CN204187888U - Cogeneration cooling heating system - Google Patents

Abstract

The utility model relates to cogeneration cooling heating system, comprise: the cogeneration system with flue gas heat-exchange unit (1), this flue gas heat-exchange unit (1) has the heat exchanger channels flow through for the heat transferring medium absorbed heat from flue gas, also comprise: heat-accumulator tank (3), the first heat exchanger tube (31) be located in this heat-accumulator tank, this first heat exchanger tube (31) is communicated with the first heating circuit that to be formed with described first heat exchanger tube (31) be fire end with this heat exchanger channels; First pipeline (101) and have heat source side heat exchanger (51) and use side heat exchanger (53) refrigerating plant (5), this heat source side heat exchanger (51) with heat transferring medium heat exchange mode and described first pipeline (101) heat exchange in the first pipeline (101), wherein, described first pipeline (101) is communicated with the second heating circuit that to be formed with described first heat exchanger tube (31) be fire end with the first heat exchanger tube (31).

Description

Cogeneration system of cooling, heating and power

technical field

The utility model relates to a combined cooling, heating and power generation system.

Background technique

In households, cogeneration devices use natural gas as fuel to drive generators to generate most of the electricity required by households. The exhaust heat from the engine enters the domestic hot water system to provide domestic hot water and hot water for heating. The main purpose is to replace existing domestic water heaters with combined heat and power plants. Generally, cogeneration devices are not large enough to meet the heating needs of a family throughout the heating season, so boilers are also needed to meet the heating needs of peak loads. The whole home thermoelectric system is large, the installation volume is large and the installation is complicated.

In the home, the household air conditioner uses the mains power to drive the compressor, compresses the refrigerant, passes through a complete refrigeration cycle, and cools the room through the circulating fan in the evaporator.

The cooling, heating and power are basically independent. When cooling, only the household air conditioner is running, and when heating, only the household cogeneration device and peak boiler are running.

Household energy is basically natural gas and electricity, with little use of renewable energy.

Utility model content

Compared with the related technical problems of the prior art, the purpose of this utility model is to provide a cooling, heating and power cogeneration system, which can not only generate heat and electricity, but also store heat.

In order to achieve the above object, the utility model provides a cogeneration system of cooling, heating and power on the one hand, which includes: a cogeneration device with a flue gas heat exchanger, and the flue gas heat exchanger has a heat absorber for absorbing heat from the flue gas The heat exchange channel through which the heat exchange medium flows also includes: a heat storage tank, and a first heat exchange tube arranged in the heat storage tank, and the first heat exchange tube communicates with the heat exchange channel to form the first heat exchange tube. The heat pipe is the first heating circuit at the heating end; the first pipeline, and a refrigeration device with a heat source side heat exchanger and a use side heat exchanger, and the heat source side heat exchanger exchanges heat with the heat exchange medium in the first pipeline heat exchange with the first pipeline, wherein the first pipeline communicates with the first heat exchange tube to form a second heating circuit with the first heat exchange tube as a heating end.

Preferably, the cogeneration system of cooling, heating and power further includes a third pipeline, and the use-side heat exchanger exchanges heat with the third pipeline in the form of heat exchange with the heat exchange medium in the third pipeline, and the The inlet of the third pipeline is selectively connected to or disconnected from the return water pipeline, and the outlet of the third pipeline is selectively connected to or disconnected from the first water supply pipeline.

Preferably, a second heat exchange tube is provided in the heat storage tank, the inlet of the second heat exchange tube is selectively connected to or disconnected from the return water pipeline, and the outlet of the second heat exchange tube is connected to The first water supply pipeline is selectively connected or disconnected.

Preferably, the inlet of the first pipeline is selectively connected to or disconnected from the outlet of the first heat exchange tube; the outlet of the first pipeline is selectively connected to the inlet of the first heat exchange tube connected or disconnected; the inlet of the heat exchange channel is selectively connected or disconnected with the outlet of the first heat exchange tube; the outlet of the heat exchange channel is selectively connected to the inlet of the first heat exchange tube connected or disconnected.

Preferably, the combined cooling, heating and power system further includes: a radiator, and a fourth pipeline, the radiator exchanges heat with the fourth pipeline in a manner of exchanging heat with the heat exchange medium in the fourth pipeline, One of the two ports of the fourth pipeline is selectively connected to or disconnected from the inlet of the first pipeline, and the other port is selectively connected to or disconnected from the outlet of the first pipeline.

