CN1106521A

CN1106521A - Air conditioning system using water as carrier by deep well cold storage

Info

Publication number: CN1106521A
Application number: CN94111418A
Authority: CN
Inventors: 张述云
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-18
Filing date: 1994-08-18
Publication date: 1995-08-09

Abstract

The air conditioning system using underground water as medium and the difference between underground water and ambient temp. for heat exchange to cool features its design of refrigerating-cold accumulating system and utilization system. In low-temp. season, carrier is cooled and stored in deep well. In high-temp. season, low-temp. water is pumped out for cooling.

Description

Air conditioning system using water as carrier by deep well cold storage

A kind of deep-well cold-storage, water are that the air-conditioning system of carrier is used for the adjustment usefulness that residential building, office and factory need cooling system.Belong to mechanical engineering field.

The existing technology of utilizing usderground water as coolant maximally relatedly is: connect to form a closed circuit circulatory system successively by underground water well, suction pump, outlet pipe and air-conditioning air regulator, return pipe etc. and form.(Chinese patent denomination of invention: utilize underground water to make the air-conditioning system of refrigeration, the applicant: Zhejiang Building Engineering Co. No.4, application number: 89108110.0, publication number CN1043381A, the applying date: on October 18th, 89).The operation principle of this system is: after starting suction pump, underground water as the refrigerant of this system, be installed on indoor air-conditioning air regulator through drinking-water pipe, suction pump, outlet pipe inflow, after heat in the heat exchange absorption chamber heats up, flow into well through return pipe, in well, emit to extract out through pump again after heat is lowered the temperature and reuse.Fig. 1 is the operation logic figure of this invention system.This technology provides a kind of reduced investment, air-conditioning system that operating cost is low.

The deficiencies in the prior art part is: the underground water of utilization is natural temperature, be generally about 19 ℃, little with the heat exchange difference of air-conditioning air regulator, so its available cold is limited, in addition, along with the increase of service life, heat can have been put aside in the stratum, ground water temperature is raise, finally lose cooling-down effect.

At the deficiencies in the prior art part, the objective of the invention is: the refrigeration, the cold accumulation system that design that the simple equipment of a kind of usefulness, the less energy freeze in the winter time, deep-well cold-storage, summer utilize, this system can obtain the water at low temperature lower than underground water natural temperature in summer, and the effect that the utilization of cold can double approximately, and deep-well around formation temperature can not improve yet, reach the purpose that this system can use for a long time.

Technical scheme of the present invention is: whole system is made up of system's two parts of refrigeration, cold accumulation system and utilization exploitation low-temperature receiver.First's refrigeration, cold accumulation system are by deep-well, deep well pump, flow pipe, cooling tower, water treatment facilities, return pipe, connect to form in regular turn; Second portion is the development and use parts, and it is to be formed by connecting in regular turn by deep-well, deep well pump, flow pipe, air-conditioning air regulator or production equipment, return pipe etc.If utilize surface water, only need to dig a bite well and make cold-storage with getting final product.

The invention is characterized in: groundwater abstraction in the winter time, in refrigeration, cold accumulation system, prepare water at low temperature with cooling device, after water treatment, recharge in another mouthful deep-well in this system, deposit developed in summer.

Fig. 1 is prior art system operation logic figure;

Fig. 2 is the operation logic figure of system of the present invention;

