RU119446U1 - HEAT AND COLD SUPPLY SYSTEM OF RESIDENTIAL ROOM - Google Patents

Abstract

A heat and cooling system containing a hot water heating system, a supply and exhaust ventilation system in a residential area, including an adiabatic humidification section, a hot water supply system - DHW with water heating up to tw equal to 55 ° C, for hot water supply and equipment for cooling premises in summer to the sanitary standard, as well as a central automatic control panel, an installation for the utilization of low-grade heat of supply and exhaust ventilation and warm sewage water from sinks, showers and bathtubs, including a heat pump for heating air and a heat pump for heating water at night and a water circulation pipe system with valves and automatic valves, characterized in that the automatic control panel is made in the form of a central programmable controller connected to the air temperature control sensors installed in the living room, an outdoor air temperature sensor, a time control timer, a thermal compressor motor an air heating pump, an electric motor of a heat pump for heating water at night, electric motors for water circulation pumps, a water supply valve drive for irrigation of hygroscopic material in the adiabatic humidification section, valves on water circulation pipelines, as well as drives of automatic valves direct - open in winter and return - closed winter action on water circulation pipelines.

Description

The utility model relates to heat engineering, in particular to cold supply and heat supply systems of residential buildings.

Currently, the most widespread is the supply of hot water from the CHP (see the book Varfolomeev Yu.M., Kokorin O.Ya. Heating and heating networks: - M. INFRA-M, 2005). The energy indicator of the calorific value of fuel burned in high-pressure steam boilers is provided by heating water for heat supply networks of buildings from the heat of condensation of steam in electric generators, which provides high energy indicators while simultaneously matching close to 100% of the consumption generated by burning fuel, electricity and heat , because the outdoor temperature drops by 10 ° ÷ 12 ° C at night in winter, and domestic heat is negligible, the need for a residential building In heat for heating and ventilation systems, it rises to calculated values, and electricity consumption decreases to 5–6% of the calculated daily. With a drop in demand for electricity from the CHP, the thermal productivity of steam boilers decreases, and this causes a proportional decrease in heat production, which leads to a proportional decrease in the energy efficiency of the CHP. On night winter days, hot water boilers are switched on to provide buildings with hot water, which significantly reduces the energy efficiency of generating heat at CHPs for heating systems of residential buildings.

The closest to the utility model in terms of technical nature and the achieved result is the well-known heat and cold supply system containing a water heating system, a supply and exhaust ventilation system in a living room, including an adiabatic humidification section, a hot water supply (DHW) system with water heating up to t _w equal to 55 ° C for hot water supply and equipment for cooling rooms in the summer to sanitary standards, as well as a central automatic control panel, a low-potential heat recovery unit LA ventilation and warm sewage water from sinks, showers and baths, including a heat pump for heating air and a heat pump for heating water at night and a piping system for water circulation with valves and automatic valves (see utility model patent No. 108561, class F24F 5/00, 09/20/2011).

However, the lack of a microprocessor control system does not allow full use of the capabilities of the heat and cold supply system of the living room, which leads to an increase in the consumption of electric and thermal energy to create the optimal microclimate in the living room.

The objective of the utility model is to eliminate the disadvantages noted above.

The technical result consists in reducing the consumption of electric and thermal energy to maintain optimal living conditions in a living room.

This problem is solved, and the technical result is achieved due to the fact that the heat and cold supply system includes a water heating system, a supply and exhaust ventilation system in a residential area, including an adiabatic humidification section, a hot water supply (DHW) system with water heating up to t _w , equal to 55 ° C for hot water supply and equipment for cooling rooms in the summer to sanitary standards, as well as a central automatic control panel, a low-potential heat recovery unit for the supply and exhaust valve water and warm sewage water from sinks, showers and bathtubs, including a heat pump for heating air and a heat pump for heating water at night and a piping system for water circulation with valves and automatic valves, while the automatic control panel is designed as a central programmable controller connected to air temperature control sensors installed in the living room, outdoor temperature sensor, time-of-day timer, heat pump compressor electric motor air, the electric motor of the heat pump for heating water at night, the electric motors of the water circulation pumps, the actuator of the water supply valve for irrigation of hygroscopic material in the adiabatic humidification section, the valves on the water circulation pipelines, as well as the actuators of the automatic valves direct (open in winter) and reverse (closed) in winter) actions on pipelines of water circulation.

The drawing shows a schematic diagram of a system of heat and cold supply of a residential building.

The heat and cold supply system contains a water heating system 1, a supply and exhaust ventilation system 2 in a residential building, including an adiabatic humidification section 3, a hot water supply system 4 (DHW) with water heating up to t _w equal to 55 ° C for hot water supply and equipment for cooling rooms in summer to a sanitary standard, as well as a central automatic control panel 5, a low-potential heat recovery unit 6 of supply and exhaust ventilation 2 and warm sewage water from sinks, a shower and a bath 17, including hot air heating pump 7 and water heating heat pump 8 at night and a system of water circulation pipelines with valves 18 and automatic valves 16. The automatic control panel 5 is made in the form of a central programmable controller 9 connected to air temperature sensors 10 installed in the living room , an outdoor temperature sensor 11, a timer for controlling the time of day 12, an electric motor 13 of a compressor for a heat pump for heating air 7, an electric motor 14 for a heat pump for heating water 8 in face-to-face hours, to electric motors of water circulation pumps 14, a water supply valve actuator (not shown) for irrigation of hygroscopic material in the adiabatic humidification section 3, to valves 18 on the water circulation pipelines, and also to actuators of automatic valves 16 direct (open in winter) and reverse (closed in winter) ) actions on pipelines of water circulation.

