11results about How to "Large cooling capacity" patented technology

The utility model relates to the technical field of heating and ventilation automation control, in particular to an EC-based fan variable air volume combined type air conditioner control system which comprises a ventilation channel provided with a first air inlet end, a second air inlet end and an air outlet end, the first air inlet end is used for introducing fresh air, and the second air inlet end is used for introducing fresh air; the second air inlet end is connected to an air return pipeline of an air supply place; and the cooling component is arranged in the ventilation channel. By monitoring the enthalpy values of the air inlet side of the cooling component, the air supply pipeline and the air supply place, whether cooling capacity conveying needs to be increased or decreased indoors is judged, and when the cooling capacity needs to be increased, the enthalpy difference between the air inlet side of the cooling component and the air supply pipeline is increased, so that the cooling capacity of the system is increased; and meanwhile, only the opening degree of the regulating valve or the frequency of the centrifugal fan is regulated, so that the enthalpy value of the tail end of the system is accurately controlled along with the change of the load, and the energy-saving operation of the system is ensured while the comfortable effect of the environment is achieved.

The present invention relates to the field of chassis, and provides an electric truck chassis and an electric truck, including a frame and an electric steering oil pump, an electric air compressor, a cooling system, an air conditioning compressor, a motor cooling assembly, a power battery cooling assembly, an air conditioning compressor controller, an electric air compressor controller, a motor controller, an electric steering oil pump controller, and a DC / DC. The electric steering oil pump and the electric air compressor are stacked up and down, the air conditioning compressor controller, the electric air compressor controller, the motor controller, the electric steering oil pump controller, and the DC / DC are integrated as a five-in-one controller, and the air conditioning compressor, the motor cooling assembly, and the power battery cooling assembly are integrated as an integrated liquid cooling system. This arrangement can effectively reduce the space occupied by the frame, so that the integrated liquid cooling system can be arranged on the frame.

The invention relates to the technical field of mine underground cooling, and discloses a high-low pressure coupling device which comprises a first fluid distributor, a second fluid distributor, a third fluid distributor, a fourth fluid distributor and a fourth fluid distributor. The second fluid distributor is connected with a second pipeline extending down from the well and is a high-pressure hot water outlet assembly; the third fluid distributor is connected with a third pipeline extending from the underground and is a water inlet assembly of low-pressure hot water; the fourth fluid distributor is connected with a fourth pipeline extending from the underground and is a water outlet assembly of low-pressure cold water; the first fluid distributor, the second fluid distributor, the third fluid distributor and the fourth fluid distributor are respectively connected with the fluid exchange system; the pilot control assembly is connected with the fluid exchange system through a pilot pipeline, and the pilot control assembly is used for adjusting pressure balance. The device has the characteristics of large cold conveying capacity, less cold loss, large pressure bearing capacity, less energy consumption, invariable efficiency and simplicity in maintenance.

The invention relates to a liquid air energy storage system coupled with LNG cold energy and a control method. The system comprises an LNG gasification subsystem, a compressed air liquefaction subsystem, a gasification liquid air expansion power generation subsystem and a waste heat recovery circulation subsystem. LNG and liquid air gasification cold energy are stored, recycled and applied to the liquefied air energy storage system through the regenerator, the problem that the energy storage efficiency is not high due to the fact that the cold energy of the liquefied air energy storage system is insufficient is solved, in addition, the liquid air energy storage system coupled with LNG cold energy is dynamically controlled through the control method, and the energy storage efficiency is improved. And the influence of cold energy fluctuation of the regenerator on the liquefaction performance of the system is reduced. According to the system, LNG cold energy is utilized in a gradient mode, the air liquefaction power is improved, and the stability of the liquefaction performance of the liquefied air energy storage system is further improved.

The present invention discloses a novel rotor compressor with flexible connection and direct air intake, comprising a casing, wherein a pump body is installed inside the casing through a plurality of elastic supporting parts, the pump body comprising a cylinder assembly, a crankshaft is sleeved on the cylinder assembly, and a motor is sleeved on the top of the crankshaft; the pump body also comprises a swinging or sliding rotor arranged in the cylinder assembly, and the rotor is sleeved on the crankshaft; the rotor is connected to the cylinder assembly through a sliding vane, and the rotor and the sliding vane divide the inner cavity of the cylinder assembly into a low-pressure chamber and a high-pressure chamber; the low-pressure chamber is connected to an intake silencer chamber through an air inlet passage, and the intake silencer chamber is connected to the shell intake pipe through an intake flexible connecting pipe; the high-pressure chamber is connected to the exhaust silencer chamber through an exhaust passage, and the exhaust silencer chamber is communicated with the inner cavity of the casing; the compressor has low vibration and low noise, and has excellent refrigeration and starting performances.

