| conservation office learned from the Xi'an: bear | | | | extraction; continuously increased after heating |
| Qu Yuan Jiang Chunxiao district heating and hot | | | | geothermal tail water recharge test; use of pricing |
| water supply heat Xi'an shaoling Highland | | | | as a means to force the use of geothermal wells, |
| Development Co., Ltd., using water source heat | | | | take water-saving measures. Xi'an shaoling |
| pump, the daily production of geothermal tail | | | | Highland Development Co., Ltd. is the heat |
| water (even if the used water) to After the | | | | processing sector in accordance with the |
| second heat exchanger recycling, until the | | | | requirements set geothermal water pumping wells |
| discharge temperature from 40 ? down to 10 ?, | | | | at the same time, set the recharge wells, but also |
| and then recharge to the ground through | | | | to respond positively to the Government's call to |
| recharge wells. Stay in the residential area of | | | | conserve water, investment 2.40 million in the city |
| more than 50,000 square meters of the case, the | | | | take the lead in the acquisition of water source |
| company not only reduce the exploitation of | | | | heat pump. |
| geothermal water per day is about 400 tons, but | | | | Ground water recharge of the current technology |
| also extended the life of the geothermal wells, | | | | has been approved in the city in recent years, |
| excluding the sewage pipe and the surrounding | | | | new geothermal wells in the mining sector to |
| environment, thermal pollution, improve the | | | | promote, but in previous years, geothermal wells |
| enterprise economic benefits. | | | | approved in the promotion of the use of units |
| This is undoubtedly the sustainable use of | | | | difficult. Designed to recycle water, water source |
| geothermal water in an effective way. At the | | | | geothermal heat pump tail spread is more difficult. |
| same time, this reporter was informed that, at | | | | This is mainly due to recharge ground water and |
| present, Xi'an normal operation of geothermal | | | | adoption of water source heat pump, we must |
| wells in a total of 50. Among them, both the use | | | | increase the number of millions of dollars of capital |
| of recycled water source heat pump geothermal | | | | investment. And even if no recharge, not using |
| water, but also through additional water recharge | | | | water source heat pump, geothermal wells in a |
| to the underground, only Xi'an shaoling Plateau | | | | 10-year life span is also ~ 15 years. Some people |
| Geothermal Development Co., Ltd. 1. Why are | | | | hold that only the cost of playing a well |
| both significant social economic benefits of saving | | | | approximately 400 million, Adds recharge wells, |
| water and energy methods have not been widely | | | | using water source heat pump, the increase in the |
| promotion to date? This reporter interviews were | | | | cost of six years to recover the past, might as |
| conducted. | | | | well just play an exploration well, scrapped the |
| Xi'an geothermal exploration began in 1973. After | | | | resort to 1 In any case, it was exploitation of |
| 1993, geothermal energy development and | | | | underground water total. |
| utilization of Jianrugaochao. At that time, | | | | According to reports, the vast majority of |
| constrained by the technical level, ground water | | | | geothermal wells, pumping is not only recharge, |
| extraction system, only the extraction wells, did | | | | but also a waste of geothermal tail water, the |
| not recharge well. Can be used to recycle water, | | | | phenomenon has intensified the city's geothermal |
| water source heat pump tail, but also the last ten | | | | water resources depletion. Since the last century |
| years, especially in the last five years, only in | | | | since the 90s, the city's geothermal wells |
| North America, China and Northern Europe the | | | | constantly approval, kept scrapping, geothermal |
| United States, Canada, Switzerland, Sweden and | | | | water level continued to decline. Among them, |
| other countries have made rapid development in | | | | more geothermal wells in south-eastern suburbs, |
| the domestic use of water source heat pump tail | | | | southern suburbs and Western suburbs area, |
| water recycling less. | | | | ground water level dropped an average 15 |
| Therefore, when the city's many enterprises | | | | meters to 20 meters, wellhead temperature fell |
| have to drill geothermal wells, carried out heating, | | | | by an average 3 ? ~ 5 ?. In a relatively small |
| bathing, physical therapy, leisure and | | | | number of geothermal wells, mining a lower |
| entertainment project, a large number of | | | | intensity of the western suburbs, the northwest |
| geothermal tail water temperature is still about 35 | | | | of the east suburb area, has yet to establish a |
| ? on a wastewater discharge, and some of them | | | | large area of the head down, but exploitation of |
| due to thermal pollution caused by improper | | | | the well head is still a single continuous downward |
| discharge, leading to serious waste of energy, | | | | trend, the annual average rate of decline of about |
| heat low rate of utilization of water resources. | | | | 3 m ~ 5 meters. |
| In this case, in order to protect the exploitation of | | | | Protection of non-renewable mineral resources, |
| geothermal water resources in the city since | | | | not only the need for greater investment, but |
| 2002, has completed the hot water to households | | | | also increase the development and utilization of |
| in the census, registration; serious waste of | | | | new energy-saving technologies. To work out |
| resources to the approval of the project in | | | | more energy-efficient new technology, to extend |
| principle; reductions in Xi'an rapid decline in water | | | | the life of the geothermal wells, so that our |
| level of urban households in the region for water | | | | endless stream of geothermal water. |