恒溫恒濕機(jī)與恒溫恒濕機(jī)組的區(qū)別在哪？
2018-05-15 22:41
恒溫恒濕機(jī)除了調(diào)節(jié)空氣溫度以外，還具有濕度調(diào)節(jié)、除塵等功能。與普通空調(diào)相比，恒溫恒濕精密空調(diào)要求能常年不停機(jī)地運行，因而其可靠性非常高。恒溫恒濕機(jī)的送風(fēng)系統(tǒng)有多種選擇。常見的有下送上回、上送下回、上送側(cè)回等。標(biāo)準(zhǔn)型的恒溫恒濕機(jī)采用中效過濾裝置來清潔室內(nèi)空氣。根據(jù)客戶需要，可以選擇亞高效的空氣過濾器。
In addition to adjusting the air temperature, the constant temperature and humidity machine also has the functions of humidity adjustment and dust removal. Compared with ordinary air-conditioners, the constant temperature and humidity precision air conditioning system can run all the year round without stopping, so its reliability is very high. There are many options for the air supply system of constant temperature and constant humidity machine. The common ones include the down delivery, the upper and the lower, and the upper side. The standard type constant temperature and humidity machine adopts medium efficiency filter to clean indoor air. According to customer needs, sub efficient air filters can be selected.
恒溫恒濕機(jī)組特點：
Characteristics of constant temperature and constant humidity unit:
1.制冷量一般在10HP-200HP之間；
1. the cooling capacity is generally between 10HP-200HP;
2.配置了電加熱和電極式加濕，加熱量一般富裕量較大，空調(diào)機(jī)配置加濕量均偏小，需要重新計算，一般需要加大一個型號或多配置一臺；
2. configuration of electric heating and electrode humidification, the heating amount is generally rich, air conditioner configuration humidification is small, need to be recalculated, the general need to increase a model or multi - configuration one;
3.有額定的風(fēng)量要求；
3. the rated air volume requirements;
4.有額定的冷卻水量要求；
4. the rated cooling water requirements;
5.冷凝器的阻力一般在0.82-3.45mH2O；
5. the resistance of the condenser is generally at 0.82-3.45mH2O;
6.空調(diào)機(jī)組尺寸較??；
6. the size of the air conditioning unit is small;
7.溫控范圍：18～25，靈敏度：±1；濕控范圍：50～70，靈敏度：±5；
7. temperature control range: 18~25, sensitivity: + 1; humidity control range: 50~70, sensitivity: + 5;
8.機(jī)外靜壓一般在100～550之間；
8. machine is generally between 100~550.
9.設(shè)計條件：進(jìn)風(fēng)干球溫度23℃，濕球溫度17℃；冷卻水進(jìn)水溫度30℃，出水溫度35℃；
9. design conditions: intake air dry bulb temperature 23 C, wet bulb temperature 17 centigrade, cooling water inlet temperature 30 C, effluent temperature 35 C;
一般適用在有溫濕度控制或整個設(shè)計面積不大的情況下。如果該工程面積較大，系統(tǒng)劃分較多，空調(diào)機(jī)房位置相對分散，管理和系統(tǒng)的控制就會帶不便，也不利于能量統(tǒng)一分配，能源浪費較嚴(yán)重。在這種情況下，一般面積在大于2000m2，建議采用冷水機(jī)組+組合式空氣處理機(jī)組的設(shè)計形式。
Generally, it is suitable for temperature and humidity control or the whole design area is not large. If the area is large, the system is divided more, the position of the air conditioning machine room is relatively scattered, the management and system control will be inconvenient, and it is not conducive to the unified distribution of energy, and the waste of energy is more serious. In this case, the general area is greater than 2000m2, and the design of chiller + combined air handling unit is recommended.
恒溫恒濕機(jī)組的用途分為兩塊：
The use of constant temperature and constant humidity unit is divided into two pieces.
1、恒溫恒濕車間，但無凈化要求；
1, constant temperature and constant humidity workshop, but no purification requirements;
2、既有恒溫恒濕要求，又需要凈化等級控制；
2, both constant temperature and humidity requirements, and the need for purification level control;
房間的情況：
The situation of the room:
1.）房間內(nèi)顯熱較大；
1.) the heat in the room is larger.
2. ）房間內(nèi)顯熱較小；針對以上兩點進(jìn)行分析：
2.) the sensible heat in the room is small;
a.從負(fù)荷方面考慮：
A. consideration of the load:
系統(tǒng)的送風(fēng)量是與房間內(nèi)的顯熱和送風(fēng)溫差決定的,而不是根據(jù)系統(tǒng)總制冷量(房間的顯熱和潛熱)計算得出的。恒溫恒濕機(jī)組制冷量一般顯熱占50%，潛熱占50%，相當(dāng)于新風(fēng)占整個送風(fēng)量的20%左右。當(dāng)房間內(nèi)顯熱較大，而新風(fēng)量不大時，計算的送風(fēng)量較大，就不能根據(jù)總制冷量選擇恒溫恒濕機(jī)組標(biāo)定的制冷量來確定。
The air volume of the system is determined by the sensible heat and air temperature difference in the room, not by the total refrigerating capacity of the system (the sensible heat and latent heat of the room). The cooling capacity of constant temperature and humidity unit is 50%, and latent heat is 50%, which is equivalent to 20% of the fresh air volume. When the heat is larger in the room, and when the new air volume is small, the amount of air supply is larger, and it can not be determined according to the refrigerating capacity of the constant temperature and constant humidity unit.
b.從機(jī)外余壓考慮：
B. from external pressure consideration:
恒溫恒濕，但無凈化要求系統(tǒng)對空調(diào)機(jī)組的機(jī)外余壓要求不高，主要克服送回風(fēng)管道、閥門、散流器、初效過濾器等，常規(guī)的機(jī)組即可滿足要求；
Constant temperature and humidity, but no purification requirements of the system for air conditioning units outside pressure requirements are not high, mainly to overcome the air supply and return pipes, valves, diffuser, initial filter, and other conventional units can meet the requirements;
既有恒溫恒濕要求，又需要凈化等級控制的系統(tǒng)對空調(diào)機(jī)組的機(jī)外余壓要求較高，一般系統(tǒng)總阻力在1100Pa～1400Pa之間，主要克服送回風(fēng)管道、閥門、散流器、初效過濾器（初阻力50Pa，終阻力100Pa）、中效過濾器（初阻力150Pa，終阻力300Pa）、高效過濾器（初阻力250Pa，終阻力500Pa）等，常規(guī)的機(jī)組就無法滿足要求。如系統(tǒng)需要設(shè)置二次回風(fēng)，潔凈式恒溫恒濕機(jī)組就無法選用；一次回風(fēng)的情況，恒溫恒濕機(jī)組+加壓箱的設(shè)計形式，由于在選擇加壓風(fēng)機(jī)的型號時無法與恒溫恒濕機(jī)組內(nèi)的風(fēng)機(jī)很難匹配，不同型號、不同功率的風(fēng)機(jī)在串聯(lián)或并聯(lián)時總風(fēng)量不是簡單的相加，計算相對較復(fù)雜；建議在一般設(shè)計過程中盡量設(shè)計為單風(fēng)機(jī)系統(tǒng)。
The system not only has the requirement of constant temperature and humidity, but also needs the system of purifying grade control to have high external pressure requirement for air conditioning unit. The general system resistance is between 1100Pa and 1400Pa, which mainly overcomes the air supply and return pipe, valve, diffuser, initial effect filter (initial resistance 50Pa, final resistance 100Pa), middle effect filter (initial resistance 150Pa, final). Resistance 300Pa), high efficiency filter (initial resistance 250Pa, final resistance 500Pa) and so on, conventional units can not meet the requirements. If the system needs to set two return air, the clean type constant temperature and constant humidity unit can not be selected; the first return air condition, the design form of the constant temperature and constant humidity unit + pressurization box, because it is difficult to match the fan in the constant temperature and humidity unit when choosing the type of the pressure fan, the different type and different power fan are in series or parallel. When the total air volume is not simply added, the calculation is relatively complex. It is suggested that the single fan system should be designed as far as possible in the general design process.
