New energy vehicle development trend analysis report
The development of new energy vehicles (NEVs) is an important trend in the global automotive industry, driven by the need for environmental protection, energy security considerations, and technological advances. The following is an analysis report on the development trend of new energy vehicles. 1. Introduction With the increasingly serious problem of global climate change, reducing greenhouse gas emissions has become a common concern of the international community. As one of the main sources...
Market situation analysis of home appliance air conditioning
Home appliance air conditioning market refers to the market of home air conditioning products, including central air conditioning and split air conditioning two categories. With the improvement of people's living standards and the popularity of air conditioning products, the home appliance air conditioning market has shown a steady growth trend. Key features of the home appliance air conditioning market include:
1. Huge market scale: due to the warming climate and people's demand for...
What is the technical difficulty of sealing the terminal?
The difficulty of the production process of the sealed terminal depends on its design complexity, material selection, production equipment and technical level and other factors. In general, the production process of sealed terminals is relatively complex, requiring precision processing equipment and processes to ensure their sealing performance and reliability. In the production process, precision machining, assembly and testing are required, and the quality of materials and processing...
Why are China's new energy vehicles so popular?
China's new energy vehicles are so popular, even more than many foreign brands, mainly for the following reasons:
1. Government support: The Chinese government has been committed to promoting the development of new energy vehicles by introducing a series of policies and subsidy measures to encourage consumers to buy new energy vehicles and promote the development of the new energy vehicle industry. 2. Environmental awareness: With the increasingly serious environmental pollution problem and the...
Technical analysis and prospect of electric compressor for new energy vehicles
With the enhancement of environmental awareness and the popularity of new energy vehicles, electric compressors, as an important part of new energy vehicles, have gradually received people's attention. An electric compressor is a device that drives the compressor to work through an electric motor and is used to compress the gas into a liquid or high pressure gas. Its working principle is mainly through the motor to drive the compressor to rotate, the gas is sucked into the compression chamber,...
Central air-conditioning differential pressure bypass valve introduction
Differential pressure bypass valve self-contained pressure bypass valve and electric pressure bypass valve 2 kinds. Electric pressure bypass valve By controlling the opening of the pressure bypass valve to control the bypass flow of chilled water, so that the pressure difference between the supply and return mains constant. Widely used in the central air conditioning set between water separators, heat pump back and forth between, can effectively keep the equipment is not damaged. Electric...
Why pump cavitation occurs?
First, the causes of cavitation Cavitation is caused by the liquid vaporization, the liquid molecules escape the liquid surface, a process of gas molecules, known as "vaporization." The degree of vaporization of liquid pressure and the size of the high and low temperature. Dissolved in the liquid gas, pressure and temperature changes will be released, the formation of cavitation. When the internal pressure of the liquid drops below the saturated vapor pressure of the liquid at the temperature,...
Check valve technical parameters
Clamp check valve, also known as counter-flow valve, check valve, back pressure valve, check valve. This kind of valve is automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, which belongs to an automatic valve. Check valve for piping systems, its main role is to prevent media backflow, to prevent the pump and its drive motor reversal, as well as the container media release. Check valves are also used on lines where the pressure may rise to a...
Brief description reducer what does it mean
Speed reducer, he is actually a power transmission mechanism itself does not produce power, its role is the use of gear size and speed converter, the motor (motor) to reduce the number of revolutions to their desired number of revolutions; and get more Large torque mechanism. In the current institutions for the transmission of power and movement, the scope of application of reducer is quite extensive. What is reducer in the end? I believe many people are the first time I heard that there may...
How does the circulating pump work?
Circulating pump refers to the device in the conveying reaction, absorption, separation, absorption liquid regeneration circulating fluid pump. Commonly used single-stage centrifugal pump. Circulating pump flow medium size, stable operating conditions, the pump flow changes smaller. 1, circulating pump works by rotating the inlet and outlet pressure difference, the water cycle. The pump used is called the circulation pump, for example, the hot water in the plumbing heating pipe is circulated by...
Analysis of the Key Points and Difficult Points of ERP Implementation in Pump Industry
1 Introduction Economic globalization and the arrival of an era of diversified markets require that enterprises must establish an efficient and dynamic rapid response system. Informatization is an inevitable choice for enterprises and a weapon and means to enhance the competitiveness of enterprises. However, the introduction of ERP system in the enterprise process, the implementation is an extremely crucial and most easily overlooked link. Because the success or failure of the implementation of...
