CN202868891U - All-season full-automatic office building energy-saving air conditioner system - Google Patents

Abstract

The utility model provides an all-season fully automatic energy-saving air-conditioning system for office buildings, which is characterized in that it includes a buried pipe direct supply system, a water energy storage system and a water energy discharge system; The cold equipment is connected, and the buried pipe is connected with the floor radiant heating equipment, the fan coil unit and the fresh air unit respectively through the plate heat exchanger to form a direct supply system of the buried pipe; the beneficial effect of the utility model is to provide a suitable An energy-saving, environmentally friendly, comfortable, and highly automated air-conditioning system used in offices.

Description

All-season fully automatic energy-saving air-conditioning system for office buildings

technical field

The utility model belongs to the technical field of air-conditioning, in particular to an energy-saving, environment-friendly, comfortable and highly automated air-conditioning system suitable for use in offices. the

Background technique

At present, the air conditioning systems of most office buildings have the following problems:

(1) When supplying cold water in summer, low-temperature water supply is used to meet the needs of indoor air dehumidification. Generally, the outlet water temperature of heat pump units is 7°C, but the actual indoor temperature adjustment does not require low-temperature outlet water. The lower the temperature of the cold water outlet of the heat pump host, the greater the power consumption of the heat pump host, so the use of low-temperature outlet water to remove the indoor sensible heat load increases the power consumption of the system. the

(2) Although the ground-buried pipe ground-source heat pump system is an energy-saving and environmentally-friendly air-conditioning method recommended by the state, many projects cannot be implemented because it requires a large outdoor buried pipe space. the

(3) Although many buildings adopt ground-buried pipe ground-source heat pump systems, they do not turn on the air-conditioning system in consideration of operating costs during the transitional season in late spring and early summer, resulting in poor indoor temperature and humidity conditions; or turn it on in time during the transitional season In the air-conditioning system, due to the opening of the heat pump host, a large amount of energy and funds are wasted. the

(4) Most office buildings adopt fan coil units and other air-conditioning methods mainly for convective cooling and heating, which have poor thermal comfort. the

Contents of the invention

The problem to be solved by the utility model is to provide an all-season fully automatic energy-saving air-conditioning system for office buildings, which is especially suitable for use in office places. the

In order to solve the above technical problems, the technical solution adopted by the utility model is: an all-season fully automatic energy-saving air-conditioning system for office buildings, which is characterized in that it includes a buried pipe direct supply system, a water energy storage system and a water energy discharge system; The buried pipe is connected to the cooling equipment in the network computer room through the third ground source side water pump, and the buried pipe is connected to the floor radiant heating equipment, fan coil unit and fresh air unit respectively through the plate heat exchanger, forming a direct supply system of buried pipes The buried pipe is also connected to the first modular heat pump unit through the first ground source side water pump, and connected to the second modular heat pump unit through the second ground source side water pump;

The first modular heat pump unit is connected to the energy storage tank through the first chilled water circulating pump to form a water energy storage system; the energy storage tank is connected to the floor radiant heating equipment and the fan coil unit respectively through the plate heat exchanger It is connected with the fresh air unit to form a water energy discharge system; the second modular heat pump unit is connected to the floor radiant heating equipment through the second chilled water circulation pump, and the first modular heat pump unit is also directly connected to the ground through the first chilled water circulation pump. It is connected with the fan coil unit and the fresh air unit. the

Wherein, the fan coil unit is a low-profile fan coil unit arranged under the window along the wall. the

The fresh air unit is a rotary wheel type total heat exchange fresh air unit. the

The advantages and positive effects of the utility model are: due to the adoption of the above-mentioned technical scheme, the direct supply system of buried pipes, the water energy storage system and the water energy discharge system are arranged in a reasonable system form, which reduces the environmental pressure brought by the use of conventional energy sources , Contributed to the balance of the grid load, saved operating costs when the time-of-use electricity price was implemented, reduced the installed capacity of the heat pump unit, reduced the outdoor buried pipe space, reduced the overall initial investment of the air conditioning system, realized free cooling in the transition season, and at the same time Improves indoor thermal comfort. the

Description of drawings

Fig. 1 is a structural representation of the utility model

Figure 2 is a diagram of the operating conditions of the utility model air conditioner in summer

Figure 3 is a diagram of the operating conditions of the utility model air conditioner in winter

Figure 4 is a diagram of the operating conditions of the air conditioner in the transition season of the utility model

In the picture:

1. Buried pipes 2. Water pumps on the ground source side 3. Radiant floor heating equipment

4. Fan coil unit 5. Fresh air unit 6. Cooling equipment for network computer room

7. Energy storage tank 8. Plate heat exchanger 9. Ground source side water pump

10. Modular heat pump unit 11. Chilled water circulation pump 12. Ground source side water pump

13. Modular heat pump unit 14. Chilled water circulating pump

Detailed ways

As shown in Figure 1, the utility model includes a buried pipe direct supply system, a water energy storage system and a water energy discharge system;

