Multi-energy complementary triple co-generation system

Abstract

The utility model relates to the technical field of heat exchange equipment, in particular to a multi-energy complementary triple co-generation system which comprises an air energy unit, an energy storage distribution water tank, an air cooling system and a floor heating system, refrigeration and heating modes are respectively provided for air cooling and floor heating through the air energy unit, and the energy utilization rate is improved. Hot water can be provided all the year round, cold air refrigeration is provided through the air cooling system in summer, heating is provided through the floor heating system in winter, and the comfortable environment temperature all the year round is achieved. And a heat exchange coil in the energy storage distribution water tank realizes efficient heat exchange of hot water and cold water, so that a hot water using terminal can obtain hot water with required temperature according to requirements. The electric three-way valve on the liquid inlet pipeline accurately controls the flow and the temperature of the system. The system integrates multiple functions, the number of system devices is reduced, space is saved, and the complexity of initial investment and later maintenance is reduced. And the operation state is automatically adjusted according to external climate and internal requirements, energy consumption and operation cost are reduced, and economic benefits are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat supply heat exchange equipment technical field, concretely is a kind of multi-energy complementary triple supply system. BACKGROUND

[0002] At present, the existing air energy unit is used as heat source in heat pump system circulation, but the air energy unit heat pump can only realize heating mode and refrigeration mode, cannot realize hot water supply mode, if hot water supply mode needs to be realized, it must be necessary to additionally install a hot water supply device, user needs to install multiple systems to meet own use requirement, use cost is high, occupies a lot of space.

[0003] Even if switching in different modes, it is also impossible to achieve automatic seamless switching operation, and a large amount of manual operation and switching process is required, resulting in unstable system use, poor terminal experience, energy waste in the whole process, and huge operation cost in long-term use. SUMMARY

[0004] In view of the deficiencies of the prior art, to solve the problems raised in the background art, the technical problem to be solved by the utility model is to provide a multi-energy complementary triple supply system which integrates hot water supply function, does not need additional equipment investment, and realizes efficient use of energy through intelligent control.

[0005] The technical problem to be solved by the utility model is solved by the following technical scheme, a multi-energy complementary triple supply system, comprising an air energy unit, an energy storage and distribution water tank, an air cooling system and a floor heating system, the energy storage and distribution water tank is provided with a heat exchange coil, one end of the heat exchange coil is connected with a cold water supply system, the other end of the heat exchange coil is connected with a hot water terminal, the energy storage and distribution water tank is provided with an inlet, a return port and a water supplement port, an inlet pipe is arranged between the air energy unit and the inlet of the energy storage and distribution water tank, an electric three-way valve is arranged on the inlet pipe, a first valve port of the electric three-way valve is connected with the air energy unit, a second valve port of the electric three-way valve is connected with the inlet of the energy storage and distribution water tank, the first valve port and the second valve port of the electric three-way valve are connected to form a second passage, the floor heating system and the air cooling system are connected with a third valve port of the electric three-way valve in parallel, a return pipe is arranged between the air energy unit and the return port of the energy storage and distribution water tank, and the water supplement port of the energy storage and distribution water tank is connected with the cold water supply system through a water supplement pipe.

[0006] The system provides refrigeration and heating modes for air cooling and floor heating through the air energy unit, improves the energy utilization efficiency. Hot water can be provided throughout the year, cold air is provided through the air cooling system in summer, heating is provided through the floor heating system in winter, and comfortable environmental temperature is realized throughout the year. The heat exchange coil in the energy storage and distribution water tank realizes efficient heat exchange of hot water and cold water, ensures that the hot water terminal can obtain hot water with the required temperature according to the demand, and enhances the comfort of users.

[0007] The electric three-way valve on the liquid inlet pipeline realizes accurate control of the system flow and temperature, makes the heat allocation between different systems more flexible, and effectively copes with different climate conditions and user demands.

[0008] The system integrates multiple functions, reduces the number of system devices, saves space, and reduces the complexity of initial investment and later maintenance.

[0009] As a further scheme of the utility model, the floor heating system comprises a floor heating coil pipe, a heat supply main pipe is arranged between the floor heating coil pipe inlet and the third valve port of the electric three-way valve, a heat supply main valve is arranged on the heat supply main pipe, a floor heating backflow main pipe is arranged at the floor heating coil pipe outlet, the floor heating backflow main pipe is connected with the liquid inlet pipeline between the second valve port of the electric three-way valve and the liquid inlet of the energy storage distribution water tank, the first valve port and the second valve port of the electric three-way valve are opened to form a first passage, and a backflow main valve is arranged on the floor heating backflow main pipe.

