CN212030285U - Gas-gas heat exchange system - Google Patents
Gas-gas heat exchange system Download PDFInfo
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- CN212030285U CN212030285U CN202020515120.6U CN202020515120U CN212030285U CN 212030285 U CN212030285 U CN 212030285U CN 202020515120 U CN202020515120 U CN 202020515120U CN 212030285 U CN212030285 U CN 212030285U
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Abstract
The utility model discloses a gas-gas heat exchange system, which relates to the field of gas heat exchange and mainly comprises a gas-gas heat exchanger, wherein the gas-gas heat exchanger consists of four interfaces and a heat exchange cavity; a plurality of clapboards are radially distributed in the heat exchange cavity and used for isolating clean gas and waste gas; the dehumidifier for drying the compressed air is connected with a clean cold air inlet A of the air-air heat exchanger, the heater for heating the air is connected behind a clean hot air outlet B of the air-air heat exchanger, the rear of the heater is connected with an air inlet of the drying tower, and an air outlet of the drying tower is connected with a waste gas hot air inlet C of the air-air heat exchanger. The utility model has the advantages that: the heat exchanger can realize the complete isolation of waste gas and clean air; the waste gas of the device is from top to bottom, and dust and particles are automatically prevented from being accumulated in the heat exchanger; the heat transfer is carried out efficiently.
Description
Technical Field
The utility model relates to a field of gaseous heat exchange, concretely relates to gas-gas heat transfer system.
Background
In industrial production, a large amount of waste gas with high temperature is generated. In general, the heat in the exhaust gas is directly discharged to the atmosphere without being recovered, which results in waste of energy.
The heat exchanger is energy-saving equipment for realizing heat transfer between materials between two or more than two fluids with different temperatures; when the heat exchanger works, heat is transferred to the fluid with lower temperature from the fluid with higher temperature, so that the temperature of the fluid reaches the index specified by the process to meet the requirement of process conditions, and meanwhile, the heat exchanger is also one of main equipment for improving the energy utilization rate. The heat exchanger industry relates to more than 30 industries such as heating ventilation, pressure vessels, reclaimed water treatment equipment, chemical industry, petroleum and the like, and an industrial chain is formed mutually.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide a gas-gas heat transfer system, have the advantage that the heat transfer is effectual, waste gas heat utilization rate is high.
The purpose of the utility model is accomplished through following technical scheme: the gas-gas heat exchange system mainly comprises a gas-gas heat exchanger, wherein the gas-gas heat exchanger consists of four interfaces and a heat exchange cavity, a clean cold gas inlet A and a clean hot gas outlet B are arranged at the two axial ends of the gas-gas heat exchanger, and a waste gas hot gas inlet C and a waste gas cold gas outlet D are arranged at the two radial ends of the gas-gas heat exchanger; a plurality of clapboards are radially distributed in the heat exchange cavity for isolating clean gas and waste gas, every two clapboards form a group and communicate a waste gas hot gas inlet C with a waste gas cold gas outlet D for the waste gas to pass through, a plurality of through holes are formed in the surface of each clapboard for axially installing a heat exchange tube for the clean gas to pass through, a buffer cavity is formed between every two adjacent clapboards at a certain interval, and the gas is ensured to be fully exchanged; the dehumidifier for drying the compressed air is connected with a clean cold air inlet A of the air-air heat exchanger, the heater for heating the air is connected behind a clean hot air outlet B of the air-air heat exchanger, the rear of the heater is connected with an air inlet of the drying tower, and an air outlet of the drying tower is connected with a waste gas hot air inlet C of the air-air heat exchanger.
As a preferable technical scheme, the heat exchange tubes are distributed on each group of partition plates in a staggered manner, and the heat exchange tubes on two adjacent groups of partition plates are distributed in a staggered manner.
Preferably, the waste gas hot gas inlet C is positioned above the waste gas cold gas outlet D.
The utility model has the advantages that:
1. the heat exchanger can realize the complete isolation of waste gas and clean air;
2. the waste gas of the device is from top to bottom, and dust and particles are automatically prevented from being accumulated in the heat exchanger;
3. the heat transfer is carried out efficiently.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a gas-gas heat exchanger (taking three groups of baffles as an example).
Fig. 3 is a schematic diagram of the flow path of the clean gas in the heat exchange chamber.
Fig. 4 is a structural side view of the separator.
Fig. 5 is a schematic view of the flow path of the exhaust gas in the heat exchange chamber.
