科士达机房精密空调压差旁通阀

科士达机房精密空调压差旁通阀分自力式压差旁通阀和电动压差旁通阀2种。

电动压差旁通阀是通过控制压差旁通阀的开度控制冷冻水的旁通流量，从而使供回水干管两端的压差恒定。广泛应用于中央空调集分水器之间,热力泵供回水之间,可有效保持设备不被损坏。

电动压差旁通阀常用于气体或液体系统，控制气体或液体管路与回路之间的压差。把电动压差旁通阀安装在系统水泵附件的旁通管路中，当系统压差增大而超 过控制阀设定值时，阀门则进而开大，使更多的水流经旁通阀，从而使系统压差减小。相反，压差的减小导致阀门开度减小从而使系统压差增加。

科士达机房精密空调自力式压差旁通阀

旁通阀又名自力式旁通压差阀，自力式自身压差控制阀  

自力式自身压差控制阀（旁通式-C）在控制范围内自动阀塞为关闭状态，阀门两端压差超过预设值，阀塞即自动打开。并在感压膜的作用下自动调节开度，保持阀门两端压差相对恒定，依靠自身的压差工作，不需任何外来动力，性能可靠。

科士达机房精密空调性能特点：    

自力式自身压差控制阀为电动压差控制阀替代产品。  

其优点是无需外动力，靠系统本身压力工作，有效的提高了运行安全系数，比传统电动压差控制阀更为安全可靠，解决了电动压差控制阀对电的信赖和电路出现问题造成机组损伤的机率，并且自力式自身压差控制阀便于安装，节省费用。

自力式自身压差控制阀的用途：  

自力式自身压差控制阀应用于冷（热）源机组的保护。安装于集、分水器之间旁通管上，当用户侧部分运行或变运量运行时，系统流量变小，导致压差增大，压差超出设定值时，阀门自动打开，部分流量从此经过，以保证机组流量不小于限制值。  

自力式自身压差控制阀应用于集中供热系统中以保证某处散热设备不超压或不倒空。比如某系统高低差较大，且不分高低区系统，这时如按高处定压，低处散热设备可能压爆；如按低处定压，高处倒空。

这种情况如热源在低外可在进入高区分支水管加增压泵，回水管加压差阀使高区压力经过提升后，由阀门再降到低区回水压力；如热源在高处可进入低区供水管加装压差阀，回水加增压泵，使通过阀门压力降低的循环水能回到系统中。 

空调系统中旁通阀的作用和原理： 

空调系统的的压差旁通阀是用在冷水机组的集水器与分水器之间的主管道上的，其原理是通过压差控制器感测集水器与分水器两端水压力，然后根据测试到的压力计算出差值，再由压差控制器根据计算出的差值与预先设定值进行比较决定输出方式，以控制阀门是增加开度或减少开度，从而来调节水量，以达到平衡主机系统的水压力的目的。 