Preferably, the combined cooling, heating and power generation system further includes: a seventh pipeline, ports at both ends of which are respectively connected to the inlet and outlet of the first heat exchange tube in one-to-one correspondence; and the seventh pipeline has The pipe section where the heat exchange medium absorbs heat from the photothermal device. In other words, the photothermal device exchanges heat with the seventh pipeline by releasing heat to the heat exchange medium in the seventh pipeline. Preferably, the generator in the cogeneration device is electrically connected to the power input terminal of the compressor in the refrigeration device through the grid-connected module, and the grid-connected module also has a power output terminal for electrically connecting with the photovoltaic device port. The port of the grid-connected module can be electrically connected to a photovoltaic device (such as a solar generator) through another grid-connected module, so that both the photovoltaic device and the generator can run in parallel with the mains network.

Preferably, the refrigerating device is a heat pump, the heat source side heat exchanger is a condenser for releasing heat during cooling, and the use side heat exchanger is an evaporator for absorbing heat during cooling.

Preferably, the engine in the cogeneration device is a water-cooled engine,

Alternatively, the outlet of the first heat exchange tube, the cylinder liner of the water-cooled engine, the inlet of the heat exchange channel, the outlet of the heat exchange channel, and the inlet of the first heat exchange tube are sequentially connected in series to form the a first heating circuit;

Alternatively, the outlet of the first heat exchange tube is divided into two branches that communicate with the inlet of the heat exchange channel and the water inlet of the cylinder liner of the water-cooled engine in one-to-one correspondence, and the cylinder liner of the water-cooled engine The water outlet of the water outlet and the outlet of the heat exchange channel are respectively communicated with the inlet of the first heat exchange tube, thereby forming the first heating circuit.

Preferably, the cogeneration system of cooling, heating and power further includes: a cold storage tank and a third pipeline, wherein the use-side heat exchanger exchanges heat with the heat exchange medium in the third pipeline For heat exchange, the inlet and outlet of the third pipeline are respectively connected with the cold storage tank to form a circuit; and the fifth pipeline and the sixth pipeline, the fifth pipeline is connected between the cold storage tank and the first Between the water supply pipelines, the sixth pipeline is connected between the cold storage tank and the return water pipeline, and the fifth and sixth pipelines are respectively provided with electric valves or electromagnetic valves that are selectively on and off .

Preferably, compared with the tank bottom of the cold storage tank, the outlet of the third pipeline is lower than the inlet of the third pipeline, and based on the tank bottom of the cold storage tank, the fifth The communication position of the pipeline on the cold storage tank is lower than the communication position of the sixth pipeline on the cold storage tank.

Preferably, the combined cooling, heating and power system further includes: a power storage module, the generator, the power storage module, and the grid connection module in the cogeneration device are electrically connected in sequence; the power storage module also has a function for connecting with the photovoltaic device The port to which the power output terminal is electrically connected; wherein, the power storage module supplies power to the compressor in the refrigeration device through the grid-connected module.

Preferably, the engine is an internal combustion engine, and there is only one flue gas heat exchanger in the cogeneration system.

Another aspect provides a combined cooling, heating and power system, including: an engine, a generator driven by the engine; The flue gas heat absorption method in the pipe exchanges heat with the flue gas exhaust pipe; the heat storage tank, the first heat exchange tube installed in the heat storage tank, and the condenser exchanges heat with the first heat exchange tube The heat medium exchanges heat with the first heat exchange tube in a heat release manner.

Preferably, the cogeneration system of cooling, heating and power further includes: a cold storage tank and a third pipeline, wherein the evaporator exchanges heat with the third pipeline by exchanging heat with the heat exchange medium in the third pipeline , the inlet and outlet of the third pipeline are respectively connected with the cold storage tank to form a circuit; and the fifth pipeline and the sixth pipeline, the fifth pipeline is connected between the cold storage tank and the first water supply pipe The sixth pipeline communicates between the cold storage tank and the return water pipeline, and the fifth and sixth pipelines are respectively provided with electric valves or solenoid valves that are selectively turned on and off.

Preferably, a second heat exchange tube is provided in the heat storage tank, the inlet of the second heat exchange tube is selectively connected to or disconnected from the return water pipeline, and the outlet of the second heat exchange tube is connected to The first water supply pipeline is selectively connected or disconnected.