[0010] The heat supply main valve and the backflow main valve are arranged, heat supply and backflow of the floor heating coil pipe can be accurately controlled, heat distribution is optimized, sufficient heat can be obtained in each area, and overall heat supply efficiency is improved.

[0011] As a further scheme of the utility model, the air cooling system comprises a fan coil pipe, a fan coil pipe liquid inlet pipe is arranged at one end of the fan coil pipe, a fan coil liquid inlet valve is arranged on the fan coil pipe liquid inlet pipe, the fan coil pipe liquid inlet pipe is connected with the heat supply main pipe on the inlet side of the heat supply main valve;

[0012] A fan coil pipe liquid return pipe is arranged at the other end of the fan coil pipe, a fan coil liquid outlet valve is arranged on the fan coil pipe liquid return pipe, and the fan coil pipe liquid return pipe is connected with the floor heating backflow main pipe on the outlet side of the backflow main valve.

[0013] The fan coil pipe can realize good water flow circulation through the adjustment of the liquid inlet valve and the liquid outlet valve, heat exchange efficiency is enhanced, the fan coil pipe liquid inlet valve and the fan coil liquid outlet valve are arranged, water supply and backwater flow of the fan coil pipe are flexibly adjusted according to actual demands, the system can adapt to different load changes, and a comfortable indoor environment can be maintained.

[0014] As a further scheme of the utility model, the liquid return pipeline is provided with an inner extension pipe at the liquid return port of the energy storage distribution water tank, the inner extension pipe extends into the energy storage distribution water tank, the inner extension length accounts for 1 / 3-1 / 2 of the total height of the energy storage distribution water tank, and a circulating pump is arranged on the liquid return pipeline outside the energy storage distribution tank. The circulating pump drives the water in the energy storage distribution water tank to circulate between the energy storage distribution water tank and the air energy unit. The inner extension pipe avoids that the deposits deposited at the bottom of the energy storage distribution water tank are agitated and transported to the air energy unit for circulation of cleaner water.

[0015] As a further scheme of the utility model, the energy storage distribution water tank body is further provided with a first energy supply port and a second energy supply port, a solar energy system for supplying heat to the energy storage distribution water tank is connected between the first energy supply port and the second energy supply port, the energy storage distribution water tank body is further provided with a third energy supply port and a fourth energy supply port, and a gas wall-hanging stove for supplying heat to the energy storage distribution water tank is connected between the third energy supply port and the fourth energy supply port. According to actual conditions, a corresponding heat source is selected for supply, seamless switching of the system is realized, and normal operation of the system is not affected.

[0016] As a further scheme of the utility model, the cold water supply system comprises a cold water supply source and a cold water supply pipeline, and a cold water supply valve is arranged on the cold water supply pipeline.

[0017] Compared with the prior art, the utility model has the beneficial effects that: the system comprises an air energy unit, an energy storage distribution water tank, a wind cooling system and a floor heating system, the energy storage distribution water tank is internally provided with a heat exchange coil, a liquid inlet pipeline is arranged between the air energy unit and the liquid inlet port of the energy storage distribution water tank, an electric three-way valve is arranged on the liquid inlet pipeline, and the floor heating system and the wind cooling system are connected with the third valve port of the electric three-way valve in parallel. The system provides refrigeration and heating modes for the wind cooling and the floor heating through the air energy unit, thereby improving the energy utilization efficiency. Hot water can be provided throughout the year, cold air refrigeration is provided through the wind cooling system in summer, and heating is provided through the floor heating system in winter, so that comfortable ambient temperature is realized throughout the year. The heat exchange coil in the energy storage distribution water tank realizes efficient heat exchange of hot water and cold water, so that the hot water terminal can obtain hot water with the required temperature according to the requirement, and the comfort of users is enhanced. The electric three-way valve on the liquid inlet pipeline realizes accurate control of the system flow and temperature, so that the heat distribution between different systems is more flexible. The system integrates multiple functions, reduces the number of system devices, saves space, and reduces the complexity of initial investment and later maintenance. The operation state is automatically adjusted according to the external climate and internal requirement, thereby reducing energy consumption and operation cost and improving economic benefit. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model.

[0019] In the figure: 1-air energy unit, 101-liquid return pipeline, 102-liquid inlet pipeline, 121-inner extension pipe, 2-hot water terminal, 3-cold water supply system, 301-cold water supply source, 302-cold water supply pipeline, 321-cold water supply valve, 4-solar energy system, 5-gas wall-hanging stove, 6-heat storage distribution water tank, 601-first energy supply port, 602-second energy supply port, 603-water supplement port, 631-water supplement pipeline, 604-liquid return port, 605-liquid inlet port, 7-heat exchange coil, 8-air cooling system, 801-fan coil liquid inlet pipe, 811-fan coil liquid inlet valve, 802-fan coil liquid return pipe, 821-fan coil liquid outlet valve, 803-fan coil, 9-floor heating system, 901-heat supply main pipe, 911-heat supply main valve, 902-floor heating return main pipe, 921-return main valve, 903-floor heating coil, 10-circulating pump, 11-electric three-way valve. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below by examples and in conjunction with the drawings. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0021] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. Unless otherwise specified, "connection" and "coupling" in this application include direct and indirect connection (coupling). In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model to a particular orientation, configuration and operation.

[0022] In the utility model, unless otherwise specified and limited, the first feature is "on" or "under" the second feature, which means that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature means that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0023] Example 1

[0024] As shown in the accompanying drawings Figure 1 A multi-energy complementary tri-generation system, comprising an air energy unit 1, an energy storage and distribution water tank 6, a wind cooling system 8 and a floor heating system 9. The energy storage and distribution water tank is provided with a heat exchange coil 7. One end of the heat exchange coil is connected to a cold water supply system 3, which comprises a cold water supply source 301 and a cold water supply pipeline 302. A cold water supply valve 321 is arranged on the cold water supply pipeline. The other end of the heat exchange coil is connected to a hot water terminal 2. The end of the heat exchange coil close to the cold water supply system is provided with a first stop valve. When the hot water terminal needs hot water supply, the first stop valve and the cold water supply valve 321 are opened simultaneously to inject cold water into the heat exchange coil.

[0025] The energy storage and distribution water tank 6 is provided with an inlet 605, an outlet 604 and a water supplement port 603. An inlet pipeline 102 is arranged between the air energy unit and the inlet of the energy storage and distribution water tank. An inlet stop valve is arranged on the inlet pipeline. An electric three-way valve 11 is arranged on the inlet pipeline. The first valve port of the electric three-way valve is connected to the air energy unit. The second valve port of the electric three-way valve is connected to the inlet of the energy storage and distribution water tank. The first valve port and the second valve port of the electric three-way valve are connected to form a second passage.

[0026] After the second passage is opened, the air energy unit 1 delivers hot water along the inlet pipeline to the energy storage and distribution water tank. The water in the energy storage and distribution water tank is heated and exchanges heat with the cold water in the heat exchange coil. The water temperature in the heat exchange coil rises to 55°. The side of the heat exchange coil close to the hot water terminal is provided with a second stop valve. When the hot water terminal needs hot water supply, the second stop valve is opened simultaneously to supply hot water to the hot water terminal.

[0027] An outlet pipeline 101 is arranged between the air energy unit and the outlet of the energy storage and distribution water tank. An inner extension pipe 121 is arranged on the outlet pipeline at the outlet of the energy storage and distribution water tank. The inner extension pipe extends into the energy storage and distribution water tank. The extension length accounts for 1 / 3 of the total height of the energy storage and distribution water tank. A circulating pump 10 is arranged on the outlet pipeline outside the energy storage and distribution tank. The hot water in the energy storage and distribution water tank is cooled by heat exchange. The circulating pump 10 is started to drive the water in the energy storage and distribution water tank to flow back to the air energy unit for circulation between the energy storage and distribution water tank 6 and the air energy unit 1. When the water in the energy storage and distribution water tank flows back, it flows into the outlet pipeline along the top end of the inner extension pipe. The sediment deposited at the bottom of the energy storage and distribution water tank will not be stirred, and cleaner hot water will be delivered to the air energy unit.

[0028] The water supplement port of the energy storage and distribution water tank 6 is connected to the cold water supply system through a water supplement pipeline 631. A water supplement valve is arranged on the water supplement pipeline 631. When the water in the energy storage and distribution water tank is insufficient, the water supplement valve is opened to supplement the cold water in the cold water supply source into the energy storage and distribution water tank.

[0029] The floor heating system 9 and the wind cooling system 8 are connected to the third valve port of the electric three-way valve in parallel.

[0030] In winter, the floor heating system 9 includes a floor heating coil 903, a heat supply main pipe 901 between the floor heating coil inlet and the third valve port of the electric three-way valve, a heat supply main valve 911 on the heat supply main pipe, a floor heating return main pipe at the floor heating coil outlet, and a liquid inlet pipe between the floor heating return main pipe and the second valve port of the electric three-way valve and the liquid inlet of the energy storage and distribution water tank.