The buried pipe 1 is connected to the cooling equipment 6 of the network computer room through the ground source side water pump 2, and the buried pipe 1 is connected to the floor radiant heating equipment 9, the fan coil unit 4 and the fresh air unit 5 through the plate heat exchanger 8 at the same time, forming an underground Buried pipe direct supply system;

The buried pipe 1 is also connected to the modular heat pump unit 10 through the ground source side water pump 9, and connected to the modular heat pump unit 13 through the ground source side water pump 12;

The modular heat pump unit 10 is connected with the energy storage tank 7 through the chilled water circulation pump 11 to form a water energy storage system;

The energy storage tank 7 is connected to the floor radiant heating equipment 9, the fan coil unit 4 and the fresh air unit 5 respectively through the plate heat exchanger 8 to form a water energy discharge system;

The modular heat pump unit 13 is connected to the floor radiant heating equipment 3 through the chilled water circulating pump 14 , and the modular heat pump unit 10 is also directly connected to the fan coil unit 4 and the fresh air unit 5 through the chilled water circulating pump 11 . the

Wherein, the fan coil unit 4 is a low-profile fan coil unit arranged under the window along the wall. the

Fresh air unit 5 is a rotary wheel type total heat exchange fresh air unit. the

Working process of this example: According to different time periods, different loads and different usage conditions throughout the year, the utility model has twelve working conditions: regular working hours in summer, regular overtime hours in summer, overtime hours in summer holidays, and regular working hours in winter , regular overtime hours in winter, overtime hours on winter holidays, regular overtime hours in late spring and early summer, regular overtime hours in late spring and early summer, overtime hours on holidays in late spring and early summer, regular overtime hours in late autumn and early winter, regular overtime hours in late autumn and early winter, late autumn Overtime during early winter holidays. By opening different modular heat pump units 10, 13, water energy storage system, water energy discharge system, and air-conditioning terminal at each time period, the system opening configuration is optimized to maximize energy saving and air-conditioning operating cost savings. The specific operation method is shown in Figure 2-4:

As shown in Figure 2, the operating conditions of the air conditioner in summer include:

1 ^# : Fresh air unit 5 is turned off, floor radiant heating equipment 3 is turned on, and fan coil unit 4 is turned on;

2 ^# : The fresh air unit 5 is turned on, the radiant floor heating equipment 3 is turned on, and the fan coil unit 4 is turned off;

3 ^# : The fresh air unit 5 is turned off, the radiant floor heating equipment 3 is turned off, and the fan coil unit 4 is turned on;

a ^# : The modular heat pump unit 13 is turned on, and the water energy discharge system is turned on;

b ^# : Modular heat pump unit 10 and modular heat pump unit 13 are turned on;

c ^# : The water energy discharge system is turned on;

d ^# : The modular heat pump unit 10 and the modular heat pump unit 13 are turned on, and the water energy storage system is turned on; as shown in Figure 3, the operating conditions of the air conditioner in winter include:

2 ^# : The fresh air unit 5 is turned on, the radiant floor heating equipment 3 is turned on, and the fan coil unit 4 is turned off;

4 ^# : fresh air unit 2 is off, floor radiant heating equipment 3 is on;

c ^# : The water energy discharge system is turned on;

d ^# : Turn on the modular heat pump unit 10, modular heat pump unit 13, and turn on the water energy storage system;

g ^# : the modular heat pump unit 13 is turned on;

As shown in Figure 4, the operating conditions of air conditioners in transitional seasons include:

2 ^# : The fresh air unit 5 is turned on, the radiant floor heating equipment 3 is turned on, and the fan coil unit 4 is turned off;

4 ^# : The fresh air unit 5 is turned off, and the radiant floor heating equipment 3 is turned on;

c ^# : The water energy discharge system is turned on;

f ^# : The buried pipe direct supply system is turned on;

An embodiment of the present utility model has been described in detail above, but the content described is only a preferred embodiment of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model. the

Claims (3)

1. An all-season fully automatic energy-saving air-conditioning system for office buildings, characterized in that: it includes a buried pipe direct supply system, a water energy storage system, and a water energy discharge system; The cold equipment is connected, and the buried pipe is connected with the floor radiant heating equipment, the fan coil unit and the fresh air unit respectively through the plate heat exchanger at the same time, forming a direct supply system of the buried pipe; The buried pipe is also connected to the first modular heat pump unit through the first ground source side water pump, and connected to the second modular heat pump unit through the second ground source side water pump; The first modular heat pump unit is connected to the energy storage tank through the first chilled water circulating pump to form a water energy storage system; The energy storage tank is respectively connected with the floor radiant heating equipment, the fan coil unit and the fresh air unit through the plate heat exchanger to form a water energy discharge system; The second modular heat pump unit is connected to the floor radiant heating equipment through a second chilled water circulating pump, and the first modular heat pump unit is also directly connected to the fan coil unit and fresh air unit through a first chilled water circulating pump. 2. The energy-saving air-conditioning system according to claim 1, characterized in that: the fan coil unit is a low-profile fan coil unit installed along the wall below the window. 3. The energy-saving air-conditioning system according to claim 1, wherein the fresh air unit is a rotary wheel-type total heat exchange fresh air unit.

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