With the increasing electricity load, saving electricity has attracted more and more attention. The ice storage air-conditioning system adopted by Hangzhou Huating Yunqi Resort Hotel can effectively avoid the peak electricity consumption during the day, use the low power consumption at night to produce ice storage, release cold energy during the day, and effectively play the role of "peak shaving and valley filling" of the power grid. role.
For hotels, time-of-use electricity pricing policies can be used to significantly save operating costs. The ice storage air conditioning system uses no or less electricity when the electricity price is high and releases the stored cold energy for use. When the electricity price is low, it uses more electricity and stores the produced cold energy. Since the peak-to-valley ratio of electricity prices in Hangzhou reaches 2:1, the annual savings in operating electricity costs are considerable. In addition, since the air conditioner must rely on melted ice for cooling operation during peak load periods, the installed cooling capacity of the air conditioner host can be reduced, and the installed capacity and investment of corresponding equipment such as cooling towers and circulating water pumps will also be reduced. , and at the same time, it can also reduce the cost of initial investment in electricity. Therefore, the application of ice storage air conditioners can be said to have both economic and social benefits.
Due to the increasing maturity of ice storage technology, low-temperature air supply becomes possible. Low-temperature air supply can reduce the humidity of indoor air and make people feel fresh. On the premise of satisfying human body comfort, the indoor air temperature can be appropriately increased, so that when guests walk out of the air-conditioned room, they can quickly adapt to the changes in outdoor temperature without any discomfort. Feeling too much discomfort may lead to air-conditioning sickness. At the same time, low-temperature air supply can prevent the growth of bacteria and is beneficial to the health of hotel guests.
At Hangzhou Huating Yunqi Resort Hotel, what caught our attention was their gray water treatment system.
The so-called reclaimed water reuse is to process the waste sewage through the sewage treatment system and then undergo in-depth treatment, such as coagulation, sedimentation, filtration, biochemical degradation, sterilization, etc., to meet the reuse requirements. Gray water is located between "upper water" and "lower water". Although it is not edible, it fully meets the requirements for greening and other aspects. Hotels consume a lot of water. About 600 tons of wastewater are produced every day. After treatment and reuse, it can be used for greening irrigation, landscape fountains, toilet flushing, car washing, etc.
At present, there are many domestic sewage treatment processes. Huating Yunqi Resort Hotel adopts the hydrolysis-aerobic process. The characteristics of this process are: first, the hydrolysis tank replaces the traditional primary sedimentation tank. More importantly, after hydrolysis treatment, the organic matter in the sewage not only changes in quantity, but also undergoes greater changes in physical and chemical properties. The changes make the sewage more suitable for subsequent aerobic treatment, and purification can be completed in a shorter residence time with less gas volume. Second, this process completes the treatment of sludge while treating sewage, making sewage and sludge treatment unified, and the digester can be eliminated from the traditional process. This not only ensures reliable process operation and stable emission indicators, but also saves investment and low operating costs, and can eliminate various human factors. Third, the volume of the violent gas pool and the volume of violent gas are significantly reduced.
After the hotel adopts this system, it not only saves considerable water and sewage fees every year, but also has immeasurable social benefits.
Ningbo Xinzhou Hotel
New management system for energy conservation and consumption reduction
Ningbo Xinzhou Hotel pays more and more attention to energy conservation and will use it from the perspective of sustainable development. The importance of energy saving and consumption reduction is closely combined with maintaining the competitive advantage of the enterprise, and a sound energy saving and consumption reduction management system of "management supervision and everyone's participation" has been established and improved. The Engineering Department is directly involved in energy management, formulating energy-saving plans, arranging daily inspections and other tasks. It takes "frequent inspections, implementation, and elimination of hidden dangers" as its work purpose and implements them one by one. Employees of all teams are required to realize that energy saving is not at the expense of service quality, and the quality of customer service must not be reduced or service standards should be affected. In recent years, the hotel's basic energy consumption has not increased due to the aging of the equipment and the decline in performance, but has shown a downward trend year by year.
Energy saving in hotels is a regular task with great potential. Energy conservation is mainly achieved by strengthening management. Energy conservation must not affect the quality of customer service or reduce guest comfort.
Organize technical backbones to conduct research and discussion on topics such as water treatment issues in air-conditioning systems and the impact of pipeline heat exchange conditions on energy consumption.
Housekeeping Department: Carry out the "Green Butler" activity, advocate green consumption, and provide hotel guests with room service products that meet safety, health, and environmental protection requirements. Measures that have been implemented include: 1. Strictly control the ratio and amount of detergents, and pay attention to economy; 2. Control the amount of public health consumables in the lobby according to passenger flow, and do not use them blindly; 3. Make full use of recyclable items , and implement dedicated personnel to keep it and control the usage; 4. Employees do not take the elevator when going up or down to save electricity and reduce equipment losses; 5. Replace old batteries with new ones and hand them over to the housekeeping center for unified processing; 6. Add water to the guest room pipes in time to prevent There is an odor; 7. Develop methods to remove smoke odor from guest rooms; 8. Establish a complete fresh air supply control system and operation records to improve indoor air quality. The 26th floor was set up as a non-smoking floor, with No smoking floor and No smoking room signs made, a non-smoking floor cleaning operation procedure was formulated, and on-the-job training was conducted for waiters.
