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CN-224201885-U - Condensing heat exchange device and gas water heater

CN224201885UCN 224201885 UCN224201885 UCN 224201885UCN-224201885-U

Abstract

The utility model belongs to the technical field of water heaters and discloses a condensation heat exchange device and a gas water heater, wherein the condensation heat exchange device comprises a smoke discharging shell, a fog discharging shell and a limiting structure, and a fog discharging channel is formed in the fog discharging shell; the smoke exhaust shell is sleeved outside the smoke exhaust shell and fixed with the smoke exhaust shell through a screw, a smoke exhaust channel is formed between the smoke exhaust shell and the smoke exhaust shell, the limiting structure is arranged on the smoke exhaust shell and comprises a first limiting block and a first limiting groove which are in up-and-down plug-in fit, a second limiting block and a second limiting groove which are in up-and-down plug-in fit, and the first limiting block and the second limiting block are arranged at intervals up and down, so that the depth, the circumferential angle and the angle of the central axis of the smoke exhaust shell, which extend into the smoke exhaust shell, can be limited. The condensation heat exchange device and the gas water heater comprising the condensation heat exchange device are high in disassembly and assembly efficiency.

Inventors

  • ZHANG JINLIANG
  • ZHANG SHANGBING
  • YU HAOLUN

Assignees

  • 广东万和新电气股份有限公司

Dates

Publication Date
20260505
Application Date
20250430

Claims (10)

  1. 1. Condensation heat transfer device, including arranging fog casing (5) and discharging fume casing (6), be formed with in arranging fog casing (5) and arrange fog passageway (52), it establishes to arrange fog casing (5) outward to arrange fog casing (6) cover, arrange fog casing (6) with the interval is formed with between arranging fog casing (5) and discharges fume passageway (7), its characterized in that, condensation heat transfer device still includes: The smoke exhausting device comprises a limiting structure, wherein the limiting structure comprises a first limiting block (64), a second limiting block (56), a first limiting groove (55) and a second limiting groove (65), one of the first limiting block (64) and the first limiting groove (55) is arranged at one end of a smoke exhausting shell (6), the other of the first limiting block (64) and the first limiting groove (55) is arranged at one end of the smoke exhausting shell (5), one of the second limiting block (56) and the second limiting groove (65) is arranged at the other end of the smoke exhausting shell (6), the other of the second limiting block (56) is arranged at the other end of the smoke exhausting shell (5), the first limiting block (64) is in plug-in fit with the first limiting groove (55) in the up-down direction, the second limiting block (56) is in plug-in fit with the second limiting groove (65) in the up-down direction so as to limit the depth of the smoke exhausting shell (5) extending into the smoke exhausting shell (6), and the smoke exhausting shell (5) is fixed with the smoke exhausting screw (6) through the smoke exhausting screw (30).
  2. 2. The condensation heat exchange device according to claim 1, wherein at least one of the first limit groove (55) and the second limit groove (65) is closed at one of both sides disposed opposite to each other in the up-down direction to limit the depth of the mist discharge housing (5) extending into the smoke discharge housing (6), and/or a sectional area of an end of the first limit groove (55) into which the first limit groove (64) is inserted is larger than a sectional area of the other end of the first limit groove (55), and/or a sectional area of an end of the second limit groove (65) into which the second limit groove (56) is inserted is larger than a sectional area of the other end of the second limit groove (65).
  3. 3. The condensing heat exchange device according to claim 2, wherein the first limit groove (55), the first limit block (64), the second limit groove (65) and the second limit block (56) are each provided in a wedge shape.
  4. 4. The condensing heat exchange device according to claim 1, wherein one of the smoke discharging shell (6) and the mist discharging shell (5) is provided with a bolt fixing column (54), the bolt fixing column (54) is abutted to the other of the smoke discharging shell (6) and the mist discharging shell (5), and a mounting hole for the screw (30) to pass through is formed in the bolt fixing column (54) in a penetrating manner.
  5. 5. The condensation heat exchange device according to claim 1, wherein a plurality of first limiting blocks (64) and/or second limiting blocks (56) are arranged at intervals along the circumferential direction of the mist discharge housing (5).
  6. 6. The condensing heat exchange device according to any one of claims 1-5, further comprising a condensing shell (1), wherein the upper end of the mist discharging shell (5) penetrates out of the condensing shell (1) and is communicated with the atmosphere, the lower end of the mist discharging shell (5) is positioned in the condensing shell (1) and is communicated with the inner cavity of the condensing shell (1), the outer wall of the smoke discharging shell (6) is provided with convex ribs (62), and the ribs (62) extend along the up-down direction and are abutted with the condensing shell (1), and/or, The upper end of the smoke discharging shell (6) penetrates out of the condensation shell (1) and is communicated with the atmosphere, the lower end of the smoke discharging shell (6) is located in the condensation shell (1) and is communicated with an inner cavity of the condensation shell (1), a connecting plate (63) is arranged on the outer side wall of the smoke discharging shell (6) in a surrounding mode, the connecting plate (63) is connected with the top of the condensation shell (1), and a first sealing ring (8) is arranged between the connecting plate (63) and the condensation shell (1).
  7. 7. The condensing heat exchange device according to claim 6, wherein a first accommodating groove (12) is formed in one of the condensing shell (1) and the connecting plate (63), the first sealing ring (8) is embedded in the first accommodating groove (12) and abuts against the other of the condensing shell (1) and the connecting plate (63), and an annular protruding portion (81) is formed on one side, facing away from the groove bottom of the first accommodating groove (12), of the first sealing ring (8) and/or the groove bottom of the first accommodating groove (12).
  8. 8. The condensing heat exchange device according to any one of claims 1-5, further comprising a transition pipe (20) and a smoke pipe, wherein the transition pipe (20) is in plug-in fit with the smoke pipe and the smoke exhaust shell (6), a second sealing ring (9) is arranged between the transition pipe (20) and the smoke exhaust shell (6), one of the transition pipe (20) and the smoke exhaust shell (6) is provided with an annular second accommodating groove (201), and the second sealing ring (9) is embedded in the second accommodating groove (201) and abuts against the transition pipe (20) and the smoke exhaust shell (6); and/or a third sealing ring (10) is arranged between the transition pipe (20) and the smoke pipe, one of the transition pipe (20) and the smoke pipe is provided with an annular third accommodating groove (202), and the third sealing ring (10) is embedded in the third accommodating groove (202) and abuts against the transition pipe (20) and the smoke pipe.
  9. 9. The condensing heat exchange device according to claim 8, wherein a side surface of the second sealing ring (9) facing away from the bottom of the second accommodating groove (201) is convexly provided with a first sealing sheet (91), the first sealing sheet (91) is inclined upwards in a direction approaching to the central axis of the transition pipe (20), a side surface of the third sealing ring (10) facing away from the bottom of the third accommodating groove (202) is convexly provided with a second sealing sheet (101), and the second sealing sheet (101) is inclined downwards in a direction approaching to the central axis of the transition pipe (20).
  10. 10. A gas water heater comprising a main heat exchanger, characterized in that the gas water heater further comprises a condensation heat exchange device according to any one of claims 1-9, wherein the water inlet end and the smoke outlet end of the main heat exchanger are both connected to the condensation heat exchange device.

