分體承壓太陽能熱水系統(tǒng)：

該結(jié)構(gòu)是在原熱水器內(nèi)膽里增加換熱盤管。換熱介質(zhì)在盤管內(nèi)流動(dòng)，通過盤管把熱量傳遞給內(nèi)膽里的水。此種換熱結(jié)構(gòu)的水箱在市場上占有率較高。

該結(jié)構(gòu)的優(yōu)點(diǎn)是盤管用銅管彎曲成形，防腐性能，使用壽命長。缺點(diǎn)是：銅管的價(jià)格較貴，成本較高；由于盤管與內(nèi)膽里的水接觸面積一般會(huì)小于雙層內(nèi)膽結(jié)構(gòu)的換熱接觸面積，因此換熱速度比雙層結(jié)構(gòu)的換熱方式慢。

③控制器。控制器是整個(gè)系統(tǒng)的大腦，通過各個(gè)位置傳感器的電信號(hào)來控制整個(gè)系統(tǒng)的運(yùn)行，目前有兩種形式，一種是直接安裝在水箱上的控制器，另一種為了用戶的使用方便，安裝在便于操作的衛(wèi)生間或其他客戶要求的位置。

控制方式有多種，可通過溫差控制、較高溫控制、定時(shí)加熱控制等方式來調(diào)節(jié)水箱水溫。

④泵站。泵站內(nèi)設(shè)置循環(huán)泵、流量指示調(diào)節(jié)器、單向閥、泄壓閥和壓力表等[2]。

循環(huán)泵一般采用屏蔽式熱水循環(huán)泵。流量指示調(diào)節(jié)器指示系統(tǒng)循環(huán)時(shí)的流量值，并根據(jù)流量的大小調(diào)節(jié)循環(huán)泵的轉(zhuǎn)速。單向閥能在泵停止運(yùn)轉(zhuǎn)后防止倒流。泄壓閥能系統(tǒng)的安全，當(dāng)系統(tǒng)內(nèi)的壓力超過所能承受的較大值時(shí)開閥泄壓。壓力表顯示系統(tǒng)中的壓力值。

泵站和控制器可以組合成一體化的太陽能工作站。

⑤膨脹罐。整個(gè)系統(tǒng)是閉式液體循環(huán)系統(tǒng)，運(yùn)行壓力一般設(shè)在0.6～0.8MPa。介質(zhì)被加熱時(shí)會(huì)出現(xiàn)體積和壓力的膨脹，為了平衡容量和壓力，系統(tǒng)中需要使用膨脹罐。膨脹罐是一個(gè)由隔膜將氣體（一般是氮?dú)猓┡c系統(tǒng)分成兩部分的密閉式容器，它可以吸收和容納因受熱而體積膨脹的液體，平衡系統(tǒng)的容積和壓力。系統(tǒng)冷卻時(shí)，預(yù)充氮?dú)獾膲毫⒏裟ね频降撞?；系統(tǒng)升溫時(shí)，壓力增大，系統(tǒng)液體壓力高于預(yù)充氮?dú)獾膲毫?，加熱膨脹的介質(zhì)流入膨脹罐。

⑥連接管路。集熱器與貯熱水箱，還有其他部件之間的連接一般采用銅管或者PP-R管，外面包裹保溫材料減小熱損。

2 工作特點(diǎn)

①分體承壓陽臺(tái)壁掛式家用太陽能熱水器大大拓寬了太陽能熱水器的使用范圍，使得高層建筑非頂層的用戶也可以安裝使用太陽能熱水器。并且易與建筑景觀融為一體，改變了太陽能熱水器擺放無序的狀況。

②采用間接工質(zhì)換熱的強(qiáng)制循環(huán)方式，能大大地提高換熱效率，循環(huán)系統(tǒng)中只有少量的循環(huán)介質(zhì)，系統(tǒng)只要得到少量的熱量就可以啟動(dòng)，而不像傳統(tǒng)產(chǎn)品那樣必須先加熱真空管中的大量積水，因此在冬季比常規(guī)太陽熱水器能提供更多的熱水，這樣可以滿足熱水的舒適性要求，并且水質(zhì)安全，性能穩(wěn)定[3]

③采用全封閉結(jié)構(gòu)，貯熱水箱在室內(nèi)，熱損失小。

The split solar water heating is an active system, because it uses a pump with a controller to circulate the fluid between the heat pipe series solar collector and the storage tank, tank and solar collector are separate, while the collector is integrated in to the roof of the building, the tank and the pump station can installed anywhere of the building. The piping between the main components is made of brass and a special insulation with high temperature resistance for solar systems.
An Once Heat-exchange System is suit for climates where there is no risk of freezing. Recirculation freeze protection can be provided by the Recirculation feature in the controller. An Open Loop Water Heating System provides many advantages. It is the simplest and typically the least expensive active system to install. There is no heat exchanger, which allows efficient heat transfer directly to the water. The system operates at standard line pressure. It is simple to add capacity to the system if demand changes. The system integrates easily with existing systems.

• The main components ofOnce heat-exchangesplit solar water heating:
  1) SIDITESolar collector
  2)Solar Workstationincluding:
  Circulation pump,
  Check valve,
  SIDITE intelligentsolar controllerwith sensors
  rass connector
  3) Solarpressurized tankfrom 100L to 500L
  
• Advantages of SIDITE split solar water heating:
  1) No disorder water tank on your roof
  SIDITE split solar water heating systems is using a high efficiency solar collector on your roof
  and a high pressurized storage tank in the house. Integrated in to the roof of the building
  perfectly.
  2) The perfectsolar collectorfor domestic hot water heating system can be combined with
  existing energy source, such as your gas water heater, electric water heater, boiler, etc.
  3) There have an auxiliary heating device--electric heater booster in the tank, so providing hot
  water in case of cloudy or rainy days, you will no need to worry about it.
  4) No water inside the tube, the system can still in service even with several tubes breakage.
  5) Completely automatic.
  6) Cut out your energy bills
  Hot water heating (on average) accounts for 26% of your annual energy bill. With a SIDITE
  solar water heater you could generate enough solar energy to heat 70% of your hot water,
  FREE, year after year!