Technology definitions

Chinese name:Ice making machine

English name:Ice maker

Definition.Fast automatic producing different forms of ice machine.

Applied science:Fisheries Science ( a subject ); fishing vessels and fishing machinery ( two subjects )

The above content by the National Committee for terms in sciences and technologies validation published

Encyclopedia of business cards

Ice making machine

Ice machine is a kind of water through the evaporator refrigerant cooled by refrigeration system to generate ice refrigeration equipment. According to the evaporator and the generation process principle, generating ice shapes are different, people generally according to the shape of ice will be pided into granular ice machine ice machine, ice machine, plate ice machine, tube ice machine, ice machine shell.

Catalog

Basic information

Ice types

Ice making machine concept

The action of ice

Working principle

Ice making cycle

A harvest cycle

Condensation method

Brief introduction

Air cooled condenser

Water cooled condenser

Evaporative condenser

Principle of operation

Application

Advantage

Characteristic

Model selection

The

Ice needs

Ice quantity

Selection of

Classified

Installation and operating instructions

Installation instructions

Operating instructions

Small ice-making machine works

Ice making machine types Daquan

Commercial ice machine

Supermarket ice machine

Commercial ice machine

Ice machine ice brand and model parameters.

Open

Basic information

Ice types

Ice making machine concept

The action of ice

Working principle

Ice making cycle

A harvest cycle

Condensation method

Brief introduction

Air cooled condenser

Water cooled condenser

Evaporative condenser

Principle of operation

Application

Advantage

Characteristic

Model selection

The

Ice needs

Ice quantity

Selection of

Classified

Installation and operating instructions

Installation instructions

Operating instructions

Small ice-making machine works

Ice making machine types Daquan

Commercial ice machine

Supermarket ice machine

Commercial ice machine

Ice machine ice brand and model parameters.

Open

Basic information

Ice types

According to the purpose and characteristics of ice, ice is mainly pided into: tube ice, ice, ice particles, flake ice ( water / seawater ), plate ice ( water / seawater ), transparent ice, ice water. No matter what kind of ice, is decided by its characteristics application.

According to the ice shape can be pided into: squamous flake ice machine, the snowflake shape ice machine, ice machine, plate ice machine, ice machine ( can be pided edible small ice machines and industrial big ice machine, ice machine, particle machine ), tube ice machine ice machine, bullet.

Ice machine ice machine ice - small pellet

Ice making machine concept

The refrigeration system, water carrier, in a power-on state through a device, manufacturing ice equipment ( machine ) called ice machine.

The action of ice

The action of ice is pided into three kinds: one for cooling, the edible, three man-made scene, for viewing.

Working principle

The water storage tank of chilled water pump continuously circulating through the plate or grid evaporator;

The operation of the compressor after inspiratory - compression exhaust condensation (LP) - throttle - again in the evaporator to -10 to -18 degrees low temperature evaporation vaporization. Chilled water at 0 degrees of temperature constant at a temperature of the evaporator surface condense into ice. When the ice condensation to a certain thickness, refrigerant evaporating temperature reaches the set temperature after the temperature control, switching on defrosting electromagnetic valve is often used in heat pump type deicing, and then realize the next cycle.

Ice making cycle

By adding water valve, water enters a water storage tank, and then through the flow control valve water through pumping to shunt head, where water is sprayed evenly to the ice maker on the surface, like a curtain through ice wall, water is cooled to the freezing point, but not by evaporation of frozen water will flow into the water storage tank through a hole groove, restarting the cycle work.

A harvest cycle

When the ice to reach the required thickness ( thickness by the operator / users of arbitrary choice ), the compressor exhaust gas back ice wall clamping, replace low-temperature liquid refrigerant. In the ice and the evaporation tube wall is formed between a layer of a thin film of water, the water layer in ice by gravity free fall into the following slot, played the role of lubrication. But during a harvest cycle produced by the water will pass through the porous channel back to the water storage tank, this also prevents wet ice machine discharge.

Condensation method

Brief introduction

There are air-cooled, water-cooled or evaporative condenser realization. Evaporation type is mounted above the ice machine in place, the water-cooled condenser is packed in ice machine under the

Ice making machine

Square or refrigeration system below, while the air cooled condenser installed in according to the actual situation may be installed together with the ice-making machine can also be installed in outdoor. If desired, the water-cooled condenser on board a ship or shore use, use sea water for cooling. Evaporative cooling can be used in the ambient air temperature is higher, but the efficiency and economic point of view, not suitable for water-cooled or air-cooled refrigeration under conditions of use. German Ferguson focusun, American Scotsman, Japanese star Qi Scotsman ice machine, as well as domestic Snowman refrigeration SNOKWEY is currently the mainstream of world ice-making machine manufacturers, occupy world most share, Ferguson is good at ice cube, tube ice, granular ice ice-making machine in the world these fast food more developed countries occupy a relatively large amount of ice, Nissan from 10 kg to 50000 kg. Ice cube has a circular shape, square shape, a square shape, contour, squamous, ore block and snowflake ice. Widely used in hotels, restaurants, fast food shops, Cara OK dance hall, cafe, supermarket fresh, fisheries, food processing, medical and health, family and other places of consumption.