Food and Beverage Department: Focusing on cost saving, we conducted a large-scale discussion on "reasonable purchase and reduction of inventory". Strengthen communication and contact between the front and back offices, rationally purchase food according to actual demand and quality standards, and focus on the selection of green food. The kitchen teams on the second floor will use the fish bones, fish heads, fish tails, etc. as ingredients for soup. Prepare ingredients strictly according to the number of diners to prevent wastage of raw materials. Dishes saved from the conference buffet are used as staff meals to avoid waste. Employees in the vegetable washing class strengthen water conservation management.
Finance Department: Control green procurement, strictly review purchase and receipt systems, and control operating expenses. Prepare detailed accounts and provide accurate data comparison and analysis. All infrastructure materials for the hotel's own decoration and contracted parts are made of environmentally friendly materials, and material suppliers are required to provide environmental protection labels, including plywood, blockboards and paints.
Other departments: Actively carry out various forms of training and education on “green creation” activities. Promote turning off lights and water at will, try not to use air conditioners, implement paperless office, and promote energy conservation and consumption reduction at all times, everywhere, and in everything.
Hangzhou Xiangyi Hotel
The charm of frugality is sweeter
In the 7 years since its opening, Hangzhou Xiangyi Hotel has seen higher revenue efficiency over the years, but electricity, oil and , the total annual water energy consumption still has not increased much. In 2004, electricity was saved by 320,000 kWh, oil was saved by 109 tons, water was saved by 19,000 kWh, and the total cost was saved by more than 600,000 yuan.
1. Introduce ISO14000 environmental certification, integrate with international standards, and improve corporate energy conservation standards.
As early as April 2001, Xiangyi took the initiative to become a pilot unit in Hangzhou and began to introduce the international ISO14000 environmental management quality system. The environmental policy established by Xiangyi at that time was clearly stated as: "Save energy, reuse, reduce pollution, add greenery and fragrance, and fill the spring with fragrance." By establishing overall goals and formulating specific measures to achieve the goals, we have clarified the management responsibilities of each department, formulated a set of relevant documented management procedures and operating standards, and implemented effective control over the entire operation process to effectively control various environmental factors. and management to ensure that important positions are operated in accordance with documents and establish more complete prevention and emergency response measures. During the operation of the system, relevant activities were inspected, major environmental impacts and equipment operation were monitored, environmental performance and the completion of goals were supervised and relevant records were established for traceability, and internal reviews were held to understand the operation of the system. Verify the applicability, adequacy and effectiveness of the system and make timely modifications and revisions. On the basis of two internal audits, a management review meeting was held and the certificate was obtained through certification.
The certification results show that since the introduction of the ISO14000 management system, through energy conservation and consumption reduction, the hotel has saved nearly 240,000 yuan in water, electricity, and raw material consumption in the year after passing the certification compared with the same period in the same period, and the consumption of low-value consumables in the same period has been reduced Save nearly 60,000 yuan. At the same time, in accordance with the requirements of environmental management, noise reduction facilities have been renovated four times in key areas that affect the environment - the boiler room, basement air conditioning exhaust vents, etc., and have met the satisfactory requirements of environmental monitoring.
The hotel has complete sewage and exhaust gas treatment facilities. Water pollutants and exhaust gas pollutants are tested by the environmental protection department every year to meet national emission standards. The treatment facilities are complete and effective. Boundary noise complies with ambient noise use area standards. At that time, Xiangyi, as the only hotel representative, introduced her experience at the Hangzhou Environmental Management System Working Conference. The hotel has not only achieved good environmental performance and reduced operating costs, but also greatly improved employees' environmental awareness and work quality, established a good social image, and enhanced market competitiveness.
2. Create a green hotel, advocate green consumption, green and sustainable development, and improve the energy saving effect of the hotel.
