• +86）-0757-8648-0270
  • info@topwaterchiller.com
  • 中国佛山市のウォーターチラーメーカー
APT-ウォーターチラーサプライヤー、中国

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ウォーターチラーの知識

This category will let you know about what can we do and how to make it via using our water chiller to change your life! Let’s share the latest technological information.

冷水チラーの動作シーケンス

冷水チラーの動作シーケンス

1.CHECK LIST BEFORE INPUT POWER

WHEN the power supply and water supply both meet the requirements,then can we input the power:FIRST, press the power button ON, and check :

① LIQUID LEVEL AND OPEN THE PUMP VALVE:

Whether the liquid level of the cold water tank meets the requirements and whether the front and rear valves of the cold water pump have been opened;

② OPEN THE WATER TOWER AND PUMP

Turn on the switch of cooling water tower and cooling water pump, and pay attention to the opening of inlet and outlet valves of cooling water. (Note: air cooled type does not need cooling water tower)

③CHECK THE TURNING DIRECTION

When all the above conditions are met, you can use the inching mode to test whether the direction of cooling water pump, cold water pump, cooling tower fan and condensing fan of air cooling unit is correct, and whether the water transmission and air suction and discharge are normal. If not, they must be eliminated first.

2. PRESS THE CHILLER OPEN BUTTON AND LET IT RUN

Turn on the running switch of the chiller again, and the chilled water pump starts to run. Please note that the inlet and outlet valves of the chilled water must be opened, and the compressor will run automatically after the delay switch. Please check and adjust the required temperature.

3. Startup sequence difference of water-cooled and air-cooled chiller:

① Water cooled chiller unit:

turn on the cooling tower fan and cooling water pump first, and then turn on the chiller

② Air cooled chiller unit:

can be started directly

4. Shutdown sequence:

① Water cooled unit:

turn off the chiller first, then turn off the cooling tower fan and cooling water pump

② Air cooled unit:

It can be shut down directly.

冷水チラーの動作シーケンス Read More »

工業用冷水器の設置

工業用冷水チラーの設置要件

Installation Requirements of Industrial Water Chiller

All the Installation requirements of industrial water chiller you should notice to make sure the chilling unit can run as long as it can.

Industrial chillers can be divided into two categories according to the heat dissipation mode: 1. Water cooling units; 2. Air cooling units.

The water-cooled unit must be connected with the cooling tower and the inlet and outlet pipes of cooling water and chilled water. The cooling tower and cooling pump should be selected according to the refrigeration capacity and compression power, with the inlet pressure ≥ 1.5bar, and the diameter of the inlet and outlet pipe should be consistent with the diameter of the cooling water inlet and outlet pipe.

However, the air-cooled unit only needs to connect the chilled water inlet and outlet pipes and make-up water source. After the power supply is connected, the operation can be carried out. The ventilation should be smooth, and there should be no dust and debris around to avoid being inhaled into the unit.

1.The diameter of the water pipe

The diameter of the water pipe connection port reserved by the unit is standard size. When the remote transmission is adopted, a larger diameter water pipe must be used for connection. In any case, the diameter of the water pipe should not be smaller than the standard diameter of the connection port, otherwise, the pressure alarm will be given and the compressor and water pump will be damaged greatly.

2.Connecting The Water Pipe

When connecting the water pipe, the user should refer to the installation diagram to connect the pipeline, confirm the position of the inlet and outlet pipe, distinguish the cooling water pipe and the chilled water pipe.The wrong connection of the pipe will damage the unit.Only after ensuring the normal connection of the whole system can the system be started up and run.

3.With Connector or Flange

When the water pipe is connected to the unit, it must be connected with a connector or flange, so that it can be easily removed when necessary.

4.Connect a Hose

A section of hose is connected to the outlet and inlet of the water pipe to reduce vibration transmission.

5.Valves and Filter

If permitted, install valves on water pipes to effectively control water flow. It is suggested to install a filter at the water inlet to prevent sediment and debris.

6.Check Leakage Problem

Check the internal and external have leakage problem or not,when the water inlet/outlet valve of evaporator and condenser is fully opened.

7.Wrap With Insulation Material

The water pipe should be wrapped with enough insulation cotton to protect it from frost on the surface and keep the chilling water temperature.