There are two kinds of pressure differential bypass valves for precision air conditioning in Kosta engine room: self-operated pressure differential bypass valves and electric pressure differential bypass valves.
The electric differential pressure bypass valve controls the bypass flow of frozen water by controlling the opening of the differential pressure bypass valve, so that the pressure difference between the two ends of the backwater main pipe is constant. It is widely used between water collectors and water distributors of central air conditioning, and between water supply and return of thermal pumps, which can effectively keep the equipment from being damaged.
Electric differential pressure bypass valves are often used in gas or liquid systems to control the differential pressure between gas or liquid pipelines and loops. The electric differential pressure bypass valve is installed in the bypass pipeline of the system pump accessories. When the system differential pressure increases and exceeds the set value of the control valve, the valve opens further, making more water flow through the bypass valve, thereby reducing the system differential pressure. On the contrary, the decrease of pressure difference leads to the decrease of valve opening and the increase of system pressure difference.
Self-operated differential pressure bypass valve for precision air conditioning in Costa Machine Room
By-pass valve, also known as self-operated by-pass pressure differential valve, self-operated self-pressure differential control valve
Self-operated self-pressure difference control valve (bypass-C) is in the closed state within the control range. When the pressure difference between the two ends of the valve exceeds the preset value, the valve plug opens automatically. Under the action of pressure-sensing film, the opening is automatically adjusted to keep the pressure difference at both ends of the valve relatively constant. It works by its own pressure difference without any external power and has reliable performance.
Precision air conditioning performance characteristics of Costa engine room:
Self-operated self-pressure difference control valve is an alternative product of electric pressure difference control valve.
Its advantage is that it does not need external power and works under the pressure of the system itself, which effectively improves the safety factor of operation. It is safer and more reliable than the traditional electric differential pressure control valve. It solves the probability of unit damage caused by the electric differential pressure control valve's trust in electricity and circuit problems, and the self-operated differential pressure control valve is easy to install and saves costs.
Use of self-operated self-pressure differential control valve:
Self-operated self-pressure differential control valve is applied to the protection of cold (heat) source units. Installed on the bypass pipe between the collector and the water distributor, when the user side part runs or the variable volume runs, the flow of the system decreases, resulting in an increase in the pressure difference, when the pressure difference exceeds the set value, the valve opens automatically, and part of the flow passes thereafter, so as to ensure that the flow of the unit is not less than the limit value.
Self-operated self-pressure differential control valve is used in central heating system to ensure that the heat dissipation equipment does not overpressure or empty somewhere. For example, if the height difference of a system is large, and the system is not divided into high and low zones, then if the pressure is set at a high point, the heat dissipation equipment at a low point may burst; if the pressure is set at a low point, the high point will empty.
In this case, if the heat source is low outside, a booster pump can be added into the high-area branch pipe, and the pressure differential valve of the return pipe can raise the high-area pressure, then drop the pressure from the valve to the low-area backwater pressure; if the heat source is high enough, a differential pressure valve can be installed in the low-area water supply pipe, and the backwater booster pump can be added to return the circulating water through the valve pressure reduction to the system.
The function and principle of bypass valve in air conditioning system:
The pressure difference bypass valve of air conditioning system is used in the main pipe between water collector and water distributor of chiller. Its principle is to sense the water pressure at both ends of water collector and water distributor by pressure difference controller, then calculate the difference according to the measured pressure, and then decide the output mode by comparing the calculated difference with the pre-set value by pressure difference controller, so as to control the valve to increase. In order to balance the water pressure of the main engine system, the opening can be increased or reduced to adjust the water volume.

自力式自身压差控制阀的性能参数： 

根据用户的要求选择控制压差。 

控制压差在0.05~0.4Mpa范围内可任意调节。 

恒定阀门两端及控制系统压差，支持用户系统变流量运行。 依靠压差自动工作，无须外接动力，运行安全稳定可靠。 

介质温度：0--150℃。公称压力：1.6Mpa。 

科士达机房精密空调压差旁通阀的作用 

对于冷水机组来说 冷冻水流量的减小是相当危险的。在蒸发器设计中，通常一个恒定的水流量（或较小范围的波动）对于保证蒸发器管内水流速的均匀是重要的，如果流量减小，必然造成水流速不均匀，尤其是在一些转变（如封头）处更容易使流速减慢甚至殂成不流动的“死水”由于蒸发温度极低在蒸发器不断制冷的过程中，低流速水或“死水”极容易产生冻结的情况，从而对冷水机组造成破坏。因此，冷水机能的流量我们要求基本恒定的。但从另一方面，从末端设备的使用要求来看，用户侧要求水系统作变化量运行以改变供冷（热）量的多少。这两者构成了一对矛盾，解决此矛盾最常用的方法是在供回水管上设臵压差旁通阀。

科士达机房精密空调其工作原理是：在系统处于设计状态下，所有设备都满负荷运行时，压差旁通阀开度为零（无旁通水流量），这时压差控制器两端接口处的压力差（又称用户侧供，回水压差）P0即是控制器的设定压差值。当末端负荷变小后，末端的两通阀关小，供回水压差P0将会提高而超过设定值，在压差控制器的作用下，旁通阀将自动打开，由于旁通阀与用户侧水系统并联，它的开度加大将使供回水压差P0减小直至达到P0时才停止，部分水从旁通阀流过而直接进入回水管，与用户侧回水混合后进入水泵和冷水机组，这样通过冷水机组的水量是不变化的。 

