白小姐四肖必选一肖图

Specific case analysis

2018-07-09
1. Take the water situation of corporate dormitory as an example:
Your company has 1,000 employees. According to your company ’s requirements, the solar central hot water system is adopted. The original oil-fired boiler is used for auxiliary heating in rainy and rainy days. The average daily hot water consumption per person is designed to be 50㎏. = 50000㎏. See the following table for details:


name

Item

 

Staff dormitory building

Number of hot water users

1000 people

Water standard

(人·日) 50kg (person · day)

Hot water demand

50000kg

Way of using water

Rain shower

Hot water supply temperature

℃以上 Above 60

Total Daily Water Consumption

50000kg

Water time

Timed supply by period


2. User resources:
1) User information: The hot water users of this project are located in the Suzhou area of Jiangsu Province, with a north latitude of 30 ° 47′-32 ° 2 ′ and a longitude of 119 ° 55′-121 ° 20 ′.
2) Weather resources: Suzhou average annual temperature is 15 C °, annual average sunshine hours are 2500-2800 hours, annual exposure dose is 5121.36MJ / m2, and average daily exposure dose is 14.28MJ / m2; according to Suzhou area 1985, 1998 In 2002, 2005 and 2005, the actual sunshine data in urban areas showed that the average number of days without sunshine was 50 days per year, and the average number of days with sunshine less than 2 hours per year was 120 days. The total number of days converted into no sunshine was about 60 days. Therefore, the number of days without sunshine in Suzhou in the whole year should be 50 days (the number of days without sunshine) + 60 days (the total number of days without sunshine converted from the number of days without sunshine for 2 hours) = 110 days (the number of days without sunshine) The weather is fine and sunny; according to your company's actual situation, the solar central hot water system consumes about 110 days per year (auxiliary equipment operation), while the other 255 days of solar energy can completely supply qualified hot water.
3) User requirements: The normal water supply period is 24 hours. The all-glass vacuum tube horizontal row header heat collector is installed on the housing surface of the staff dormitory building to realize an integrated structure and the entire system runs automatically.
3. Overall design composition: The entire solar system is composed of two parts.
1) The solar heating cycle is set as a hot water storage tank.
2) Auxiliary heating part (the auxiliary heating equipment is divided into Party A's original gas boiler), which is set as a constant temperature water tank.
4. Objective: To ensure that hot water can be supplied in the 24-hour hot water tank. The solar heating cycle system adopts the design principle of "constant temperature and fixed quantity" to maximize the use of solar energy and minimize the use of auxiliary heat sources, thereby saving energy.
5. Control: The entire solar water heating system is controlled in a control cabinet. The system runs completely automatically, and the auxiliary heating can be switched to manual. The operating parameters shall be determined after coordination between the (user) parties.

Suzhou Weisuo Thermal Energy Equipment Co., Ltd. All rights reserved. Su ICP No. 123456789