8.Winter Protection Measures

In winter, when the unit stops operation, the water in the water pump and water pipe may freeze, causing damage to the unit and water pipe. In order to prevent icing, when the unit stops, the water pump can be effectively started. If there is still possibility of icing, all water in the water pipe will be discharged. If drainage is difficult, an anti icing mixture such as ethylene glycol or propanol can be used.

9.By-pass Pipe

When installing the unit, please install the bypass pipe in the chilled water pipeline device. When the chilled water outlet valve is turned down, the bypass pipe valve can be adjusted to relieve the pump pressure and prevent the evaporator from freezing.

10.Check Before Running

When the air-cooled chiller is started up and running, please pay attention to whether the water pump and exhaust fan turn normally before starting up and running.

11.High/Low Pressure

When the unit is running, please pay attention to the pressure display content: water cooled high pressure is (1.2 ~ 1.8MPa), low pressure is (0.3 ~ 0.6MPa); air cooled high pressure is (1.2 ~ 1.9mpa), low pressure is (0.3 ~ 0.6MPa). If the value is too high or too low, it means that the fault is a precursor or improper use. Please check it in time or inform the manufacturer to deal with it. Maintenance in advance is better than repair afterwards.

12.Cooling Water and Scale

To ensure that the condenser is not easy to scale and can be used for a long time, please use softened water (or tap water) as cooling water. If a cooling tower is used, the cooling water should be replaced regularly.

13.Regular Cleanning

The condenser and evaporator of the chiller usually need to be cleaned after a period of use (the cleaning cycle depends on the surrounding environment and water quality).

14.Temperature Setting

It is better to control the outlet water temperature of the unit at 7 ~ 12 ℃. When adjusting the temperature controller, please note that low temperature will cause some protection devices of the unit to fail.

15.Electric Control Elements and Protection Devices

All electric control elements and protection devices of the unit have been strictly tested by the manufacturer. Users are not allowed to change or remove them during inspection and maintenance. Forced operation without protection will cause great damage to the unit.

工業用冷水チラーの設置要件 Read More »

さまざまなタイプのチラーの特徴と利点

Characteristics and advantages of
different types Water Chillers

1.

Box type water cooling chiller:

It has compact structure, with water tank and water pump inside. It is suitable for equipment with closed external pipeline.

The water-cooled model needs to be equipped with cooling water pump and cooling tower before it can be put into use.

2.

Box type air-cooled chiller:

In addition to all the performance of box type, there is no need to add cooling water pump and cooling tower.

It is easy to install and operate. It is suitable for small flexible production equipment and workshop where cooling tower is installed unconditionally.

3.

Water cooled open type water chiller:

It is not equipped with chilled water tank and water pump, but can be connected with water pump and water tank as required.

The volume of water tank and pump head are not limited, which can better meet the needs of different industrial equipment.

Open structure, easy to clean and maintain.

4.

Water cooled or air-cooled low-temperature chillers:

Antifreeze solution (ethylene glycol or low-temperature brine) should be used as the carrier refrigerant, and the outlet temperature can be below zero.

It includes three series: high temperature (water outlet temperature: 3 ℃ – 5℃）、中温（出水温度： – 5℃ – 10℃）、低温（出水温度） – 15 ℃), which can meet the low temperature requirements of various equipment and can also be customized according to the special requirements of customers.

5.

Water cooled screw type:

Adopted with shell and tube condenser and shell and tube condenser , which have the characteristics of simple structure, stable heat exchange, long-lasting efficiency and convenient maintenance.

The unit has reliable safety protection devices, including: high and low voltage protector, exhaust overheat protector, compressor motor overheat protector, overload current protector, antifreeze temperature protector, water flow protector, emergency stop switch, temperature sensitive fusible bolt, safety valve, etc.

It is recognized as the most ideal structure composition of central refrigeration host.

6.

Corrosion resistant titanium tube type:

Special titanium evaporator can avoid acid liquid corrosion, and can directly freeze electroplating, oxidation liquid, sea water, salt water and other corrosive liquids.

さまざまなタイプのチラーの特徴と利点 Read More »

冷水器設置前の準備

Find it hard or complicate to install a water chiller? Don’t know how to pick up a right place to settle your new water chiller?