[0031] The first passage is opened, the heat supply main valve 911 and the return main valve 921 are opened, the air energy unit supplies hot water to the floor heating coil 903, the floor heating coil releases heat energy to the heating space, and the cold water after releasing heat energy enters the energy storage and distribution water tank for heat supply.

[0032] In summer, the indoor temperature is high and refrigeration is needed, the air cooling system 8 includes a fan coil 803, a fan coil liquid inlet pipe 801 at one end of the fan coil, a fan coil liquid inlet valve 811 on the fan coil liquid inlet pipe, and the fan coil liquid inlet pipe is connected with the heat supply main pipe on the inlet side of the heat supply main valve;

[0033] The fan coil liquid inlet pipe is connected with the heat supply main pipe on the inlet side of the heat supply main valve;

[0034] Embodiment 2

[0035] The multi-energy complementary triple supply system includes a heating mode, a refrigeration mode, and a hot water mode;

[0036] The heating mode: the first passage of the electric three-way valve 11 is opened, the heat supply main valve 911 and the return main valve 921 are opened, the air energy unit supplies heat energy for the floor heating coil to heat, and at the same time, the fan coil liquid inlet valve 811 and the fan coil liquid outlet valve 821 are closed, and the fan coil 803 is temporarily stopped working;

[0037] After the floor heating coil 903 is heated, the cold water after the hot water is cooled is collected into the liquid inlet pipe 102 along the floor heating return main pipe 902 and returns to the energy storage and distribution water tank 6 to form low-temperature hot water;

[0038] The cold water supply valve 321 is opened, and the low-temperature hot water is heated by the cold water in the heat exchange coil 7, and the cold water in the heat exchange coil is heated to supply hot water to the hot water terminal 2.

[0039] The heating mode recirculates the heat energy after the heat exchange of the floor heating coil 903 into the energy storage and distribution water tank 6 under the condition of meeting the heat supply of the floor heating coil, and the heat energy is transmitted to the cold water in the heat exchange coil again, so that the heat energy is utilized again.

[0040] The second heating mode: the first passage of the electric three-way valve 11 is opened, the heating total valve 911 and the return total valve 921 are closed, the air-cooled system 8 is started, and the air-cooled system 8 is started.

[0041] After the air-cooled system 8 is started, the low-temperature water is returned to the energy storage and distribution water tank 6 along the liquid inlet pipeline 102, and the low-temperature water is returned to the energy storage and distribution water tank 6 to form low-temperature hot water.

[0042] The cold water supply valve 321 is opened, and the low-temperature hot water is heated by the cold water in the heat exchange coil 7, and the cold water in the heat exchange coil is heated to supply hot water to the hot water terminal 2.

[0043] The heating mode meets the air-cooled system 8, and the heat energy of the air-cooled system 8 is recycled into the energy storage and distribution water tank 6, and the heat energy is recycled into the cold water in the heat exchange coil to make the heat energy be used again.

[0044] Example 3

[0045] The refrigeration mode: the first passage of the electric three-way valve is opened, the heating total valve 911 and the return total valve 921 are closed, the floor heating coil 903 is stopped, the air-cooled system 8 is started, and the air-cooled system 8 is started.

[0046] After the air-cooled system 8 is started, the low-temperature water is returned to the energy storage and distribution water tank 6 along the liquid inlet pipeline, and the cold water supply valve 321 is closed, and the water in the energy storage and distribution water tank is returned to the air-cooled system 1 to continue circulation, and the indoor refrigeration effect is ensured.

[0047] Example 4

[0048] The hot water mode: the second passage of the electric three-way valve is opened, the air-cooled system 1 supplies heat energy to the energy storage and distribution water tank, the cold water supply valve 321 is opened, the hot water in the energy storage and distribution water tank is heated by the heat exchange coil, and the hot water in the heat exchange coil 7 is supplied to the hot water terminal.

[0049] Example 5

[0050] The energy storage and distribution water tank 6 is further provided with a first energy supply port 601 and a second energy supply port 602, and a solar energy system 4 for supplying heat to the energy storage and distribution water tank is connected between the first energy supply port and the second energy supply port.

[0051] When the weather is too cold in winter, the air energy unit 1 cannot guarantee heating, if the weather is good, the solar energy system 4 is used to heat the energy storage distribution water tank, the water in the energy storage distribution water tank is heated, and the heat exchange coil is used to heat the water terminal.

