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Aggregate heat exchange system and method

A heat exchange system and aggregate technology, applied in indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of energy loss, cooling water temperature cannot be lower than 0 ℃, etc., to achieve increased contact area, efficient heating, The effect of improving processing efficiency

Pending Publication Date: 2021-04-06
CHINA GEZHOUBA (GRP) FIRST ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an aggregate heat exchange system and heat exchange method, which can solve the energy loss problem of cooling water as a refrigerant, and at the same time solve the problem that the temperature of cooling water cannot be lower than 0°C, and realize More efficient aggregate heat transfer process

Method used

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  • Aggregate heat exchange system and method
  • Aggregate heat exchange system and method
  • Aggregate heat exchange system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0056] An aggregate heat exchange system, comprising an aggregate heat exchange device 4, the aggregate heat exchange device 4 is connected to a first main pipe 19 and a second main pipe 20 at positions close to the upper and lower ends respectively, the first main pipe 19 and the second main pipeline 20 are all connected to the air-cooled condenser 2;

[0057] The first main pipeline 19 is provided with a compressor 1, the first main pipeline 19 between the compressor 1 and the air-cooled condenser 2 is provided with a second stop valve 8, and the compressor 1 and the aggregate heat exchange device 4 is provided with a fourth cut-off valve 10 on the first main pipe 19;

[0058] The second main pipeline 20 is provided with a thermal expansion valve 3 , and the second main pipeline 20 between the thermal expansion valve 3 and the air-cooled condenser 2 is provided with a sixth shut-off valve 12 .

[0059] In a preferred solution, the first main pipeline 19 is connected in para...

Embodiment 2

[0065] On the basis of Embodiment 1, the specific structure of the aggregate heat exchange device 4 is as follows:

[0066] The top of the aggregate heat exchange device 4 is provided with an inlet for aggregate input, the bottom of the aggregate heat exchange device 4 is provided with an outlet for aggregate output, and the bottom of the aggregate heat exchange device 4 is provided with a conveyor belt 5 for conveying A buffer bin 6 is provided below the output end of the material belt 5 .

[0067] In a preferred solution, the aggregate heat exchange device 4 is provided with a plurality of horizontal separation mechanisms;

[0068] The single separation mechanism includes a fixed partition 14 fixed in the aggregate heat exchange device 4, a movable partition 13 is arranged above the fixed partition 14, and an extension plate 15 is arranged at one end of the movable partition 13, and the extension plate 15 is formed by The hole opened on the side wall of the aggregate heat e...

Embodiment 3

[0072] On the basis of embodiment 2, the concrete structure of separation mechanism is as follows:

[0073] Including the movable partition 13 and the fixed partition 14, the movable partition 13 and the fixed partition 14 are both "V" shaped plates, the obtuse angles of the movable partition 13 and the fixed partition 14 are set downwards, and the fixed partition The board 14 is provided with a plurality of ventilation holes 142 .

[0074] In a preferred solution, a first gap 131 and a second gap 141 are respectively provided on both sides of the movable partition 13 and the fixed partition 14, and the first gap 131 and the second gap 141 are connected between the movable partition 13 and the fixed partition. The two side parts of 14 form a plurality of strip parts.

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Abstract

The invention discloses an aggregate heat exchange system and method. The aggregate heat exchange system comprises an aggregate heat exchange device, wherein the parts, close to the upper end and the lower end, of the aggregate heat exchange device are connected with a first main pipeline and a second main pipeline correspondingly, and the first main pipeline and the second main pipeline are both connected to a condenser; a compressor is arranged on the first main pipeline, a second stop valve is arranged on the first main pipeline between the compressor and the condenser, and a fourth stop valve is arranged on the first main pipeline between the compressor and the aggregate heat exchange device; and a thermostatic expansion valve is arranged on the second main pipeline, and a sixth stop valve is arranged on the second main pipeline between the thermostatic expansion valve and the condenser. By adopting the structure, a refrigerant absorbs external heat in the heat exchange device to be heated and converted into steam, heat is released in the condenser for cooling and liquefying, the fine aggregate is pre-cooled during heat absorption, and the fine aggregate is heated during heat release. The problem of energy loss existing when cooling water serves as a refrigerant is solved, meanwhile, the problem that the temperature of the cooling water cannot be lower than 0 DEG C is solved, and the more efficient aggregate heat exchange treatment process is achieved.

Description

technical field [0001] The invention relates to the technical field of concrete raw material pretreatment, in particular to an aggregate heat exchange system and a heat exchange method. Background technique [0002] Aggregate precooling and heating is a pretreatment process for aggregates made according to the quality control requirements of concrete production and the actual construction environment. The main process of the existing fine aggregate precooling and heating process is as follows: [0003] Cold water pre-cooling fine aggregate process, cooling water is provided by the refrigeration host, the evaporation temperature of the refrigeration host is only -3°C and the cooling medium is transported by a water pump; a pool and a water pump are required, the machine room occupies a large area and the investment cost is high. [0004] The refrigeration unit prepares cooling water as a circulating refrigerant, and the refrigerant releases heat to cool down; when pre-cooling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D21/00
CPCF28D21/00F28D2021/0068
Inventor 李新明熊建武钟传阳武俊李玉宋学坡黄远华杨建峰张建权尤杰
Owner CHINA GEZHOUBA (GRP) FIRST ENG CO LTD
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