Figure 2-5 is a typical water loop heat pump air conditioning system diagram, because for the user in the same 'moment some require refrigeration, some need to heating, when circulation water temperature is higher than 30 it, and the cooling tower, reduce the temperature of the circulation water through the cooling tower circulating system to below 30 y, cooling tower stop working. When the circulation of the water temperature is less than 15 y p closed cooling tower and the relevant circuit, so by the boiler to heat circulating water, improve water circulation system, control the temperature of circulating water in the left have about 20 y. The system for large span buildings, has the practical value - 2. Because, outside the building area need heating in winter, and within the area does not need heating and cooling, need refrigeration area within the emission quantity of heat to the circulation system, to meet the requirements to heating of the outer zone. Heat load in the early winter and late winter area is not large, the district heating to the circulation system, complementary, both inside and outside area, without having to open the boiler, and even rise and cooling tower, to cool the water in the circulatory system. Only in the winter, outside the building area heat load is bigger, the demand for refrigeration in inner zone is small, only need to open the boiler, to heat the water in the circulatory system. Using this kind of air-conditioning system is very applicable for J large-span buildings, but for the span of the small building is not suitable for this kind of design.

Due to the smaller span buildings no inside and outside the area. When the winter heating, if any, within the area of the K is small. Winter heating, through the area within the discharge quantity of heat is limited to the circulatory system * winter heating, heat within the circulatory system to provide the most want to rely on boiler, it is not economic. For circulating water by copper furnace heating, cannot be directly sent to the interior after heating, heating for buildings. It must be through the building of the operation of the water source heat pump units to the indoor heating, the big question is gild the lily 'b by the boiler manufacture cannot directly to heat buildings heating, it does not reduce the amount of heating boiler, but virtually increase the power consumption of the system, it is 4 \ economy: so for small span buildings should not be in the form of this kind of air conditioning. , of course, if the building has a large heat dissipation to refrigeration room USES this kind of design is Mf.

There is' a building water loop heat pump system design shows part of the data:

\"Went the way the water loop heat pump air conditioning system, indoor small room USES condole top ring hot water units, large room with vertical water loop heat pump units. Vertical water loop heat pump machine threading is installed inside the closet, easy to decorate.

Ning the design cooling load is 4979 kw, in the roof have a set of 936 m/h 'open type cooling tower, water loop heat pump units for high water quality requirements, a layer of heat exchange station in the factory with the three groups of plate heat exchanger made of cooling water scoop of circulating water for complete separation, the design parameters of cooling water for 37 ℃ / 32 y, through the plate heat exchanger after heat exchange circulating water for 4012/35 y. Cooling water system USES the dosing process, circulating water use demineralized water, and multifunctional water processor is set on the return water pipe.

Winter heat load is 3408 kw v cavity design need to put in the heating load is 2740 kw, auxiliary heating source for this area of gas boiler, the boiler can provide 115 y / 70 transfer of high temperature water, through 'floor underground heat exchanger station (share) with cooling water system of plate heat exchanger heat transfer, provide water loop heat pump units with 16 y/y

The circulating water ',

Circulating water system of soil riser USES the same program, at each floor level asked YanHeng valve is set on water ZhuGanGuan, facilitate the balance of the air conditioning system and regulation. By ten system circulating water close to room temperature, the J: process has not been circulating water piping system for insulation and prevent dewing.

The first layer and part layer 2 security office to set a new trend person to meet the demand of indoor fresh air. And recycling exhaust the energy; Flat part of the standard layer of the location of the reserved factory installed new trend person.

The characteristics of water loop heat pump air conditioning system in this Ding Cheng:

Energy cost measurement is simple: in accordance with the current energy costs independent measurement method.

Flexible regulation, individual room or area to H independent use at night or holiday season, 14 sets of heat pump air conditioner at any time to select the cooling or heating:

Energy: birth control during the transition season or winter when lee has both cooling and heating, beam heating needed to heat the exhaust heat of air conditioning and heat can be used, the energy transfer within buildings, reduce the energy consumption of buildings, a total of all the whole building energy consumption is zero, the energy saving effect is obvious. Driven refrigeration station reduce room area, no large air conditioning room, such as people make boiler room capacity significantly reduced about 20%.

Water loop heat pump ning regulating system of indoor machine has small volume, cover an area of an area small, life is more flexible, this project is still in the lower layer (2) delete m) can be installed air conditioning made a great contribution.

No line of decentralized air conditioning separate-bodied air-conditioners, make it easier to building facade treatment c

Let's look at the \"save energy\" section? \"Winter series design heat load is 3408 kw, need auxiliary heating load is 2740 kw,\" the injured away to save heat (3408-2740 = 668 kw) is a water heat pump units runtime of electrical power consumption, no energy saving? If the gas boiler than the electricity economy, it is necessary to travel through the water loop heat pump for heating? Why don't you directly to the system directly with hot water boiler heating? This is not the 'for more? If electricity than using gas furnace are economy, why not directly by electric heating? It is necessary to adopt gas boiler?

\"Energy meter denier simple\", said the household according to white, water loop heat pump unit power consumption how much to pay the electricity bills, so, how to allocate the cost of gas boiler 'heat meter, adopt what kind of gas boiler heating way hold heat meter' fees according to how much their families water ring heat millet electricity share. This can be, but the change of water temperature, water will affect the efficiency of the user water loop heat pump units, and low water temperature, small water supply unit efficiency is low, but to pay larger operation cost, this make sense? However, for billing is practical c at cooling in the summer

In \"during the transition season have both cooling and heating, ning of heat removal and hot denier can be use for heat pump heating, energy transfer inside the building, reduce the energy consumption of buildings, and even the whole building energy consumption is zero, the energy saving effect is obvious.\" It seems very reasonable, and the structure of the largest dimension of 49.2 M x 25 M, in transitional season, at the same time need to cooling and heating time is how many? Very little or even no.

Not only that, 115 y / 70 y water into t6Y / 2 ly, is a high-grade heat energy is converted into low grade thermal energy, this itself is a kind of great waste.

As the hvac designer, when the air conditioning system for the user to select, should according to the actual situation of the building for the user to select... Lowest operating cost, minimum investment ways of air conditioning. When choosing a form of central air conditioning, learn to deny ourselves, check their deficiency in the design, so as to provide the user with a small central air conditioning design more perfect.