CN201218627Y

CN201218627Y - Dual-effect absorption type ground source heat pump and floor air conditioner integration system

Info

Publication number: CN201218627Y
Application number: CNU2008201151634U
Authority: CN
Inventors: 张茂勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-19
Filing date: 2008-05-19
Publication date: 2009-04-08
Anticipated expiration: 2018-05-19

Abstract

An integrated system of a double-effect absorption ground-source heat pump and a floor air conditioning comprises an integrated double-effect absorption ground-source heat pump/refrigerator, an underground well water system and an air conditioning terminal. The integrated system can efficiently fulfill high-efficiency refrigerating function with well water in summer and efficiently heat a floor heating heat exchanger with a heat source extracted with the well water in winter without using a cooling tower. The integrated system greatly improves the comprehensive utilization benefit compared with a conventional voltage compression-type ground-source heat pump system and is economical and practical in solving the air conditioning problem all year round in areas with geological conditions.

Description

A kind of double effect absorption earth source heat pump and floor air-conditioning integrated system

Technical field

The utility model relates to a kind of double effect absorption earth source heat pump and floor air-conditioning integrated system, belongs to Absorption Refrigerator, earth source heat pump, floor air-conditioning system technical field.

Background technology

Earth source heat pump heat supply and air-conditioning cold supply system have the energy that makes full use of underground, the advantage that employing one cover system can solve annual air-conditioning cooling and heat supply problem, adopt the soil source and the water resource heat pump large-scale promotion use of electric compression heat pump in recent years, and obtained good application benefit.But, adopt electric compression heat pump to be subjected to performance, the structure of electric compressor, the restriction of process characteristic, a large amount of engineering example show, the comprehensive Energy Efficiency Ratio COP of electricity compression earth source heat pump real system in the winter time is about about 3, compare with municipal heating systems heat supply or natural gas boiler heat supply etc., do not have remarkable advantages aspect energy saving and the economy.

Floor heating is for heating systems such as traditional radiator heating, fan coil heating and all-air system, have advantages such as high-comfort consumption, good energy-conservation and economy, obtaining large tracts of land in recent years promotes, but how utilizing its characteristics to select suitable thermal source to reduce energy expenditure as far as possible, is problem very actual in the practical engineering application.

Simultaneously, traditional Absorption Refrigerator, when adopting high-grades such as natural gas or middle temperature steam, high price thermal source driving cooling, its operation of air conditioner expense is higher, and need discharge a large amount of condensation heat from cooling tower, usually to be subjected to the influence of surrounding air very big for its cooling water leaving water temperature, can cause refrigerating capacity and coefficient of refrigerating performance COP to descend under the super-humid conditions, and can bromizate the lithium concentrated solution and be easy to crystallization etc.

For this reason, can consider to adopt absorption earth source heat pump to solve the problem of annual air-conditioning cooling and heat supply in conjunction with the scheme of floor air-conditioning.Absorption heat pump is equivalent to the advantage that electric compression heat pump has aspect structural manufacturing process: it mainly moves parts such as generator, absorber, evaporimeter, condenser, throttle mechanism etc. can be optimized design, making, assembling easily according to the needs of design conditions, and be not subjected to the restriction of existing compressor stereotyped structure and function, possess the condition of rapid practicability.

Summary of the invention

The purpose of this utility model and task are, develop a kind of novel absorption type heat pump system, adopt high-temperature-hot-water, thermal source such as steam and natural gas drives double-effect absorption refrigerating machine, extract the energy that underground contained, carry out summer cooling and winter floor heating, according to the while cooling, the function of heat supply, the needs of parameter, targetedly to absorption heat pump circulation the carrying out adjustment of thermal process, and the evaporimeter of employing corresponding construction, absorber, the adjustment of the design selection of condenser and generator etc. and solution concentration etc., realize summer cooling, Winter heat supply reaches the purpose that increases substantially performance driving economy.

