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• 2024-12-23 23:05:09 HS code verification in Middle Eastern marketsHS code verification in Middle Eastern marketsStep 1: Visit official website First, HS code verification in Middle Eastern marketsopen your browser and enter the official website address (spins106.com) of . HS code verification in Middle Eastern marketsYou can search through a search engine or enter the URL directly to access it.Step *List of contents of this article:1, How to design a perfect cooling system for the mold2、 What is t
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• What is the design of the battery cooling system for new energy vehicles?
• 3, What are the key points that should be paid attention to in the actual design of the air conditioning cooling water system
• 4.< A href='#Design and operation of circulating water cooling system' title='Circulating water cooling systemUnified design and operation'>Design and operation of circulating water cooling system
• 5, Does it meet the requirements when designing a circulating cooling water system?

How to design a perfect cooling system for the mold

Cooling and shaping stage. The plastic is pressurized in the mold cavity to prevent the plastic from flowing back until the plastic cures and the pressure in the cavity disappears. Cooling and shaping time accounts for the largest proportion of a production cycle.

When designing a cooling system, the characteristics of the material need to be considered. For materials with high shrinkage, cooling pipes should be set up along the shrinkage direction of the part as much as possible. It is better to use a cooling pipe with multiple and thin than a cooling pipe with a single root and a large diameter.

Definition: The temperature of the mold directly affects the molding quality and production efficiency of the plastic parts. Therefore, a temperature control system needs to be added to the mold to meet the ideal temperature requirements. The temperature control system can be divided into cooling system and heating system according to different situations.

The cooling tower of the injection molding machine cooling water system has a better effect. The mold cooling water is produced according to what raw materials you choose. The mold temperature machine can be selected for high temperature, and the water chiller can be selected for low temperature and fast cooling. The concept of injection molding machine: injection molding machine is also known as injection molding machine or injection machine.

The most important point in blow molding mold design is to design an effective cooling system. In order to achieve maximum cooling, the cooling channel should be as close to the mold cavity as possible. Unlike the extrusion blow mold, the cooling medium flow channel of the injection blow mold is usually perpendicular to the mold cavity to minimize the width of the mold.

The cooling water of the cooling system of the injection mold, under normal circumstances, the water is constantly circulating when working.

What is the design of the battery cooling system for new energy vehicles?

1. The power battery cooling system has air conditioning circulation cooling, water cooling and air cooling. Air conditioning circulation cooling type In high-end electric vehicles, there is a refrigerant circulation circuit connected to the air conditioning system inside the power battery. The power battery cooling system of plug-in hybrid models is shown in the figure below.

2. The water-cooled power battery cooling system uses a special antifreeze to flow in the antifreeze pipe inside the power battery to transfer the heat generated by the power battery to the antifreeze, which will reduce the temperature of the power battery. Take Rongwei E50 electric vehicle as an example, share the power water cooling system.

3. In the motor design of electric vehicles, the waterway can make the cooling liquid in contact with every part of the inner surface of the motor. The flow design is to enable the coolant to better take away the heat of the most prone parts of thermal failure, so the design needs to be specially considered.

4. Several cooling methods of power lithium battery packs for new energy vehicles: At present, the thermal management of the power lithium battery pack system can be divided into four categories: natural cooling, air cooling, liquid cooling and direct cooling.

What are the key points that should be paid attention to in the actual design of the air conditioning cooling water system

When encountering abnormal pressure, it should first consider whether the system is full of water. At this time, you can check whether there is water in the expansion tank. The expansion tank is located at the highest point of the system, which has the function of accommodating the expansion of frozen water in the system and replenishing water to the system.

In any case, the flow rate of the frozen water system pipeline should not be greater than 0m/s. When the system is running or when it is first turned on, it is inevitable that the water will be mixed with air, so an automatic air valve should be installed in the system pipeline according to the pipe diameter. Special attention should be paid to the accumulation of air at the top of the riser, which hinders the normal flow of frozen water. An automatic ventilation valve must be installed.

c) Insulation design of air conditioning system. The insulation practice of pipes, air ducts, equipment and valves must be explained in the design drawing of the insulation system, and the materials and construction methods of the thermal insulation layer, steam barrier layer, protective layer, anti-corrosion layer and waterproof layer must be explained in detail.

Notes on the design of the central air conditioning full water system: (1) Requirements for pipes: Generally, welded steel pipes are mostly used for air conditioning and return water supply trunk pipes. When an open-type frozen water circulation system is adopted, the frozen water supplyThe return water pipe should be connected with galvanized steel pipe, and the branch pipe connected to the fan coil pipe should be connected with galvanized steel pipe wire buckle.

The water replenishment of the air conditioning water system should be treated with softened water, and the system for cooling only in summer can adopt an electronic water treatment instrument; the system water replenishment measures 2% of the water capacity of the system; the water replenishment point should be set in the suction section of the circulating water pump. The problem that should be paid attention to in the terminal design is the air outlet design of the wind plate of the air duct, as shown in the attached figure.

The main principle of air conditioning pipeline system design: degass and sewage. An exhaust valve or exhaust pipe should be set up at the top of the water system to prevent the formation of gas plugs; at the bottom (root) of the main riser, there should be a branch pipe to exclude dirt and a valve; at all low points, drainage pipes should be set up. Heat expansion, cold contraction.

Circulating water coolingThe design and operation of the system

Cooling flow refers to the nominal flow rate under the design conditions and meteorological parameters. When selecting, according to the thermal characteristic curve of the cooling tower, combined with the amount of circulating cooling water, water temperature and local meteorological conditions, the model and number of units selected are determined after calculation, and the suitable When the reserve coefficient meets the requirements of the safety guarantee rate of the circulating water system.

To design a cooling water circulation system in a chemical plant, first of all, determine the flow rate of the circulating water pump according to the requirements of the production process. According to the general plan of the factory and the dominant wind direction of the factory location, determine the location of the cooling water tower and the direction and laying method of the circulating water pipeline. Determine the pipe diameter of the circulating water pipe according to the flow rate of circulating water.

The data on water temperature requirements according to different production processes are listed as follows:The production process requires that the inlet water temperature of the first circulating water system is not less than 50℃ and not higher than 70℃, and the error is allowed to be controlled at ±5℃. There are two sets of circulating water pump systems, but the cooling effect is very poor, and now it wants to be transformed.

The water cooling system includes two modes: large cycle and small cycle. The small cycle does not pass through the radiator, but only inside the engine, but when the temperature rises to a certain extent, the coolant flows into the radiator and circulates over and over again.

The open circulating cooling water system needs to use an open cooling tower as the main equipment, while the closed circulating cooling water system needs to use a closed cooling tower or air cooler as the main equipment.

Does it meet the requirements when designing a circulating cooling water system?

Ensure continuous water supply. The circulating cooling water system of the lithium battery factory must set up backup pumps and other continuous water supply measures, and the cooling water supply should not be interrupted. Determine water temperature, water pressure and other indicators.

.3 The design of industrial circulating cooling water treatment should meet the requirements of safe production, environmental protection, energy conservation and water conservation, and facilitate construction, maintenance and operation management. 0.4 Industrial circulating cooling water treatment design should actively and carefully adopt new technologies on the basis of constantly summarizing production practice experience and scientific experiments.

Business license and design qualification. Have a valid legal person business license. The bidder should be qualified to design and manufacture circulation coolers for air conditioning cooling water systems.

List of contents of this article:

• 1,HS code verification in Middle Eastern markets How to design a perfect cooling system for the mold
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