Actually , you just need to do below steps one by one.Then everything will become very simple.

Let’s do it！

Check the components are complete

Before installation, check whether the components of the unit are complete.

The Right Cooling water tower and Cooling water pump

Select the appropriate cooling tower (air cooling type does not need cooling tower), and the capacity of cooling water pump should match the model. Please install according to the size of the body pipe, do not reduce the size of the cooling pipe, in order to avoid causing high pressure overload, affecting the cooling effect and increasing power consumption.

Correct handling methods

Correct handling method: use stacker, crane and drum. Do not drag the machine by force. Since the equipment has been debugged before leaving the factory, the system has pressure, so strong vibration is not allowed during loading and unloading, handling and installation. It is not allowed to invert, tilt or side set the unit during handling.

The right installation location requested:

The water chiller is an indoor device. If the user needs to place the equipment outdoors, it should be well protected from rain and sun, and should not be directly exposed to the outside.

 

The installation location should be a place with stable foundation, open surroundings, ventilation, avoiding corrosion and pollution, and convenient for installation and maintenance.

Since the unit itself will generate heat, it is necessary to avoid high temperature area around the unit during installation to meet the effective heat dissipation of the equipment, especially to ensure that the condenser of air-cooled chiller is well ventilated.

Avoid placing high-power inverter, welding machine and other equipment with interference sources near the equipment, and the installation space of the unit shall not be less than the size shown in the figure below. The figure shows the minimum installation space of the unit (unit: mm).

Water-cooled water chiller (Box type or Open type)
Air-cooled water chiller

The unit without caster at the bottom

The unit without caster at the bottom must be placed on the horizontal concrete base, and there must be no less than 3mm thick damping rubber pad between the unit and the concrete base

It is better to install large air-cooled units in outdoor space。

On the other hand, it can reduce heat emission. When placing, please support the bottom of the unit with bracket to make it ventilate smoothly and prevent rusting.

Note:

(1) the power load and grounding part shall be constructed in accordance with relevant laws and regulations

(2) The chilled water pipes of newly installed chillers must be covered with insulation layer.

冷水器設置前の準備 Read More »

The Application of APT industry chillers

2021年の冷凍技術の応用

冷凍産業の発展に伴い、冷凍技術の応用はますます広範囲になってきています。今では、日常の衣・食・住・交通から最先端の科学技術に至るまで、人々の生活・生産活動のあらゆる分野に浸透しており、冷凍技術は欠かすことができません。

1. 食品工学

 

生鮮食品の品質、経済寿命、価値を長く向上させるためには、生鮮食品の仕入れや漁獲から、加工、保管、輸送、販売に至るまでの流通過程全体において、安定した低温環境を維持する必要があります。そのためには、冷蔵加工設備、冷蔵倉庫、冷蔵輸送車両や船舶、冷蔵販売カウンターなど、さまざまな冷蔵設備が必要となります。

 

2. 空調工学

空調工学は冷凍技術の幅広い応用分野です。光学機器、精密測定ツール、繊維工場、コンピューター室などでは、環境の温度、湿度、清浄度をさまざまなレベルで管理する必要があります。体育館や大ホール、ホテルなどの公共施設、自動車、飛行機、大型バスにも快適な空調システムが求められています。

3. Mechanical and electronic industry

20HP産業用水冷チラー

 

精密工作機械の油圧システムは冷凍を利用して油温を制御し、油膜の硬さを安定させて機械を正常に動作させることができます。鋼の低温処理により、鋼の特性が改善され、鋼の硬度と強度が向上し、ワークピースの耐用年数が延長されます。マルチチャンネル通信、レーダー、衛星地上局、その他の電子機器も低温で動作する必要があります。

 

スイミングプール水チラー 1HP-3HP

血漿、ワクチン、および一部の特殊な薬剤は低温で保存する必要があります。低温麻酔、低温手術、高熱患者の冷湿布冷却にも冷凍技術が必要です。

4. National defense industry and modern science

It is also necessary to simulate the performance

of these weapons and vehicles in the cold environment. Artificial rainfall also needs cooling.

2021年の冷凍技術の応用 Read More »

  • +86-0757-8648-0270
  • info@topwaterchiller.com
  • 中国広東省仏山市南海区麗水町紅港工業団地南興路3号

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