CN214095661U

CN214095661U - Split type high temperature heat exchanger

Info

Publication number: CN214095661U
Application number: CN202023301624.7U
Authority: CN
Inventors: 刘学磊; 王成龙; 秦广庆; 孙大鹏
Original assignee: Jinan Zhongchang Drying Equipment Co ltd
Current assignee: Jinan Zhongchang Drying Equipment Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-31
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a split type high temperature heat exchanger, high temperature radiation heat transfer section including the order is connected, low temperature radiation heat transfer section and shell and tube type heat exchanger, the high temperature flue gas gets into from high temperature radiation heat transfer section, go out from shell and tube type heat exchanger, at high temperature radiation heat transfer section, flue gas passageway and heat transfer passageway all have in the low temperature radiation heat transfer section, wherein high temperature radiation heat transfer section, communicate each other between the flue gas passageway between the low temperature radiation heat transfer section, high temperature radiation heat transfer section, communicate each other between the low temperature radiation heat transfer section heat transfer passageway, and flue gas passageway and heat transfer passageway separate into independent passageway each other, shell and tube type heat exchanger air outlet and heat transfer passageway intercommunication. The utility model discloses the heat exchanger adopts split type structure, is convenient for transport, maintains, sets up the fin in the heat transfer passageway of the high temperature radiation heat transfer section of heat exchanger and low temperature radiation heat transfer section, can increase the area of contact of the interior gas of heat transfer passageway and inner tube to accelerate the rapid cooling in the flue gas passageway.

Description

Split type high temperature heat exchanger

Technical Field

The utility model belongs to the technical field of the heat exchanger, especially, relate to a dividing wall type heat exchanger.

Background

The heat exchanger is an essential device in the technical process and is widely used in petrochemical industry, medicine, power, metallurgy, refrigeration and other departments. According to different process flows and production scales, the most suitable heat exchanger needs to be selected according to specific production conditions. Although the existing heat exchangers are various, few ultrahigh-temperature heat exchangers capable of handling the smoke inlet temperature of 800-.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a split type high temperature heat exchanger of high temperature resistance is provided.

The utility model discloses a realize through following technical scheme:

the utility model provides a split type high temperature heat exchanger, including the high temperature radiation heat transfer section that connects in proper order, low temperature radiation heat transfer section and shell and tube type heat exchanger, high temperature flue gas gets into from high temperature radiation heat transfer section, go out from shell and tube type heat exchanger, flue gas passageway and heat transfer passageway all have in high temperature radiation heat transfer section, low temperature radiation heat transfer section, wherein communicate each other between the flue gas passageway between high temperature radiation heat transfer section, the low temperature radiation heat transfer section, communicate each other between the heat transfer passageway of high temperature radiation heat transfer section, and flue gas passageway and the mutual separation of heat transfer passageway become independent passageway, shell and tube type heat exchanger air outlet and heat transfer passageway intercommunication.

Preferably, the high-temperature radiation heat exchange section comprises a first inner cylinder and a first outer cylinder, a first heat exchange channel is arranged between the first inner cylinder and the first outer cylinder, and a first fin is arranged on the outer wall of the first inner cylinder between the first inner cylinder and the first outer cylinder.

Furthermore, the two ends of the first fin close to one end of the smoke inlet are respectively abutted against the first inner cylinder and the first outer cylinder.

Preferably, the low-temperature radiation heat exchange section comprises a second inner cylinder and a second outer cylinder, a second heat exchange channel is arranged between the second inner cylinder and the second outer cylinder, a second fin is arranged on the outer wall of the second inner cylinder between the second inner cylinder and the second outer cylinder, and the second heat exchange channel is communicated with the first heat exchange channel.

Preferably, a first air-equalizing ring plate is arranged between the connecting ends of the high-temperature radiation heat exchange section and the low-temperature radiation heat exchange section, and uniformly distributed through holes are formed in the first air-equalizing ring plate.

Preferably, a second air-equalizing ring plate is arranged between the low-temperature radiation heat exchange section and the connecting end of the shell-and-tube heat exchanger, and uniformly distributed through holes are formed in the second air-equalizing ring plate.

