Unit Overview:

This series of purification unit air conditioning units is a new type of specialized air conditioning equipment developed by our company to meet the needs of the market, high-tech and scientific research institutions, and to integrate the latest technological developments. It can not only regulate air temperature and humidity, but also ensure its cleanliness. The unit can provide high external residual pressure to meet the demand of users for directly selecting high school filters, in order to achieve the purification requirements of clean spaces. This product has been a key research project of our company for many years, and its technical performance and specifications are at the leading level in China. This product adheres to the principle of'Efficient, energy-saving, environmentally friendly, and healthy'The design concept is to create high-performance products that meet the new characteristics of the 21st century for users. The overall design of the product is reasonable, with advantages such as full functionality, compact structure, small size, light weight, low noise, safe operation, and high reliability. This unit can be widely used in fields with high requirements for temperature, humidity, and cleanliness, such as:

hospital:Operating rooms, sterile wards, burn wards, baby rooms, leukemia rooms, etc;
　　Electronic purification workshop:Integrated circuits, laser electronics, liquid crystal electronics, circuit board printing, disk manufacturing, precision electronic instrument manufacturing, etc;
　　Food industry:Beverage filling, food packaging, brewing industry, food processing, etc;
　　bioengineering:Laboratories, formulation rooms, genetic testing rooms, animal breeding rooms, etc;
　　Pharmaceutical industry:Pharmaceutical workshop, antibiotic cultivation, ampoule storage.

Purification type constant temperature and humidity air conditioning units can be divided into chilled water type and self-contained cold source type according to different cold sources. The cold source of the chilled water unit is provided by a separate chiller unit5~12℃Frozen water; The cooling source of the self-contained cooling unit is provided by the internal supporting refrigeration system of the unit.JH、JL(D)The water-cooled series units are suitable for occasions with sufficient water sources;JHF、JLF(D)The air-cooled series units are suitable for situations where water sources are scarce.

working principle:

The operation of the constant humidity machine system is through three interconnected systems: refrigerant circulation system, air circulation system, and electrical self-control system;Refrigerant circulation system:
The liquid refrigerant in the evaporator absorbs heat from the air (which is cooled and dehumidified) and begins to evaporate. Eventually, a certain temperature difference is formed between the refrigerant and the air, and the liquid refrigerant completely evaporates into a gaseous state. It is then sucked in and compressed by the compressor (increasing pressure and temperature),Gaseous refrigerant passes through a condenser (air-cooled)/Water cooling absorbs heat and condenses into liquid. After being throttled by an expansion valve (or capillary tube), it becomes a low-temperature and low-pressure refrigerant that enters the evaporator, completing the refrigerant circulation process.

Air circulation system:
The fan is responsible for drawing in air from the return air outlet. The air passes through the evaporator (for cooling and dehumidification), humidifier, and heater (for heating) before being sent to the user's desired space through the air supply outlet. The air sent out mixes with the air in the space and returns to the return air outlet.

Electrical self-control system:
Including power supply and automatic control parts.
The power supply part supplies power to compressors, fans, humidifiers, etc. through contactors
The automatic control is divided into temperature and humidity control and fault protection parts:
Temperature and humidity control is achieved by comparing the temperature and humidity of the return air with the user set temperature and humidity through a temperature and humidity controller, and automatically operating components such as compressors (cooling, dehumidification), humidifiers, and electric heaters (heating) to achieve automatic control of constant temperature and humidity.
Fault protection control is achieved through the combination of pressure protection, delay devices, relays, overload protection, etc., to control the fault protection of components such as compressors, fans, humidifiers, etc.

Unit characteristics:

1. Advanced control:
The crew adopts intelligent instruments or programmable controllers（PLC）Control, high control accuracy, good reliability, remote control interface can be reserved for the unit instruments, making it convenient for users to remotely control and save management manpower; Fully apply modern control technology, optimize control models to ensure that the operating mode of the unit adapts to the changes in working conditions throughout the year, and improve the seasonal energy efficiency ratio of the unit;

2. Multiple protections:
The unit is equipped with high voltage, low voltage, overload, short circuit, phase failure, overheating, underwind pressure protection, as well as interlocking protection for water pumps and fire dampers;

3. The unit fully adopts high energy efficiency ratio(EER)The Vortex Compressor（50HpThe following) and semi enclosed screw compressors（60HpAbove).

