CN215062892U

CN215062892U - Novel heat exchanger of enamel water tank

Info

Publication number: CN215062892U
Application number: CN202121164682.1U
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: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-07
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to a novel enamel water tank's heat exchanger, this heat exchanger include the last otter board and the lower otter board that the level set up, go up the otter board and pass by the gas pipe with the positive centre of otter board down, stretch out in otter board down the bottom of gas pipe, it still is provided with many heat transfer tubulations to go up the otter board and down between the otter board, the heat transfer tubulation divide into inlayer heat transfer tubulation, outer heat transfer tubulation, and inlayer heat transfer tubulation is located the periphery of gas pipe, the bottom of otter board is provided with the drainage cover down. This kind of novel enamel water tank's heat exchanger is through directly passing otter board down with the gas pipe, and the hot gas gets into wherein from the bottom of gaseous follow inlayer heat transfer tubulation and carries out the heat transfer in the drainage cover of otter board bottom from the gas pipe direct connection down, just so need not to use U type pipe welding to come each heat transfer tubulation intercommunication, the production process of the heat exchanger of simplification to its life has been prolonged.

Description

Novel heat exchanger of enamel water tank

Technical Field

The utility model relates to a novel enamel water tank's heat exchanger.

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 central part in the enamel water tank of the condensing furnace is a heat exchanger, and the quality and the heat exchange efficiency of the heat exchanger directly influence the overall effect of the gas water heater. However, the heat exchanger in the prior gas water heater has the following defects:

1. inlayer and outer heat exchanger shell and tube need set up U type pipe and flange in the bottom, through welded mode with inside and outside shell and tube coupling, however the shell and tube is in a great deal, inconvenient during a plurality of U type union couplings to after the heat exchanger uses for a long time, the joint department appears corroding easily and leads to piercing through, leads to the life of heat exchanger to receive the influence.

2. When the conventional enamel water tank is sintered, the water tank is easy to generate thermal deformation, and the quality of a product is influenced.

3. 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

The utility model aims to overcome the above-mentioned not enough, provide simple to operate, the quality is higher, long service life, and water tank non-deformable, a novel enamel water tank's heat exchanger that heat exchange efficiency is high.

The purpose of the utility model is realized like this:

a heat exchanger of a novel enamel water tank comprises an upper screen plate and a lower screen plate which are horizontally arranged, the middle of the upper screen plate and the lower screen plate is penetrated by a gas pipe, a plurality of heat exchange tubes are arranged between the upper screen plate and the lower screen plate, the upper end and the lower end of the heat exchange tube are penetrated through the upper screen plate and the lower screen plate, the joints of the heat exchange tube and the upper screen plate and the lower screen plate are welded and fixed, the heat exchange tubes are divided into an inner layer heat exchange tube and an outer layer heat exchange tube from the inner ring to the outer ring, the inner layer heat exchange tube is positioned at the periphery of the gas pipe, the bottom of the lower screen plate is provided with a drainage cover which covers the bottoms of the gas pipe and the inner layer heat exchange tube nest, an upper seal head is arranged above the upper screen plate, and a lower seal head is arranged below the lower screen plate, the upper seal head and the lower seal head are respectively fixed with the upper screen plate and the lower screen plate, and the tail end of the lower seal head is connected with a discharge pipe.

Preferably, the spoiler is arranged inside the outer heat exchange tube nest, vertically penetrates the outer heat exchange tube nest, the top of the spoiler is a bending part, the bending part hooks the edge of the outer heat exchange tube nest, a vertical plate is arranged in the middle of the spoiler, blocking pieces are fixed on two sides of the vertical plate, and the blocking pieces are horizontally arranged and arranged at intervals from top to bottom on the vertical plate.

Preferably, the outer side of the gas pipe is welded with a suspension burning ring.

Preferably, a circle of external threads are arranged outside the tail end of the discharge pipe, and internal threads are arranged in a water heater pipeline connected with the discharge pipe.

Preferably, the inside of the gas pipe and the inside of the heat exchange tube are coated with anti-corrosion glaze coatings.

Preferably, a connecting plate is arranged between the outside of the heat exchanger and the pipeline of the water heater.

Preferably, the two ends of the connecting plate are respectively welded and fixed with the outer wall of the lower end enclosure and the tail end of the water heater pipeline.