水泵的运行有个高工作效率点，科士达机房精密空调流量的变化使电机在高效率点处左右移动，但最终的结果，只要管路特性不变化，水泵会自动调节到高效率工作点，我们可以通过调节管路特性去改变水泵的工作效率点，这样也就是说，在流量的变化的时候，水泵要不断的改变自己的运行状态，这导致了电流不段的变化（变大或者变小），这对电机的运行都是有害的，变频泵的电机容易烧毁也就是这个结果，因此，在一般的情况下，最好能使水泵在一个稳定的状态运行，这就要求我们用旁通，无论上面的负荷怎样变化，水泵都能在稳定的流量下运行，而不会导致电机的电流不段变化，使电机的寿命降低。

科士达机房精密空调玻璃钢冷却塔水量鉴定测试方法：

控制水资源，节约紧缺的资源，实现资源的充分利用，玻璃钢冷却塔得到了广泛的应用。它具备耐腐蚀、强度高、重量轻、占地少、并且运输、安装和维修都较方便，对空 调、制冷、空压站、加热炉及冷凝工艺等冷却水循环系统尤为适宜。综上优点，玻璃钢冷却塔越来越受到人们的广泛使用。在此，主要为您介绍一下其水量如何鉴定与测试：

A、科士达机房精密空调水量测量多在玻璃钢冷却塔的进水管上进行，当无法在进水管上测量时，也可在塔的出水沟道上测量。管道上测流量一般用超声波流量计或皮托管；在出水沟道上测流量可用流速仪，水量小时也可用矩形堰。为了保证测量的精度，各种测量仪器都要求有一定的直管段，可参阅技术规定。由于存在水量损失，所以进塔水量大于出塔水量。

B、空气量的测量机械通风玻璃钢冷却塔的风量测量一般在风机下的风筒内进行，测量断面可取在风机叶片下20厘米处，取的太大则到风筒收缩段，风速倾斜。这里风速较大，所以测量用皮托管和微压计。一般应测4个半径，半径方向同进风口成45度角。