[0052] Embodiment 6

[0053] When the air energy unit 1 and the solar energy system 4 cannot heat, the gas wall-hanging stove is used for heating, the heat is supplied to the energy storage distribution water tank 6, the water in the energy storage distribution water tank is heated, the heat exchange coil 7 is used to heat the water terminal, and the continuous supply of system heat energy is guaranteed.

[0054] The whole heat source is automatically switched according to the actual situation to meet the energy supply demand.

[0055] In the description of the present application, the terms "connection", "installation", "fixation", "setting" and the like are understood in a broad sense, for example, "connection" is fixed connection or indirect through intermediate components without affecting the relationship between components and technical effects, it is also integrated connection or partial connection, as the case for the person skilled in the art, the specific meaning of the above terms in the present application or application can be understood according to the specific situation. The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art in the technical range disclosed by the present application, according to the technical scheme and the application concept of the present application, equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A multi-energy complementary trigeneration system, characterized in that: The air energy unit (1), the energy storage distribution water tank (6), the air cooling system (8) and the floor heating system (9) are arranged, the energy storage distribution water tank is internally provided with a heat exchange coil (7), one end of the heat exchange coil is connected with a cold water supply system (3), the other end of the heat exchange coil is connected with a hot water terminal (2), the energy storage distribution water tank is provided with an inlet (605), a return (604) and a water supplement port (603), the air energy unit and the inlet of the energy storage distribution water tank are provided with an inlet pipeline (102), the inlet pipeline is provided with an electric three-way valve (11), the first valve port of the electric three-way valve is connected with the air energy unit (1), the second valve port of the electric three-way valve is connected with the inlet of the energy storage distribution water tank, the first valve port and the second valve port of the electric three-way valve are connected to form a second passage, the floor heating system (9) and the air cooling system (8) are connected with the third valve port of the electric three-way valve in parallel, the air energy unit and the return of the energy storage distribution water tank are provided with a return pipeline (101), and the water supplement port of the energy storage distribution water tank is connected with the cold water supply system through a water supplement pipeline (631).

2. A polygeneration complementary trigeneration system according to claim 1, characterized in that: The floor heating system (9) comprises a floor heating coil (903), the inlet of the floor heating coil is provided with a heat supply main pipe (901) between the third valve port of the electric three-way valve, the heat supply main pipe is provided with a heat supply main valve (911), the outlet of the floor heating coil is provided with a floor heating return main pipe (902), the floor heating return main pipe is connected with the inlet pipeline between the second valve port of the electric three-way valve and the inlet of the energy storage distribution water tank, the first valve port and the second valve port of the electric three-way valve are opened to form a first passage, and the floor heating return main pipe (902) is provided with a return main valve (921).

3. A polygeneration complementary trigeneration system according to claim 2, characterized in that: The air cooling system (8) comprises a fan coil (803), one end of the fan coil is provided with a fan coil inlet pipe (801), the fan coil inlet pipe is provided with a fan coil inlet valve (811), and the fan coil inlet pipe is connected with the heat supply main pipe on the inlet side of the heat supply main valve; The other end of the fan coil (803) is provided with a fan coil return pipe (802), the fan coil return pipe is provided with a fan coil return valve (821), and the fan coil return pipe is connected with the floor heating return main pipe on the outlet side of the return main valve.

4. A polygeneration complementary trigeneration system according to claim 1, characterized in that: The return pipeline (101) is provided with an inner extension pipe (121) at the return of the energy storage distribution water tank, the inner extension pipe extends into the energy storage distribution water tank, the inner extension length accounts for 1 / 3-1 / 2 of the total height of the energy storage distribution water tank, and the return pipeline outside the energy storage distribution tank is provided with a circulating pump (10).

5. A polygeneration complementary trigeneration system according to claim 1, characterized in that: The energy storage distribution water tank (6) is further provided with a first energy supply port (601) and a second energy supply port (602), the first energy supply port and the second energy supply port are connected with a solar energy system (4) for supplying heat to the energy storage distribution water tank, the energy storage distribution water tank (6) is further provided with a third energy supply port and a fourth energy supply port, and the third energy supply port and the fourth energy supply port are connected with a gas wall-hanging stove (5) for supplying heat to the energy storage distribution water tank.

6. A polygeneration complementary trigeneration system according to claim 1, characterized in that: The cold water supply system (3) comprises a cold water supply source (301) and a cold water supply pipeline (302), and the cold water supply pipeline is provided with a cold water supply valve (321).

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