Xiangyi has been actively involved in Zhejiang Province’s first green hotel certification event since the end of 1999. In its green creation work, Xiangyi has continuously deepened green business concepts and management, improved green service measures, and established Xiangyi The hotel has a green brand image, and implements the Zhejiang Provincial Tourism Bureau's "Notice on Carrying out the Zhejiang Province Green Hotel Certification Work" and the Zhejiang Province Green Hotel Local Standard (DB33/T3262001) "Green Hotel Certification Rules" and constantly focuses on energy-saving management, environmental protection, and reduction. In terms of material consumption, provision of green products and social, environmental and economic benefits, the hotel won the title of "Green Hotel" in Zhejiang Province with high scores in 2003. At the same time, it effectively promoted the hotel's energy conservation and the development of various tasks. In terms of energy-saving management, the hotel has established a classified ledger for energy consumption equipment and a ledger for energy consumption measurement instruments. Water, electricity and steam metering instruments have been installed in places managed by zones. Regarding energy consumption of water, electricity, and gas, there are monthly comparison, analysis, and recommendation reports on the hotel's total and each department's energy consumption. Business departments such as catering, guest rooms, and recreation departments have energy consumption quotas, assessment systems, and reward and punishment measures. Reduce material consumption. Guest rooms reduce the consumption of disposable guest supplies. Reduce disposable packaging supplies. According to the large amount of office paper and daily copying in the hotel, the hotel developed an office OA system on the one hand. On the other hand, it adopted a system that requires double-sided copying of documents and materials, and issued it to the clerks of each department for execution. It also implemented copying for guest services. The explanation method was used to suggest that guests use double-sided copying, which played a positive role. For the amount of detergents that are used in large quantities, the hotel has established a good ratio and collection system on the one hand, and adopted the method of exchanging empty cans to control the usage. On the other hand, the hotel recycles toothpaste and soap. Measures have also been formulated to control commonly used spare parts in the Office Supplies Engineering Department, thereby reducing usage and saving costs.
3. Technology and energy conservation, scientific conservation, and appropriate advanced technology and equipment make a qualitative leap in energy conservation.
Xiangyi actively explores new models in energy conservation. Energy conservation and consumption reduction have shifted from "running, rising, dripping and leaking" to seeking benefits from management, to using the latest technology and seeking benefits from science and technology. Xiangyi not only establishes and improves rules and regulations related to environmental protection, energy conservation and consumption reduction, but also strengthens energy conservation management. Focusing on the energy consumption of electricity, oil and water in the hotel, the hotel has established various accounts of energy consumption equipment, installed sub-meters for water, electricity and steam, and analyzed energy consumption quotas and assessment systems. Continuously reduce material consumption. At the same time, we also pay attention to the timely application of the latest science and technology, dare to invest, and focus on energy conservation and consumption reduction from the source, so that energy conservation and consumption reduction can go from eliminating "runs, leaks, drips, and leaks" to using scientific and technological means to create benefits with science and technology, and have achieved great results. effectiveness. In 2002, the air-conditioning host inverter was purchased and installed by paying for the goods with electricity-saving money. Purchased and installed 4 CGI intelligent inverters for chilled water pumps, cooling water pumps, air-conditioning secondary water pumps, and air-conditioning hot water pumps. Energy-saving refrigeration units are used through the central air-conditioning system. The water pump flow system adopts variable flow adjustment technology, and the wind cabinet adopts variable air volume adjustment technology. The new technology and energy-saving technology saves 330,000 kilowatt-hours of electricity annually and saves costs of 290,000 yuan. The equipment investment will be recovered from the electricity saving money in two years. The hotel also invested more than 300,000 yuan to establish an office OA system, which not only improved the management level and work efficiency, but also saved 50,000 pieces of office paper annually. At the same time, the hotel also invested 60,000 yuan to install a 3 cubic meter hot water storage tank system, and invested 140,000 yuan to build a boiler flue gas waste heat recovery system and a laundry room and restaurant steam flow monitoring system, which provided the basis for saving more than 100 tons of fuel in 2004. Material guarantee has effectively improved the effectiveness of Xiangyi's energy saving and consumption reduction work.
4. Concept innovation, daring to be the first, and energy conservation require us to actively integrate into the era of rapid advancement and change and win the opportunity for development.
In 2001, Xiangyi took the lead in setting up an online sales center in tobacco hotels in the province. Without increasing sales staff and sales expenses, it adopted the method of sharing with the website in advance. Online booking has been booming for many years. Successfully ranked at the forefront of hotels in the province, and developed into the number one hotel customer in 2004. Xiangyi combines the current domestic network development situation and makes full use of various travel booking websites to serve us for mutual benefit and common development. It has established good cooperative relations with more than a dozen large-scale professional hotel booking websites around the world, and has especially successfully cooperated with travel websites such as "Ctrip.com", "Shangzhixing" and "Shanghai Holidays". In this way, Xiangyi has sold more than 25,000 houses online in the four and a half years since it launched online room booking, creating a revenue of nearly 10 million yuan. Xiangyi now uses OA for office use, electronics for greeting cards, and recent catering sales promotion information has also started to send group text messages.
Service innovation also implies win-win results in energy conservation and conservation. Since last summer, the eyes of all the guests entering Hangzhou Xiangyi Hotel have brightened up. The dark and heavy suits that were originally introduced by foreign-funded hotels as a symbol of high-star standards have disappeared, and have been replaced by waiters’ light-colored short-sleeved suits. Even the management The personnel also changed into short-sleeved shirts. "Let our feelings be synchronized with the feelings of our guests." Therefore, it has become a conscious action for everyone to increase the air conditioner temperature by 1-2 degrees in Xiangyi.