Can anyone provide some relevant materials about the exhibition greenhouse?

The Shanghai Botanical Garden covers an area of ??81.86 hectares. It was formerly the Longhua Nursery built in 1954. It was officially opened to the outside world in April 1978. Since its establishment, it has received 10 million tourists. In 1996, it was rated as one of the favorite outing spots by overseas people, and in 2000, it was rated as a good place for "June 1st" in the new millennium.

The Shanghai Botanical Garden is a specialized garden integrating scientific research, popular science education, tourism and production functions. There are more than a dozen specialized gardens in the park, including bonsai garden, peony garden, osmanthus garden, rose garden, maple garden, pine and cypress garden, herbal garden, bamboo garden, and orchid room. The bonsai garden covers an area of ??4 hectares and has more than 2,000 exquisite bonsais represented by Shanghai style bonsai. It is one of the largest bonsai gardens in the world. The newly renovated Orchid Room covers an area of ??11,150 square meters. It is a large-scale orchid viewing and orchid cultivation place with a Chinese classical garden style. The "Orchid Room" plaque written by Zhu De himself hangs high above the lintel. The Orchid Room has collected a large number of famous orchids, nearly 300 varieties, presented by Chairman Zhu De, the famous patriotic general Zhang Xueliang and Japanese friends. The expanded orchid room is divided into three areas, namely a spray display area, a natural display area, and a courtyard display area, creating an original ecological environment for orchids.

The exhibition greenhouse under construction will be completed in 2001. After completion, it will cover an area of ??4,900 square meters, with the highest point reaching 29.4 meters. The interior landscape layout of the greenhouse is centered around the two themes of tropical rainforest and four-season garden, displaying more than 3,500 species of plants from all over the world.

In order to adapt to social needs and market needs, the Shanghai Botanical Garden has developed comprehensively from scientific research, landscaping and other aspects. Affiliated economic entities such as Shanghai Botanical Garden Greening Engineering Company, Shanghai Botanical Garden Bonsai Greening Management Company, Shanghai Botanical Garden Greening Decoration Company, and Shanghai Botanical Garden Greening Maintenance Company use their own advantages to devote themselves to the greening cause of Shanghai.

The lotus is an older generation in the plant family. It is never afraid of the heat and loves to "fight high temperatures." In the lotus pond of Shanghai Botanical Garden, every July and August, there will be a summer style of pink balls surrounded by green lotus leaves. It's a pity that such beauty only lasts for a moment. An old man who is used to doing morning exercises by the river pond told reporters that admiring lotus flowers in the early morning is a beautiful enjoyment. The shape and color of lotus flowers may be different at each moment.

The Shanghai Botanical Garden has as many as 50 varieties of lotus, including large red single-petal lotus such as West Lake Red Lotus, large pink double-petal lotus such as Shouxing Peach, thousand-petal lotus, hybrid single-petal multi-color lotus and Small and medium-sized double-petal lotus, etc. In particular, the thousand-petal lotus is very beautiful. It has thousands of petals with different colors, just like the graceful lotus fairy descending to the earth.

The lotus experts in the park said that the lotus flowers are the most beautiful around 7 o'clock in the morning, so you must go early to enjoy the lotus flowers. Because it is cooler in the morning, the ultraviolet rays in the sun are not as strong, so the colors are the most vivid. In the afternoon, under strong ultraviolet radiation, the color of the petals will become lighter, and most lotus flowers will also close their petals. What's even more amazing is that due to genetic mutations, lotus flowers can appear in rare shapes such as double-leaf lotus and double-peduncle lotus. Beautiful scenery is rare. In order to capture the most beautiful moment, photography enthusiasts came early in the morning for fear of missing this rare scenery.

Flower language: innocent love, steadfastness and elegance.

The miracle fruit is native to tropical areas of West Africa. It contains a glycoprotein that can change the taste of food. After eating, the function of the taste bud receptors on the tongue is temporarily disrupted by the glycoprotein. The taste bud receptors sensitive to sour taste are temporarily paralyzed and inhibited, while the taste bud receptors sensitive to sweet taste are temporarily paralyzed and inhibited. But it was enlivened.

The exhibition greenhouse, known as the "Tropical Rainforest", covers an area of ??4,900 square meters and is nearly 30 meters high. The city's landscape is divided into two themes: tropical rainforest and four-season garden, with more than 3,500 tropical plant species. More than a dozen 15-meter-tall king palm trees line up at the entrance to greet visitors. They look like giant bowling pins. Some even jokingly call it the "missile" tree. On the left side of the king palm forest is a betel nut forest. The Li people of Hainan regard it as an auspicious fruit that symbolizes love. When a man proposes, he calls it "Chu betel nut", and when a woman gets married, she calls "eating a certain family's betel nut." The couple must eat betel nut with betel nut. Leaves represent eternal companionship. The bodhi tree where Sakyamuni sat in meditation and became a Buddha, the giant "ringed banyan tree" weighing 20 tons and 14 meters high, longan trees, lychee trees, jackfruit and other fruit trees will surely open your eyes, mandala flowers, cattleya , Strelitzia reginae, pitcher plants, mimosa, etc. will let you appreciate the charm of the plant kingdom.

