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    Electronic expansion valve

    Electronic expansion valve The electronic expansion valve is a speed type and is used in an intelligently controlled inverter air conditioner. The advantages of the electronic expansion valve are: large flow adjustment range; high control accuracy; suitable for intelligent control; can be applied to rapid change of high-efficiency refrigerant flow. Advantages of electronic expansion valve Large flow adjustment range; High control accuracy; Suitable for intelligent control; It can be applied to the rapid change of high-efficiency refrigerant flow. The opening of the electronic expansion valve can be adapted to the speed of the compressor, so that the amount of refrigerant delivered by the compressor matches the amount of liquid supplied by the valve, so that the capacity of the evaporator is maximized, and the optimal control of the air conditioning refrigeration system is achieved. The use of electronic expansion valves can increase the energy efficiency of inverter compressors, achieve rapid temperature adjustment, and improve the seasonal energy efficiency ratio of the system. For high-power inverter air conditioners, electronic expansion valves must be used as throttle elements. The structure of the electronic expansion valve is composed of three parts: detection, control and execution. According to the driving mode, it can be divided into electromagnetic type and electric type. The electric type is further divided into a direct-acting type and a decelerating type. The stepper motor with a valve needle is a direct-acting type, and the stepping motor with a valve needle through a gear set is a decelerating type.

    Recent related posts

    Electronic expansion valve

    06/14/2020

    Electronic expansion valve

    Electronic expansion valve The electronic expansion valve is a speed type and is used in an intelligently controlled inverter air conditioner. The advantages of the electronic expansion valve are: large flow adjustment range; high control accuracy; suita器2䀀ￜ皥䖒皦즠Ʋ煔क़㲈Ʋ䌁皦ᮔDž༬皧煞क़Ѐ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥

    Cold storage operation management and compressor common fault handling

    06/14/2020

    Cold storage operation management and compressor common fault handling

    Cold storage operation management and compressor common fault handling 1. Startup and preparations Before starting the machine, check whether the valves of the unit are in the normal starting state, and check whether the cooling water source is suffic器2䀀ￜ皥䖒皦즠Ʋ嫜ི㲈Ʋ䌁皦ᮔDž༬皧嫦ིЀ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥ب巠皱㙲皦忈皱੨皦柘皱즠Ʋǜ勁皦즠ƲبǜV /펔B䌁皦 ᮔDž'鱤džၜ먢䇨珵呈ᠾ뤂ᐱ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲᠾ랖僧Ѳ識�僬㣢ᐲ臆S㥲ᐲᬄğ

    Central air-conditioning unit classification

    06/14/2020

    Central air-conditioning unit classification

    Central air-conditioning unit classification The central air conditioning unit is the core part of the central air conditioning system. Reasonable selection of units is very important for a central air-conditioning project. Regarding the cooling mode and器2䀀ￜ皥䖒皦즠Ʋ煔क़㲈Ʋ䌁皦ᮔDž༬皧煞क़Ѐ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄

    Capillary

    06/14/2020

    Capillary

    The capillary tube is the simplest throttling device. The capillary tube is a very thin diameter red copper tube with a specified length. Its inner diameter is generally 0.5 to 2 mm. Characteristics of capillary tube as throttling device

    As the core system of the cold storage, what equipment does the refrigeration system contain

    06/14/2020

    As the core system of the cold storage, what equipment does the refrigeration system contain

    As the core system of the cold storage, what equipment does the refrigeration system contain Cold storage is a warehouse that uses mechanical equipment and other artificial refrigeration methods to achieve stable and low temperature. It is suitable for t器2䀀ￜ皥䖒皦즠Ʋ焬क़㲈Ʋ䌁皦ᮔDž༬皧然क़Ѐ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥ب巠皱㙲皦忈皱੨皦柘皱즠Ʋǜ勁皦즠ƲبǜV /펔B䌁皦 ᮔDž'鱤džၜ먢䇨珵呈ᠾ뤂ᐱ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲᠾ랖僧Җ識�僬㣢ᐲ臆S㥲ᐲᬄğ識理艏S杴 識

    20 core components of refrigeration and air conditioning

    06/14/2020

    20 core components of refrigeration and air conditioning

    1. Compressor It is the core of the entire air conditioning system and the source of system power. The power of the entire air conditioner is provided by the compressor. Compressors According to the compression method, positive displacement compressors器2䀀ￜ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔDž༬皧奖ིЀ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱

    [Maintenance case] BMW 520Li compressor clutch failure

    06/14/2020

    [Maintenance case] BMW 520Li compressor clutch failure

    [Maintenance case] BMW 520Li compressor clutch failure Model: F18. Driving mileage: 3000km. Fault phenomenon: The user reports that the vehicle's air conditioning system is faulty. Sometimes, the cooling effect of the air conditioner suddenly fails器2䀀ￜ皥䖒皦즠Ʋ焬क़㲈Ʋ䌁皦ᮔDž༬皧然क़Ѐ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥ب巠皱㙲皦忈皱੨皦柘皱즠Ʋǜ勁皦즠Ʋبǜ

    Common air conditioning host

    06/14/2020

    Common air conditioning host

    Common air conditioning host 1. Water-cooled chiller The water-cooled chiller belongs to the refrigeration unit part in the central air-conditioning system. Its refrigerant is water, which is called the chiller, and the cooling of the condenser is r器2䀀ￜ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔDž༬皧奖ིЀ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥ب巠皱㙲皦忈皱੨皦柘皱즠Ʋǜ勁皦즠ƲبǜV /펔B䌁皦 ᮔDž'鱤džၜ먢䇨珵呈ᠾ뤂ᐱ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲᠾ

    Compressor common fault handling

    06/14/2020

    Compressor common fault handling

    Compressor common fault handling Foam when starting with liquid When the air-cooled compressor is started, the phenomenon that the lubricating oil in the crankcase blisters violently is called liquid start. The basic reason for starting with liquid is 器2䀀ￜ皥䖒皦즠Ʋ焬क़㲈Ʋ䌁皦ᮔDž༬皧然क़Ѐ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥ب巠皱㙲皦忈皱੨皦柘皱

    In 2019, the Belgian World Bus Expo adopted the theme of pure electric, zero emissions

    06/14/2020

    In 2019, the Belgian World Bus Expo adopted the theme of pure electric, zero emissions

    The trend of European buses to be fully electric and environmentally friendly has begun to emerge. According to EU regulations, all city buses in EU countries will have to be fully replaced by electric buses in 2030, so Panasonic Compressor will continue 器2䀀ￜ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔDž༬皧奖ིЀ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥ب巠皱㙲皦忈皱੨皦柘皱즠Ʋǜ勁皦즠ƲبǜV /펔B䌁皦 ᮔDž'鱤džၜ먢䇨珵呈ᠾ뤂ᐱ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲᠾ랖僧Ҏ識�僬㣢ᐲ臆S㥲ᐲᬄğ識理艏S

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