4. Seasonal energy efficiency ratio(SEER)To optimize the objectives, the system matching theory is comprehensively introduced, and computer-aided design technology is widely used to optimize the structural parameters of various components of the refrigeration system, so that the performance matching between the components in the system is reasonable, and it can form a complete whole to ensure efficient and reliable operation under various working conditions throughout the year.

5. Fully apply modern control technology, optimize control models to ensure that the operating mode of the unit adapts to changes in working conditions throughout the year, and improve the seasonal energy efficiency ratio of the unit.

6. One machine with multiple uses, wide temperature control range, and high annual operating efficiency.

7. The unit uses environmentally friendly working fluids, selects environmentally friendly materials, and adopts new technologies and processes that meet environmental requirements, ensuring that the unit meets environmental requirements throughout the entire process and in all aspects.

Structural features:

1. compressor
Choose high-performance imported compressors that are safe, reliable, and have high energy efficiency.

2. fan
Adopting high-performance, low-noise centrifugal fans with high air volume, high static pressure, low noise, and smooth operation Stability and other advantages.

3. heat exchanger
Introduction to the United StatesOAKThe production line processing greatly improves the heat exchange efficiency of the heat exchanger.

4. casing
　　Indoor unit:Utilizing JapanAMADAEquipment processing, with excellent appearance quality.30HpThe following framework adopts the popular new aluminum alloy arc frame structure at home and abroad;40HpThe above adopts a new diamond edge aluminum alloy frame structure, which is compact in overall structure, beautiful and elegant, and full of modern atmosphere.
　　Outdoor unit:The heat exchanger adopts one-time bending forming technology, which has a beautiful appearance and good heat transfer effect. The shell is made of high-quality steel plate surface spray coating or stainless steel material, and the unit will never rust when placed outdoors.

5. humidifier
Choose high-performance humidifiers with good control performance, high humidification efficiency, safety and reliability.

6. heater
The electric heating adopts ribbed high-efficiency electric heating tubes, with small volume and high thermal power conversion efficiency; The steam or hot water heater adopts a copper tube jacket aluminum fin structure with high heat transfer efficiency.

7. Refrigeration fittings
Famous brand products are selected for accessories such as expansion valves, filters, solenoid valves, high and low pressure controllers, pressure gauges, etc.

8. filter
Adopting a two-stage filtration system: primary air filter and high and medium efficiency filter. The filtration efficiency can be achieved by colorimetric method90~95%.

9. Defrosting mechanism
Adopting highly reliable components and high-performance control methods to ensure the safety and reliability of defrosting during low-temperature operation of the unit, as well as complete and thorough frost layer treatment, thereby increasing the heat transfer performance of the unit.

10. XPS
High performance thermal insulation materials are used, with small thermal conductivity, high water resistance, anti-aging, flame retardant, and non-toxic. Multiple protection
The unit is equipped with high voltage, low voltage, overload, short circuit, phase failure, overheating, underwind pressure and other protections, as well as water Pump and fire damper interlock protection.

11. control mode
Adopting high-performance programmable control instruments. High control accuracy and good reliability. The instrument is reserved with a remote control interface, which can facilitate users to remotely control and save management manpower.

Model designation description:

Model example:JHF12NThe nominal cooling capacity is12kWThe compressor is placed indoors in an air-cooled purification constant temperature and humidity air conditioning unit.

JHPerformance parameter table of series water-cooled purification constant temperature and humidity unit:

JHFPerformance parameter table of series air-cooled purification constant temperature and humidity unit

JL(D)Type water-cooled purification type(heat)Fan performance parameter table:

JLF(D)Type air-cooled purification type(heat)Fan performance parameter table:

Unit nominal operating conditions: