Geothermal heating system for combining gradient flash evaporation afterheat recovery with heat pump technology

A technology of waste heat recovery and heat pump technology, which is applied in hot water central heating systems, heating systems, geothermal power generation, etc. The effect of small dimension, improved operation reliability and high reliability

Pending Publication Date: 2019-06-07
中核坤华能源发展有限公司
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing geothermal heating is directly heated by the plate heat exchanger, which causes serious fouling of the heat exchanger, failure of the heat exchange effect, and even corrosion of the heat exchanger and the relatively high temperature of the recharged geothermal tail water. Provides a geothermal heating system with cascade flash waste heat recovery combined with heat pump technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Geothermal heating system for combining gradient flash evaporation afterheat recovery with heat pump technology
  • Geothermal heating system for combining gradient flash evaporation afterheat recovery with heat pump technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The technical solutions of the present invention will be further described and illustrated through specific examples below.

[0018] Such as figure 1 As shown, a geothermal heating system with cascade flash waste heat recovery combined with heat pump technology includes a submersible pump 1, a heating circulating water pump 13, a primary flash evaporator 2, a secondary flash evaporator 4, a primary condenser 8, and a secondary condenser 9 and a heat pump 12 . The outlet of the submersible pump 1 is connected to the first geothermal water inlet 21 of the primary flash evaporator 2 , and the first geothermal water outlet 22 of the primary flash evaporator 2 is connected to the second geothermal water inlet 41 of the secondary flash evaporator 4 . The first steam outlet 25 of the primary flash evaporator 2 is connected to the first steam inlet 81 of the primary condenser 8 . The second steam outlet 45 of the secondary flash evaporator 4 is connected with the second steam...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a geothermal heating system for combining gradient flash evaporation afterheat recovery with a heat pump technology. The system comprises a submersible pump and a heating circulating water pump, and further comprises a first-grade flash evaporator and a second-grade flash evaporator; an outlet of the submersible pump is connected with the first-grade flash evaporator; and the first-grade flash evaporator is serially connected with the second-grade flash evaporator. The system further comprises a first-grade condenser and a second-grade condenser; the first-grade flash evaporator is connected with the first-grade condenser; and the second-grade flash evaporator is connected with the second-grade condenser. The system further comprises a heat pump; the heat pump is connected with the second-grade condenser; and the heating circulating water pump is connected with the first-grade condenser and the heat pump. The novel geothermal heating system built by the gradientflash evaporation and the heat pump technology uses heat recovered by the second-grade flash evaporator as a heat source of a heat pump main machine, so that heat in geothermal water is fully recovered; and meanwhile, the influence on the heating system by the water quality of geothermal water is lower, so that bad scaling caused by geothermal mineralization degree hot water is prevented.

Description

technical field [0001] The invention relates to the technical field of new energy development and utilization, in particular to a geothermal heating system with cascade flash waste heat recovery combined with heat pump technology. Background technique [0002] At present, in the mid-to-deep geothermal heating, most of the heating circulating water is directly heated by a plate heat exchanger and then recharged to the recharge well. For example, the Chinese patent with the publication number CN107270371A discloses a cascade utilization heating system of the same layer recharge electric heat pump for geothermal heating. The system is mainly composed of water pump, water well, plate heat exchanger, first valve, second valve, electric heat pump, recharge well, third valve and fourth valve. During operation, when the local hot water temperature is higher than 40°C, The geothermal water directly enters the plate heat exchanger to exchange heat with the heating return water, and t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/18F24T10/20
CPCY02B10/40Y02E10/10
Inventor 刘军谢迎春王志刚王文英陈晓东刘富华戴承钧杨磊
Owner 中核坤华能源发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap