CN110006120B - Circulating heating and refrigerating system in office building - Google Patents

Abstract

The invention relates to the technical field of building heating and cooling, in particular to a circulating heating and cooling system in an office building, which includes a hot water tank and a cold water tank installed in a deep well of the building, and the hot water tank and the cold water tank are connected by pipelines. Refrigerator, the inside of the hot water tank is connected to a main water supply pipe through a water pump, and the top of the main water supply pipe is respectively connected to a first hot water branch pipe and a second hot water branch pipe through a three-way valve. One end of the water branch pipe and the second hot water branch pipe close to the main upper water pipe is respectively connected with a No. 1 valve and a No. 2 valve. The beneficial effect of the present invention is easy to realize laying in the building, and achieves good heating and cooling effects. The circulation heating and cooling method is adopted to heat and cool the building. Compared with the conventional heating and cooling system, this system is closed Circulation system, lower investment cost, can increase the initial temperature of hot water entering the indoor heating coil, and improve the heat exchange efficiency of the overall system.

Description

Circulating Heating and Cooling System in Office Building

technical field

The invention relates to the technical field of building heating and cooling, in particular to a circulating heating and cooling system in an office building.

Background technique

A few days ago, my country has paid more attention to environmental governance and the development of energy-saving buildings. The research and promotion of building energy-saving technologies has shown a thriving situation. The country has introduced energy-saving regulations to reduce building energy consumption. Green buildings with high comfort and low energy consumption are a model of energy-saving buildings. It is jointly realized by multiple core technologies such as roof insulation system. These major systems are organically combined to closely link health, high comfort and energy saving.

Chinese application number CN201710436647.2 provides a solar air heating, heating, and cooling system; it relates to the field of comprehensive utilization of solar energy. The invention uses air as a heat transfer medium, and is characterized in that it includes a solar heat collector with air as a heat transfer medium. The water heater and air supply pipe connected to the outlet of the solar collector through the second and third steering valves; the return air pipe for air circulation with the air supply pipe; the fan connected to the inlet and the outlet of the return air pipe, and the fan connected to the outlet of the fan The first steering valve; the outlet of the water heater is connected to the inlet of the fan; the fan is connected to the inlet or outlet of the solar collector through the first steering valve; Cooling and/or heating of the power source. The present invention integrates multiple sets of equipment into one, and under the premise of maximizing the use of solar energy, assists the use of electric energy and makes full use of low-peak electric energy, so that users can save energy and save installation costs; finally achieve high-efficiency, energy-saving heating, heating, and cooling Effect.

However, a solar air heating, heating, and cooling system does not integrate the entire system, and uses air as the heat transfer medium, which has poor heating and cooling effects on the interior of the building, and when used by residents, multiple sets of equipment need to be installed. Expensive, not conducive to extensive promotion and popularization.

Contents of the invention

The object of the present invention is to provide a circulating heating and cooling system in an office building to solve the problem of not integrating the whole system proposed in the above background technology, using air as the heat transfer medium, poor heating and cooling effects in the building, and for When residents use it, multiple sets of equipment need to be installed, which is expensive and unfavorable for widespread promotion and popularization.

The technical solution of the present invention is: the circulating heating and cooling system in the office building includes a hot water tank and a cold water tank installed in the deep well of the building, and a refrigerator is connected between the hot water tank and the cold water tank through pipelines. The inside of the hot water tank is connected to the main water supply pipe through a water pump, and the top of the main water supply pipe is respectively connected to a first hot water branch pipe and a second hot water branch pipe through a three-way valve. One end of the second hot water branch pipe close to the main upper water pipe is respectively connected with a No. 1 valve and a No. 2 valve, and the ends of the first hot water branch pipe and the second hot water branch pipe far away from the main upper water pipe are connected with a heat supply pipe, so The ends of the first hot water branch pipe and the second hot water branch pipe close to the heating pipe are respectively connected with No. 3 valve and No. 4 valve, and the inside of the cold water tank is connected with the first cold water branch pipe and the second cold water branch. One end of the first cold water branch pipe and the second cold water branch pipe close to the cold water tank is respectively connected with No. 7 valve and No. 8 valve, and the end of the first cold water branch pipe and the second cold water branch pipe is connected to There are refrigeration pipes, the ends of the first cold water branch pipe and the second cold water branch pipe close to the refrigeration pipes are respectively connected with No. 5 valve and No. 6 valve, and the indoor heating coil is connected between the heating pipe and the refrigeration pipe .

Further, a condenser is connected through a conduit between the second hot water branch pipe and the second cold water branch pipe, and an evaporator is connected between the first hot water branch pipe and the first cold water branch pipe through a conduit, so A compressor is connected between the evaporator and the condenser through a conduit.

Further, the indoor heating coils are respectively installed in rooms on each floor of the building, and the exterior of the indoor heating coils is covered with a protective cover.

Further, the conduits at both ends of the evaporator are respectively located below the No. 3 valve and the No. 5 valve, and the conduits at both ends of the evaporator communicate with the first hot water branch pipe and the first cold water branch pipe respectively.

Further, the lower sides of the hot water tank are respectively connected with input pipes and output pipes, and the lower side of the hot water tank is provided with an electric furnace through the input pipes and output pipes.

Further, a return pipe and a riser pipe are respectively arranged on both sides above the refrigerator, and a lift pump is connected to the end of the riser pipe close to the refrigerator, and the top ends of the return pipe and the riser pipe are connected to a cooling tower.

Further, the hot water tank is provided with a solar thermal collector plate for heating the hot water tank, the solar thermal collector plate is installed on the roof of the building, and the solar thermal collector plate is connected with the hot water tank through a heat pipe.

Further, when heating the inside of the building, valves No. 4, 1, 6 and 7 are all opened, and valves 2, 3, 5 and 8 are all closed.

Further, when cooling the interior of the building, valve No. 2, valve No. 3, valve No. 5 and valve No. 8 are all opened, and valve No. 4, valve No. 1, valve No. 6 and valve No. 7 are all closed.

The present invention provides the circulating heating and cooling system in the office building through improvement. Compared with the prior art, it has the following improvements and advantages:

(1) The hot water tank, cold water tank and several connecting pipes installed under the building are convenient for the transportation of medium water, and it is easy to lay in the building to achieve good heating and cooling effects and meet the needs of people's daily life. demand.

(2) The circulation heating and cooling method is adopted to heat and cool the building. Compared with the conventional heating and cooling system, this system is a closed circulation system, which is easier to maintain and lower in investment costs.

(3) The hot water tank is preheated by the electric furnace, so that the initial temperature of the hot water entering the indoor heating coil can be increased, and the heat of vaporization collected by the compressor can be used for heating and cooling, which improves the overall system Excellent heat exchange efficiency, saving energy waste.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be further explained:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the connection structure of the hot water tank and the cold water tank of the present invention.

Explanation of reference signs:

1 Hot water tank, 2 Cold water tank, 3 Refrigerator, 4 Main water supply pipe, 5 First hot water branch pipe, 6 Second hot water branch pipe, 7 No. 1 valve, 8 No. 2 valve, 9 No. 3 valve, 10 No. 4 valve, 11 heating pipe, 12 indoor heating coil, 13 refrigeration pipe, 14 first cold water branch pipe, 15 second cold water branch pipe, 16 No. 5 valve, 17 No. 6 valve, 18 No. 7 valve, 19 No. 8 valve, 20 condenser, 21 evaporator, 22 compressor, 23 electric furnace, 24 upper water pump, 25 cooling tower, 26 solar collector plate, 27 heat pipe, 28 input pipe, 29 output pipe, 30 return pipe, 31 Riser.

Detailed ways

The present invention will be described in detail below in conjunction with accompanying drawings 1 to 2, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The present invention provides a circulating heating and cooling system in an office building through improvement, as shown in Fig. 1-Fig. The hot water medium, the cold water tank 2 is used to store the cold water medium, a refrigerator 3 is connected between the hot water tank 1 and the cold water tank 2 through a pipeline, and the refrigerator 3 is used for the internal medium of the hot water tank 1 and the cold water tank 2 The conversion of temperature meets the needs of heating and cooling. The inside of the hot water tank 1 is connected to the main water supply pipe 4 through a water pump, and the top of the main water supply pipe 4 is respectively connected to the first hot water branch pipe 5 and the first hot water branch pipe 5 through a three-way valve. The second hot water branch pipe 6, one end of the first hot water branch pipe 5 and the second hot water branch pipe 6 close to the main upper water pipe 4 is respectively connected with a No. 7 valve and a No. 2 valve 8. The first hot water One end of the branch pipe 5 and the second hot water branch pipe 6 away from the main upper water pipe 4 is connected with a heat supply pipe 11, and the ends of the first hot water branch pipe 5 and the second hot water branch pipe 6 close to the heat supply pipe 11 are respectively No. 3 valve 9 and No. 4 valve 10 are connected. The inside of the cold water tank 2 is connected with a first cold water branch pipe 14 and a second cold water branch pipe 15 through a water pump. The first cold water branch pipe 14 and the second cold water branch pipe No. 15 valve 18 and No. 8 valve 19 are respectively connected to one end close to the cold water tank 2, and the refrigeration pipe 13 is connected to the end of the first cold water branch pipe 14 and the second cold water branch pipe 15 away from the cold water tank 2. One end of the cold water branch pipe 14 and the second cold water branch pipe 15 near the refrigeration pipe 13 are respectively connected with No. 5 valve 16 and No. 6 valve 17, and the indoor heating coil is connected between the heat supply pipe 11 and the refrigeration pipe 13 12. Installed inside the room of the building to realize the heating and cooling of the room inside the building and realize the exchange of heat.

Further, a condenser 20 is connected between the second hot water branch pipe 6 and the second cold water branch pipe 15 through a conduit, and the first hot water branch pipe 5 and the first cold water branch pipe 14 are connected through a conduit There is an evaporator 21, and a compressor 22 is connected between the evaporator 21 and the condenser 20 through a conduit to absorb heat when the evaporator evaporates and reduce energy loss.

Further, the indoor heating coils 12 are respectively installed in rooms on each floor of the building, and the outside of the indoor heating coils 12 is covered with a protective cover, which provides good protection for people's activities inside the building. The role of avoiding people's burns when heating.

Further, the conduits at both ends of the evaporator 21 are located below the No. 3 valve 9 and the No. 5 valve 16 respectively, and the conduits at both ends of the evaporator 21 are connected to the first hot water branch pipe 5 and the first cold water branch respectively. The pipe 14 is connected to ensure that the medium water can be smoothly transported during heating and cooling.

Further, the lower sides of the hot water tank 1 are respectively connected with an input pipe 28 and an output pipe 29, and the lower side of the hot water tank 1 is provided with an electric furnace 23 through the input pipe 28 and the output pipe 29, and the electric furnace 23 can The hot water in the hot water tank 1 is preheated to ensure the initial temperature during heating.

Further, the two sides above the refrigerator 3 are respectively provided with a return pipe 30 and a riser pipe 31, and one end of the riser pipe 31 close to the refrigerator 3 is connected to a lift pump 24, and the top of the return pipe 30 and the riser pipe 31 Both are connected to the cooling tower 25, and the medium water is pumped to the inside of the cooling tower 25, and the cooling tower 25 is used to realize rapid cooling of the medium water to achieve an excellent cooling effect.

Further, the hot water tank 1 is provided with a solar thermal collector plate 26 for heating the hot water tank 1, the solar thermal collector plate 26 is installed on the roof of the building, and the solar thermal collector plate 26 connects with the heat pipe 27 The hot water tank 1 is connected. When the system is used to heat the building, the heat collected by the heat collecting plate 26 is transported to the hot water tank 1 through the heat pipe 27 to realize the heating of the medium water inside the hot water tank 1 .

Further, when heating the interior of the building, No. 4 valve 10, No. 1 valve 7, No. 6 valve 17 and No. 7 valve 18 are all opened, and No. 2 valve 8, No. 3 valve 9, No. 5 valve 16 and No. No. 8 valves 19 are all closed to realize the circulation of hot water and achieve the effect of heating.

Further, when cooling the interior of the building, No. 2 valve 8, No. 3 valve 9, No. 5 valve 16 and No. 8 valve 19 are all opened, and No. 4 valve 10, No. 1 valve 7, No. 6 valve 17 and No. 7 valve are all opened. No. valve 18 is all closed, realizes the circulation of cold water, reaches the effect of refrigeration.

