System of ventilation and heating of bathrooms in multistory buildings

FIELD: heating.

SUBSTANCE: system of ventilation and heating of bathrooms in multistory buildings comprises heating devices of bathrooms, joined with supply and return pipelines of hot water circulation and air ducts of natural ventilation with connected ventilation holes. The novelty is the fact that the system additionally comprises a heat pump, the ventilation pump of which is made with input holes in the lower part joined via the collector with air ducts of natural ventilation, a unit of automatic control installed on a hydraulic module, a heat exchanger-capacitor of which via a circulation pump is connected with the supply and return pipeline of hot water circulation with heating devices of bathrooms, and also a heat-regulating valve installed on the return pipeline with coolant, for instance, freon in the liquid-state phase.

EFFECT: using sources of renewable energy and reduced air pollution, improved ventilation.

6 cl, 1 dwg

 

The invention relates to the field of heat and can be used for heating and ventilation in the bathrooms in apartment buildings, in particular, with the use of heat pumps.

Known installation for water heating, which uses thermal energy of the exhaust air (see patent DE 202006005469, F24D 17/02, published 22.06.2006). In the outlet duct of the known installation is mounted evaporator of a heat pump in which heat energy of the exhaust air is transformed into energy water heating, and missing power is replenished from an additional heat source.

A known solution cannot be used in high-rise buildings, as it does not guarantee the required temperature settings hot drinking water (not less than 60C) and requires the use of additional surround heaters (storage), which significantly increase the size and cost of the system.

A known system for ventilation of houses (patent DE 19614913, F24D 3/12 published 23.10.1997), in which for space heating uses the heat energy of the exhaust air. In this system, the return water in the return pipe is heated by a heat pump, which techtronic system is connected with the circulation loop Central heating. The main heating system is controlled from th the first node, located in the boiler room of the house and additionally for heating systems use the energy of the emitted air.

The disadvantage of this system is that known system is adapted for Central heating in the cold season. In multi-storey houses bathrooms are heated all year round, so the use of this system in the summer is impractical because of the removed heat in the ventilation system is not used effectively.

For ventilation, heating and bathrooms in residential apartment buildings currently widely used system of heating appliances bathrooms premises, for example in the form of coils, which are connected by piping to the system circulation, hot drinking water (Helgaud, Alleges; Usbadapter, Ethomas. The supply of heat. - C: Ausra, 1993, str-174. the closest equivalent).

Hot water in this system is supplied from a heat exchanger, located in thermal unit, or group of boiler. The temperature in the drinking water tap, and also the coils is in the range of 45-55C, so in the bathrooms of the rooms a small volume of air temperature is 20-22C. as the multi-storey house is equipped with a natural ventilation system, warm air from the bathrooms of the rooms through the respective vent holes will occupait in the ducts (ventilation ducts), which by natural draught is expelled into the atmosphere.

The disadvantage of this system is that a large number of unused thermal energy is not efficiently released into the atmosphere through vents, ducts, which increases the cost of thermal energy of the room. These costs increase especially in the cold season, with the advent of more intense gravitational pull of air. Heating appliances bathrooms areas coils in this system are part of a circulation system of drinking water, this makes increased demands on the materials used, they should be made of more expensive steel resistant to corrosion, which increases the price of equipment in the bathrooms of the rooms.

The objective of the invention is to reduce energy consumption for heating bathrooms premises in apartment buildings, reducing pollution and ensuring good ventilation of the premises.

The problem is solved in that known system of ventilation and heating bathrooms premises in apartment buildings containing heaters bathrooms premises connected supply and return piping of a circulating hot water and air ducts of natural ventilation with attached vent holes further comprises a heat pump, blower adjust the operating setting is performed with inlet holes at the bottom, connected via the collector ducts natural ventilation, the automatic control unit mounted on the hydraulic module, the heat exchanger-condenser through which the circulation pump is connected to supply and return piping hot water radiators offer space, as well as thermostatic expansion valve installed in the return pipe with the refrigerant, such as freon in the liquid phase state.

Air handling unit heat pump mounted in the attic or outside the apartment building, and the hydraulic module inside.

