CN214426208U

CN214426208U - Efficient heat exchange structure of enamel water tank of condensing furnace

Info

Publication number: CN214426208U
Application number: CN202022470245.4U
Authority: CN
Inventors: 余亭月; 陈富林; 张倩
Original assignee: Jiangyin Silicon General Enamel Co ltd
Current assignee: Jiangyin Silicon General Enamel Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-10-19
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a high-efficiency heat exchange structure of an enamel water tank of a condensing furnace, which comprises an upper screen plate and a lower screen plate which are horizontally arranged, wherein a plurality of heat exchange tubes are arranged between the upper screen plate and the lower screen plate, and the upper end and the lower end of each heat exchange tube pass through the upper screen plate and the lower screen plate; the heat exchange tubes are divided into a central layer heat exchange tube array, an inner layer heat exchange tube array and an outer layer heat exchange tube array, wherein the inner part of the outer layer heat exchange tube array is provided with a spoiler, and the spoiler vertically penetrates through the outer layer heat exchange tube array; the bottom of the heat exchange tube array is provided with a U-shaped tube, the U-shaped tube comprises a long U-shaped tube and a short U-shaped tube, one end of the long U-shaped tube is communicated with the bottom of the innermost layer of the central layer of heat exchange tube array, and the other end of the long U-shaped tube is communicated with the bottom of the inner layer of heat exchange tube array; one end of the short U-shaped pipe is communicated with the bottom of the outer layer of central layer heat exchange tube array, and one end of the short U-shaped pipe is communicated with the bottom of the inner layer heat exchange tube array. The efficient heat exchange structure of the enamel water tank of the condensing furnace has high heat exchange efficiency.

Description

Efficient heat exchange structure of enamel water tank of condensing furnace

Technical Field

The utility model relates to a high-efficient heat transfer structure of condenser furnace enamel water tank.

Background

The enamel water tank of the condensing furnace is an important component of a gas water heater, and the gas water heater takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode so as to achieve the purpose of preparing hot water.

The most core part in the enamel water tank of the condensing furnace is the heat exchanger, the quality and the heat exchange efficiency of the heat exchanger directly influence the overall effect of the gas water heater, but in the prior heat exchanger, the length of a flue gas tube array is short, the stroke of the flue gas in the heat exchanger is limited, so the heat exchange area and the heat exchange effect of the heat exchanger are not high, and the quality of the gas water heater is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the aforesaid not enough, provide a high-efficient heat transfer structure of condensing furnace enamel water tank that heat exchange efficiency is high.

The purpose of the utility model is realized like this:

the efficient heat exchange structure of the enamel water tank of the condensing furnace comprises an upper screen plate and a lower screen plate which are horizontally arranged, wherein a plurality of heat exchange tubes are arranged between the upper screen plate and the lower screen plate, and the upper end and the lower end of each heat exchange tube penetrate through the upper screen plate and the lower screen plate; the heat exchange tubes are divided into a central layer heat exchange tube array, an inner layer heat exchange tube array and an outer layer heat exchange tube array, wherein the central layer heat exchange tube array has two circles at the center, the outer layer heat exchange tube array is positioned at the outermost circle, the inner layer heat exchange tube array is positioned at one circle between the central layer heat exchange tube array and the outer layer heat exchange tube array, and a spoiler is arranged inside the outer layer heat exchange tube array and vertically penetrates through the outer layer heat exchange tube array; the bottom of the heat exchange tube array is provided with a U-shaped tube, the U-shaped tube comprises a long U-shaped tube and a short U-shaped tube, one end of the long U-shaped tube is communicated with the bottom of the innermost layer of the central layer of heat exchange tube array, and the other end of the long U-shaped tube is communicated with the bottom of the inner layer of heat exchange tube array; one end of the short U-shaped pipe is communicated with the bottom of the outer layer of central layer heat exchange tube array, and one end of the short U-shaped pipe is communicated with the bottom of the inner layer heat exchange tube array.