Preferably, the combined cooling, heating and power system further includes: a radiator, and a fourth pipeline, the radiator exchanges heat with the fourth pipeline in a manner of exchanging heat with the heat exchange medium in the fourth pipeline, One of the two ports of the fourth pipeline is selectively connected to or disconnected from the inlet of the first heat exchange tube, and the other port is selectively connected to or disconnected from the outlet of the first heat exchange tube .

Preferably, the cogeneration system of cooling, heating and power further includes: a power storage module, the generator, the power storage module, and the grid-connected module are electrically connected in sequence; The port for electrical connection of the output end; the seventh pipeline, the ports at both ends of which are respectively connected to the inlet and outlet of the first heat exchange tube in one-to-one correspondence, and the seventh pipeline has the function of exchanging heat through the seventh pipeline. The pipe section where the heat medium absorbs heat from the photothermal device. In other words, the photothermal device exchanges heat with the seventh pipeline by releasing heat to the heat exchange medium in the seventh pipeline. Preferably, the engine is an internal combustion engine.

Compared with the prior art, the utility model has the beneficial effects of:

(1) The utility model can not only generate heat and electricity, but also store heat. When a refrigeration device or a refrigerator is provided, the utility model can also be refrigerated by a refrigeration device or an absorption refrigerator. .

(2) Provide users with cold, heat, electricity and domestic hot water through the system. The input fuel is mainly natural gas, and at the same time, it can comprehensively utilize renewable energy such as electric energy and thermal energy generated by users' photovoltaic thermal energy.

(3) Energy storage components are used to store energy (cooling, heating, and electricity) in order to cope with peak loads.

(4) Compared with the traditional large-scale central power station, the home system can realize its value faster, reduce the demand pressure on the power grid, and reduce the loss of traditional power stations during transmission and distribution. In the event of a large urban power grid failure, the family can be guaranteed Life is not greatly affected.

Description of drawings

Fig. 1 is the structural block diagram of the first embodiment of the utility model cogeneration system of cooling, heating and power;

Fig. 2 is the structural block diagram of the second embodiment of the utility model cogeneration system of cooling, heating and power;

Fig. 3 is the structural block diagram of the third embodiment of the utility model cogeneration system of cooling, heating and power;

Fig. 4 is a structural block diagram of the fourth embodiment of the utility model combined cooling, heating and power generation system;

Fig. 5 is a structural block diagram of a fifth embodiment of the utility model of combined cooling, heating and power generation system.

Description of the list of reference numbers:

1 flue gas heat exchanger

15 Entrance of heat exchange channel

17 The outlet of the heat exchange channel

11 generator

13 engine

13” water inlet for engine cylinder liner

13” water outlet of engine cylinder liner

2 grid-connected module

21 port

3 heat storage tank

31 The first heat exchange tube

311 The outlet of the first heat exchange tube

313 The entrance of the first heat exchange tube

33 Second heat exchange tube

331 The entrance of the second heat exchange tube

333 The outlet of the second heat exchange tube

4 Radiator

5 Refrigeration device

51 Heat exchanger on heat source side

53 Use side heat exchanger

55 compressor

6 Photothermal device

7 cold storage tank

8 Optoelectronic devices

9 Power storage module

91 port

101 The first pipeline

101' The entrance of the first pipeline

101” Outlet of the first pipeline

102 Second pipeline

103 The third pipeline

103’ The entrance of the third pipeline

103” Outlet of the third pipe

104 The fourth pipeline

105 Fifth pipeline

106 The sixth pipeline

107 The seventh pipeline

108 flue gas exhaust pipe

201 Return water pipe

202 The first water supply pipeline

203 Second water supply pipeline

204 Water supply pipeline

301 Absorption Refrigerator

401 Fan

402 Drain valve

403, 404, 405, 406, selective on-off electric valve (or solenoid valve)

407, 408, 409, 410,

411, 412

413, 414 Electric air valves (in winter, valve 413 is closed and valve 414 is open; in summer

Season and vice versa)

415 Water pump

Detailed ways

Embodiments of the present utility model are described below with reference to the accompanying drawings.