The utility model relates to a novel enamel water tank's heat exchanger has following advantage:

1. through directly passing otter board down with the gas pipe, the hot gas gets into wherein from the bottom of gas pipe direct connection to otter board bottom in the drainage cover down, follows afterwards and carries out the heat transfer from the bottom of inlayer heat transfer shell and tube, just so need not to use U type pipe welding to communicate each heat transfer shell and tube, the production process of the heat exchanger of simplification to its life has been prolonged.

2. The connecting plate is arranged between the outside of the heat exchanger and the water heater pipeline, and the two ends of the connecting plate are respectively welded and fixed with the outer wall of the lower seal head and the tail end of the water heater pipeline, so that the heat exchanger can be shaped when sintered in a furnace, the deformation of the heat exchanger after sintering is avoided, and the product quality is ensured.

3. The flue gas snakelike coiling passes through in the heat transfer tubulation, and the flue gas in the heat transfer tubulation flows back from top to bottom, has increased the whole stroke of flue gas, has improved the heat transfer area and the heat transfer effect of heat transfer tubulation to still installed the spoiler additional in outer layer heat transfer tubulation, thereby avoided the flue gas vertical through outer layer heat transfer tubulation, increased the flue gas stroke, improved the heat transfer area and the heat transfer effect of heat transfer tubulation.

Drawings

Fig. 1 is the structure schematic diagram of the heat exchanger of the novel enamel water tank of the utility model.

Fig. 2 is a side view of the heat exchanger of a novel enamel water tank of the present invention.

FIG. 3 is a cross-sectional view of the upper mesh plate of FIG. 1.

FIG. 4 is a cross-sectional view of the lower mesh panel of FIG. 1.

Fig. 5 is a front view of the internal turbulators of the outer heat exchange tube array of fig. 4.

Fig. 6 is a side view of the internal turbulators of the outer heat exchange tube bank of fig. 4.

FIG. 7 is an enlarged top view of the spoiler of FIG. 5.

In the figure: the device comprises an upper screen plate 1, a lower screen plate 2, a gas pipe 3, a heat exchange tube array 4, an inner layer heat exchange tube array 4.1, an outer layer heat exchange tube array 4.2, a flow guide cover 5, an upper end enclosure 6, a lower end enclosure 7, a discharge pipe 8, a spoiler 9, a bent part 9.1, a vertical plate 9.2, a blocking sheet 9.3, a hanging burning ring 10, external threads 11 and a connecting plate 12.

Detailed Description

Referring to fig. 1 to 7, the utility model relates to a novel heat exchanger of enamel water tank, this heat exchanger include the last otter board 1 and the lower otter board 2 that the level set up, go up the otter board 1 and pass by gas pipe 3 in the middle of the centre of lower otter board 2, the bottom of gas pipe 3 slightly stretches out in lower otter board 2 to with last otter board 1 and lower otter board 2 welded fastening.

Go up otter board 1 and still be provided with many heat transfer tubulations 4 down between the otter board 2, the upper and lower both ends of heat transfer tubulation 4 pass otter board 1 and lower otter board 2, and heat transfer tubulation 4 and last otter board 1, lower otter board 2 junction welded fastening, heat transfer tubulation 4 divide into inner heat transfer tubulation 4.1, outer heat transfer tubulation 4.2 from the inner circle to the outer lane, and inner heat transfer tubulation 4.1 is located the periphery of gas pipe 3.

The bottom of the lower screen plate 2 is provided with a drainage cover 5, the drainage cover 5 is a sealed semicircular cover shell, the top of the drainage cover 5 is welded and fixed with the bottom of the lower screen plate 2, and the drainage cover 5 covers the bottom of the gas pipe 3 and the bottom of the inner layer heat exchange tube array 4.1.

An upper seal head 6 is arranged above the upper screen plate 1, a lower seal head 7 is arranged below the lower screen plate 2, the upper seal head 6 and the lower seal head 7 are respectively fixed with the upper screen plate 1 and the lower screen plate 2, and the upper seal head 6 and the lower seal head 7 are used for sealing the upper end and the lower end of the heat exchange tube array 4, so that hot gas flows back up and down in the heat exchange tube array 4, and water in the heat exchanger is heated.

The utility model discloses a heat exchanger, including outer heat transfer tubulation 4.2, the inside of outer heat transfer tubulation 4.2 can set up spoiler 9, and this spoiler 9 is vertical to pass outer heat transfer tubulation 4.2, and the top of spoiler 9 is the portion of bending 9.1, and the portion of bending 9.1 catches on the border of outer heat transfer tubulation 4.2 to hang spoiler 9, the centre of spoiler 9 is a vertical board 9.2, and the both sides of vertical board 9.2 are fixed with and block piece 9.3, block the horizontal setting of piece 9.3, block piece 9.3 and arrange for the left and right sides interval at vertical board 9.2 from the top down, block that piece 9.3 can avoid the flue gas vertically to pass through outer heat transfer tubulation 4.2, increased the flue gas stroke, improved heat transfer area and heat transfer effect of heat transfer tubulation 4.2.