The working principle of the present invention is: when the system heats the interior of the building, the solar heat collector plate 26 collects the thermal energy of the solar energy to heat the water inside the hot water tank 1, and the operator turns the No. 4 valve 10, a No. valve 7, No. 6 valve 17 and No. 7 valve 18 are all open, No. 2 valve 8, No. The water is pumped to the main water pipe 4, No. 1 valve 7, evaporator 21, No. 6 valve 17, indoor heating pipe 12, No. 4 valve 10, condenser 20 and the inside of the hot water tank 1 to form a circulation and realize the heating effect. Purpose, when the system is cooling the interior of the building, No. 2 valve 8, No. 3 valve 9, No. 5 valve 16 and No. 8 valve 19 are all opened, and No. 4 valve 10, No. 1 valve 7, No. 6 valve 17 and No. The No. 7 valve 18 is all closed, and the water inside the cold water tank 2 is pumped to No. 8 valve 19, condenser 20, evaporator 21, No. 3 valve 9, indoor heating pipe 12, refrigeration pipe 13, and cold water tank through the water pump. 2. Form a cycle to achieve the purpose of cooling, wherein, when heating, the electric furnace 23 can be used to preheat the water inside the hot water tank 1, and the initial temperature of the water delivered to the indoor heating pipe 12 is increased .

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (1)

1. A circulating heating and cooling system in an office building, characterized in that it includes a hot water tank (1) and a cold water tank (2) installed in the deep well of the building, the hot water tank (1) and the cold water tank (2) A refrigerator (3) is connected through pipelines, the inside of the hot water tank (1) is connected to a main water supply pipe (4) through a water pump, and the top of the main water supply pipe (4) is respectively connected to a three-way valve. The first hot water branch pipe (5) and the second hot water branch pipe (6), the first hot water branch pipe (5) and the second hot water branch pipe (6) are close to one end of the main upper water pipe (4) The No. 1 valve (7) and the No. 2 valve (8) are respectively connected, and the ends of the first hot water branch pipe (5) and the second hot water branch pipe (6) away from the main upper water pipe (4) are connected with heating Pipe (11), the end of the first hot water branch pipe (5) and the second hot water branch pipe (6) close to the heating pipe (11) are respectively connected with No. 3 valve (9) and No. 4 valve (10) , the inside of the cold water tank (2) is connected with a first cold water branch pipe (14) and a second cold water branch pipe (15) through a water pump, and the first cold water branch pipe (14) and the second cold water branch pipe (15 ) near the end of the cold water tank (2) are respectively connected with No. 7 valve (18) and No. 8 valve (19), and the first cold water branch pipe (14) and the second cold water branch pipe (15) are far away from the cold water tank (2 ) is connected to a refrigeration pipe (13), and the ends of the first cold water branch pipe (14) and the second cold water branch pipe (15) close to the refrigeration pipe (13) are respectively connected to No. 5 valve (16) and No. 6 A valve (17), an indoor heating coil (12) is connected between the heating pipe (11) and the cooling pipe (13); A condenser (20) is connected between the second hot water branch pipe (6) and the second cold water branch pipe (15), and the first hot water branch pipe (5) and the first cold water branch pipe ( 14) An evaporator (21) is connected through a conduit, and a compressor (22) is connected between the evaporator (21) and the condenser (20) through a conduit; The indoor heating coils (12) are respectively installed in rooms on each floor of the building, and the exterior of the indoor heating coils (12) is covered with a protective cover; The conduits at both ends of the evaporator (21) are respectively located below the No. 3 valve (9) and the No. 5 valve (16), and the conduits at both ends of the evaporator (21) are respectively connected to the first hot water branch pipe ( 5) communicate with the first cold water branch pipe (14); The lower sides of the hot water tank (1) are respectively connected with input pipes (28) and output pipes (29), and the lower part of the hot water tank (1) is provided with Electric furnace (23); The two sides above the refrigerator (3) are respectively provided with a return pipe (30) and a riser pipe (31), and the end of the riser pipe (31) close to the refrigerator (3) is connected with a lift pump (24). The tops of the return pipe (30) and the riser (31) are connected to the cooling tower (25); The hot water tank (1) is provided with a solar thermal collector plate (26) for heating the hot water tank (1), the solar thermal collector plate (26) is installed on the roof of the building, and the solar thermal collector plate ( 26) Connect with the hot water tank (1) through the heat pipe (27); When heating the interior of the building, No. 4 valve (10), No. 1 valve (7), No. 6 valve (17) and No. 7 valve (18) are all open, No. 2 valve (8), No. 3 valve (9), No. 5 valve (16) and No. 8 valve (19) are all closed; When cooling the interior of the building, No. 2 valve (8), No. 3 valve (9), No. 5 valve (16) and No. 8 valve (19) are all open, No. 4 valve (10), No. 1 valve ( 7), No. 6 valve (17) and No. 7 valve (18) are all closed.