Walking into the rainy and misty tropical rainforest, look up at the towering trees, smell the fragrance and stop to see the graceful flowers of the rainforest, let the huge fruits brush your thin waist, and let the strangled old trees and new branches move away Pass your pupils - this is an excellent place for popular science education, where children can appreciate the magical creation of nature and realize the importance of environmental protection. It will also inspire them to study diligently and have the courage to explore the world of science. Ambition!

1. Overview

The Shanghai Botanical Garden Exhibition Greenhouse is located in the beautiful Shanghai Botanical Garden. It has a total construction area of ??4900m2 and the highest point of the building is 29.4m. It is a large exhibition greenhouse. The entire building is a single-story open house structure. The roof and curtain wall are all made of single-layer grids. In order to meet the lighting requirements for plant growth in the greenhouse, the greenhouse roof and side walls are all made of single-layer transparent glass curtain walls. The total area of ??the glass curtain wall is 8816 m2. .

The exhibition greenhouse consists of a tropical rainforest area, four-season garden, fruit bar, VIP room, and auxiliary rooms (see Figure 1). The construction area of ??the tropical rain forest area is 2150m2, and tropical and subtropical plants native to China and with high ornamental value are planted. The construction area of ??the Four Seasons Garden is 1880m2, and the plants planted are mainly tropical ornamental flowers and trees with different flowering periods. The tropical rainforest area and the four-season garden exhibition area are arranged separately, but the internal space is not separated.

The energy center consists of a power transformation and distribution station, a refrigeration machine room, a boiler room and a water pump room. The energy center is located outside the exhibition greenhouse and is located on the north side of the greenhouse.

2. Design standards

2.1 Outdoor design parameters

The outdoor design parameters in summer are: the calculated dry bulb temperature of the air conditioner is 34°C, the wet bulb temperature is 28.2°C, and the ventilation Calculate the dry bulb temperature to be 32°C.

In winter, the extreme minimum temperature in Shanghai is -10.1℃, the average extreme minimum temperature is -6.7℃, the calculated dry bulb temperature for air conditioning is -4℃, and the calculated dry bulb temperature for heating is -2℃. Since tropical plants have high requirements for ambient temperature, short-term low temperatures will affect the growth of tropical plants and even cause some tropical plants to suffer disaster. Therefore, when selecting outdoor temperature calculations, this special requirement should be considered. The dry bulb temperature calculated for heating is the daily average temperature that does not guarantee five days over the years. The dry bulb temperature calculated for air conditioning is the daily average temperature that does not guarantee one day over the years. The heat load results obtained by using these two calculated temperatures are too small and difficult to meet the needs of greenhouses. In terms of internal temperature reliability requirements, if the extreme minimum temperature is used, the reliability is the highest, but the installed capacity of the equipment is large, the equipment utilization rate is low, and the initial investment is high. Therefore, the extreme minimum temperature average is selected in this project. The value is used as the heat load calculation parameter, and the margin coefficient of 1.3 is considered when determining the boiler capacity. The system has a certain degree of economy and greater reliability.

2.2 Interior design parameters

The ambient temperature and humidity required by tropical plants should be uniform, especially during hot summer and severe cold. The suitable temperature for plant growth is about 25℃, and the humidity is about 80%. In a tall space with an all-glass curtain wall structure covering an area of ??4000m2, maintaining a constant temperature of 25°C and a constant humidity of 80% throughout the year is technically difficult to achieve and will cause a huge waste of energy. Therefore, the determination of indoor temperature, while meeting the basic requirements for plant survival, should also consider factors such as the difficulty of technical implementation and energy saving. Generally speaking, the greenhouse temperature should be kept above 15°C throughout the year. If it is lower than 15°C, plants may suffer from physiological disorders. After considering various factors such as plant growth requirements, energy saving, and ease of technology implementation, the obtained parameters such as temperature and humidity are listed in Table 1.

Table 1 Main indoor design parameters

Room name

Summer

Winter

Fresh air volume

/[m3/（h.人）]

Dry bulb temperature/℃

Relative humidity/%

Dry bulb temperature/℃

Relative humidity/%

Tropical rainforest area

≤35

≥75

≥15

p>

≥65

-

Four Seasons Garden

≤32

≥50

≥ 15

≥50

-

Fruit bar, VIP room

26

≤65

18

≥35

30