The functioning of the heat and cold supply system is carried out by automatically controlling the operation of the heat and cold supply system using a central programmable controller 9, which selects the operating modes according to the readings of the sensor for monitoring the outdoor temperature 11 and the timer for monitoring the time of day 12. At 23:00 every day in winter from the command of the timer for controlling the time of day 12, the motors 13 and 14, respectively, of the compressor of the heat pump for heating air 7, the heat pump for heating water 8 and the electric motor are turned on Teli pump 15.

Warm sewage water from the sinks, shower and bath, collected in the tank 19, from the upper part of the latter through the filter 20 enters the heat exchanger 21 and heats water to about 9 ° C, which enters the evaporator of the heat pump for heating water 8, and after cooling it to a temperature of about 4 ° C, it returns again for heating to the heat exchanger 21. Due to the water heating obtained by the heat pump 8, the latter in the condenser heats the water supplied to the plate heat exchanger 22 to 60 ° C for heating in the last cold tap water in the system hot water supply 4 and recirculation water of the hot water supply system 4, and the sensors of the hot water supply system 4 monitor the last accumulation of hot water with a temperature of 55 ° C in the tanks of the hot water supply system 4, and when they are completely filled, the sensors of the hot water supply system signal water with a temperature of 60 ° C in a plate heat exchanger 23 for heating to 40 ° C water that is accumulated at night in winter for daily consumption in heat exchangers of a water heating system 1, which allows the use of l electric heater 24 only for night heating of the living room.

At 7:00 a.m., a command to stop the electric motors 13 and 14 of the heat pumps for heating air 7 and water 8 is received from the timer 12 for controlling the time of day 12, and the sewage water cooled overnight from the tank 19 is dumped into the sewer. At the same time, water with a temperature of 40 ° C accumulated in the tanks 25 of the water heating system 1 is supplied to the heat exchangers of the water heating system 1 and the air heater 26 for heating the living room, and if during the daytime in the winter for heating and ventilation systems, the heat accumulated during the night hours in the tanks 25 will be not enough, the temperature control sensor in the tanks 25 will turn on the electric heater 24.

If the hot tap water with a temperature of 55 ° C accumulated at night in the tanks of the hot water supply system 4 is not enough for hot water supply during the day, then, upon a signal, the sensor of the hot water supply system 4 will turn on the electric heater of the hot water supply system.

When the outdoor temperature rises in winter to -3 ° C, the electric motor 13 of the air heat pump compressor 7 is turned off and the hot water supply to the air heater 26 is turned off, and in the heat recovery unit 6 of the supply and exhaust ventilation, the thermal energy of the air discharged from the living room is used to heat the air supplied into the living room air. Hot water from the tanks 25 of the water heating system 1 will be supplied only to the heat exchangers of the water heating system, which will lead to a reduction in the consumption of hot water from the tanks 25, which will lead to a reduction in the night time of the electric motor 14 of the heat pump for heating water 8 and a decrease in the flow rate for heating systems and ventilation of electricity to generate heat.

At an outdoor temperature> 17 ° C, a cold flow rate through the air heater 26 will be required, the availability of which will be ensured from the night-time operation of the electric motor 15 of the compressor of the heat pump for heating water 8. In this mode, water that will be cooled from 10 ° C will accumulate at night in tanks 25, and during the day it will be consumed for cooling the supply air in the heater 26 and cooling the indoor air in the heat exchangers of the water heating system and the cold for cooling In the daytime, this is achieved in the evaporator of the heat pump for heating water 8 as a by-product of the nightly operation of the compressor of the heat pump for heating water 8 for the accumulation in the tanks of the hot water supply system of 4 heated tap water up to 55 ° C for use during the day of hot water in a residential building.

The operation of the main equipment of the heat and cold supply system according to the described scheme at night increases nightly consumption of electricity generated by heat and power plants in residential buildings, which will simultaneously increase the generation of heat of steam condensation for heating water for heat supply of residential buildings from centralized heating networks, and this will increase the energy indicator of the use of calorific value fuel ability. Therefore, residents of a dwelling, for example, a private house or an apartment building with heat supply, according to the described scheme, will pay for heat for heating, ventilation and hot water three times less than the existing tariffs for heat, which will allow at least halving the payment for housing services communal services and solve the most important social problem.

The proposed heat and cold supply system does not contain local boilers for burning fuel to heat water, but uses domestic heat emissions to generate heat, which ensures high environmental quality of this system. Getting cold to cool the living quarters of apartments in the summer for residents does not require additional capital costs and additional fees, because the resulting cold is a by-product of the production at night from the operation of the heat pump for heating the hot water system.

Claims (1)

A heat and cold supply system containing a water heating system, a supply and exhaust ventilation system in a residential building, including an adiabatic humidification section, a hot water supply system - hot water supply with water heating up to t _w equal to 55 ° C, for hot water supply and equipment for cooling in the summer premises to the sanitary standard, as well as a central automatic control panel, a low-potential heat recovery unit for supply and exhaust ventilation and warm sewage from sinks, a shower and a bath, including heat The first air heating pump and heat pump for heating water at night and a water circulation piping system with valves and automatic valves, characterized in that the automatic control panel is made in the form of a central programmable controller connected to air temperature control sensors installed in the living room, temperature sensor outdoor air, timer for controlling the time of day, electric motor of a compressor for a heat pump for heating air, electric motor for a heat pump for heating water in nye watches, electric pumps water circulation, the water supply valve actuator for irrigation of a hygroscopic material in the adiabatic humidification section, valves for water circulation pipes, as well as direct drives automatic valves - open winter and return - steps winter closed water circulation conduits.