Commercial, industrial ice-making machine condenser can use air-cooled, water-cooled and evaporative condenser, here we introduce respectively:

Air cooled condenser

Cooling performance

By environment temperature, environment temperature is higher, so the condensation temperature is higher. In general, the air-cooled condenser, condensing temperature higher than ambient temperature 7～ 12 ℃, 7 ~ 12 ℃this value we called the temperature difference of heat transfer. Condensation temperature is higher, the refrigerating unit efficiency will be lower, so we have to control the heat transfer temperature should not be too big. But if you want to make the heat transfer temperature is too small, then the air cooling condenser heat transfer area and the circulation of air to air cooled condenser is bigger, cost is higher. Temperature limit

Not higher than 55 DEG C, not lower than 20 DEG c.. Typically, the environmental temperature is above 42 ℃areas are not recommended the use of air-cooled condenser. So whether the choice of air cooling condenser, first make sure the environment temperature. General design of air cooled ice machines, must require customers to provide local annual highest ambient dry-bulb temperature.

Advantage

Without water, low operating cost.

Installation, convenient use, no need of other ancillary equipment, as long as switching on the power supply can be put into operation

Pollution of the environment.

Applicable to the severe shortage of water or water supply rare area.

Defect

Cost high.

Condensation temperature is higher, the lower efficiency of the operation of the refrigeration unit.

Does not apply to the dirty air, dust climatic regions.

Water cooled condenser

Cooling performance

Wet bulb temperature is determined by the environment, ambient wet bulb temperature is higher, so the condensation temperature is higher. In general, the water-cooled condenser, condensing temperature than the ambient wet bulb temperature 5 ~ 7℃.

Temperature limit

Not higher than 55 DEG C, not lower than 20 DEG c.. Typically, ambient wet bulb temperature is above 42 ℃areas are not recommended the use of water-cooled condenser. So whether the choice of water-cooled condenser, first make sure the ambient wet bulb temperature.

General design of water ice machine, must require customers to provide local annual highest ambient wet bulb temperature. At the same time when the ambient temperature is over 50 ℃, also cannot use water-cooled condenser, cooling tower easy will be high temperature drying bad. Cooling tower with sun protection must be used under the condition of.

Working principle

High temperature and high pressure refrigerant gas from above the condenser inlet into the shell process of condenser, cooling water pump cooling water from the cooling tower water storage groove extraction, through a condenser and right beneath the water inlet enters the condenser tube in condenser copper tube, and the refrigerant in the heat exchange, temperature rise, right at the top at the outlet from the condenser out, through the outlet pipe after entering into the cooling tower, the water inlet pipe, the spraying water pipe water outlet, evenly sprinkled on the filler, through the fan suction and filling water heat exchange, so that the water temperature is reduced, the cooled water stored in the water storage tank, to be reused.

High temperature and high pressure refrigerant gas in the condenser shell pass, and in tube flow of cooling water heat exchange, temperature lowering, condensed into liquid. Refrigeration unit waste heat to heat exchanged with water ( condensation occurs within the heat exchange ), water and air by the heat exchanger ( cooling tower heat exchanges take place ).

Water cooled condenser has the advantages

The refrigeration condensing temperature low, improving the refrigerating efficiency

Initial cost than air cooling, evaporative cooling low

The cooling effect is good, applicable to large refrigeration system

Water cooled condenser.

Consumption of water resources

Some effects of water, on the surrounding environment

Need to install water system, water supply system

Evaporative condenser

Evaporative condenser, referred to as the evaporative cooling

Working principle

The working principle of evaporative condenser is will need high temperature steam from condensation heat exchange coil is imported into the coil, high temperature steam in the heat-exchange coil pipe heat release and its cooling after it condenses into a liquid phase change. In the heat exchange coil external to the circulating spray water as cooling medium, so that the water spray into the heat exchange coil outer surface, forming a layer of even moderate water film, water film absorption coil heat steam heat to evaporate, and then through the fan will water vapor out of evaporative condenser and the coil pipe of heat take away. Evaporative condenser using the sprinkling of latent heat of water vaporization, with ambient air as the medium, to ambient wet bulb temperature of temperature for heat exchange, having a condensation temperature low, heat transfer temperature, sufficient heat exchange, low power consumption, stable performance and other advantages.