First embodiment:

Referring to Fig. 1, the first embodiment of the combined cooling, heating and power generation system of the present invention is described. The combined cooling, heating and power generation system of the present invention includes: a combined heat and power generation device with a flue gas heat exchanger 1, and the flue gas heat exchanger 1 has a temperature of, for example, 350° C. The heat exchange channel through which the heat-absorbing heat exchange medium (such as antifreeze, water, etc.) in the flue gas) flows; the heat storage tank 3, the first heat exchange tube 31 arranged in the heat storage tank 3, the first The heat exchange tube 31 communicates with the heat exchange channel of the flue gas heat exchanger 1 to form a first heating circuit with the first heat exchange tube 31 as the heating end; the first pipeline 101, and the heat source side heat exchanger 51 and using The refrigeration device 5 of the side heat exchanger 53, the heat source side heat exchanger 51 exchanges heat with the first pipeline 101 by exchanging heat with the heat exchange medium in the first pipeline 101, wherein the first pipeline 101 exchanges heat with the first pipeline 101 The heat pipes 31 communicate to form a second heating circuit with the first heat exchange pipe 31 as a heating end. In this way, the utility model can not only refrigerate through the refrigerating device 5, but also extract the heat contained in the flue gas of the engine 13 and the heat released by the heat source side heat exchanger 51 during cooling and send it to the heat storage tank 3 for storage, thereby realizing heat storage .

[about heat storage]

The utility model provides a heat storage tank 3 and the aforementioned first heating circuit, so as to send the heat generated by the cogeneration device to the heat storage tank 3 for storage. The above-mentioned combined heat and power device is a device for generating heat and electricity, and belongs to a part of the combined cooling, heating and power system of the present invention. As shown in Figure 1, the cogeneration device includes: an engine 13, a generator 11, and a flue gas heat exchanger 1, wherein the engine 13 drives the generator 11 to generate electricity; The flue gas passing through the flue gas heat exchanger 1 absorbs heat, and the heat in the flue gas can be taken out to generate heat. As can be seen in FIG. 1 , the outlet 311 of the first heat exchange tube 31 is selectively communicated with or disconnected from the inlet 15 of the heat exchange channel of the flue gas heat exchanger 1 , while the heat exchange channel of the flue gas heat exchanger 1 The outlet 17 is selectively communicated with or disconnected from the inlet 312 of the first heat exchange tube 31 , thereby forming the first heating circuit. The heat exchange medium in the first heating circuit absorbs heat from the flue gas flowing through the flue gas heat exchanger 1, and then releases heat to the water in the heat storage tank 3 through the first heat exchange pipe 31, thereby realizing the 13 The heat extracted from the discharged flue gas is supplied to the thermal storage tank 3 for storage. That is, the heat generated by the cogeneration device is sent to the thermal storage tank 3 for storage. Taking the heat exchange medium flowing out of the first heat exchange tube 31 at 45°C as an example, when the first heating circuit is used, the heat exchange medium absorbs the heat of the flue gas and flows into the first heat exchange tube 31 at 50°C, and then the The heat exchange medium releases heat to the heat storage tank 3 through the first heat exchange pipe 31 , so that the heat of the flue gas is stored in the water in the heat storage tank 3 .

For the above-mentioned second heating circuit, it is used to extract the heat released by the heat source side heat exchanger 51 during cooling (the refrigeration device 5 ) and send it to the heat storage tank 3 for storage. Specifically, the first pipeline 101 has an inlet 101' and an outlet 101", the inlet 101' is selectively connected to or disconnected from the outlet 311 of the first heat exchange tube 31 in the heat storage tank 3, and the outlet 101" is connected to the first heat exchanger The outlet 311 of the heat pipe 31 is selectively connected or disconnected, so that the first pipeline 101 is connected with the first heat exchange pipe 31 to form a loop. At the same time, the positional relationship between the first pipeline 101 and the heat source side heat exchanger 51 is set such that the heat released by the heat source side heat exchanger 51 exchanges heat with the heat exchange medium in the first pipeline 101 . At this time, the circuit formed by connecting the first pipeline 101 and the first heat exchange tube 31 may be called a second heating circuit. When the refrigeration device is cooling, the heat exchange medium in the second heating circuit can absorb the heat released by the heat source side heat exchanger 51, and transfer the heat to the heat storage tank 3 with the first heat exchange tube 31 as the heating end for storage. stand up. Also taking the heat exchange medium flowing out of the first heat exchange tube 31 at 45°C as an example, when the second heating circuit is used, the heat exchange medium absorbs the heat released by the heat source side heat exchanger 51 (at this time, the refrigeration device is a refrigeration mode) at 50° C. and then flows into the first heat exchange tube 31 , so that the heat absorbed from the heat source side heat exchanger 51 is stored in the water in the heat storage tank 3 .

