Application of Temperature and Humidity Recorder in Strawberry Cultivation Management
Choosing greenhouses to grow strawberries and other fruits has become the consensus of many regions. With the help of greenhouse facilities, it can resist the external wind and rain and reduce disaster losses. It is an effective means to increase the yield and quality of strawberry cultivation. In order to further improve planting efficiency, it is necessary to pay attention to the management of environment such as temperature and humidity in the cultivation management of strawberry in the facility. The application of professional instruments such as temperature and humidity recorder can provide accurate and real-time environmental data for managers and guide the strawberry cultivation process. Science and humidity management in the science.
The temperature and humidity recorder can be applied to all stages of strawberry cultivation management in the facility. It can play an important guiding role in detecting and managing the room temperature and humidity of the shed according to the needs. Taking the temperature and humidity management of the strawberry cultivation film as an example, in order to ensure the normal growth of the strawberry crop, it is necessary to ensure that it is in a comfortable temperature and humidity environment. Generally, strict temperature and humidity standards are required at this time, for example, In the 7-10 days after the film shed, the high temperature of 25-28 should be maintained during the day, and the maximum temperature should not exceed 35 °C; the humidity in the shed should be increased appropriately at the initial stage of film heating, and the relative humidity of the air should be 80%. ~90%, the relative humidity in other periods should be controlled at 70% to 80%. During this period, it is necessary to clearly understand the changes in temperature and humidity in the greenhouse, so as to take timely measures to control, and the application of the temperature and humidity recorder provides convenience for managers to carry out temperature and humidity management of the facility strawberry.
The strawberry crop is a relatively fragile crop, and the requirements for the refinement of temperature and humidity are relatively high. The temperature and humidity are too high or too low to have an adverse effect on its growth. The temperature and humidity recorder is used to enhance the temperature and humidity during the strawberry cultivation process. Management and refinement and regulation are not only the performance of ensuring production safety, but also the specific practice of promoting strawberry facility cultivation to increase production and increase efficiency, which is of great significance for promoting industrial development.
Flanges are also called flange flange plates or flanges. A flange is an interconnected part between the shaft and the shaft, used for connection between the end of the tube; it is also used in the flange of the import and export of the equipment, for connection between the two equipment, such as the reducer flange. Flange connection or flange joint is a detachable connection between three parts, including flange, gasket and bolt, as a group of combined sealing structures. Pipe flanges refer to flanges used for piping in piping installations, and are used on equipment to refer to import and export flanges of equipment. There are holes in the flange, and the bolts make the two flanges close. The flange is sealed with a cushion.
Flanges are used in pairs. Low pressure pipes can be welded with flanges, and welding flange is more than four kg of pressure. Seal gaskets between the two flanges and fasten them with bolts. Different pressure flange thickness is different, they use different bolts. When the pumps and valves are connected with the pipes, the parts of these equipment are also made into corresponding flange shapes, also known as flange connections.
All the connecting parts that are closed at the same time with the bolt connection at the periphery of the two plane are generally called "flanges", such as the connection of a ventilated pipe, which can be called "flanged parts". But this connection is only part of a device, such as flange and water pump connection, it is not easy to call the pump "flange parts." Smaller ones, such as valves, can be called "flange parts".
Classification method:
1, according to the chemical (HG) industry standard: IF, Th, plate flat welded flange (PL), neck butt welding flange (WN), neck flat welding flange (SO), socket welding flange (SW), welding ring loose flange (PJ/SE), flat welded ring flanges (PJ/RJ), lining flange cover (BL (S)), flange cover (BL)
2, according to the petrochemical industry (SH) industry standard: screw flange (PT), butt welding flange (WN), flat welding flange (SO), socket welding flange (SW), loose sleeve flange (LJ), flange cover.
3, according to the machinery (JB) industry standard: whole flange, butt welding flange, plate type flat welding flange, welding ring plate type loose sleeve flange, flat welded ring plate type loose sleeve flange, flanged ring plate type loose sleeve flange, flange cover.
4, according to the national (GB) standard, the whole flange, threaded flange, butt welding flange, neck flanged flange, neck socket flange, butt neck flanged flange, plate type flanged flange, welding ring plate flanges, flat welded ring plate flanges, flanged ring plate flanges, flanges cover.
Texture of material:
WCB (Tan Gang), LCB (low temperature Tan Gang), LC3 (3.5% nickel steel), WC5 (1.25% chromium 0.5% molybdenum steel), WC9 (2.25% chromium), C5 (5% chromium 0.5% molybdenum), C12 (9% chromium and 1% molybdenum), CA6NM (4 (12% chrome steel), CA15 (4) (12% chromium), CF8M (316 stainless steel), CF8C (stainless steel), CF8 (stainless stainless steel), CF8 (stainless steel) ), CF3M (316L stainless steel), CN7M (alloy steel), M35-1 (Meng Naier), N7M (Haast Ni alloy B), CW6M (Hasta nickel alloy C), CY40 (inco nickel alloy) and so on.
Connection mode:
Flange connection is the two pipes, fittings or equipment, first each fixed on a flange, two flanges, plus flanged pads, bolts fastened together, completed the connection. Some pipe fittings and equipment have their own flange, and also belong to flange connection. Flange connection is an important connection way in pipeline construction. Flange connection is easy to use and can withstand great pressure. In industrial pipelines, the pipes are small and low in the family, and flanged connections are not visible. If in a boiler house or production site, there are flanged pipes and equipment everywhere.
Type of flange connection according to connection mode can be divided into plate flat welding flanges, neck flat welding flanges, neck butt welding flanges, socket welding flanges, threaded flanges, flanges, flanges, flat welded ring flanges, ring groove flanges and flanges, large diameter flat flanges, large diameter and high necked flanges, eight character blind. Plate, welding ring loose flange and so on.
Scope of application:
Because the flange has good comprehensive performance, it is widely used in chemical, construction, water supply, drainage, oil, heavy industry, freezing, health, water heating, fire, electricity, space, shipbuilding and other basic projects.
Industrial Flange,Industrial Pipe Flange,Industrial Pipe,Steel Pipe Flanges
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