C、水温的测量

Performance parameters of self-operated self-pressure differential control valve:
Control differential pressure is selected according to user's requirement.
The control pressure difference can be adjusted arbitrarily in the range of 0.05~0.4 Mpa.
Constant pressure difference at both ends of valve and control system supports variable flow operation of user system. Relying on differential pressure to work automatically, without external power, the operation is safe, stable and reliable.
Medium temperature: 0 - 150 C. Nominal pressure: 1.6 Mpa.
The Function of Pressure Differential Bypass Valve for Precision Air Conditioning in Costa Machine Room
For chillers, the reduction of chilled water flow is quite dangerous. In the design of evaporator, a constant water flow (or a small range of fluctuations) is usually important to ensure the uniformity of water flow in the evaporator tube. If the flow rate decreases, it will inevitably cause uneven water flow, especially in some transformations (such as the head), it will be easier to slow down the flow rate or even become stagnant "stagnant water" because the evaporation temperature is very low and the evaporator keeps refrigerating. In the process of freezing, low flow rate water or "dead water" is very easy to cause damage to chillers. Therefore, the flow rate of chillers is basically constant. On the other hand, according to the requirement of terminal equipment, the user side requires the water system to operate in varying amounts to change the amount of cooling (heating). The two constitute a pair of contradictions. The most common way to solve this contradiction is to install a differential pressure bypass valve on the water supply and return pipes.
The working principle of Kosta Precision Air Conditioning System is that when the system is in the design state and all the equipments are fully loaded, the opening of differential pressure bypass valve is zero (no bypass water flow). At this time, the pressure difference at the interface between the two ends of differential pressure controller (also known as user side supply, backwater pressure difference) P0 is the set pressure difference value of the controller. When the end load decreases, the two-way valve closes at the end, and the pressure difference P0 of the supply and return water will increase and exceed the set value. Under the action of the pressure difference controller, the bypass valve will open automatically. Because the bypass valve is parallel to the user side water system, its opening will increase, which will reduce the pressure difference P0 of the supply and return water until it reaches P0, and some water will flow through the bypass valve directly into the return water pipe with the user. When the side backwater is mixed, it enters the pump and chiller, so the amount of water passing through the chiller is unchanged.
There is a high efficiency point in the operation of the pump. The change of the flow rate of the precise air-conditioning in the Kosta engine room makes the motor move around the high efficiency point. But the final result is that as long as the pipeline characteristics remain unchanged, the pump will automatically adjust to the high efficiency point. We can change the efficiency point of the pump by adjusting the characteristics of the pipeline. That is to say, when the flow rate changes, water will move around the high efficiency point. Pumps need to constantly change their operating state, which leads to changes in current (larger or smaller), which is harmful to the operation of the motor. The motor of the frequency conversion pump is easy to burn down, which is the result. Therefore, in general, it is best to make the pump run in a stable state, which requires us to use bypass, no matter how the load above changes. Pumps can operate at a stable flow rate without changing the current of the motor, which reduces the life of the motor.
Testing method for water quantity identification of precision air conditioning FRP cooling tower in Costa Computer Room:
The FRP cooling tower has been widely used to control water resources, save scarce resources and make full use of resources. It has corrosion resistance, high strength, light weight, less land occupation, and is convenient for transportation, installation and maintenance. It is especially suitable for cooling water circulation systems such as air conditioning, refrigeration, air compressor station, heating furnace and condensation process. In summary, FRP cooling towers are more and more widely used. Here, I'd like to introduce how to identify and test its water quantity.
A. Precision air-conditioning water measurement in Costa Computer Room is mostly carried out on the intake pipe of FRP cooling tower. When it cannot be measured on the intake pipe, it can also be measured on the outlet channel of the tower. Usually, the ultrasonic flowmeter or Pitot tube is used to measure the flow rate on the pipeline; the flowmeter can be used to measure the flow rate on the outlet channel, and the rectangular weir can be used to measure the flow rate when the water volume is small.  In order to ensure the accuracy of measurement, all kinds of measuring instruments require a certain straight pipe section, which can be referred to the technical regulations. Because of the loss of water, the amount of water entering the tower is larger than the amount of water coming out of the tower.
B. Air volume measurement of mechanical ventilation FRP cooling tower is generally carried out in the wind drum under the fan. The measurement section can be taken at 20 cm below the fan blade, and the wind speed is inclined when the wind is too large to be taken into the shrinkage section of the wind drum. The wind speed is high here, so pitot tube and microbarometer are used for measurement. Generally, four radii should be measured, and the direction of radius should be 45 degrees with the inlet.
C. Measurement of Water Temperature

①科士达机房精密空调进塔水温 

测量仪表一般用水银温度计、热电偶或热电阻温度计。自然塔在进水管或竖井内侧，二者约差0．1℃。机械通风冷却塔在进水竖管上，横流式玻璃钢冷却塔在配水池内。

②出塔水温 

进塔的水流到出塔有一历程，所以测量时必须达到稳定状态，不然测出的数据是不可靠的。一个新的工况到稳定状态，自然塔约需40～60分钟，机力塔约需30～40分钟。

自然塔出塔水温在出水沟内侧，必须布置多个测点求平均值。机力塔出塔水温测点布置在水池出口或用集水槽布置在水池上边，然后将槽连接起来，在出水断面上测。如求多个集水槽出水的平均值则不准确。

D、大气压力、风速和风向测量

科士达机房精密空调大气压力影响蒸发散热，气压高蒸发慢，气压低蒸发快。大气压力用空盒式或水银式大气压力表测量。风速风向测量布置在塔的上风向，开阔地带，距塔30～50米，在地面以上1．5～2．0米处。测量仪表用带风向标的旋杯式风速风向仪或可连续记录的风速风向仪。自然塔在大气风速大于3米／秒，机力塔在大气风速大于4米／秒时，不进行测试。