Preferably, the shell-and-tube heat exchanger comprises a flue gas chamber, a flue gas inlet and a flue gas outlet, the flue gas inlet is communicated with a flue gas channel of the low-temperature radiation heat exchange section, a heat exchange tube penetrating through the flue gas chamber is arranged in the flue gas chamber, two ends of the heat exchange tube both extend out of the flue gas chamber, a sub-tube penetrating through the heat exchange tube is arranged in the heat exchange tube, flue gas passes through the sub-tube, one end of the heat exchange tube is connected with the air inlet, and the other end of the heat exchange tube is.

Preferably, one side of the flue gas chamber is provided with an ash removal door which is convenient for cleaning the interior of the flue gas chamber.

Preferably, the smoke inlet and the smoke outlet are arranged in a staggered mode, and an S-shaped flue is arranged in the smoke chamber.

The utility model has the advantages that: the utility model discloses the heat exchanger adopts split type structure, is convenient for transport, maintains, sets up the fin in the heat transfer passageway of the high temperature radiation heat transfer section of heat exchanger and low temperature radiation heat transfer section, can increase the area of contact of the interior gas of heat transfer passageway and inner tube to accelerate the rapid cooling in the flue gas passageway.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic structural view of the high temperature radiation heat exchange section of the present invention;

FIG. 3 is a schematic structural view of the low-temperature radiation heat exchange section of the present invention;

fig. 4 is the structure schematic diagram of the shell-and-tube heat exchanger of the utility model.

Detailed Description

The present invention will be further described with reference to the following examples.

Examples

A split type high temperature heat exchanger as shown in figures 1-4 comprises a high temperature radiation heat exchange section 1, a low temperature radiation heat exchange section 2 and a shell-and-tube heat exchanger 3 which are connected in sequence, wherein the high temperature radiation heat exchange section 1, the low temperature radiation heat exchange section 2 and the shell-and-tube heat exchanger 3 are connected or welded through flanges, air-equalizing ring plates 4 are arranged on two end faces of the high temperature radiation heat exchange section 1 and the low temperature radiation heat exchange section 2, uniformly distributed through holes are arranged on the air-equalizing ring plates 4, high temperature flue gas enters from the high temperature radiation heat exchange section 1 and exits from the shell-and-tube heat exchanger 3, flue gas channels 5 and heat exchange channels are arranged in the high temperature radiation heat exchange section 1 and the low temperature radiation heat exchange section 2, through holes are arranged on the air-equalizing ring plates 4, wherein the flue gas channels 5 between the high temperature radiation heat exchange section 1 and the low temperature radiation heat exchange section 2 are communicated with each other, and the heat exchange channels between the high temperature radiation heat exchange section 1 and the low temperature radiation heat exchange section 2 are communicated with each other, and the flue gas channel 5 and the heat exchange channel are mutually separated into independent channels, and the air outlet of the shell-and-tube heat exchanger 3 is communicated with the heat exchange channel.

In order to increase the ability of the high-temperature radiation heat exchange section 1 to bear high temperature, in the embodiment, the high-temperature radiation heat exchange section 1 is designed to include a first inner cylinder 11 and a first outer cylinder 12, a first heat exchange channel 14 is provided between the first inner cylinder 11 and the first outer cylinder 12, a hot air outlet 15 is provided on a side wall of the first outer cylinder 12, and a first fin 13 is provided on an outer wall of the first inner cylinder 11 between the first inner cylinder 11 and the first outer cylinder 12. In order to improve the thermal stress of the high-temperature radiation heat exchange section 1 in this embodiment, two ends of the first fin 13 near one end of the smoke inlet of this embodiment respectively abut against the first inner cylinder 11 and the first outer cylinder 12, and the first inner cylinder 11 is supported by the first fin 13, so that the first inner cylinder is not easy to deform and has better thermal stress resistance. The fins are provided with gaps therebetween, which allows air to circulate.

In order to increase the ability of the low-temperature radiation heat exchange section 2 to bear high temperature, in this embodiment, the low-temperature radiation heat exchange section 2 is designed to include a second inner cylinder 21 and a second outer cylinder 22, a second heat exchange channel 24 is provided between the second inner cylinder 21 and the second outer cylinder 22, a second fin 23 is provided on the outer wall of the second inner cylinder 21 between the second inner cylinder 21 and the second outer cylinder 22, and the second heat exchange channel 24 is communicated with the first heat exchange channel 14.