As heating appliances bathrooms space used towels, such as coils and/or the floor heating device.

Building air handling units are made from resistant to the influence of the atmosphere of materials, and in its bottom inlet for connection to the air ducts of natural ventilation.

The power of heat pump is calculated in proportion to the amount of capacity connected to heating appliances bathrooms of the rooms.

In a heat pump mounted axial fan, low pressure, providing the duct pressure corresponding to the natural draft within 7-12 PA.

The invention is illustrated in principle what hemou ventilation and heating bathrooms premises in apartment buildings.

The proposed ventilation system and heating bathrooms premises in apartment buildings contains the private premises attached vents 1 connected to the ducts of natural ventilation 2. The natural ventilation ducts 2, through the manifold 3 is connected with the inlet holes 4 arranged in the lower part of the air handling unit 5 of the heat pump. Unit 5 heat pump contains an axial fan low pressure 6, the evaporator 7 and the compressor 8. When the compressor 8 through the supply 10 and reverse 10' pipes filled with coolant, preferably freon, is connected with the hydraulic module 11 of the heat pump. The heat exchanger-condenser 12 hydraulic module 11 through the circulation pump 13 through the supply 14 and the back 14' pipelines circulation of hot water connected to the heating devices bathrooms premises, for example, the coils 15 or floor heating devices (not shown). In the return pipe 10' with the refrigerant in the liquid phase state, mounted thermostatic expansion valve 16. Hydraulic module 11 is installed independent of the automatic control unit 9.

Unit 5 heat pump can be mounted in the attic in case of multi-storey house who meet the sloping roof, or outside the apartment building, and the hydraulic module 11 - inside (not shown). In this case the ventilation unit 5 are made resistant to the effects of atmospheric materials. In the lower part of the casing of the air handling unit 5 are input 4 holes for duct connection natural ventilation 2.

Ventilation and heating bathrooms premises in apartment buildings is as follows.

Warm air bathrooms premises attached through vents 1, the natural ventilation duct 2, header 3 and the inlet 4, located in the lower part of the air handling unit 5 is supplied to the axial fan, low-pressure 6 and the evaporator 7. At the same time in the evaporator 7 flows liquid refrigerant return pipe 10'. In the evaporator 7 freon low temperature cools received in the casing of the air handling unit 5 of the natural ventilation air inlet 2 air to 9-12C, axial fan, low-pressure 6 is removed in the atmosphere. Freon is heated from the incoming warm air passes from the liquid to the vapor state, and the compressor 8 is compressed, thereby increasing its temperature. The heated refrigerant through the supply pipe 10 flows into the heat exchanger-condenser 12, which transmits its Teplova the energy to the water, circulating in the feed line 14 and heating appliances bathrooms premises, the coils 15. Further, the refrigerant returns to a liquid state and through thermostatic expansion valve 16 to the return line 10' is returned to the evaporator 7.

Circulation of hot water in a heating system ensures the circulation pump 13. The control unit 9 automatically regulates the temperature of the circulating hot water, and a built-in, the program automatically turns the compressor 8. The temperature of the heat exchanger-condenser 12 through the supply pipe 14 water depending on temperature parameters or required mode in heating appliances, the coils 15 is within 48-50C and the return temperature in the return line 14' - in the range of 42-45C.

To reduce power consumption of the control unit 9 provides adjustment of the temperature of supplied hot water at a preset program of time during the week or during the day. Because the heat pump efficiency is directly proportional to the temperature of the air passing through the evaporator, the proposed system is effective for heating bathrooms premises, as taken from the bathrooms of the rooms the air is warmest. Due to the fact that the power coils bathroom is small, the inflowing air is enough to heat pump maintained the temperature of the water flowing through the supply pipe 14 within 48-50C and provided for bathrooms to the desired temperature in the range of 20-22C. Under these conditions, throughout the year achieved the efficiency of the heat pump (COP) not less than 3.5 and 3.6.