E、环境空气干、湿球温度测量

环境空气干、湿球温度的测点，必须避开湿空气的回流范围，所以测点设远一些，距塔30～50米处。干、湿球温度的测量宜采用机械通风干湿表。这种仪表上装有小风扇，通过测温元件感热部分的风速可达2．5米／秒以上。通风的作用是为了校正辐射影响，所以温度计要绝对防止太阳或其他热辐射而放在气象亭内，距地面高度1．5～2．0米。

F、进塔空气干、湿球温度测量

科士达机房精密空调自然塔中此项测量合用环境空气干、湿球温度。机械通风玻璃钢冷却塔由于可能存在湿热空气回流，使进塔空气的干、湿球温度有别于环境空气的值，所以要另外测量。

科士达机房精密空调冷却塔降温效果原理与取决因素？冷却塔的作用是将携带废热的冷却水在塔体内部与空气进行热交换，使废热传输给空气并散入大气中。通用术语“冷却塔”是用来描述直接（开路）和间接（闭路）散热设备。虽然大多数想出一个“冷却塔作为一个开放的直接接触散热装置”，间接冷却塔，有时被称为“闭合电路的冷却塔”的是但也是一个冷却塔。

科士达机房精密空调一个直接的，或开路冷却塔是一个密封结构内部的手段，通过将循环水以喷雾方式，喷淋到玻璃纤维的填料上。填料提供了更大的接触面，通过水与空气的接触，达到换热效果。再有风机带动塔内气流循环，将与水换热后的热气流带出，从而达到冷却。

间接或闭路冷却塔并不涉及对空气和液体，通常是水或乙二醇混合物直接接触被冷却。不同的是开放式冷却塔，冷却塔的间接拥有两个独立的流体电路。一个是外部电路中的水是在第二赛道，这是管束外循环（非公开线圈）的连接到的热流体进程被冷却并在闭路返回。空气是通过循环绘制在整个热管外级联水，提供类似的蒸发冷却冷却塔开放。在运作的热流从内部流体电路，通过线圈管墙，外部电路，然后由空气和水的一些蒸发加热，到大气中。间接冷却塔的行动，因此非常相似，打开冷却塔有一个例外。这一过程被冷却液在一个“封闭”回路中，不直接暴露在大气或外部的循环水。

在科士达机房精密空调逆流冷却塔空中旅行向上通过填充或管束，对面水向下运动。在横流冷却塔空气水平移动通过填补水向下移动。

冷却塔还有一个特点，其中航空移动手段的机械通风冷却塔依靠电力驱动的风扇，以吸引或强行塔空气。自然通风冷却塔使用的排气烟囱的高增长提供空气浮力草案。风扇辅助自然通风冷却塔采用机械草案，以增加浮力的影响。许多早期的冷却塔靠的风向产生的空气草案。

如果冷却水从冷却塔回到重用，一些水必须添加到更换或构成，流动的那部分蒸发。由于蒸发包括纯净水，溶解的矿物质和其他固体循环水的浓度往往会增加，除非一些溶解，如打击固体控制手段下，提供。一些水也丧失了与正在开展的废气（漂移）飞沫，但是这通常是减少到一个非常小的数额安装挡板样装置，称为漂流排除，收集液滴。弥补的金额必须等于蒸发，吹下来，总漂移，如风力井喷和其他水渗漏损失，保持一个稳定的水位。

使用冷却塔是为了达到一定的降温效果，科士达机房精密空调降温效果取决于散热片、风机风量。冷却塔使用水量，通风条件，安装位置也会对其效果产生一定的影响。接下来我们一起来看一下冷却塔的散热片和风机风量对降温系统的影响：

一、散热片：是冷却塔的关键部件，小型塔一般采用PVC片材热压或热吸式，大型塔会采用木材，主要目的使空气与水的接触面在不影响风阻时，越大越好，同时热交换率也达到最大，散热片影响传热的效果的两个参数，主要是散热片形状和高度，在进行水塔安装，尽量不要损坏散热片，以免散热片水流不畅。