Specific descriptions of the present utility model are:

A kind of double effect absorption earth source heat pump and floor air-conditioning integrated system, adopt thermals source such as high-temperature-hot-water, steam and natural gas to drive double-effect absorption refrigerating machine and carry out summer cooling and winter heating, the energy that extracts underground simultaneously is with further saving energy consumption, comparable conventional double-effect lithium bromide refrigeration machine is produced the chilled water more than 7 ℃ more efficiently when summer cooling, and wherein underground heat exchanger leaving water temperature is more than 16 ℃.The energy that extracts underground during Winter heat supply is used for to the efficient heat supply of floor heating heat exchanger.

This absorption heat pump is the double-effect absorption refrigerating machine structure, wherein evaporimeter, absorber, condenser and high and low pressure generator carry out the corresponding structure adjustment according to chilled water supply and return water temperature, heat supply water supply and return water temperature, driving heat source supply and return water temperature etc., and other associated components or pipeline etc. also need carry out design selection targetedly.

During summer cooling, the operation of air conditioner expense is low by 20～30% with comparable conventional air-conditioning system, and is slightly better or quite than the electric compression earth source heat pump cold supply system of routine.Its energy expenditure will be than directly saving more than 50% by the natural gas boiler heat supply during Winter heat supply.Therefore, adopting double effect absorption earth source heat pump and floor air-conditioning integrated system is air-conditioning cooling and the heat supply method with tangible energy saving, economy and practicality.

Description of drawings

Fig. 1 is a system schematic of the present utility model.

Each unit number and title are as follows among Fig. 1:

High pressure generator 1, low pressure generator 2, condenser 3, evaporimeter 4, absorber 5, missile silo water system 6, air-conditioning cooling end 7, floor heating heat exchanger 8, heating water-circulating pump 9, air conditioner water circulating pump 10, missile silo water-circulating pump 11, high temperature heat source inlet pipe 12 and go out pipe 13.

The specific embodiment

Fig. 1 is a system schematic of the present utility model.

A kind of double effect absorption earth source heat pump and floor air-conditioning integrated system, adopt the double-effect absorption refrigerating machine structure, adopt thermals source such as high-temperature-hot-water, steam and natural gas to drive, produce refrigerant vapour summer in high pressure generator 1, enter 2 pairs of weak solutions of low pressure generator and carry out the condensation heat release, condensate water with enter condenser 2 condensations and after throttling is depressured to, enter evaporimeter after producing of further evaporation mixed, be sent to the user after chilled water is reduced to 7 ℃, 20 ℃ of underground well water being sent by missile silo water system 6 enter absorber and condenser cools off.Extract energy by evaporimeter winter from underground well water, by absorber and condenser heat supply water is heated, and is used for to floor air conditioner user heat supply, and it heats COP and can reach about 2.2～2.4, and operating cost is saved significantly.

Claims

1, a kind of double effect absorption earth source heat pump and floor air-conditioning integrated system, by double effect absorption earth source heat pump (1,2,3,4,5), missile silo water system (6), air-conditioning cooling end (7), floor heating heat exchanger (8) and other appurtenances are formed, the chilled water side that it is characterized in that the evaporimeter (4) of described double effect absorption type heat pump links to each other with air-conditioning cooling end (7) with missile silo water system (6) respectively, the driving heat source side of described high pressure generator (1) and thermal source turnover pipe (12,13) link to each other, the coolant intake of described absorber (5) links to each other with the outlet pipe of missile silo water system (6) and the return pipe of floor heating heat exchanger (8) respectively, outlet links to each other with the cooling water inlet of condenser (2), and the coolant outlet of condenser (3) links to each other with the water inlet pipe of missile silo water system (6) and the feed pipe of floor heating heat exchanger (8) respectively.

2, double effect absorption earth source heat pump as claimed in claim 1 and floor air-conditioning integrated system, it is characterized in that described absorption earth source heat pump (1,2,3,4,5) is the double-effect absorption refrigerating machine structure, described missile silo water system (6) is for directly taking phreatic well system or underground source buried tube heat exchanger, and the driving heat source of described high pressure generator (1) is patterns such as high-temperature-hot-water, steam or natural gas direct combustion.