Waste heat recovery type hot-water boiler device in bathroom

A hot water boiler and waste heat recovery technology, applied in the energy field, can solve the problem of low efficiency, and achieve the effects of reducing usage, reducing fuel usage, and being beneficial to environmental protection

Inactive Publication Date: 2009-09-02
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the inefficiency of the existing boilers for bathing hot water alone and the waste heat recovery of electric heat pumps, the present invention proposes ...

Method used

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  • Waste heat recovery type hot-water boiler device in bathroom
  • Waste heat recovery type hot-water boiler device in bathroom
  • Waste heat recovery type hot-water boiler device in bathroom

Examples

Experimental program
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Embodiment 1

[0019] figure 2 A waste heat recovery type bathroom hot water boiler device disclosed in the present invention is given, which includes a boiler 1, an absorption heat pump unit 3, a sewage heat exchanger 10, a tap water preheater 8, a circulation loop 9, and a hot water storage tank 17. Sewage pool 19, sewage filter 13, feed water pump 16, sewage pump 12, circulating water pump 7, boiler return water pump 2; the present invention mainly figure 1 A set of devices is added on the basis of figure 2 The part framed by the dotted line in the middle, the device has six ports that can be connected to external pipelines, which are respectively the outlet connection port 4 of the absorption heat pump unit generator, the inlet connection port 5 of the absorption heat pump unit generator, and the condensing port of the absorption heat pump unit. Device outlet connection port 6, tap water preheater inlet connection port 11, sewage heat exchanger inlet connection port 14, sewage heat ex...

Embodiment 2

[0021] image 3 It is a working principle diagram of using a waste heat recovery type bathroom hot water boiler device to transform the traditional boiler hot water supply system for bathing. in the right figure 1When the traditional boiler hot water supply system shown in the bath is transformed, a bypass pipeline is set between the outlet of the feed pump 16 and the boiler water inlet, and a first switching valve-20a is arranged on the bypass pipeline, and at the same time A pipeline is set between the outlet of the boiler and the inlet of the hot water storage tank 17, and a second switching valve-20b linked with the first switching valve-20a is arranged on the pipeline; A first switching valve 21a is provided on the pipeline between the inlet connection ports 11, and a second switching valve linked with the first switching valve 21a is set between the boiler outlet and the generator inlet connection port 5 in the absorption heat pump unit. Valve two 21b; a third switchin...

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Abstract

A waste heat recovery type hot-water boiler device in a bathroom comprises a boiler, an absorption type heat pump set, a sewage heat exchanger, a tap water preheater, a heat storage water tank, a sewage pool, a sewage filter, a water-feeding pump, a sewage pump, a circulating water pump and a boiler backwater pump. Water from a tap water pipeline is divided into two paths, wherein one path is normally supplied to the bathroom, and after being heated by the tap water preheater and the absorption type heat pump set, the other path is supplied as bath hot water; waste bath water collected by the sewage pool is discharged after heat exchange by the sewage heat exchanger; and circulating water in a water ring exchanges heat with the sewage in the sewage [heat] exchanger and flows through the tap water preheater and the absorption type heat pump set to exchange heat. The invention sufficiently utilizes the waste heat of waste bath water, reduces the fuel consumption, effectively utilizes primary energy sources, avoids wasting high-grade electric energy, is suitable for places needing hot bath water, such as hotels, schools, gymnasiums, hamams, and the like and belongs to the technical field of energy sources.

Description

technical field [0001] The invention relates to a hot water boiler heating system, in particular to a waste heat recovery type bathroom hot water boiler device, which is suitable for hotels, schools, gymnasiums, public bathhouses and other places that need to provide hot water for bathing, and belongs to the field of energy technology. Background technique [0002] At present, the hot water supply devices used in public baths are mainly small coal-fired boilers, and some oil-fired boilers and gas-fired boilers are used. They all heat tap water to a temperature of about 60°C, and then mix with tap water as hot water for bathrooms. Generally speaking, the thermal efficiency of the current small coal-fired boilers is below 70%, and the thermal efficiency of oil-fired and gas-fired boilers is relatively high, but it can only reach about 90%. The lost heat is generally difficult to recover. For places that need to provide continuous hot water for a long time, if only boiler heat...

Claims

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Application Information

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IPC IPC(8): F24D17/00F24H1/22F24H4/02F24H9/14
CPCY02B30/18
Inventor 李先庭邵晓亮周德海王宝龙石文星张晓灵韩宗伟
Owner TSINGHUA UNIV
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