系統(tǒng)的運作原理
The operating principle of the system
恒濕恒濕機(jī)系統(tǒng)的運作是通過三個相互聯(lián)系的系統(tǒng)：制冷劑循環(huán)系統(tǒng)、空氣循環(huán)系統(tǒng)、電器自控系統(tǒng);
The operation of the constant humidity and humidity machine system is based on three interrelated systems: refrigerant circulation system, air circulation system, and electrical appliance automatic control system.
1，制冷劑循環(huán)系統(tǒng)
1, refrigerant circulation system
蒸發(fā)器中的液態(tài)制冷劑吸收空氣的熱量（空氣被降溫及除濕）并開始蒸發(fā)，比較終制冷劑與空之間形成一定的溫度差，液態(tài)制冷劑亦完全蒸發(fā)變?yōu)闅鈶B(tài)，后被壓縮機(jī)吸入并壓縮（壓力和溫度增加）,氣態(tài)制冷劑通過冷凝器（風(fēng)冷/水冷）吸收熱量，凝結(jié)成液體。通過膨脹閥（或毛細(xì)管）節(jié)流后變成低溫低壓制冷劑進(jìn)入蒸發(fā)器，完成制冷劑循環(huán)過程。
The liquid refrigerant in the evaporator absorbs the heat of the air (the air is cooled and dehumidified) and begins to evaporate, eventually forming a certain temperature difference between the refrigerant and the air, and the liquid refrigerant is completely vaporized into the gaseous state, then the compressor is inhaled and compressed (pressure and temperature increases), and the gaseous refrigerant passes the condenser (air cooling / water). Cold) absorbs heat and condenses into a liquid. Through the expansion valve (or capillary) throttling, the cryogenic low pressure refrigerant enters the evaporator to complete the refrigerant circulation process.
2，空氣環(huán)系統(tǒng)
2, air loop system
風(fēng)機(jī)負(fù)責(zé)將空氣從回風(fēng)口吸入，空氣經(jīng)過蒸發(fā)器（降溫、除濕），加濕器，電加熱器（升溫）后經(jīng)送風(fēng)口送到用戶需的空間內(nèi)，送出的空氣與空間內(nèi)的空氣混合后回到回風(fēng)口。
The fan is responsible for inhaling the air from the air inlet. The air passes through the evaporator (cooling, dehumidification), humidifier and electric heater (Sheng Wen). The air is sent to the user's space after the air inlet. The air sent out and the air in the space will be mixed back to the air vent.
3，電器自控系統(tǒng)
3, electrical automatic control system
包括電源部分和自動控制部分。電源部分通過接觸器，對壓縮機(jī)、風(fēng)扇、電加器器，加濕器等供應(yīng)電源自動控制分部分又分為溫、濕度控制及故障保護(hù)部分:溫、濕度控制是通過溫、濕度控制器，將回風(fēng)的溫濕度與用戶設(shè)定的溫濕作對比，自動運行壓縮機(jī)（降溫、除濕），加濕器，電加熱（升溫）等元件，實現(xiàn)恒溫恒濕的自動控制
It includes the power supply part and the automatic control part. Through the contactor, the power supply is divided into the temperature, humidity control and the fault protection parts of the compressor, the fan, the adder and the humidifier. The temperature and humidity control is through the temperature and humidity control, and the temperature and humidity of the return air is compared with the temperature and humidity set by the user, and the compressor is automatically run. Temperature, dehumidification, humidifier, electric heating (Sheng Wen) and other components to achieve automatic control of constant temperature and humidity.