The utility model discloses a reciprocating piston compressor split type air cylinder seat which comprises a lower base, a positioning groove is formed in the top of the lower base, an air cylinder head is connected in the positioning groove in an abutting mode, the air cylinder head is installed on the lower base through a fastener, a shaft hole is formed in the lower base, and a cylinder hole is formed in the air cylinder head. According to the split type air cylinder seat, due to the fact that the bottom end part of the back plate abuts against the interior of the first positioning groove, the lower base can be used for providing more support for the air cylinder head and the air cylinder, and the requirement for the connection strength between a fastener and the lower base is lowered; and meanwhile, the first positioning groove and the second positioning groove are used for positioning when the back plate and the piston cylinder are installed, so that the installation position of the air cylinder head is conveniently determined, and the air cylinder head is prevented from moving at will in the installation process.

This application provides an on-board cooling device and a cooling vehicle. The on-board cooling device includes: a housing with multiple vents; and multiple heat dissipation systems, each including a fan and a cooling system. The fans of the multiple heat dissipation systems are respectively disposed at the multiple vents to drive gas in the housing to flow out through the multiple vents. The cooling systems of the multiple heat dissipation systems are all disposed in the housing and connected in parallel to provide cooling liquid to the heat-generating equipment to absorb heat from the heat-generating equipment, and the absorbed heat is carried away by the gas driven by the fans, thereby cooling the heat-generating equipment. In this way, the cooling capacity of the on-board cooling device and the cooling vehicle can be enhanced, better meeting cooling needs.

This invention provides a two-dimensional triangular lattice rare-earth-based titanate polycrystalline material, its preparation method, and its applications. The chemical formula of the rare-earth-based titanate polycrystalline material is Ba6M2Ti4O. 17 The space group is P63 / mmc, where M is one or more of Nd, Gd, and Yb. The novel two-dimensional triangular lattice rare-earth-based titanate polycrystalline material provided by this invention has a compact structure, a simple preparation process, and its frustrated structure of localized electron spins significantly reduces the minimum cooling temperature to the tens of millikons. Furthermore, it exhibits high magnetic ion density and large cooling capacity, making it an excellent magnetic refrigerant.

The invention relates to the technical field of semiconductor air conditioners, in particular to a semiconductor refrigeration device and an operation method thereof. The semiconductor refrigeration device comprises a semiconductor assembly which comprises a single-stage semiconductor and a multi-stage semiconductor, and the single-stage semiconductor and the multi-stage semiconductor are arranged in parallel; the cold storage assembly is used for containing a cold storage piece, and the cold end of the semiconductor assembly is connected with the cold storage assembly in a matched mode; when the user side does not need to use cold, the semiconductor assembly operates so that the cold energy generated by the cold end of the semiconductor assembly can be stored in the cold storage assembly; when the user side needs to use cold, the cold storage assembly is used for outputting cold energy to the outside so as to cool the user side. In the cold accumulation period of the semiconductor refrigeration device, the single-stage semiconductor is made to work firstly, after the refrigeration effect of the single-stage semiconductor is weakened, the multi-stage semiconductor starts to work, the defect that the refrigeration capacity of the single-stage semiconductor is insufficient is overcome, the refrigeration capacity of the semiconductor assembly within a certain time can be improved, and the cold capacity stored in the cold accumulation assembly within a certain time is increased.

The utility model discloses a coal-to-olefin propylene refrigeration system and belongs to the technical field of propylene refrigeration. The coal-to-olefin propylene refrigerating system comprises a first propylene compressor unit and a second propylene compressor unit, and each of the first propylene compressor unit and the second propylene compressor unit comprises an inlet separator and a propylene subcooler. A first series pipeline is additionally arranged between a pipeline in front of an inlet separator stop valve of the first propylene compressor unit and a pipeline in front of an inlet separator stop valve of the second propylene compressor unit; a second series pipeline is additionally arranged between the pipeline behind the propylene subcooler outlet valve of the first propylene compressor unit and the pipeline behind the propylene subcooler outlet valve of the second propylene compressor unit; and valves are also arranged on the first series pipeline and the second series pipeline. The coal-to-olefin propylene refrigerating system provided by the utility model provides efficient cooling capacity for a tank area VOCs (Volatile Organic Compounds) device, improves the absorption efficiency, reduces the operation pressure of the refrigerating system, and reduces the potential safety hazard of the operation of the device.

The present invention discloses a low-temperature control system, including a primary circuit, a liquid spray circuit, a pressure relief circuit and a control device; the primary circuit is provided with a primary compressor, a primary oil separator, a primary condenser, a first gas-liquid separator, a primary filter dryer, a first heat exchanger, a first throttling device, a primary evaporator and a second gas-liquid separator in sequence; the exhaust port of the first gas-liquid separator is connected to a pressure relief solenoid valve, a suction capillary, an expansion tank and a spray capillary in sequence to form the pressure relief circuit, and the spray capillary is connected to the inlet end of the second gas-liquid separator. The present invention also provides a control method for a low-temperature control system. The present invention is applied to a low-temperature or ultra-low-temperature refrigeration system, and can achieve refrigeration with greater cooling capacity and lower temperature.