The liquid refrigerant in the condenser is connected to the capillary through the regulating valve and the capillary is a normally closed device. The pressure value is set according to the temperature of the refrigerant, the mechanical degree of the fluid is increased, and the pressure is also increased. When the pressure exceeds this value, the regulating valve opens to inject liquid refrigerant to the compressor, and the capillary is used to adjust the amount of injection. The liquid refrigerant entering the compressor is mixed with the normal return gas, absorbs the heat of the superheated refrigerant gas and evaporates, so that the suction temperature is lowered, and the compressor motor winding is effectively cooled, so that the system can work normally under the environment of 5 ° C. To extend the life of the compressor. Vibration and noise control. The vehicle air conditioner is a split structure, the indoor unit is installed on the inner compartment wall, and the outdoor unit is connected to the compartment wall through the mounting bracket. Since the compartment and the mounting bracket are all metal members, the internal damping is small, and the vibration and radiation noise are easily excited. The inner surface material of the compartment is also made of metal material, and the sound absorption coefficient is very small. After a sound is emitted, the multiple reflections through the wall of the compartment will be lost, and the operation of the air conditioner is continuous, under continuous noise and vibration response. The compartment is equivalent to a speaker. Once the excitation frequency of the air conditioner is close to the natural frequency of the cabin, it will cause resonance, resulting in higher airborne sound, which affects the normal work of the staff. The links of the acoustic system are the sound source, the way to spread the sound, and the receptor of the sound, that is, the source of the sound source. Control noise is carried out in three aspects: sound source, pathway, and receiver protection. Controlling noise from a sound source is the most fundamental and effective means of controlling noise.
The European type jaw crusher is commonly used in primary or
secondary crushing of mining materials. The European type jaw crusher is an
advanced equipment developed for crushing stone materials used in construction
projects such as highways, railways, and airport runways. The European type jaw
crusher adopts the most advanced international crushing technology and
manufacturing level, and is the first choice for efficient products when
crushing hard and highly abrasive materials. The stone materials used in
engineering projects such as highways, railways, and airport runways are mostly
hard rocks such as basalt, with specifications ranging from 3 to 7 centimeters.
The hardness of the crushed materials is relatively high, and generally, the
yield of jawbone is low and it is easy to wear.
Structural Principles:
The European type jaw crusher mainly includes a base, a fixed jaw, a
moving jaw, and an eccentric shaft. The fixed jaw is fixed with a fixed jaw tooth
plate, and the moving jaw tooth plate is fixed on the moving jaw through a
connecting bolt rod. There are side guard plates on both sides of the moving
and fixed jaw tooth plates, and the upper end of the moving jaw is sleeved on
the eccentric shaft. There is a bearing chamber between the moving jaw and the
eccentric shaft, and the top of the moving jaw tooth plate is about 80-250mm
higher than the fixed jaw tooth plate. The structure is simple and reasonable,
and the raised movable jaw tooth plate has a good protective effect on the
movable jaw and bearing chamber, while ensuring smooth feeding and avoiding
material blockage and jamming. It is safe and reliable, and the utility model
also simplifies the production of the movable jaw. The movable jaw bearing
chamber has good sealing performance, good operating performance, no oil
leakage, and improves the overall use of the machine. The noise is low, the
operation is stable, and the energy-saving effect is obvious, which is
conducive to promotion and application. It is widely used in mines In the
fields of building materials, silicates, metallurgy, road construction,
chemical industrial raw materials, etc., it is particularly suitable for
crushing medium hardness materials, such as rocks, ores, clinker from cement
plants, etc.
European Type Jaw Crusher,Jaw Crusher Machine,Hydraulic Jaw Crusher,Jaw Type Rock Crusher SiChuan TieYing Machinery Manufacturing CO.,LTD; , https://www.tieyingcrushers.com