The temperature of the high-temperature flue gas gradually decreases and is finally discharged from the exhaust port at the bottom of the shell.

Claims

1. A quick-install flue gas heat exchange device, comprising a shell, a plurality of heat exchange components are stacked in the shell, the heat exchange components include a bracket and a snake-shaped heat exchange coil arranged on the bracket, the heat exchange coils of two upper and lower adjacent heat exchange components are connected in series in sequence through elbows, and the characteristics are: An upper limit connector and a lower limit connector are provided on the inner wall of the shell, and a plurality of heat exchange components are stacked between the upper limit connector and the lower limit connector. The uppermost layer of heat exchange components is connected to the upper limit connector, and the lowermost layer of heat exchange components is connected to the lower limit connector. One of the heat exchange components is provided with a steam exhaust port, and the other heat exchange component is provided with a water inlet.

2. The fast-installed flue gas heat exchange device according to claim 1 is characterized in that: A smoke inlet is arranged at the top of the shell, and a smoke exhaust port is arranged at the bottom of the shell.

3. The fast-installed flue gas heat exchange device according to claim 1 is characterized in that: The steam exhaust port is connected with a steam exhaust pipe, and the water inlet is connected with a water inlet pipe.

4. The fast-installed flue gas heat exchange device according to claim 1 is characterized in that: The two upper and lower adjacent heat exchange components are connected by welding or screws, and the two ends of the heat exchange component are connected to the side wall of the shell by welding or screws.

5. The fast-installed flue gas heat exchange device according to claim 1 is characterized in that: The heat exchange coils of the heat exchange components of the upper layer are arranged in a staggered manner with the heat exchange coils of the heat exchange components of the lower layer.

6. The fast-installed flue gas heat exchange device according to claim 1 is characterized in that: The heat exchange coil is provided with heat exchange fins, a gap exists between the heat exchange fins of two adjacent heat exchange straight tubes on the heat exchange coil, and a gap blocking sheet is provided between the heat exchange fins of the two adjacent heat exchange straight tubes, and the gap blocking sheet covers the gap.

7. The fast-installed flue gas heat exchange device according to claim 1 is characterized in that: The gap baffle is V-shaped and comprises two connected wing plates. The two wing plates of the gap baffle are respectively attached to the heat exchange plates of two adjacent heat exchange straight tubes.

8. The fast-installed flue gas heat exchange device according to claim 6 is characterized in that: Both ends of the gap blocking piece are provided with drainage openings.

9. The fast-installed flue gas heat exchange device according to claim 6 is characterized in that: Two ends of the gap blocking piece are connected to the inner side wall of the shell.

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