High temperature control valve selection
High temperature control valve is the working temperature is greater than 450 ℃ valve. Can be divided into 450 ~ 600 ℃, 600 ~ 700 ℃, 750 ℃ three categories. What are the main problems usually involved in high temperature control valve? Severe thermal expansion and contraction problems, so that the guide gap, the valve plate rotation due to expansion of the gap to reduce or even become an interference, and thus stuck. Under high temperature, the creep of the material leads to the decrease of...
Ceramic double gate valve characteristics and scope of use
Ceramic double gate valve, also known as ceramic parallel double gate valve or dry gray valve, is a kind of ceramic gate valve. Therefore, its structure and working principle consistent with the ceramic gate valve, the opening and closing body (valve plate) by the valve stem to move the valve seat sealing surface for lifting movement, can be connected or cut off the fluid channel. When the valve is partially open, eddy current is generated on the back of the ram, easily causing erosion and...
Purchase should pay attention to the standard problem of pneumatic valve
Pneumatic valves are generally in the international arena standard, it is also more convenient and secure procurement of buyers. However, although the domestic pneumatic valve is also a national standard, but due to the different requirements of the reform market, domestic manufacturers to meet customer needs, each manufacturer based on the national standard, made the appropriate changes and innovations to adapt to different Better use of pneumatic valve environment. So to remind the majority...
Pneumatic actuator repair tips
Pneumatic actuator repair tips Pneumatic actuator repair tips I. Overview Pneumatic actuators with oil-free compressed air as the driving force to actuate the valve or baffle action. There are the following types: pneumatic control valve, solenoid valve, pneumatic long stroke electric actuator. Second, pneumatic control valve Pneumatic valve by the pneumatic actuator and control valve of two parts. Pneumatic actuators with oil-free compressed air as the driving force, to accept the gas signal...
Knife gate valve characteristics and purchase advice
Knife gate valve, also known as knife valve, knife gate valve, slurry valve, mud valve, its opening and closing pieces is the gate, the direction of movement of the gate and the fluid perpendicular to the cutting edge by cutting the fiber material knife gate Medium, the gate has two sealing surface, the most commonly used gate valve form the two sealing surface wedge, wedge angle varies with the valve parameters, usually 5 °, wedge gate valve gate can be made into a The whole, called the rigid...
Thermostatic mixing valve use and debugging safety precautions
Mixed water thermostatic valve is a heating system supporting products, widely used in electric water heaters, solar water heaters and central heating systems. And can be applied to electric water heaters and solar water heaters, users can adjust their own hot and cold water mixing temperature as needed, the required temperature can quickly reach and stabilize, to ensure that the water temperature is constant, and not subject to water temperature, flow, water pressure changes Affect the bath...
Internal grinder in the process of using the program and maintenance
Internal grinder relative to lathes, milling machines, etc. using CNC system later, because of its special requirements of CNC system. In recent decades, with CNC technology, continuous grinding wheel dressing, automatic compensation, automatic exchange wheel, multi-table, automatic transmission and clamping workpieces and other operating functions to be achieved, CNC technology in the surface grinder and internal grinding gradually universal . Internal grinder use the program 1. Check the oil...
Test chemical shielding pump method
Chemical shield pump repair method is: Disassemble the shield pump: the first part of the clean-up, and then make an apparent inspection of them, whether there is any exception. Then measure the size of the key parts, electrical inspection of the motor windings (1) Mechanical inspection Measure the bore diameter of graphite bearings and the shaft diameter of bushings and check the finish of their mating surfaces. Such as graphite bearings and bushings with clearance over the provisions of...
Ordinary household valve selection expert advice 5 Note 1
When the purchase of visual valves, the surface should be no blisters; plating surface should be uniform, should pay attention to whether there is peeling, cracking, scorching, exposed, flaking, dark spots and obvious pitting and other defects; spraying surface tissue should be fine, smooth Uniform, no sagging, exposed defects. {TodayHot} Civil valves commonly used in ordinary households commonly used gate valve, ball valve, triangular valve and other forms, usually iron or copper. As the...
Valve body parts suitable for working temperature introduction
Valve body parts suitable for working temperature introduction 1 Overview Valve design and material selection must be one of the key issues to consider the working temperature of the valve. In order to regulate the appropriate working temperature of the valve body material, suitable working temperature and related to the valve body material for petrochemical, chemical, fertilizer, electric power and metallurgical industries in China from the material properties of various types of valve steel...
Control valve characteristics and selection method
Regulating valve is a commonly used actuator in automatic control system, which is used to adjust the flow of controlled object. Correct choice of regulating valve, is to adjust the quality assurance system control. On the composition of the control valve, flow characteristics were described in detail, and gives the control valve selection method and should pay attention to the problem. 0 Foreword Regulating valve is a commonly used actuator in automatic control system, which is the main...