Description

Condensing heat exchange device and gas water heater Technical Field The utility model relates to the technical field of water heaters, in particular to a condensation heat exchange device and a gas water heater. Background The condensation type gas water heater has the working principle that the flue gas subjected to heat exchange and temperature reduction by the main heat exchanger is sent into a condensation shell of the condensation heat exchange device, and cold water is sent into a condensation heat exchange tube of the condensation heat exchange device before being sent into the main heat exchanger, so that the flue gas in the condensation shell is utilized to preheat the cold water. During this process, the water vapor in the flue gas is condensed to form condensed water, which continuously accumulates in the bottom of the condensing housing. One of the common condensate water treatment modes at present is that an atomization unit is arranged at the bottom of a condensation shell, the atomization unit atomizes condensate water to form water mist, and smoke after heat exchange enters a mist discharge shell and carries the water mist in the mist discharge shell to be discharged out of the condensation shell. In order to realize the flue gas reposition of redundant personnel, avoid the flue gas to fully get into and arrange fog casing in the pressure boost, in order to prevent simultaneously that the water smoke after the comdenstion water atomizing from rising the in-process recondensing, lead to comdenstion water discharge efficiency to reduce, it is equipped with the casing to arrange the smoke exhaust casing still to overlap outside the fog casing, form smoke exhaust channel between the casing and the fog exhaust casing, the flue gas after the heat transfer partly gets into and arranges fog casing and discharges along with water smoke together, another part gets into smoke exhaust channel and carries out heat preservation heating to fog exhaust casing, avoid the too fast condensation liquefaction of water smoke to reduce the atmospheric pressure in the fog exhaust casing, and then reduce the suppression effect to atomizing unit water smoke shaping. When the fog discharging shell is assembled in the smoke discharging shell, in order to enable the fog discharging shell to be coaxial with the smoke discharging shell, the smoke circulation speed of the smoke discharging channel at the same height is guaranteed to be the same, the fog discharging shell is connected with the smoke discharging shell through a plurality of groups of screws which are arranged at intervals up and down, and therefore the condensation heat exchange device is complex to assemble and low in assembly efficiency. Disclosure of utility model One of the technical problems to be solved by the utility model is to provide a condensing heat exchange device which can reduce the use of screws and improve the assembly and disassembly efficiency of a smoke discharging shell and a mist discharging shell. The second technical problem to be solved by the utility model is to provide a gas water heater, which can increase and reduce the use of screws and improve the assembly efficiency. The first technical problem is solved by the following technical scheme: The condensation heat exchange device comprises a mist discharging shell, a smoke discharging shell and a limiting structure, wherein a mist discharging channel is formed in the mist discharging shell, the smoke discharging shell is sleeved outside the mist discharging shell, a smoke discharging channel is formed between the smoke discharging shell and the mist discharging shell, a first limiting block, a second limiting block, a first limiting groove and a second limiting groove of the limiting structure are formed in the first limiting block and the second limiting groove, one of the first limiting block and the first limiting groove is arranged at one end of the smoke discharging shell, the other of the first limiting block and the first limiting groove is arranged at the other end of the mist discharging shell, the other of the second limiting block and the second limiting groove is arranged at the other end of the mist discharging shell, the first limiting block is in up-down plug connection with the first limiting groove and is in up-down plug connection with the second limiting groove so as to limit the depth of the mist discharging shell extending into the shell, and the mist discharging shell is fixed to the mist discharging shell through screws. Compared with the background technology, the condensing heat exchange device has the following beneficial effects: When the fog casing is arranged in the assembly and the fume casing is discharged, the first limiting block and the first limiting groove which are matched in an inserting way and the second limiting block and the second limiting groove which are matched in an inserting way are used for circumferentially limiting the fog casing