The shell-and-tube heat exchanger 3 in this embodiment includes flue gas chamber 31, advances the mouth, goes out the mouth 34, advances the mouth and communicates with the flue gas passageway 5 of low temperature radiation heat transfer section 2, wherein sets up the heat exchange tube 32 that runs through flue gas chamber 31 in the flue gas chamber 31, outside the heat exchange tube 32 both ends all extended to flue gas chamber 31, be equipped with the daughter pipe 33 that runs through heat exchange tube 32 setting in the heat exchange tube 32, the flue gas passes through from the daughter pipe 33, the air intake is connected to heat exchange tube 32 one end, the heat transfer passageway of low temperature radiation heat transfer section 2 is connected to one end.

In order to facilitate cleaning of the flue gas chamber 31, in the embodiment, an ash removing door 35 is disposed on one side of the flue gas chamber 31 to facilitate cleaning of the interior of the flue gas chamber 31. The smoke inlet and the smoke outlet 34 are arranged in a staggered way, and an S-shaped flue is arranged in the smoke chamber 31. The S-shaped flue enables high-temperature flue gas to pass through more sub-pipes 33, contact of the flue gas is increased, and therefore the flue gas can be cooled better.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that simple modifications and substitutions by those skilled in the art are within the scope of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a split type high temperature heat exchanger, includes high temperature radiation heat transfer section, low temperature radiation heat transfer section and the shell and tube heat exchanger that the order is connected, and the high temperature flue gas gets into from high temperature radiation heat transfer section, goes out its characterized in that from the shell and tube heat exchanger: the high-temperature radiation heat exchange section and the low-temperature radiation heat exchange section are internally provided with a flue gas channel and a heat exchange channel, wherein the flue gas channels between the high-temperature radiation heat exchange section and the low-temperature radiation heat exchange section are communicated with each other, the heat exchange channels between the high-temperature radiation heat exchange section and the low-temperature radiation heat exchange section are communicated with each other, the flue gas channel and the heat exchange channel are mutually separated into independent channels, and an air outlet of the shell-and-tube heat exchanger is communicated with the heat exchange channel.

2. A split high temperature heat exchanger as claimed in claim 1, wherein: the high-temperature radiation heat exchange section comprises a first inner cylinder and a first outer cylinder, a first heat exchange channel is arranged between the first inner cylinder and the first outer cylinder, and a first fin is arranged on the outer wall of the first inner cylinder between the first inner cylinder and the first outer cylinder.

3. A split high temperature heat exchanger as claimed in claim 2, wherein: the two ends of the first fin close to one end of the smoke inlet are respectively abutted against the first inner cylinder and the first outer cylinder.

4. A split high temperature heat exchanger as claimed in claim 1, wherein: the low-temperature radiation heat exchange section comprises a second inner cylinder and a second outer cylinder, a second heat exchange channel is arranged between the second inner cylinder and the second outer cylinder, second fins are arranged on the outer wall of the second inner cylinder between the second inner cylinder and the second outer cylinder, and the second heat exchange channel is communicated with the first heat exchange channel.

5. A split high temperature heat exchanger as claimed in claim 1, wherein: and a first air-equalizing ring plate is arranged between the connecting ends of the high-temperature radiation heat exchange section and the low-temperature radiation heat exchange section, and uniformly distributed through holes are formed in the first air-equalizing ring plate.

6. A split high temperature heat exchanger as claimed in claim 1, wherein: and a second air equalizing ring plate is arranged between the low-temperature radiation heat exchange section and the connecting end of the shell-and-tube heat exchanger, and through holes are uniformly distributed on the second air equalizing ring plate.

7. A split high temperature heat exchanger as claimed in any one of claims 1 to 6, wherein: the shell-and-tube heat exchanger include the flue gas chamber, advance the mouth, go out the mouth, advance the flue gas passageway intercommunication of mouth and low temperature radiation heat transfer section, wherein set up the heat exchange tube that runs through the flue gas chamber in the flue gas chamber, the heat exchange tube both ends all extend to the flue gas outdoor, be equipped with the sub-pipe that runs through the heat exchange tube setting in the heat exchange tube, the flue gas passes through from the sub-pipe, the air intake is connected to heat exchange tube one end, the heat transfer passageway of low temperature radiation heat transfer section is connected to one end.

8. A split high temperature heat exchanger as claimed in claim 7, wherein: and an ash removal door convenient for cleaning the interior of the flue gas chamber is arranged on one side of the flue gas chamber.

9. A split high temperature heat exchanger as claimed in claim 8, wherein: the smoke inlet and the smoke outlet are arranged in a staggered mode, and an S-shaped flue is arranged in the smoke chamber.