Description of reference numerals: the device comprises a dehumidifier 1, a gas-gas heat exchanger 2, a heat exchange cavity 2-1, a partition plate 2-2, a heat exchange tube 2-3, a buffer cavity 2-4, a heater 3 and a drying tower 4.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in the attached drawings 1 and 2, the gas-gas heat exchange system mainly comprises a gas-gas heat exchanger 2, wherein the gas-gas heat exchanger 2 consists of four connectors and a heat exchange cavity 2-1, a clean cold gas inlet A and a clean hot gas outlet B are arranged at two axial ends of the gas-gas heat exchanger 2, and a waste gas hot gas inlet C and a waste gas cold gas outlet D are arranged at two radial ends of the gas-gas heat exchanger 2; six partition plates 2-2 are radially distributed in the heat exchange cavity 2-1 and used for isolating clean gas and waste gas, every two partition plates 2-2 form a group and communicate a waste gas hot gas inlet C with a waste gas cold gas outlet D (see figure 2) for the waste gas to pass through, a plurality of through holes are formed in the surface of each partition plate 2-2 and used for axially installing heat exchange tubes 2-3 for the clean gas to pass through, and a buffer cavity 2-4 is formed at a certain interval between every two adjacent partition plates to ensure the sufficient heat exchange between the gases; the dehumidifier 1 for drying compressed air is connected with a clean cold air inlet A of the air-air heat exchanger 2, the heater 3 for heating air is connected behind a clean hot air outlet B of the air-air heat exchanger 2, the rear of the heater 3 is connected with an air inlet of the drying tower 4, and an air outlet of the drying tower 4 is connected with a waste gas hot air inlet C of the air-air heat exchanger 2. As shown in fig. 3 and 4, the heat exchange tubes 2-3 are distributed on each group of the partition plates 2-2 in a staggered manner, and the heat exchange tubes 2-3 on two adjacent groups of the partition plates 2-2 are distributed in a staggered manner. The waste gas hot gas inlet C is positioned above the waste gas cold gas outlet D, so that dust and particles in the waste gas are prevented from being accumulated in the gas-gas heat exchanger 2.
The utility model discloses a working process: after being treated by a dehumidifier 1, compressed air at 25 ℃ forms dry air at 25 ℃ and is directly introduced into a clean cold air inlet A of an air-air heat exchanger 2, the clean cold air primarily exchanges heat with waste gas through a heat exchange tube 2-3 and enters a buffer cavity 2-4 for further heat exchange, the temperature is gradually increased to 90 ℃, the dry air flows out from a clean hot air outlet B (the flow path is shown in figure 3), and then the dry air is introduced into a heater 3 for further heating to 170 ℃ and flows into a drying tower 4 for reaction; the waste gas generated after the reaction still has a high temperature of 165 ℃, but also contains impurities such as moisture, dust particles and the like, the hot waste gas is introduced into a waste gas hot gas inlet C above the gas-gas heat exchanger 2, the hot waste gas passes through a gap between the two partition plates 2-2 (the flow path is shown in figure 5), and the flow velocity is slowed down by the heat exchange tubes 2-3 which are axially distributed, so that sufficient heat exchange is facilitated, and finally the waste gas is discharged from a waste gas cold gas outlet D below the gas-gas heat exchanger 2.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (3)
1. A gas-gas heat exchange system is characterized in that: the device mainly comprises a gas-gas heat exchanger (2), wherein the gas-gas heat exchanger (2) consists of four connectors and a heat exchange cavity (2-1), a clean cold gas inlet A and a clean hot gas outlet B are arranged at two axial ends of the gas-gas heat exchanger (2), and a waste gas hot gas inlet C and a waste gas cold gas outlet D are arranged at two radial ends of the gas-gas heat exchanger (2); a plurality of partition plates (2-2) are radially distributed in the heat exchange cavity (2-1) and used for isolating clean gas and waste gas, every two partition plates (2-2) form a group and communicate a waste gas hot gas inlet C with a waste gas cold gas outlet D for the waste gas to pass through, a plurality of through holes are formed in the surface of each partition plate (2-2) and used for axially installing heat exchange tubes (2-3) for the clean gas to pass through, and a buffer cavity (2-4) is formed between every two adjacent partition plates at a certain interval to ensure that the gas is fully exchanged with heat; a dehumidifier (1) for drying compressed air is connected with a clean cold air inlet A of an air-air heat exchanger (2), a heater (3) for heating air is connected behind a clean hot air outlet B of the air-air heat exchanger (2), the rear of the heater (3) is connected with an air inlet of a drying tower (4), and an air outlet of the drying tower (4) is connected with a waste gas hot air inlet C of the air-air heat exchanger (2).
2. The gas-gas heat exchange system of claim 1, wherein: the heat exchange tubes (2-3) are distributed on each group of partition plates (2-2) in a staggered manner, and the heat exchange tubes (2-3) on two adjacent groups of partition plates (2-2) are distributed in a staggered manner.
3. The gas-gas heat exchange system of claim 1, wherein: and the waste gas hot gas inlet C is positioned above the waste gas cold gas outlet D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515120.6U CN212030285U (en) | 2020-04-10 | 2020-04-10 | Gas-gas heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515120.6U CN212030285U (en) | 2020-04-10 | 2020-04-10 | Gas-gas heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212030285U true CN212030285U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020515120.6U Active CN212030285U (en) | 2020-04-10 | 2020-04-10 | Gas-gas heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212030285U (en) |
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2020
- 2020-04-10 CN CN202020515120.6U patent/CN212030285U/en active Active
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