Hotel to delete a total construction area of 4 m z, including air conditioning area of 27 cafe m 2. No rooms, presidential suite, deluxe suite, restaurants, bath and other places. By the calculation of heating and air conditioning system cooling load for 2 okw, heat load is 2400 kw.

Wash with hot water, life is (y) 45 20 m 'son, about coffee m 5 daily water, tap water supply temperature of 12 curtilage.

The location of the groundwater in the water supply capacity of 80 m 'son, groundwater temperature for 14 neon. Electricity price for o. 63 city (kw 'h), natural gas price is 2.5 do M: combustion heat value is 9. Delete kcaUNm' (37.68 U/NM ') (NM 'refers to the volume of a standard conditions).

2.4.2 for central air conditioning system is introduced

According to the analysis of heat and cold source choice method were analyzed, and finally determine the heating in winter, is abundant with water source heat pump units, boiler auxiliary, and make full use of the hotel when * refrigeration recovery of waste heat from the hot water system of waste heat from hot water, solid 23, figure 2, and 4, respectively is the cooling and heating system flow chart, models for LwL unit

W53300HB / / 2.

Hotel living hot water is provided by two aspects: 'is the water source heat pump units heat collector, a vacuum boiler. In the recovery of heat source of heat pump units can meet the demand of domestic hot water, life depends on water source heat pump hot water unit to provide; When the water source heat pump heat recovery device cannot meet the demand of domestic hot water heat recycling, through the vacuum boiler

Added.

At the beginning of winter, at the start of heating and heating close to the end, because the heat load is small, water source heat pump units completely can meet the heating requirements of the building. Even. It can also be through cement heat pump units of the heat collector for making enough hot water of life. Water source heat pump heating, the source water from groundwater and fire pool. Fire pool principal juice temperature for 10 curtilage, when the temperature inside the fire cistern below 10 y, T the pumping system, groundwater flows into the fire pool after water source heat pump units, increase his fire water amount, at this point, the water level switch will be according to the bureau of water level is low, to control the solenoid valve in the water well GuanLang, will be too much water back to the ground. But in the water source heat pump units to stop operation, and fire pool temperature below 10 y, can't open the solenoid valve to the back well, rather than through fire vent pipe to the water and drainage of the pool. Waterproof he played the energy storage in the system, save water and make up for a lack of ground water, etc. This is because when the water source heat pump units r1I water temperature at or near the fixed value, the compressor is in part uninstall or stop state, the demand for groundwater denier reduce or even to zero, but at this point, the groundwater supply may not immediately reduce accordingly, redundant groundwater heat cannot be used: the fire pool water supply ways, only when the fire pool temperature lower than 101 I, will begin to allow the groundwater, so to save the groundwater ChouQuLiang. Adopting this method, the unit heat load is small, the groundwater basin filling water to the system, make the fire pool temperature increase, the increase in load. Groundwater direct water supply can not meet the requirement of the system is running, because of the fire in the mix of the water in the pool, to still be able to guarantee the normal operation of the unit. Fire pool effectively solve the groundwater supply deficiency and excess of question.

LwwS3300HM type heating standard operating mode for the groundwater of the unit in and out of the water temperature 16 ℃ / 9 y, demand for groundwater is 1399 m/h, 73 kw, the heating capacity of 1] gives the groundwater to the return water temperature of 10 y/y, 6 due to the return water temperature is reduced, evaporation temperature of the water source heat pump units will be less, about to fall in 312, is about o neon. In general, the unit system is proportional to the compressor suction exhaust heat, here is the quality of the refrigerant of the suction or discharge amount of reflect. The volume of the compressor suction amount although influenced by outside pressure differential absorption, but the effect is very small, so the demand on the calculation results not very accurate qian condition. Can think the same. By looking at the F - 22 saturated liquid refrigerant gas liquid table shows: oY saturated volume of a gas for o. 04710 m '/ k853Y saturated gas volume for o. 04291 m'/Lg. Can calculate the actual heating capacity decreased percentage of the unit (o. 0471 M '/ k8-0.0429 M'/kg)/o. concave 10 M '/ kg M100 approximately % = 9%, that is to say, water source heat pump's actual heating capacity is about 1173 kw x (1-9%) = 1 d67kw: due to its lower temperature, actual heating efficiency of the unit will be 19 j r down now. But I: o degrees deficiency is very big, to calculate the flow of groundwater impact is not big. So. And according to the quantity of heat is proportional to the absorption of groundwater longing for juice is the demand of the groundwater. Water source heat pump units is also said to F water standard requirements also fell by 9%, the real live