Wet bulb temperature is determined by the environment, ambient wet bulb temperature is higher, so the condensation temperature is higher. In general, the water-cooled condenser, condensing temperature than the ambient wet bulb temperature 5 ~ 7℃.

General refrigeration system condenser temperature limit

Not higher than 55 DEG C, not lower than 20 DEG c.. Typically, ambient wet bulb temperature is above 42 ℃areas are not recommended the use of water-cooled condenser. So whether the choice of water-cooled condenser, first make sure the ambient wet bulb temperature. General design of water ice machine, must require customers to provide local annual highest ambient wet bulb temperature.

Flake ice machine evaporator ( EVEPORATOR )

The evaporator.

Ice machine evaporator is composed of ice skates, sprinkling disk, spindle, a water receiving disc in a speed reducer drive, counterclockwise slow rotation. Water from the ice-making machine evaporator inlet water disk, by sprinkling pipe, the water evenly sprinkled on ice surface, forming a water film; water film and the refrigerant flow of refrigerant for heat exchange, temperature decreases rapidly, in the ice formed on the surface of a thin layer of ice on skates, squeeze, broken ice, from ice outlet into the icehouse. Partial open into the ice water through a water receiving disc from the water outlet flows back to the water tank, the water circulating pump, circulating use.

Principle of operation

1 ice making water needs salt ( jargon called dosing ) as to how much weight! See how much ice volume pump modulation ( piston pump) is automatically adjusted.

2 ice machine is pided into two main cavity cavity plate of a certain density brass! Professional terms called ( evaporation cavity ) is saying refrigeration things.

The 3 cavity is a very regular round stainless steel cavity center a trefoil scraper and the distance from the inner wall can be adjusted is 3 millimeter commonly. In ice above there are several groups of uniform distribution of copper nozzle!

4 principles for starting when plunger pump will be mixed with salt water through several filter 0.2 kilograms of water sprayed evenly to the inner cavity surface of outer cavity for cold suddenly form 3 mm thick ice skate blade in rotating under the action of just prepared ice storage bin to play into small pieces! The basic principles of civil ice machine! Is is a rotating ice box.

Refrigerating machine for the working principle: 1, water storage tank of chilled water pump continuously circulating through the plate or grid evaporator; 2, the operation of the compressor after inspiratory - compression exhaust condensation (LP) - throttle - again in the evaporator to -10 to -18 degrees low temperature evaporation vaporization of frozen water in 0. Degree of water temperature constant at a temperature of the evaporator surface condense into ice. When the ice condensation to a certain thickness, refrigerant evaporating temperature reaches the set temperature after the temperature control, switching on defrosting electromagnetic valve is often used in heat pump type deicing. Then realizes the next cycle.

Ice making cycle:

By adding water valve, water enters a water storage tank, and then through the flow control valve water through pumping to shunt head, where water is sprayed evenly to the ice maker on the surface, like a curtain through ice wall, water is cooled to the freezing point, but not by evaporation of frozen water will flow into the water storage tank through a hole groove, restarting the cycle work.

A harvest cycle:

When the ice to reach the required thickness ( thickness by the operator / users of arbitrary choice ), the compressor exhaust gas back ice wall clamping, replace low-temperature liquid refrigerant. In the ice and the evaporation tube wall is formed between a layer of a thin film of water, the water layer in ice by gravity free fall into the following slot, played the role of lubrication. But during a harvest cycle produced by the water will pass through the porous channel back to the water storage tank, this also prevents wet ice machine discharge.

Condenser:

There are air-cooled, water-cooled or evaporative condenser realization. Evaporation type is mounted above the ice machine in place, the water-cooled condenser is packed in ice machine refrigeration system under or below, and an air cooled condenser installed in according to the actual situation may be installed together with the ice-making machine can also be installed in outdoor. If desired, the water-cooled condenser on board a ship or shore use, use sea water for cooling. Evaporative cooling can be used in the ambient air temperature is higher, but the efficiency and economic point of view, not suitable for water-cooled or air-cooled refrigeration under conditions of use.

Application

Flake ice machine in aquaculture, food, supermarkets, dairy, pharmaceutical, chemical, vegetable fresh-keeping transport, marine fishing industries are widely used, along with the development of society and people continuously improve the level of production, the ice industry more and more widely, the ice is getting higher and higher quality requirements. The ice machine " high performance ", " low failure rate ", " health " is more and more urgent.

1 in aquatic product processing applications: flake ice can reduce processing medium, clean water, aquatic product temperature, prevent bacterial growth, keep the processing of aquatic products in the process of fresh.

2 meat product processing applications: will conform to the hygiene standards of ice mixed with meat mixer. In order to achieve cooling, preservation purposes.

3 food processing applications: such as bread production in the mixing or two milk