The gas pipe 3 and the heat exchange tube nest 4 are coated with anti-corrosion glaze coatings, so that corrosion of acid water to pipelines can be avoided, and the service life of the heat exchanger is prolonged.

And a hanging burning ring 10 is welded on the outer side of the gas pipe 3, and the hanging burning ring 10 is used for hanging the heat exchanger and then sintering in the furnace.

The tail end of the lower end socket 7 is connected with the discharge pipe 8, a circle of external threads 11 are arranged outside the tail end of the discharge pipe 8, and internal threads are arranged in a water heater pipeline connected with the discharge pipe 8, so that the discharge pipe can be conveniently and firmly fixed and tightly connected, and gaps are avoided.

And be provided with connecting plate 12 between the outside of heat exchanger and the water heater pipeline, specifically, the both ends of connecting plate 12 respectively with the outer wall of low head 7, the terminal welded fastening of water heater pipeline, connecting plate 12 can play the design effect to the heat exchanger when the stove sintering, avoids the heat exchanger to produce the deformation after sintering, has guaranteed product quality.

The gas flow direction of the heat exchanger of the novel enamel water tank is as follows: the heating gas is directly communicated into the flow guide cover 5 from the gas pipe 3, then enters the gas from the bottom of the inner layer heat exchange tube array 4.1, the gas passes upwards and enters the upper end enclosure 6, and finally enters the gas from the top of the outer layer heat exchange tube array 4.2, the gas passes through the outer layer heat exchange tube array 4.2 in a snake-shaped winding manner, finally enters the lower end enclosure 7, and is discharged from the discharge pipe 8.

Claims

1. The utility model provides a heat exchanger of novel enamel water tank which characterized in that: this heat exchanger includes the last otter board and the lower otter board that the level set up, go up the otter board and pass by the gas pipe with the positive centre of otter board down, go up and still be provided with many heat transfer tubulations between otter board and the lower otter board, last otter board and lower otter board are passed at the upper and lower both ends of heat transfer tubulation, and heat transfer tubulation and last otter board, lower otter board junction welded fastening, the heat transfer tubulation divide into inlayer heat transfer tubulation, outer heat transfer tubulation from the inner circle to the outer lane, and inlayer heat transfer tubulation is located the periphery of gas pipe, the bottom of otter board is provided with the drainage cover down, and the drainage cover covers the bottom of gas pipe, inlayer heat transfer tubulation, the top of going up the otter board is provided with the upper cover, is provided with the low head in the below of otter board down, and upper otter board, the lower head is fixed with the upper otter board, the end and the discharge pipe are connected down.

2. The heat exchanger of the novel enamel water tank as claimed in claim 1, characterized in that: the utility model discloses a solar heat exchanger, including outer heat transfer shell and tube, the inside of outer heat transfer shell and tube sets up the spoiler, and this spoiler is vertical to pass outer heat transfer shell and tube, and the top of spoiler is the portion of bending, and the border of outer heat transfer shell and tube is caught in the portion of bending, and the centre of spoiler is a vertical board, and the both sides of vertical board are fixed with and block the piece, block the setting of piece level, block the piece and be left and right sides interval arrangement at vertical board from the top down.

3. The heat exchanger of the novel enamel water tank as claimed in claim 1, characterized in that: and a hanging burning ring is welded on the outer side of the gas pipe.

4. The heat exchanger of the novel enamel water tank as claimed in claim 1, characterized in that: and a circle of external threads are arranged outside the tail end of the discharge pipe, and internal threads are arranged in a water heater pipeline connected with the discharge pipe.

5. The heat exchanger of the novel enamel water tank as claimed in claim 1, characterized in that: and anti-corrosion glaze coatings are coated in the gas pipe and the heat exchange tube.

6. The heat exchanger of the novel enamel water tank as claimed in claim 1, characterized in that: and a connecting plate is arranged between the outside of the heat exchanger and the pipeline of the water heater.

7. The heat exchanger of the novel enamel water tank as claimed in claim 6, wherein: and two ends of the connecting plate are respectively welded and fixed with the outer wall of the lower end enclosure and the tail end of the water heater pipeline.