Compound type heat pump unit and concentrated heating system

A heat pump unit and composite technology, which are applied in hot water central heating systems, heating systems, household heating and other directions, can solve the problems of insufficient primary water inlet lift and increased lift, and achieve a reduction in primary water pressure drop, The effect of increasing the flow velocity in the pipe and reducing the primary water pressure drop

Active Publication Date: 2015-07-08
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the return temperature of the primary water, the composite heat exchange unit proposed in the Chinese patent application No. 201310681969.5 causes the lift of the primary water to further increase, because the lift of the primary water inlet is provided by the central heating network ( Generally within 10m), there is often a situation where the primary water inlet lift is insufficient, and it is necessary to add another water pump on the primary side to increase the primary water lift

Method used

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  • Compound type heat pump unit and concentrated heating system
  • Compound type heat pump unit and concentrated heating system
  • Compound type heat pump unit and concentrated heating system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0050] figure 1 It is a schematic diagram of the principle of the composite heat pump unit according to the first embodiment of the present invention.

[0051] Such as figure 1 As shown, the composite heat pump unit of the first embodiment includes an absorption heat pump 10 , a compression refrigerator 20 , a heat exchanger 30 , a primary side pipeline 40 and a secondary side pipeline 50 .

[0052] The absorption heat pump 10 includes a generator 11 , an absorption heat pump condenser 12 , an absorber 13 and an absorption heat pump evaporator 14 .

[0053] The compression refrigerator 20 includes a compression refrigerator evaporator 21 and a compression refrigerator condenser 22 .

[0054] The primary side pipeline 40 is connected in series with the generator 11, heat exchanger 30 and compression refrigerator evaporator 21 along the water flow direction, and the primary side pipeline 40 is only connected with the generator 11 and the absorption heat pump evaporator 14. De...

no. 2 example

[0065] figure 2 It is a schematic diagram of the principle of the composite heat pump unit according to the second embodiment of the present invention.

[0066] Such as figure 2 As shown, the difference between the second embodiment and the first embodiment is that the second end of the first branch pipe 51 located at the secondary water outlet end of the condenser 22 of the compression refrigerating machine and the second end of the first branch pipe 51 located at the secondary water outlet end of the heat exchanger 30 The second ends of the second branch pipes 52 respectively output secondary water outlets. Therefore, the secondary water outlet at the second end of the second branch pipe 52 and the secondary water outlet at the second end of the first branch pipe 51 are respectively used to provide heat for the user.

[0067] The flow process of primary water and secondary water in the second embodiment will be described below.

[0068] The primary water first enters th...

no. 3 example

[0073] image 3 It is a schematic diagram of the principle of the composite heat pump unit according to the third embodiment of the present invention.

[0074] Such as image 3 As shown, the composite heat pump unit of the third embodiment includes an absorption heat pump 10 , a compression refrigerator 20 , a heat exchanger 30 , a primary side pipeline 40 and a secondary side pipeline 50 .

[0075] The absorption heat pump 10 includes a generator 11 , an absorption heat pump condenser 12 , an absorber 13 and an absorption heat pump evaporator 14 .

[0076] The compression refrigerator 20 includes a compression refrigerator evaporator 21 and a compression refrigerator condenser 22 .

[0077] The primary side pipeline 40 is connected in series with the generator 11, heat exchanger 30 and compression refrigerator evaporator 21 along the water flow direction, and the primary side pipeline 40 is only connected with the generator 11 and the absorption heat pump evaporator 14. De...

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Abstract

The invention discloses a compound type heat pump unit and a concentrated heating system. The compound type heat pump unit comprises an absorption type heat pump, a compression type refrigerator, a heat exchanger, a primary side pipeline and a secondary side pipeline. The absorption type heat pump comprises a generator, an absorption type heat pump condenser, an absorber and an absorption type heat pump evaporator. The compression type refrigerator comprises a compression type refrigerator evaporator and a compression type refrigerator condenser, the primary side pipeline is sequentially connected with the generator, the heat exchanger and the compression type refrigerator evaporator in series in the water flowing direction, and the primary side pipeline is only connected with the generator and a generator in the absorption heat pump evaporator. According to the compound type heat pump unit, primary water pressure drop is reduced, and meanwhile the low primary water return temperature can be ensured.

Description

technical field [0001] The invention relates to the field of heating equipment, in particular to a composite heat pump unit and a centralized heating system. Background technique [0002] The central heating system is widely used in heating in cities and towns in northern my country. Taking the central heating system that uses the heat of the combined heat and power system for heating as an example, reducing the primary water return temperature of the central heating system is conducive to recovering the condensation heat at the condenser as the heat source in the combined heat and power system. The return water is heated to increase the temperature, which can improve the efficiency of the combined heat and power system. [0003] The Chinese patent with the patent number ZL200810101065.X and the title of the invention "a central heating system with a large temperature difference" proposes a central heating system with a large temperature difference. Absorption heat pump uni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/18F25B25/02
Inventor 王娟王升陆超刘华张治平
Owner GREE ELECTRIC APPLIANCES INC
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