Water Temperature of Precision Air Conditioning Tower in Costa Machine Room
Measuring instruments generally use mercury thermometers, thermocouples or thermoresistive thermometers. The difference between natural tower and intake pipe or inner shaft is about 0.1 C. The mechanical ventilation cooling tower is on the intake vertical pipe, and the cross flow FRP cooling tower is in the distribution pool.
(2) Water temperature of outlet tower
The water flowing into and out of the tower has a course, so the measurement must reach a stable state, otherwise the measured data is unreliable. It takes 40-60 minutes for a natural tower and 30-40 minutes for a power tower to reach a stable state under a new working condition.
The water temperature of natural tower outlet tower in the inner side of the outlet ditch must be measured at several points to find the average value. The outlet water temperature measurement points of the power tower are arranged at the outlet of the pool or on the upper side of the pool with a catchment tank. Then the troughs are connected and measured on the outlet section. It is inaccurate to calculate the average value of effluent from multiple catchment tanks.
D. Measurement of Atmospheric Pressure, Wind Speed and Wind Direction
Atmospheric pressure of precision air-conditioning in Costa engine room affects evaporation heat dissipation. High air pressure evaporates slowly and low air pressure evaporates quickly. Atmospheric pressure is measured by empty box or mercury pressure gauge. Wind speed and direction measurement is arranged in the upper wind direction of the tower, open area, 30-50 meters away from the tower, 1.5-2.0 meters above the ground. Rotary cup anemometer with anemometer or continuously recorded anemometer is used for measuring instruments. The natural tower is not tested when the atmospheric wind speed is greater than 3 m/s, and the power tower is not tested when the atmospheric wind speed is greater than 4 m/s.
E. Measurement of Dry and Wet Ball Temperature of Ambient Air
The measuring points of ambient air dry and wet bulb temperature must avoid the backflow range of wet air, so the measuring points should be set farther, 30-50 meters away from the tower. Mechanical ventilation dry-wet meter is suitable for measuring the temperature of dry and wet bulbs. The instrument is equipped with a small fan, and the wind speed of the sensible part of the temperature measuring element can reach more than 2.5 m/s. The function of ventilation is to correct the radiation effect, so the thermometer should absolutely prevent the sun or other thermal radiation and be placed in the weather kiosk, 1.5-2.0 meters above the ground.
F. Measurement of Dry and Wet Ball Temperature of Air Entering Tower
The measurement of dry and wet bulb temperature of ambient air in the natural tower of precise air conditioning in Costa's engine room. The dry and wet bulb temperatures of the air entering the mechanical ventilated FRP cooling tower are different from those of the ambient air due to the possible return of hot and humid air.
Principle and Decisive Factors of Cooling Tower Cooling Effect of Precision Air Conditioning in Costa Machine Room? The function of cooling tower is to heat exchange the cooling water carrying waste heat with air inside the tower, so that the waste heat is transmitted to air and dispersed into the atmosphere. The general term "cooling tower" is used to describe direct (open) and indirect (closed) heat dissipation equipment. Although most people think of a cooling tower as an open direct contact radiator, an indirect cooling tower, sometimes referred to as a "closed circuit cooling tower", is also a cooling tower.
A direct or open circuit cooling tower in the KSTAR engine room is a means of internal sealing structure, which is sprayed onto the filler of fiberglass by spraying the circulating water. Packing provides a larger contact surface, through the contact between water and air, to achieve heat transfer effect. Then a fan drives the air circulation in the tower, and brings out the hot air flow after water heat exchange, so as to achieve cooling.
Indirect or closed-circuit cooling towers do not involve direct contact with air and liquids, usually water or glycol mixtures to be cooled. Unlike an open cooling tower, the cooling tower indirectly has two separate fluid circuits. One is that the water in the external circuit is in the second track, where the hot fluid process connected to the outer loop of the tube bundle (closed coil) is cooled and returned in a closed circuit. Air is drawn through a cycle through cascade water outside the entire heat pipe, providing similar evaporative cooling towers open. The heat flow in operation is heated from the internal fluid circuit, through the coil tube wall, the external circuit, and then by some evaporation of air and water to the atmosphere. The action of indirect cooling towers is very similar, so there is an exception to opening cooling towers. This process is carried out by coolant in a "closed" loop and is not directly exposed to the atmosphere or external circulating water.
The countercurrent cooling tower of the precision air conditioner in the Kosta engine room travels upward through filling or tube bundles and downward towards the water.  Air moves horizontally in the cross-flow cooling tower and moves downward through filling water.
Cooling towers also have a feature, in which mechanical ventilation cooling towers by means of Aeronautical mobility rely on electric fans to attract or force tower air. The high growth of exhaust chimneys used in natural ventilation cooling towers provides draft air buoyancy. The fan-assisted natural ventilation cooling tower adopts mechanical draft to increase the influence of buoyancy. Many early cooling towers relied on wind direction to produce draft air.
If the cooling water returns to reuse from the cooling tower, some water must be added to the replacement or composition, and the part of the flow evaporates. Since evaporation includes pure water, the concentration of dissolved minerals and other solid circulating water tends to increase unless some dissolution, such as by striking solid control means, is provided. Some water also loses droplets associated with ongoing exhaust (drift) droplets, but this is usually reduced to a very small amount to install a baffle type device, called drift removal, to collect droplets. The amount of compensation must be equal to evaporation, blowing down, total drift, such as wind blowout and other water leakage losses, to maintain a stable water level.
Cooling tower is used to achieve a certain cooling effect. The cooling effect of precision air conditioning in Costa Computer Room depends on the amount of heat sink and fan air. Cooling tower water consumption, ventilation conditions,