Both the above-mentioned first heating circuit and the second heating circuit store heat in the thermal storage tank 3 . When the water temperature in the heat storage tank 3 does not meet the predetermined value, the first heating circuit and/or the second heating circuit can be selected to supply heat.

Through the second water supply pipeline 203, hot water can be taken out from the thermal storage tank 3 to realize domestic hot water supply. Preferably, the second water supply pipeline 203 takes hot water from the top of the heat storage tank 3 . FIG. 1 also shows a water supply pipe 204 for supplementing water into the heat storage tank 3 , which is connected to the bottom of the heat storage tank 3 as shown in FIG. 1 .

[about heating]

In addition to utilizing the thermal storage tank 3 to provide domestic hot water supply, the hot water in the thermal storage tank 3 can also be used for heating. As shown in Figure 1, a second heat exchange tube 33 can be provided in the heat storage tank 3, the inlet 331 of the second heat exchange tube 33 is selectively communicated with or disconnected from the return water pipeline 201, and the outlet of the second heat exchange tube 33 333 is selectively connected to or disconnected from the first water supply pipeline 202 . With the help of the second heat exchange tube 33 , the heat is extracted from the heat storage tank 3 , thereby realizing hot water supply to the first water supply pipeline 202 , and correspondingly realizing heating. Take the return water pipeline 201 to provide 40°C water as an example, the 40°C water flows into the second heat exchange pipe 33 to absorb heat from the heat storage tank 3, and then flows out of the second heat exchange pipe 33 and enters the first In the water supply pipeline 202, the 45°C water releases heat (heating) while flowing from the first water supply pipeline 202 to the return water pipeline 201, and then flows back to the return water pipeline 201 at 40°C, thereby completing a heating cycle. Such continuous circulation, just constantly utilizes the thermal energy in the thermal storage tank 3 to realize heating.

When the refrigerating device heats up, the use-side heat exchanger 53 releases heat. At this time, the water from the return water pipeline 201, for example, at 40°C, absorbs heat from the use-side heat exchanger 53 through the third pipeline 103 and then becomes, for example, 45°C. , and then supply the first water supply pipeline 202 to realize the heat released by the use-side heat exchanger 53 for heating. This heating mode can be complementary to the aforementioned extraction of heat from the heat storage tank 3 for heating.

Continuing to refer to FIG. 1 , the combined cooling, heating and power generation system of the present invention can also use the heat dissipated from, for example, the engine case to provide heating. Specifically, as shown in FIG. 1 , the cogeneration system of cooling, heating and power also includes: a radiator 4 and a fourth pipeline 104, and the radiator 4 exchanges heat with the heat exchange medium in the fourth pipeline 104 with the fourth pipeline. Four pipelines 104 for heat exchange. One of the two ports of the fourth pipeline 104 is selectively connected to or disconnected from the inlet 101' of the first pipeline 101, and the other port of the fourth pipeline 104 is selectively connected to the outlet 101" of the first pipeline 101. The air valve 413 is closed, the air valve 414 is opened, and the hot air in the cabinet is discharged through the radiator 4, and the radiator 4 can take away the heat emitted by the engine cabinet, etc. The heat removed by the device 4 passes through the heat exchange medium in the fourth pipeline 104, the heat source side heat exchanger 51, the use side heat exchanger 53, and the heat exchange medium (such as water) in the third pipeline 103, so that the third The water in the pipeline 103 is raised from eg 40°C to 45°C and then supplied to the first water supply pipeline 202, so that the heat dissipated from eg the engine case can be used for heating.

In addition, when the refrigeration device is cooling, the heat released by the heat source side heat exchanger 51 can be taken away by the aforementioned second heating circuit and supplied to the heat storage tank 3 for storage, or can be dissipated after exchanging heat with the radiator 4 through the fourth pipeline 104 Lose. When the temperature of the water in the heat storage tank 3 meets the requirements, and it is neither necessary to extract heat from the flue gas nor to use the heat released by the heat source side heat exchanger 51 to supply heat to the heat storage tank 3, the first pipeline 101 can be made to It communicates with the fourth pipeline 104, so that after the heat exchange medium in the first pipeline 101 absorbs the heat released by it from the heat source side heat exchanger 51, it passes through the fourth pipeline 104 to the radiator 4 (Fig. The fan 401) provided by the radiator 4 releases heat, so that the excess heat released by the heat source side heat exchanger 51 is sent away in the form of hot air.

