Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Great temperature rising absorption type heat pump units

A technology of absorption heat pump and heat pump unit, applied in adsorption machines, heat pumps, refrigerators, etc., can solve the problems of low energy utilization efficiency, complicated operation and adjustment, and large investment.

Inactive Publication Date: 2008-09-10
TSINGHUA UNIV
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual engineering, it is often encountered that the temperature of waste heat resources is low and the temperature required by users is high. For example, the temperature of waste heat is 20-10°C, and the required heating temperature is 70-90°C. At this time, ordinary double-effect Or the single-effect absorption heat pump unit is often unable to increase the waste heat temperature to the level required by the user. Although the method of connecting two or more stages of absorption heat pumps in series can achieve the purpose of increasing the waste heat temperature by a large margin, it will bring volume to the system. Problems such as huge size, large investment, low energy utilization efficiency, and complex operation and regulation severely restrict the application of absorption heat pumps in this situation, and even lose their economic value.

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
  • Great temperature rising absorption type heat pump units
  • Great temperature rising absorption type heat pump units
  • Great temperature rising absorption type heat pump units

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Parallel cycle large temperature rise absorption heat pump unit. Such as figure 1 As shown, the heat pump unit has generator 1, condenser 2, primary absorber 3a, primary evaporator 4a, primary solution heat exchanger 5a, secondary absorber 3b, secondary evaporator 4b, secondary solution Heat exchanger 5b, primary throttling device 6a, secondary throttling device 6b, primary solution pump 7a, secondary solution pump 7b, primary refrigerant pump 8a, secondary refrigerant pump 8b, circulating water pump 9 and connections Main components such as pipelines. Wherein, the pressure of the primary evaporator 4a is lower than the pressure of the secondary evaporator 4b, and the pressure of the secondary evaporator 4b is lower than the pressure of the condenser 2. The dilute solution is heated and boiled by the heat source in the generator 1 to generate refrigerant vapor, and the concentration of the dilute solution increases to become a concentrated solution, which f...

Embodiment 2

[0020] Example 2: Inverted series cycle large temperature rise absorption heat pump unit. Such as figure 2As shown, the heat pump unit has generator 1, condenser 2, primary absorber 3a, primary evaporator 4a, primary solution heat exchanger 5a, secondary absorber 3b, secondary evaporator 4b, secondary solution Heat exchanger 5b, primary throttling device 6a, secondary throttling device 6b, primary solution pump 7a, secondary solution pump 7b, primary refrigerant pump 8a, secondary refrigerant pump 8b, circulating water pump 9 and connections Main components such as pipelines. Wherein, the pressure of the primary evaporator 4a is lower than the pressure of the secondary evaporator 4b, and the pressure of the secondary evaporator 4b is lower than the pressure of the condenser 2. The dilute solution is heated and boiled by the heat source in the generator 1 to generate refrigerant vapor, and the concentration of the dilute solution increases to become a concentrated solution, ...

Embodiment 3

[0021] Embodiment 3: Series-parallel cycle large temperature rise absorption heat pump unit. Such as image 3 As shown, the heat pump unit has generator 1, condenser 2, primary absorber 3a, primary evaporator 4a, primary solution heat exchanger 5a, secondary absorber 3b, secondary evaporator 4b, secondary solution Heat exchanger 5b, primary throttling device 6a, secondary throttling device 6b, primary solution pump 7a, primary refrigerant pump 8a, secondary refrigerant pump 8b, circulating water pump 9 and connecting pipelines and other main components . Wherein, the pressure of the primary evaporator 4a is lower than the pressure of the secondary evaporator 4b, and the pressure of the secondary evaporator 4b is lower than the pressure of the condenser 2. The dilute solution is heated and boiled by the heat source in the generator 1 to generate refrigerant vapor, and the concentration of the dilute solution increases to become a concentrated solution, which flows out of the ...

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 relates to a large temperature rise absorption heat pump assembly capable of greatly improving the temperature of waste heat. The invention adopts the technical proposal of two-stage evaporation and two-stage absorption. The large temperature rise absorption heat pump assembly mainly comprises a generator, a condenser, a primary evaporator, a secondary evaporator, a primary absorber, a secondary absorber, a primary solution heat exchanger and a secondary solution heat exchanger. The invention is characterized in that: heat generated by the primary absorber is used as a heat source of the secondary evaporator, and the primary evaporator absorbs low-temperature waste heat from the heat source; and heat generated by the secondary absorber and the condenser is used for heat supply. The large temperature rise absorption heat pump assembly has the advantages of capability of absorbing the waste heat of low-temperature heat sources and capability of obtaining high-temperature heat supply hot water.

Description

technical field [0001] The invention belongs to a heat pump unit for heating and hot water supply, in particular to a high-efficiency absorption heat pump unit capable of obtaining relatively large temperature rise. Background technique [0002] At present, various heat pump devices have been widely used in various heating and hot water supply systems. Among them, the heat-increasing absorption heat pump uses high-temperature heat energy as the driving force, extracts low-temperature waste heat, and supplies heating, hot water or process heat. Good energy saving, environmental protection and economic benefits have been widely used. For example, groundwater, surface water or industrial waste water are used as low-level heat sources, and high-temperature steam or fuel oil and gas are used as driving energy to provide heating for buildings. Heat pump unit. In actual engineering, it is often encountered that the temperature of waste heat resources is low and the temperature req...

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): F25B15/02F25B30/06
CPCY02A30/27Y02B30/62
Inventor 付林张世钢肖常磊陈闯
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com