Due to the fact that the proposed system is not only used for heating bathrooms, but also for their ventilation, it uses an axial fan with low pressure, providing the duct pressure corresponding to the natural draft within 7-12 PA. These parameters fan ensure good ventilation of all rooms, even with intensive change in the ventilation of individual rooms.

Proposed system of ventilation and heating in the bathrooms of the rooms in high-rise buildings compared to the prototype allows to reduce the cost of energy goes on heating, because it uses a large amount of energy removed through ducts natural ventilation of buildings.

Analysis of consumption of thermal energy model 54-x nine-storey apartment house with two entrances, area 3509 m, constructed prior to 1992, using the system of ventilation and heating bathrooms on the prototype showed that the consumption of heat the new energy is 140500 kWh/year or 217 kWh/month. for one coil bathing room.

The use of the proposed ventilation system and heating bathrooms premises reduces heat up to 110000 kWh/year or up to 160 kWh/month. for one coil bathing room. Heat saving is respectively 21%. Given the high rates of energy and fluids in the proposed system, ventilation and heating in the bathrooms of the rooms, the cost for one room will decrease by approximately 49%. Compared with the prototype of the proposed system of ventilation and space heating in apartment buildings provides for the use of renewable energy, and reduces pollution.

Table 1 shows emissions of CO2in multi-storey house. The results show that the use of the proposed system on a 58% reduction in the emissions of CO2that is especially true in the modern fight against the greenhouse effect.

Table 1
The type of heating systemConsumption of thermal energy for heating and ventilation of bathrooms premises, kWh/yearThe cost of energy production, kWh/year The number of emitted CO2kg/year
From the Central heatFrom the gridFrom exhaust air
The placeholder140500140500--33200*
The claimed system1100006300288007490013900**
*The allocation of emissions of CO2systems Central heating minus 17%, reaching for losses in the Central mains inlet hot water in multi-storey building, which is 0,236 kg/kWh.
**The allocation of emissions of CO2when using energy grid that is 0,400 kg/kWh.

The use of the proposed ventilation system and heating bathrooms premises in apartment buildings allows the use of heating devices (coils)made of inexpensive steel grades that can significantly reduce the cost of the entire system in a is m When remodeling or building new high-rise buildings becomes possible, without additional regulation to install floor heating in the bathrooms of the rooms, proportionally reducing thermal capacity of the coil. Application of the proposed system of heating and ventilation in high-rise buildings excludes the possibility to abuse the consumption of hot drinking water, because at the Department of circulation of drinking water from a heating system, bathrooms premises declared by the water flow becomes proportional to the amount of energy required for heating, i.e. 51 kWh/m3.

Thus, in comparison with the prototype, a new set of constructive elements of the proposed system can reduce energy costs for heating and ventilation, use of renewable sources of energy, reduce pollution and reduce the cost of heating appliances bathrooms of the rooms.

1. Ventilation and heating bathrooms premises in apartment buildings containing heaters bathrooms premises connected supply and return piping of a circulating hot water, and natural ventilation ducts with attached vent, what is new is that the system further comprises a heat pump, ventilation mouth of the transportation is performed with inlet holes at the bottom, connected via the collector ducts natural ventilation, the automatic control unit mounted on the hydraulic module, the heat exchanger - condenser through which the circulation pump is connected to supply and return piping of a circulating hot water heating appliances offer space, as well as thermostatic expansion valve installed in the return pipe with the refrigerant, such as freon in the liquid phase state.

2. The system according to claim 1, characterized in that the ventilation installation of the heat pump is mounted in the attic or outside the apartment building, and the hydraulic module inside.

3. The system according to claim 1, characterized in that the heaters offer space used towels, such as coils and/or the floor heating device.

4. The system of claim 1, characterized in that the casing of the air handling unit is made of resistant to the influence of the atmosphere of materials, and in its bottom inlet for connection to the air ducts of natural ventilation.

5. The system of claim 1, characterized in that the power of the heat pump is calculated in proportion to the amount of capacity connected to heating appliances bathrooms of the rooms.

6. System according to one of claims 1 to 5, characterized in that heat is the ASAS mounted axial fan, low-pressure, providing the duct pressure corresponding to the natural draft within 7-12 PA.



 

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