二、风机风量：科士达机房精密空调其主要加速塔中空气流动，加速空气与水的热交换，带走热量。影响风机风量主要是风叶形状即风叶宽长度和本身偏角，风叶转速、安装角度、转速与电机及传动比等。另外，在风量一定的情况下，同种类型塔，冷却水量小的比冷却水量大的冷却效果要好些。

科士达机房精密空调冷水机与一般用水冷却设备有何不同？现代工业技术突飞猛进发展的今天，为了提高生产效率，改善产品质量，降低生产成本，故对生产过程中的温度控制中的温度控制要求越来越高。

一般地用水冷却（即自然水和水塔散热方式两种）方式不能达到高精度、高效率控制温度的目的，因为自然水和水塔散热都不可避免地受到自然气温的影响，冬天水温底夏天水温高。科士达机房精密空调如果气温在30℃的情况下，要水温达到10℃，这几乎是不可能的，因此用这种方式控制是极不稳定的。

科士达机房精密空调冷水机与一般用水冷却设备是完全不同的，科士达机房精密空调因为冷水机具有完全独立的制冷系统，绝不会受气温及环境的影响，水温在5℃～30℃范围内调节控制，因而可以达到高精度、高效率控制温度的目的。冷水机设有独立的水循环系统，冷水机内的水循环使用，可大量节约用水。

在现代工业技术突飞猛进发展的21世纪，为了提高生产效率，改善产品质量，降低生产成本，故对生产过程中的温度控制要求越来越高。因此在各种行业都需要用到工业冷水机：

冷水机在可以配套真空设备使用，此类冷水机也符合高品质真空设备的需求，如分子泵、小型真空镀膜机等。

科士达机房精密空调冷水机可以配套医疗激光设备使用，此类冷水机独有的水质处理特点，使其成为医疗激光设备配套的理想选择配套实验室设备。

冷水机在使用的过程中一定要注意:首先使用之前槽内应该加入液体介质，其次使用工作电源应根据本机型号确定，电源功率应大于或者等于仪器总功率，电源必须有良好的接地，再次冷水机应安置在干燥通风处，后被及来那个侧离开障碍物400mm距离，最后在使用完毕冷水机后，科士达机房精密空调所有开关置关机状态，接下电源插头，用吸球，皮管把槽内的液体吸干。