每一款標(biāo)準(zhǔn)的風(fēng)冷卻器產(chǎn)品，都有對應(yīng)的性能曲線圖，

用戶根據(jù)曲線圖選型，依據(jù)的是兩個(gè)必要的參數(shù)：

第一，實(shí)際的流量，

第二，當(dāng)量冷卻功率，也叫等比比散熱功率。

所以，這兩個(gè)參數(shù)都不知道，或者只知道其中一個(gè)，都不能準(zhǔn)確選擇風(fēng)冷卻器。

這對于使用者來說，是有風(fēng)險(xiǎn)的。我們常常告訴他們，核心的參數(shù)不夠，無法推薦合適的產(chǎn)品。因?yàn)檫x大的或選小了都會造成浪費(fèi)。

這是一件令人沮喪的事情。

但不是一件困難的事情。

所以，使用者或廠家十分必要搞清楚風(fēng)冷卻器這兩個(gè)參數(shù)。

有一個(gè)簡單的計(jì)算公式，提供給大家，

根據(jù)風(fēng)冷卻器的進(jìn)出口油溫，估算系統(tǒng)的散熱量，

Pv≈0.028×L×(T進(jìn)-T出)

T進(jìn)：液壓油進(jìn)口溫度（℃）

T出：液壓油出口溫度（℃）

Pv：散熱量（kw）

L:油的流量（l/min）

如果不能提供上面的兩個(gè)參數(shù)，就只能依據(jù)液壓系統(tǒng)總功率的1/3作為風(fēng)冷卻器選型的參數(shù)。

Two necessary parameters for selection and calculation of air cooler

 

Each standard air cooler product has a corresponding performance curve,

 

According to the curve chart, the user selects the model based on two necessary parameters:

 

First, the actual flow,

 

Second, the equivalent cooling power, also known as the proportional cooling power.

 

Therefore, neither of these two parameters, or only one of them, can accurately select the air cooler.

 

This is risky for users. We often tell them that the core parameters are not enough to recommend the right products. Because choosing the big one or the small one will cause waste.

 

This is a depressing thing.

 

But it's not a difficult thing.

 

Therefore, it is very necessary for users or manufacturers to understand the two parameters of air cooler.

 

There is a simple calculation formula for you,

 

According to the oil temperature at the inlet and outlet of the air cooler, the heat dissipation of the system is estimated,

 

Pv ≈ 0.028 × L × (T in - T out)

 

T inlet: hydraulic oil inlet temperature (℃)

 

T outlet: outlet temperature of hydraulic oil (℃)

 

Pv: heat dissipation (kw)

 

L: oil flow (L / min)

 

If the above two parameters cannot be provided, only 1 / 3 of the total power of the hydraulic system can be used as the parameters of air cooler selection.