CN103362175A

CN103362175A - Method and device for generating freshwater by utilization of underground water cold source

Info

Publication number: CN103362175A
Application number: CN2012101023815A
Authority: CN
Inventors: 赵雪冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-04
Filing date: 2012-04-04
Publication date: 2013-10-23

Abstract

The invention discloses a method and device for generating freshwater by the utilization of an underground water cold source. According to the method, underground low-temperature water is used as the cold source, water vapor in air is condensed to obtain the freshwater, and the underground low-temperature water is pumped to a earth surface condenser and used as a cold source of the condenser; or the water in the earth surface condenser is cooled through a multi-level energy converting device; if the temperature of refrigerant water in the condenser is not below an air dew point, the refrigerant water in the condenser can be further cooled through a refrigerating device, and the condensed water vapor in the air is attached to the surface of the condenser and drained to a water collecting tank through a water guiding chute. The device is composed of the condenser, an energy converting water tank, a water pump, a heat preservation water pipe and a condensate water collecting device. The device is simple in structure, does not need manual guarding and can obtain a large amount of freshwater through little energy.

Description

A kind of method and apparatus that utilizes underground water low-temperature receiver preparing fresh

Technical field

The present invention relates to a kind of method and apparatus that from air, obtains liquid fresh water, especially the method for condensation air preparing fresh.

Background technology

China is an extremely unbalanced country of distribution of water resources, the area that some water resources are not too abundant, the mode of groundwater abstraction is adopted in the people's living water use and irrigation mostly, and some areas since to underground water take out excessively abuse, cause the continuous decline of groundwater table and a large amount of geological problems to cause huge loss to social economy.And the general device that passes through chiller plant condensation air preparing fresh all has the characteristics of highly energy-consuming.With 30 ℃, the northern area air in summer of 70% humidity is example, and condensation makes a litres of air reduce by 20 ℃ of air themperatures, needs chiller plant carrying air energy 20KJ, airborne water vapor condensation heat release 24KJ, and chiller plant need be carried heat 44KJ altogether.The Energy Efficiency Ratio of chiller plant (COP value) is 4, approximately needs to consume 11KJ, can obtain 10g water.Obtaining a kg water needs the 1100KJ energy, obtains one ton of water, needs the 1100000KJ energy, approximates greatly the energy of 305 degree electricity.

The present invention utilizes the low-temperature characteristics of underground water, obtains fresh water by cryogenically descending the airborne steam of water condensation, obtains a large amount of condensation fresh water when not consuming underground water.Simultaneously, the present invention utilizes underground low temperature water to be low-temperature receiver, has saved a large amount of energy, really allows air condensed water become feasible water scheme processed.

Summary of the invention

The object of the invention is to, create a kind of method and apparatus of extraction air institute containing water vapor of low power consuming, because traditional method of passing through chiller plant condensation air steam need to consume a large amount of energy, obviously do not meet the needs of China's development low-carbon economy and sustainable development.Therefore, the underground water that utilizes of the invention obtains fresh water as the steam in the low-temperature receiver condensation air, has saved a large amount of energy, has realized low power consuming water processed.

The temperature of underground water is throughout the year constant, generally equals annual average annual temperature, and the northern area of China underground water temperature is throughout the year about 10 ℃.And the air humidity in China's most areas summer can reach about 70%.Take summer 30 ℃ temperature as example, a cubic metres of air solubilized 30 gram steam, in the 70% humidity situation, every cubic metres of air containing water vapor 21 grams.With air cooling-down to 10 ℃, can obtain 20 gram condensed waters by condenser.And the energy that the present invention consumes is the energy that refrigerant circulation pump and condenser exhaust equipment consume.

The invention is achieved in that and utilizes the airborne steam of condenser condenses to obtain condensed water that the refrigerant that the described condenser of this method adopts is low temperature underground water, perhaps utilizes multistage transducing head to be drawn into the low temperature cold of earth's surface condenser.If the underground water temperature is low not, can pass through auxiliary cooling equipment, underground water is further lowered the temperature because underground water itself is lower than summer temperature, so the chiller plant consumed energy than traditional chiller plant lack many.Refrigerant is circulation in condenser, and the hot air that enters condenser by air intake goes out condensed water in the condenser surface condensation, converge to guiding gutter by Action of Gravity Field again and flow into storage tank, and that underground water recharges again is underground, without the consumption of any groundwater resources.

Because the fresh water that the present invention produces comes from airborne steam, almost not pollute, water quality is fabulous, can filter as drinking water, also can store as industrial and agricultural production and use.This method preparing fresh only consumes the energy of refrigerant flow pumps and the energy of condenser exhaust equipment, has saved a large amount of energy than additive method.

