Double-source heat pump suitable for bathing pool waste heat stepwise recycling

A dual-source heat pump, cascade recovery technology, applied in heat pump, heat transfer modification, heat exchange equipment and other directions, can solve problems such as waste heat energy waste, improve heat exchange capacity, facilitate assembly and fixation, and improve the effect of turbulent flow

Inactive Publication Date: 2018-12-11
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the above technical problems, the present invention provides a dual-source heat pump suitable for cascaded recovery and utilization of waste heat in baths. The heat pump unit is used to recover low-grade waste heat, which solves the technical problem of waste heat energy waste

Method used

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  • Double-source heat pump suitable for bathing pool waste heat stepwise recycling
  • Double-source heat pump suitable for bathing pool waste heat stepwise recycling
  • Double-source heat pump suitable for bathing pool waste heat stepwise recycling

Examples

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Embodiment 1

[0035] Such as Figure 1-8 As shown, a dual-source heat pump suitable for cascade recovery and utilization of waste heat in baths includes an air source heat pump unit and a sewage source heat pump unit. The object of waste heat recovery in the bath is the waste heat of sewage. The upper heat exchange tube with high sewage temperature is connected to the sewage source heat pump unit, and the lower heat exchange tube with low sewage temperature is connected to the air source heat pump unit. The air source heat pump unit is a "Z"-shaped double-fold exhaust gas evaporator.

[0036] There are two operating modes of the system, as follows:

[0037] (1) Turn on the air source heat pump unit and the sewage source heat pump unit at the same time to prepare hot water in the bath area during the peak bathing period. The air source heat pump unit supplements the excess heat to the lower part of the sewage tank through the refrigerant. (2) Turn on the sewage source heat pump unit during...

Embodiment 2

[0045] The difference from Example 1 is that the height h of the fins is 12.7 mm, the length of the twisted band is 40% of the length of the round tube, and the sewage heat exchanger is made of a ceramic heat exchange plate added with a rare earth heat-conducting material and a sub-section made of a PPR pipe. It is assembled from water joints, water distribution pipes and water collection pipes; the heat exchange plate is a strip plate with 3 circular tubular flow channels and 2 partition ribs, and multiple heat exchange plates are connected in series through the water distribution joints at both ends to form a heat exchange plate Assemblies, according to actual needs, multiple heat exchange plate assemblies are sequentially connected in parallel through the water collection pipe and the water distribution pipe to form the whole sewage heat exchanger.

Embodiment 3

[0047] The difference from Example 1 is that the height h of the fins is 19.05mm, the length of the twisted band is 30% of the length of the round tube, and the sewage heat exchanger is made of glass heat exchange plates added with rare earth heat-conducting materials and UPVC pipes. It is assembled from water joints, water distribution pipes and water collection pipes; the heat exchange plate is a strip plate with 20 circular tubular flow channels and 19 partition ribs, and multiple heat exchange plates are connected in series through the water distribution joints at both ends to form a heat exchange plate Assemblies, according to actual needs, multiple heat exchange plate assemblies are sequentially connected in parallel through the water collection pipe and the water distribution pipe to form the whole sewage heat exchanger.

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Abstract

The invention relates to the technical field of waste heat recycling, and particularly relates to a double-source heat pump suitable for bathing pool waste heat stepwise recycling. The double-source heat pump comprises an air source heat pump unit and a sewage source heat pump unit. The object of bathing pool waste heat recycling is the waste heat of sewage. A heat exchange pipe of a sewage pool includes an upper part and a lower part, the upper part, with high-temperature sewage, of the heat exchange pipe is connected with the sewage source heat pump unit, and the lower part, with low-temperature sewage, of the heat exchange pipe is connected with the air source heat pump unit. The air source heat pump unit is a double-folded type exhaust gas evaporator. In the busy hours of bathing, theair source heat pump unit and the sewage source heat pump unit are started up at the same time to prepare bath area hot water. The air source heat pump unit supplements excess heat to the lower part of the sewage pool through coolants. In idle hours of bathing, the sewage source heat pump unit is started up, bathing hot water is prepared by utilizing the heat of sewage. A system supplements unutilized heat in the air source heat pump unit to the low-temperature area on the lower part of the sewage pool, and stepwise energy utilization is achieved.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery, in particular to a dual-source heat pump suitable for cascaded recovery and utilization of waste heat in bathing pools. Background technique [0002] With the improvement of people's living standards, bathing time and bathing water consumption have increased significantly. Bathing is an indispensable part of people's daily life, and there is a large amount of waste water and waste gas in the bathroom space. Public baths consume a lot of energy and generate a large proportion of waste heat. As a typical public place, public baths generate a large amount of waste water and waste gas, which are directly discharged, resulting in a large amount of waste heat loss. In recent years, energy consumption has been too fast, which is not conducive to increasing energy sources and reducing expenditures. Bathing wastewater / exhaust gas waste heat recovery has become one of the important means to so...

Claims

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Application Information

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IPC IPC(8): F25B30/06F25B39/02F28F13/12F28F21/02
CPCF25B30/06F25B39/02F28F13/12F28F21/02
Inventor 李慧星杨云龙冯国会黄凯良杨婉凝
Owner SHENYANG JIANZHU UNIVERSITY
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