The heat exchange tube array welding flange and the U-shaped tube connecting flange are arranged at the joint of the central layer heat exchange tube array, the inner layer heat exchange tube array and the U-shaped tube respectively, the heat exchange tube array welding flange is positioned above the U-shaped tube connecting flange, the heat exchange tube array welding flange is arranged at the bottom of the central layer heat exchange tube array and the inner layer heat exchange tube array, the U-shaped tube connecting flange is sleeved at the two ends of the U-shaped tube, the central layer heat exchange tube array and the inner layer heat exchange tube array are communicated with the U-shaped tube after being welded through the heat exchange tube array welding flange and the U-shaped tube connecting flange, and the bottom of the outer layer heat exchange tube array is not communicated with the U-shaped tube. And the joints of the heat exchange tubes, the upper screen plate and the lower screen plate are welded and fixed.

The utility model discloses condenser furnace enamel water tank's high-efficient heat transfer structure has following advantage:

the efficient heat exchange structure of the enamel water tank of the condensing furnace is structurally improved by the heat exchange tube array, the U-shaped tubes are additionally arranged at the bottoms of the inner layer heat exchange tube array and the outer layer heat exchange tube array, smoke in the heat exchange tube array flows back up and down through the U-shaped tubes, and the smoke is coiled in the heat exchange tube array in a snake shape, so that the overall stroke of the smoke is increased, and the heat exchange area and the heat exchange effect of the heat exchange tube array are improved; and still installed the spoiler additional in outer layer heat transfer shell and tube to avoid the flue gas to vertically pass through outer layer heat transfer shell and tube, increased the flue gas stroke, improved heat transfer area and the heat transfer effect of heat transfer shell and tube.

Drawings

Fig. 1 is the structure schematic diagram of the high-efficiency heat exchange structure of the enamel water tank of the condensing furnace of the utility model.

Fig. 2 is a bottom view of fig. 1.

FIG. 3 is an enlarged view of the welded portion of the heat exchange tubes and the U-shaped tubes.

Fig. 4 is a top view of fig. 1.

In the figure: the heat exchange device comprises an upper screen plate 1, a lower screen plate 2, heat exchange tubes 3, a central layer heat exchange tube 3.1, an inner layer heat exchange tube 3.2, an outer layer heat exchange tube 3.3, a U-shaped tube 4, a long U-shaped tube 4.1, a short U-shaped tube 4.2, a heat exchange tube welding flange 5, a U-shaped tube connecting flange 6 and a spoiler 7.

Detailed Description

Referring to fig. 1 to 4, the utility model relates to a high-efficient heat transfer structure of condenser furnace enamel water tank, it includes the last otter board 1 and the lower otter board 2 that the level set up, go up otter board 1 and be provided with many heat transfer tubulations 3 down between the otter board 2, otter board 1 and lower otter board 2 are passed at the upper and lower both ends of heat transfer tubulation 3 to with last otter board 1, lower otter board 2 welded fastening.

The heat exchange tubes 3 are divided into a central layer heat exchange tube 3.1, an inner layer heat exchange tube 3.2 and an outer layer heat exchange tube 3.3, wherein the central layer heat exchange tube 3.1 is arranged in two circles at the center, the outer layer heat exchange tube 3.3 is arranged in one circle at the outermost layer, the inner layer heat exchange tube 3.2 is arranged in one circle between the central layer heat exchange tube 3.1 and the outer layer heat exchange tube 3.3, a U-shaped tube 4 is arranged at the bottom of the heat exchange tube 3 and is communicated with the bottom of part of the heat exchange tube 3 through the U-shaped tube 4, the U-shaped tube 4 comprises a long U-shaped tube 4.1 and a short U-shaped tube 4.2, one end of the long U-shaped tube 4.1 is communicated with the bottom of the innermost layer heat exchange tube 3.1 at the center layer, and the other end of the long U-shaped tube 4.1 is communicated with the bottom of the inner layer heat exchange tube 3.2; one end of the short U-shaped pipe 4.2 is communicated with the bottom of the outer layer of the central layer heat exchange tube array 3.1, and one end of the short U-shaped pipe 4.2 is communicated with the bottom of the inner layer heat exchange tube array 3.2. And the bottom of the central layer heat exchange tube array 3.1, the central layer heat exchange tube array 3.1 and the inner layer heat exchange tube array 3.2 is provided with a heat exchange tube array welding flange 5, two ends of the U-shaped tube 4 are sleeved with U-shaped tube connecting flanges 6, the heat exchange tube array welding flange 5 is positioned above the U-shaped tube connecting flanges 6, the central layer heat exchange tube array 3.1 and the inner layer heat exchange tube array 3.2 are communicated with the U-shaped tube 4 after being welded through the heat exchange tube array welding flanges 5 and the U-shaped tube connecting flanges 6, and the bottom of the outer layer heat exchange tube array 3.3 is not communicated with the U-shaped tube 4.