Description of drawings

Fig. 1 is the condensating water-making apparatus configuration diagram that need not the transducing water tank

Fig. 2 is for there being one-level transducing water tank type condensating water-making apparatus configuration diagram

The specific embodiment

The present invention utilizes underground low temperature water as low-temperature receiver, and the steam in the condensation air obtains fresh water.Have various ways to be used for realizing the condensation purpose: a kind of mode is directly to extract low temperature underground water, and underground low temperature water is drawn into the earth's surface condenser, as condenser low-temperature receiver (such as figure one).The hot air in summer is condensed into dewdrop at condenser surface after the condenser cooling, last dewdrop flows into storage tank along the guiding gutter of condenser surface.Described condenser (6) is installed in the earth's surface, and its structure is similar to the condenser of air conditioner, is fin, condenser has guiding gutter, can conveniently collect condensed water, condenser is connected underground water by water pump with attemperater, cryogenically descends water circuit to flow and is finished by water pump (8).

Another kind of more energy-conservation mode is with the water for cooling in the condenser of earth's surface (such as Fig. 2) by multistage transducing head.The water inlet that inserts underground water has screen pack (9), prevents that the silt in the underground water from entering water inlet.Flowing of underground water driven by circulating water pump (8).Aqueduct (1) is for there being the insulating tube of insulation layer outward, prevent the underground water intensification of in flow process, absorbing heat, during the hollow heat exchanger fin (2) of Groundwater Flow to the transducing water tank (4), the low temperature underground water in the hollow heat exchanger fin passes to chilled water in the transducing water tank (4) to cold.Chilled water in the transducing water tank flows to earth's surface condenser (6) along attemperater (5), and the Ground Heat air flows through and is condensed into the globule behind the earth's surface condenser (6) and is collected as cleaning fresh water.Earth's surface condenser (6) should with ground at an angle, mobile to make things convenient for condensing drip to converge, tank is arranged in condenser bottom, condensed water flows into tank along the catch basin on the fin, flows at last storage tank.The height of every grade of transducing devices of this mode is no more than the water-column (10 meters) that an atmospheric pressure supports, and circulating water pump just promotes flowing of chilled water, only needs minimum power to get final product, and is therefore more energy-conservation than mode one.

, can further the chilled water in the condenser be lowered the temperature by chiller plant not below air dew point such as the chilled water temperature in the condenser, condensed air vapor is attached to condenser surface and drains into header tank by guiding gutter.

Claims

1. method of utilizing underground water low-temperature receiver preparing fresh is characterized in that: the low-temperature receiver that this method condensation air steam adopts is low temperature underground water, and underground low temperature water is drawn into the earth's surface condenser, as the condenser refrigerant; Perhaps pass through multistage transducing head with the water for cooling in the condenser of earth's surface, steam in the condensation air; Also can further reduce underground low temperature water by chiller plant, as the refrigerant of condensation air steam; Cooled air vapor condensation is attached to condenser surface and drains into header tank by guiding gutter, and the groundwater recharge that is circulated throughout is underground.

2. the described method of utilizing underground water low-temperature receiver preparing fresh according to claim 1, it is characterized in that: every grade of described multistage transducing head highly is no more than 10 meters (standard atmospheric pressures), every grade is carried out interchange of heat by hollow heat exchanger fin and chilled water in heat-exchange insulating water tank (4), the one-level level that guarantees cold is transmitted, and the chilled water in the transducing head flows and relies on circulating water pump (8).

3. device that utilizes underground water low-temperature receiver preparing fresh, comprise condenser (6), it is characterized in that condenser (6) is the fin fin, its water inlet connects attemperater, attemperater connects low temperature underground water or upper level heat-exchanging water tank (4) delivery port, its delivery port takes back by attemperater and fills with ground lower outlet or upper level heat-exchanging water tank (4) water inlet, and micro pump (8) is arranged in condenser or heat-exchanging water tank or the attemperater.

4. the described device that utilizes underground water low-temperature receiver preparing fresh according to claim 3, it is characterized in that: described multistage transducing head partly is comprised of following youngster:

The transducing water tank (4) that lagging casing is arranged, connect attemperater (1) under the water tank, utilidor connects the low temperature cold water source, fin hollow heat exchanger fin (2) is arranged in the water tank, heat exchanger fin connects interface on the water tank, interface connects utilidor (5) on the water tank, the interface utilidor connects earth's surface condenser (6) on the water tank, micro pump (8) usefulness is installed so that the water circulation in each closed circulation pipeline flows in utilidors at different levels, difference according to groundwater level, select transducing progression, every grade of heat-exchanger rig height is no more than atmospheric pressure water-column (10 meters), and the utilidor of subordinate heat-exchanger rig inserts in the low temperature underground water.

5. the described device that utilizes underground water low-temperature receiver preparing fresh according to claim 3, it is characterized in that: described earth's surface condenser is fin mechanism, and condenser has guiding gutter.