accessory purpose: | Keli |
accessory Name: | * |
applicable compressor type: | * |
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brand: | Keli |
model: | dnbl-60 |
this series of cooling towers are energy-saving, because the motor installation capacity is lower than that of similar cooling towers at home and abroad
The water temperature drop of low-noise and ultra-low-noise cooling towers is generally 3 ~ 8 ℃, which is suitable for cooling of general water temperature drop such as air conditioning and refrigeration
Ultra low noise cooling tower takes a series of noise control measures on the basis of low noise cooling tower
The noise value of the standard point is ~ 5dB (a) lower than that of the corresponding low noise type
It is suitable for places with more stringent noise requirements, such as hotels, hospitals, public buildings and places close to residential areas
Its foundation, piping and motor power are the same as those of the corresponding low-noise cooling tower, and the cooling water volume and air volume are the same as those of the low-noise cooling tower
Industrial type, i
e
medium and high temperature cooling tower, the water temperature drop is generally 10-25 ℃
This type increases a series of measures such as tower diameter, air volume, air pressure, power and filler height
It is suitable for cooling industrial water with high water temperature drop
The thermal performance of the industrial tower in this design is surplus, so please do not leave room for selection
The code meaning is as follows, for example:
Dbnl3-100 type: d-low noise; B - FRP; N - countercurrent type; L - cooling tower;
3
The third modification design; 10o - Nominal flow under standard working condition 100m3 / h;
Gbnl3-100 type: g-industrial type, medium and high temperature drop;
Cdbnl3-100 type: CD 1 is ultra-low noise type; Others are the same as above
Selection and use
When selecting, it should be noted that water volume Q, inlet water temperature T1, outlet water temperature T2 and design wet bulb temperature τ, Determine the model according to the thermal performance curve
As far as the cold resistance of the material is concerned, it can be applied to an area of 50 ℃
However, for an area where the average temperature of the coldest month is lower than 10 ℃, anti icing measures shall be put forward when ordering
A water spraying guide ring can be equipped before leaving the factory to prevent water from flowing to the shutter
The turbidity of circulating water shall not be greater than 50 mg / L and 10 mg / L in the short term
It shall not contain oil and mechanical impurities
Algae killing and water quality stabilization measures shall be taken when necessary
The foundation drawing is for reference during installation
The direction of water inlet and outlet pipes of the large tower is shown in the figure
The small tower can be set at any horizontal position, but it shall not touch the foundation
If there is a foundation in the middle, its load shall be 25% of the operating weight, and the remaining 75% shall be borne equally by the peripheral rectangular tomb foundation
If it is installed on the roof, the additional pressure caused by wind load shall be considered
For cooling towers smaller than 125, supports shall be set at the connection between the inlet and outlet pipes connected outside and the cooling tower to prevent excessive weight from pressing on the tower wall
The water distribution pipe shall be perforated according to the nominal flow
If the difference between the actual water volume and the nominal flow is more than ± 15%, it shall be explained when ordering, and the opening size shall be changed by the manufacturer
The water pressure of the inlet pipe of the tower is about 2m to 5M water column
The pressure shall not be too high during design, otherwise excessive flow will float water
This product is applicable to the water temperature not exceeding 60 ℃
If it exceeds 60 ℃, it must be explained when ordering
Our factory can meet the requirements
For cooling tower fans above type 80, the blade angle can be adjusted, but the blade angle shall be consistent during standby, and the current shall not exceed the rated current of the motor
All types of fans can be reversed in a short period to eliminate ice
Therefore, in areas with severe icing, reversible magnetic starter shall be set, and the button shall be installed near the cooling tower
For the method of adjusting blades, see the manual of cross flow FRP cooling tower
When starting the cooling tower, the water pump must be started first and then the fan
It is not allowed to operate the fan without water spraying
Because the water distribution pipe is provided with an inclined water collecting plate, if the fan is started without spraying water, the water distributor will reverse and the water collecting plate will scrape the filler, so that the filler will be blown out and taken away by the wind or the water distribution pipe will be damaged
Therefore, when the cooling tower is started, the water pump must be started first and then the fan
When stopping work, stop the fan first and then the water pump
When users need to directly absorb water in the lower tower of the cooling tower, they need to install "automatic water supply pipe", "rapid water supply pipe" and "blowdown pipe", which can be specially put forward when ordering