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Multi-source cascade heat transfer method

A cascaded heat exchange and heat exchanger technology, which is applied in heating methods, heat pumps, household heating, etc., can solve problems such as poor comfort, high energy consumption, and insufficient use of natural cold sources, so as to improve the efficiency of the grading system and fully Utilize and reduce the effect of supply air temperature difference

Active Publication Date: 2021-06-25
HUAXIN CONSULTATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of high energy consumption, poor comfort, and insufficient utilization of natural cold sources that occur when air-conditioning products or air-conditioning systems in the prior art use a single constant cold source or heat source temperature, and provide a multi- Source cascade heat transfer method

Method used

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  • Multi-source cascade heat transfer method

Examples

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Effect test

Embodiment 1

[0029] Example 1: Multi-source Cooling Heating System for Water by Medium

[0030] Such as figure 1 As shown, the single-stage cooling heat exchange system is composed of a refrigeration unit 1-1, a heat exchanger 1-2, a fan 2 and a casing 3, and the heat exchange area of ​​the heat exchanger 1-2 is f, and the heat exchange amount is Q. , The air volume of mass M is powered by the temperature value T 1 Cool to temperature value t 2 Assume that T 1 -T 2 = 10 ° C, T 1 = 32 ° C, cold source medium temperature T w1 = 12 ° C, air treatment process figure 2 As shown, the air is cooled to the status point 2 at a certain time t in the state point 1. The mass flow of the cold source medium is G.

[0031] In order to improve the energy saving efficiency of the system, reduce energy consumption, divide the single-stage cooling heat transfer system into a 3-stage multi-source cooling heat exchange system, total heat transfer Q, the air volume M is unchanged, eliminating the level 1 heat excha...

Embodiment 2

[0039] Example 2: Multi-source step heating heat exchange system for use using media

[0040] The single-stage heating heat exchange system is the same as the single-stage cooling heat exchange system. figure 1 As shown, the single-stage heating heat exchange system is composed of a heating unit 1-1, a heat exchanger 1-2, a fan 2, and a box body 3, and the heat exchange area of ​​the heat exchanger 1-2 is f, and the heat exchange amount is Q, the air volume of mass M is passed from the temperature value T 1 Heat to the temperature value T 2 Assume that T 2 -T 1 = 10 ° C, T 1 = 20 ° C, T R1 = 45 ° C, air treatment process Figure 6 As shown, the air is heated to state points 2 at a certain time t in the state point 1. The mass flow of the heat source medium is G.

[0041] In order to improve the energy saving efficiency of the system, reduce energy consumption, divide the single-stage heating heat exchange system into a 3-stage multi-source strata heating heat exchange system, total...

Embodiment 3

[0048] Example 3: Dual source step heat exchange system for use in the use of media

[0049] Single-stage cooling system such as figure 1 As shown, the system is composed of a refrigerator group 1-1, a heat exchanger 1-2, a fan 2, and a box body 3, and the heat exchange area of ​​the heat exchanger 1-2 is f, and the cooling amount is Q, and the mass is M. The air volume is from the temperature value T 1 Cool to temperature value t 2 Assume that T 1 -T 2 = 10 ° C, T 1 = 32 ° C, T w1 = 12 ° C, air treatment process figure 2 As shown, the air is cooled to the status point 2 at a certain time t in the state point 1. The mass flow of the cold source medium is G.

[0050] In order to improve the energy efficiency of the system, reduce energy consumption, divide the single-stage cooling system into a secondary step cooling and heat exchange system, total heat transfer Q, the air volume M is unchanged, the second level of water supply is g, the second level heat transfer The heat transfer...

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Abstract

The invention discloses a multi-source cascade heat exchange method, which includes the following steps: defining the medium that needs to be cooled or heated as the use medium, calling the machine that can provide low-temperature cold source medium as a refrigeration unit, and defining the machine that can provide high-temperature heat source medium The machine is a heating unit. The low-temperature cold source medium or high-temperature heat source medium is collectively referred to as the source medium. The source medium and the used medium exchange heat through the heat exchanger. The refrigeration unit or heating unit, the corresponding heat exchanger and the refrigeration unit Or the pipeline connecting the heating unit and the heat exchanger is called the heat exchange unit; the single-stage heat exchange system, when cooling, the refrigeration unit provides a fixed temperature T W1 Or a fixed temperature T provided by the heating unit R1 , The source medium with a flow rate of G passes through a single-stage heat exchanger, and the temperature of the used medium is changed from T 1 Process to target temperature T 2 , the heat exchanged is Q; the present invention has the characteristics that the efficiency of the grading system of increasing the temperature of the cold source or decreasing the temperature of the heat source is improved, and the comfort of the human body is improved.

Description

Technical field [0001] The present invention relates to the technical field of air conditioning units or air conditioning systems, and more particularly to a multi-source rail heat exchange method. Background technique [0002] The existing air conditioning unit or air conditioning system is a single constant cold source or heat source temperature. For example, the water supply temperature of the civil air conditioning system is generally 7 ° C, the returns temperature is 12 ° C; the water supply temperature of the data center is generally 12 At ° C, the returning temperature is 18 ° C; the temperature of the civil air-conditioned heating is 45 ° C, and the return water is 40 ° C. Although some scholars currently study the treatment of new winds for new winds, there is no specific method, and there is no response to the change of cold and heat source temperature changes with outdoor temperature changes. For example, in the autumn transition time, the heat is hot, and there is no ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F5/00F24F7/007F24F11/47F24F11/64F24F11/80F24F13/30F25B30/02
CPCF24F5/0003F24F7/007F24F13/30F25B30/02F24F11/47F24F11/64F24F11/80
Inventor 胡曙波
Owner HUAXIN CONSULTATING CO LTD
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