The inside of outer heat transfer tubulation 3.3 is provided with spoiler 7, and outer heat transfer tubulation 3.3 is vertically passed to this spoiler 7, and spoiler 7 can avoid the flue gas vertical to pass through outer heat transfer tubulation 3.3, has increased the flue gas stroke, has improved heat transfer area and the heat transfer effect of heat transfer tubulation 3.

The flue gas flow direction of the high-efficiency heat exchange structure of the enamel water tank of the condensing furnace is as follows: flue gas passes downwards from central layer heat transfer tubulation 3.1, gets into the bottom of inlayer heat transfer tubulation 3.2 through long U type pipe 4.1, short U type pipe 4.2, and the flue gas is upwards passed afterwards, lets in outer heat transfer tubulation 3.3 downwards again, and the flue gas is blockked by the spoiler in outer heat transfer tubulation 3.3, snakelike coiling passes through.

Claims

1. High-efficient heat transfer structure of condensing furnace enamel water tank, its characterized in that: the heat exchange device comprises an upper screen plate and a lower screen plate which are horizontally arranged, wherein a plurality of heat exchange tubes are arranged between the upper screen plate and the lower screen plate, and the upper end and the lower end of each heat exchange tube penetrate through the upper screen plate and the lower screen plate; the heat exchange tubes are divided into a central layer heat exchange tube array, an inner layer heat exchange tube array and an outer layer heat exchange tube array, wherein the central layer heat exchange tube array has two circles at the center, the outer layer heat exchange tube array is positioned at the outermost circle, the inner layer heat exchange tube array is positioned at one circle between the central layer heat exchange tube array and the outer layer heat exchange tube array, and a spoiler is arranged inside the outer layer heat exchange tube array and vertically penetrates through the outer layer heat exchange tube array; the bottom of the heat exchange tube array is provided with a U-shaped tube, the U-shaped tube comprises a long U-shaped tube and a short U-shaped tube, one end of the long U-shaped tube is communicated with the bottom of the innermost layer of the central layer of heat exchange tube array, and the other end of the long U-shaped tube is communicated with the bottom of the inner layer of heat exchange tube array; one end of the short U-shaped pipe is communicated with the bottom of the outer layer of central layer heat exchange tube array, and one end of the short U-shaped pipe is communicated with the bottom of the inner layer heat exchange tube array.

2. The high-efficiency heat exchange structure of the enamel water tank of the condensing furnace as claimed in claim 1, characterized in that: the heat exchange tube array welding flange and the U-shaped tube connecting flange are arranged at the joint of the central layer heat exchange tube array, the inner layer heat exchange tube array and the U-shaped tube respectively, the heat exchange tube array welding flange is positioned above the U-shaped tube connecting flange, the heat exchange tube array welding flange is arranged at the bottom of the central layer heat exchange tube array and the inner layer heat exchange tube array, the U-shaped tube connecting flange is sleeved at the two ends of the U-shaped tube, the central layer heat exchange tube array and the inner layer heat exchange tube array are communicated with the U-shaped tube after being welded through the heat exchange tube array welding flange and the U-shaped tube connecting flange, and the bottom of the outer layer heat exchange tube array is not communicated with the U-shaped tube.

3. The high-efficiency heat exchange structure of the enamel water tank of the condensing furnace as claimed in claim 1, characterized in that: and the joints of the heat exchange tubes, the upper screen plate and the lower screen plate are welded and fixed.