139.9? N, / (h.) x (2-9%); M '1273 / (h).

Due to the water inlet water temperature of 1412 F, discharge temperature is 6 Y, standard unit ash ground demand is converted to the actual demand for 127.3 m '/ (h) x (1-9) F Y/(14-6) Y = 31]. 4 m'/(h.) that is to say: o sail set is run at full capacity, plant water supply a can meet the normal operation of the water source heat pump units. So, only with the shame of fire pool can function to guarantee the intermittent operation, water source heat pump machine straight boomed reduce boiler running time. So as to achieve the aim of save running cost jin:

Heat recovery exchanger: winter, bath water and the waste water of life Fei average temperature is about 30 neon, 10 curtilage inside the fire cistern water into hunger group. From the unit discharge temperature of about 6 y. From the unit discharge scoop water bath, the life waste water through the heat exchanger heat exchange, sunken baths, life waste water in the heat. Raise the temperature of back to the fire fighting water in the pool, so as to reduce the demand for the groundwater, in turn, r water supply in places such as the star of f. due to recycle the waste heat from the bath, life, make the water temperature inside the fire cistern lead high, thus raising the water hot corn heating efficiency of the unit.

Fire pool in the role of the refrigeration unit, refrigeration, water source heat pump units of standard working condition of groundwater in and out of the water limit of 20 y/I: 30, water consumption is 118.5 m/h x '

2 = 237 m/h. Due to groundwater water temperature of about 141, I can also to increase the return water temperature of groundwater to fly: 35, then the water nest in full load operation of wealth

Converted to the actual demand, the demand for groundwater 237 m/h '(30-20) x/Y (35-14) ℃ 2113 m/h, and the factory only 80 m/h, water capacity refrigeration unit

Water shortage '113 m/h - 80 - m' son = 33 m/h. If you don't take other measures, water source heat pump woven is unable to run normally. To meet the demands of system refrigeration uJ to add cooling tower were used to solve, but add cooling tower there is a problem, that is where the cooling tower. A lack of cooling tower in the direction set space, on the other hand, the cooling tower will produce noise, water spray, it will affect nearby the environmental comfort of the room. In the case of other ways to solve do not use as much as possible.

Due to the system's maximum cooling load in 12 at noon, only left in 12 provinces need two sets of water source heat pump units run continuously at the same time, other time don't need two units run continuously at the same time. Even open a water source heat pump units can only meet the demand of refrigeration of the hotel. Therefore, when open a water source heat pump units, the demand for groundwater is only 113 m '/ ki 2 = 56.5 m/h. As the water source heat pump is run between Yin, to the actual demand is less than this value of groundwater, at this point you can via the submersible pump continuous fire water tank, the temperature dropped to 20 redundancy, high cooling load, even if there is no groundwater two water source heat pump units at the same time also can guarantee normal operation of continuous 1 (35-20) Y M 500 M '6/4 (30-20) Y M, 237 M'/hf = 3.16 h. Fire pool here fully solved the problem of insufficient water supply c F

In addition, by to the need for building with 100 M 'every day life of hot water, and the 100 M from 12 Y' water heated to 45 Y blade to save at least 100 M, M (45-12) Y/Y = 157 M (35-14)? , on average, 57 m/J, to] "I 24 h = 6.5 m/h c not only make the system run more stable and reliable, also reduced the FeiJing of making living hot water at the same time, it is kill two birds with one stone.