Below in conjunction with embodiment the present invention is further narrated: dig deep-well 1,2, deep-well two wells of the present invention are at a distance of between about 40-60 rice, and about about 55 meters of well depth is decided according to phreatic position, and such two well phase mutual interference can be avoided.It is dual-purpose that the structure of deep-well is taken out, irritated, all semiclosed and totally-enclosed circulations in two wells of refrigeration and cold accumulation system and development and use system.As pumped well, deep-well 2 is as inverted well in refrigeration, cold accumulation system for deep-well 1, and deep well pump 3,4 lays respectively in the deep-well 1,2, and drinking-water pipe 5-end is connected with deep well pump 3, and an end is connected with cooling tower 6.Delivered to cool off in the cooling tower 6 by deep well pump 3 groundwater abstractions and recharged in the deep-well 2 by return pipe 11 after (refrigeration) filters through water treatment facilities again winter.The present invention once did overtesting: 1, to 94 year March 1 of time since 94 on January end of day.Deep well pump day about 1000 tons of water withdrawals, 19 ℃ of water temperatures, daily during this period temperature once cools off with a cooling tower between 5 ℃-9 ℃.The cooling water that can obtain about 11 ℃ of water temperatures recharges among the deep-well for 1000 tons.If with 2 coolings of two cooling towers, the water at low temperature temperature that then can produce can be lower.Used cooling tower is 50 tons of plain edition glass fibre reinforced plastics cooling towers, and deep well pump is QJ type diving deep well pump, and water treatment facilities are the common filter of making medium with sandstone.Purpose is to remove the oxide that iron ion generates because of oxygen combination in the chance air in the underground water.Because underground water is big unlike the moving property of river waterflow, and has very thick stratum heat insulation, the water at low temperature of therefore recharging in the deep-well can form a cold water area around deep-well, and preserves the several months.Can develop in summer or early summer.Start the deep well pump 2 in the development and use system summer, the water at low temperature of irritating winter be extracted into air-conditioning air regulator 9(or factory's cooling system of room, office through flow pipe 8) in go to carry out heat exchange.This moment, the temperature difference in heat exchanger can reach 10 ℃-20 ℃, therefore can produce good refrigeration, cooling-down effect.Water after the intensification adopts high-order method of carrying to get back in the deep-well via return pipe 10.Water temperature after the intensification is controlled at about 22 ℃.The above-mentioned test of mentioning is to start the development and use system since May 1, exploits before the applying date:

1.27 ten thousand tons in 11 ℃-14 ℃ water

1.49 ten thousand tons in 14 ℃-15 ℃ water

1.2 ten thousand tons in 15 ℃-16 ℃ water

2.5 ten thousand tons in 16 ℃-17 ℃ water

2.2 ten thousand tons in 17 ℃-17.5 ℃ water

Exploited 8.66 ten thousand tons in the water below 17.5 ℃ altogether, about every day pump-out 1 kiloton, water temperature still maintains 17.5 ℃.1.5 ℃ have been descended than phreatic natural temperature.

Embodiment 2: the present invention also can utilize surface water to make carrier.If utilize river, lake water do carrier need only dig deep-well extract rivers and lakes water after filtration, recharge in the deep-well after the cooling and store.Summer, the intensification water of development and use then was thrown into the face of land, did not return the stratum, so just can solve the problem that heats up in underground water and stratum.

The invention solves the heat accumulation problem that the circulation of long-term use underground water produces, bigger again raising refrigeration, a kind of energy savings of can yet be regarded as, reduce investment outlay, operating cost is low, and cooling-down effect, the cooling system that can use are for a long time arranged.

Claims

1, a kind of deep-well cold-storage, water are that the air-conditioning system of carrier is made up of refrigeration, cold accumulation system and development and use system two parts, it is characterized in that: the manufacturing water at low temperature is by deep-well, places the deep well pump of deep-well to be connected with cooling tower with flow pipe, cooling tower connects water treatment facilities, is connected to form refrigeration and cold accumulation system through return pipe and deep-well 2 again and finishes; Reduce room temperature, join successively by deep-well, deep well pump, flow pipe, air-conditioning air regulator, return pipe and form the development and use system and finish.

2, deep-well cold-storage according to claim 1, water are the air-conditioning system of carrier, it is characterized in that: refrigeration and cold accumulation system utilizes the cooling tower in the system that water is made water at low temperature at low temperature season, irritates back the deep-well deposit.

3, deep-well cold-storage according to claim 1, water are that the air-conditioning system of carrier is characterized in that: the water that is extracted can be surface water.