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Parallelly-arranged double-circulating heat pump water heater

A technology of heat pump water heater and double circulation, which is applied in the direction of fluid heater, lighting and heating equipment, etc., and can solve the problems of stable operation risk of the system

Inactive Publication Date: 2008-10-08
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the area of ​​the two compressors needs to match both when a single compressor is running and when multiple compressors are running together, in actual operation, it will bring either a single compressor running, or multiple compressors When the compressor is running, the working conditions of the system may not be suitable for operation, which brings certain risks to the stable operation of the system

Method used

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  • Parallelly-arranged double-circulating heat pump water heater
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  • Parallelly-arranged double-circulating heat pump water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1, see figure 1 , figure 2 . The parallel double-cycle heat pump water heater of the present invention includes two sets of vapor compression heat pump devices, the outlet of the first compressor 20 is connected to the first radiator 60 through a pipeline 51 , and the inlet of the first compressor 20 is connected to the first evaporator 40 . The first radiator 60 is placed in the water tank 10, the first radiator 60 communicates with the first throttling element 30 through the pipeline 53, and connects the first evaporator 40 through the pipeline 55, and the first evaporator 40 passes through the pipeline 57 Connected to the first compressor 20. The outlet end of the second compressor 22 is connected to the second radiator 61 through the pipeline 52 , and the inlet end of the second compressor 22 is connected to the second evaporator 41 . The second radiator 61 is placed in the water tank 10, the second radiator 61 communicates with the second throttling ele...

Embodiment 2

[0022] Example 2, see image 3 , Figure 4 . The parallel double-cycle heat pump water heater of the present invention includes two sets of vapor compression heat pump devices, the two sets of devices act in parallel, the outlet end of the first compressor 20 is connected to the first radiator 60 through a pipeline 51, and the inlet end of the first compressor 20 Connect the first evaporator 40, the outlet end of the second compressor 22 is connected to the second radiator 61 through the pipeline 52, the inlet end of the second compressor 22 is connected to the second evaporator 41, the first radiator 60, the second radiator The radiators 61 are all placed in the indirect heat exchanger 90, the water tank 10 forms a closed circulating water circuit through the indirect heat exchanger 90, the circulating water pump 80, and the pipelines 101, 102, 103, and the first radiator 60 and the second radiator 61 are in the The indirect heat exchanger 90 realizes heat exchange with the...

Embodiment 3

[0025] Example 3, see Figure 5 , Figure 6 . The parallel double-cycle heat pump water heater of the present invention includes two groups of vapor compression devices, and the two groups of devices are connected in parallel. The end is connected to the first evaporator 40, the outlet end of the second compressor 22 is connected to the second radiator 61 through the pipeline 52, the inlet end of the second compressor 22 is connected to the second evaporator 41, the first radiator 60 and the second The radiators 61 are all placed in the water tank 10, and the tap water passes through the circulating radiator 63 to exchange heat with the water in the water tank 10. The first radiator 60 communicates with the first throttling element 30 through the pipeline 53, and through the pipeline 55 The first evaporator 40 is connected, and the first evaporator 40 is connected with the first compressor 20 through a pipeline 57 . The second radiator 61 communicates with the second thrott...

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Abstract

The present invention provides a parallelly-arranged double-circulation heat pump water heater apparatus, two group of vapor compression heat pump apparatus, each group of vapor compression heat pump apparatus includes compressors, heat radiators, water tanks, throttling elements, evaporators independently, the heat radiators are in parallel connection in the water tank, each exit ends of the compressor independently connect to heat radiators of each heat pumps, each inlet ends of the compressor independently connect to evaporators of each heat pumps; each heat radiators are internally arranged in the water tank to connect with throttling elements independently, the throttling elements communicate with each evaporators by pipe lines. Each independent vapor compression heat pump apparatus and heat exchangers, compressors and throttling elements have good match, hot water can be produced by starting a group of or two groups of vapor compression heat pump apparatus meanwhile, thereby manually controlling heat quantity and noise of the heat pump.

Description

technical field [0001] The invention relates to a vapor compression heat pump hot water system, in particular to a parallel double-cycle heat pump water heater which can use outdoor or indoor air sources as heat sources for heat pump water heaters. Background technique [0002] In the existing vapor compression air source heat pump water heater heat pump cycle, the working fluid is compressed by the compressor, discharged into the radiator by the compressor, releases heat to the high temperature heat source (water) and condenses, and then passes through the throttling element (such as Capillary, expansion valve) are throttled, the pressure and temperature of the working medium are reduced, and then enter the evaporator, absorb heat from the low-temperature heat source (air) and evaporate, and finally re-enter the compressor to be compressed to complete a complete cycle. [0003] In the prior art, vapor compression air source heat pump water heaters have been commercialized. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H4/02
Inventor 邓建强强科张早校
Owner XI AN JIAOTONG UNIV
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