The heat preservation of the greenhouse is very high in summer, so all the vents around the vegetable greenhouse must be opened. If the temperature is too high, the top of the vegetable greenhouse can be covered with sunshade net to cool down. In the sunny day, the temperature in the shed should be measured in time. As soon as the temperature rises to more than 30 ℃, open the ventilation vents on both sides and adjust the vents to stabilize the temperature in the shed at 25 ℃-30 ℃ as far as possible. Take light enhancement measures to increase light intensity and prolong light time; select agricultural film with high light transmittance and wipe it frequently to ensure that the surface of agricultural film is clean; cover white plastic film; hang reflective curtain on the back wall; prune and pick leaves in time to enhance the light transmittance of the field.
The energy consumption is slightly higher. Therefore, the multi-span greenhouse in the northern region needs to do a good job of heat preservation. Carry out R & D and design in thermal insulation. How to build a three-span greenhouse before determining the use of the multi-span greenhouse for the project, we should first consider the orientation of our region, the climate characteristics, the use of the glass greenhouse. For example, in the glass greenhouse for planting and seedling raising in the northern region, the important work is to maximize the thermal insulation performance of the greenhouse under load. We can add an internal thermal insulation system on the top floor of the greenhouse. The glass around the greenhouse should use double-layer hollow glass as much as possible, and for example, to build a glass greenhouse in the northwest, such as electric sunshade system, electric ventilation system and so on. By adding terminal equipment of the Internet of things, this kind of multi-span greenhouse can automatically start and stop the greenhouse equipment by issuing data acquisition and analysis instructions.
The structural design of frame cover fan is adopted to ensure the tightness and waterproof between frame fans, as well as to fully show the permeability of doors and windows on the basis of high safety factor and strong wind pressure resistance of the products, so that the field of vision is more open and the household space can be extended. Under the premise of design requirements, adding external sunshade, awning and appropriately increasing the length of southward balcony can play a certain sunshade effect. Heat-reflecting fabric curtains coated with metal film are arranged on the inside of the window, which has a decorative effect on the front, forming a less mobile space layer about 50mm thick between the glass and the curtains. In this way, a good effect of thermal reflection and thermal insulation can be achieved, but the direct lighting is poor and should be made into a movable type. In addition, a
Practical central console with a variety of storage space: the central console and dashboard equipped with a multi-functional black-and-white display computer, the current vehicle mileage, driving time, external temperature and other important real-time information at a glance. Comfortable roof lighting system: the four reading lights in the passenger cabin provide enough light for passengers to read without dazzling the driver. Passenger cabin side window sunshade curtain: the standard sunshade can protect the passenger cabin from the dazzling sunlight and maintain privacy.
It is necessary to do a good job of heat preservation at night and ventilation and humidity reduction during the day. The night temperature in early spring is still low, which needs to be covered with grass curtain, sunshade net, non-woven fabric or multi-layer mulching; the temperature rises rapidly during the day, coupled with the current high humidity in the field, so it is necessary to timely control and adjust the indoor air humidity and temperature in the shed. On a sunny day, after the temperature picks up after 08:30, ventilation should be carried out gradually, and the mulch such as non-woven fabrics should be removed in time to increase the light; the shed should be closed and the warmth should be covered before 4 p.m. In case of cloudy and rainy weather, it is still necessary to properly ventilate during the day to reduce the humidity in the shed. In addition, in the alternate season of late winter and early spring, the weather changes greatly, so we should pay close attention to the weather changes to prevent the occurrence of late spring cold. After the middle of April, the average temperature is stable above 15 ℃, which can remove the inner shed, prolong the opening time of the outer shed, increase the light time and intensity, reduce the humidity in the shed, and control the occurrence and prevalence of diseases such as leaf mold and gray mold.
For example, they will use solar water heaters to use solar energy instead of electricity or gas to heat water. The solar water heater consists of a smooth collector on the roof and a preheated water storage tank. The liquid is pumped into the solar collector for heating and then sent back to the heat exchanger, using the heat of the liquid to heat the water in the preheating tank. This system not only ensures a large part of the hot water supply of the building, but also has the characteristics of low-cost operation. Designers can also choose high-performance glass and sunshades to solve sunshine and heat gain problems.
Auto parts this round also on a lot of stocks, the expansion is too great. It used to be one in ten, but now it really has to be one in a hundred. An interior piece, the best choice is Huayu, Huaxiang and so on also have part of the interior decoration business. Now there are many more. Dai Mei, Xinquan and Changshu Auto Accessories are all a little famous in the industry, and the interior accessories are subdivided. Xinquan, Changshu Auto Accessories focus on dashboards and door guards, and Daimi focuses on sunshades. There are also the new coordinates of precision cold forgings, Desai Xiwei in the field of automotive electronics, Golden Kirin for systematic friction parts, and Huada Technology for stamping parts. Too much, too much.
The interior has changed obviously, the central control panel has a flat layout, the long air-conditioning button panel is integrated in the lower frame of the central air-conditioning tuyere, and the horizontal bar decoration in front of the co-driver is intended to create a horizontal stretch of the new interior. The dashboard and multimedia system are integrated sunshade design, but the low-configuration version is a traditional mechanical instrument + simple multimedia system playback control panel, while the high-configuration version is expected to be equipped with a large-size dual LCD screen. In addition, electronic handbrake and automatic parking system are only available in medium and high positioning automatic models, while manual models are only equipped with mechanical lever handbrake, which is intended to ensure a lower price threshold.