[About cooling]

When the refrigerating device is refrigerating, the heat exchanger 53 on the use side will absorb heat from the environment, that is, it will generate cold. In order to utilize the generated cold, as shown in FIG. 1 , the combined cooling, heating and power generation system of the present invention also includes a third pipeline 103 to extract the cold generated by the use-side heat exchanger 53 for use by users.

Specifically, as shown in FIG. 1, the inlet 103' of the third pipeline 103 is selectively communicated with or disconnected from the return pipeline 201, and the outlet 103" of the third pipeline 103 is selectively communicated with or disconnected from the first water supply pipeline 202. Disconnect. At the same time, the positional relationship between the third pipeline 103 and the use-side heat exchanger 53 is set to: make the use-side heat exchanger 53 exchange the heat exchange medium (for example, water) with the third pipeline 103 The way of heat is heat exchange with the third pipeline 103. In this way, when the refrigeration device is cooling, the use side heat exchanger 53 can absorb heat from the heat exchange medium (for example, water) in the third pipeline 103, that is, the use side The cold generated by the heat exchanger 53 is taken away by the heat exchange medium in the third pipeline 103 and then supplied to the first water supply pipeline 202 .

When the refrigerating device is cooling, taking the water entering the return water pipeline 201 as 12°C water as an example, the water at 12°C from the return water pipeline 201 is absorbed by the heat exchanger 53 on the use side through the third pipeline 103, thus becoming The water at 7°C flows to the first water supply pipeline 202, and then the water at 7°C sent by the first water supply pipeline 202 absorbs heat from the surrounding environment (for cooling) and then turns into water at 12°C and flows back into the return water pipeline 201, Thereby completing a cooling cycle. In this way, the cycle continues, and the cold generated by the use-side heat exchanger 53 is continuously taken out for use.

[Regarding electricity generated by photovoltaic devices]

The utility model also utilizes the electric energy produced by the photoelectric device 8 (such as a solar generator) to supply power for the electric cooling of the refrigeration device. That is, the combined cooling, heating and power generation system of the present invention also has a port for receiving the electric energy generated by the photoelectric device 8 .

As shown in Figure 1, the generator 11 in the cogeneration device is electrically connected to the power input end of the compressor 55 in the refrigeration device 5 through the grid-connected module 2. Port 21 for the connection. The port 21 is the port for receiving the electric energy generated by the optoelectronic device 8 . When it is necessary to receive the electric energy generated by the photoelectric device 8, as shown in Figure 1, the photoelectric device 8 can be electrically connected to the photoelectric device 8 through another grid-connected module 2', so that the photoelectric device 8 and the generator 11 can be connected to the mains The network runs in parallel. In this way, the electric energy generated by the photovoltaic device 8 can be provided to the compressor 55 in the refrigeration device after passing through the grid-connected module 2'. That is, the combined cooling, heating and power generation system of the present invention can use renewable electric energy.

The engine 13 in FIG. 1 may be an internal combustion engine, and the fuel used may be gas.

[About the thermal energy generated by the photothermal device]

The utility model can also store the heat energy generated by the photothermal device 6 (such as a solar heat collector) into the thermal storage tank 3 .

Referring to Fig. 1 , the combined cooling, heating and power generation system of the present invention also includes: a seventh pipeline 107, and the ports at both ends of the seventh pipeline 107 are connected to the inlet 313 and the outlet 311 of the first heat exchange tube 31 in a one-to-one correspondence. and the seventh pipeline 107 has a pipe section that absorbs heat from the photothermal device 6 through the heat exchange medium in the seventh pipeline 107, in other words, the photothermal device 6 releases heat to the heat exchange medium in the seventh pipeline 107 The way of heat is heat exchange with the seventh pipeline 107 . In this way, the seventh pipeline 107 and the first heat exchange tube 31 are connected to form a third heat supply circuit. Through the third heat supply circuit, the thermal energy generated by the photothermal device 6 is stored in the thermal storage tank 8 . For example, when the heat exchange medium in the third heat supply circuit is water, the water at 45°C can be converted into water at 50°C after absorbing heat from the photothermal device 6 and then flow back into the first heat exchange tube 31, and then the water at 45°C The heat pipe 31 supplies heat to the water in the heat storage tank 3 for the heating end to store heat.

When the utility model involves selective connection or disconnection, it can be realized by a stop valve. For example, electric valves (or solenoid valves) 403 , 404 , 405 , 406 , 407 , 408 , 409 , 410 , 411 , 412 are shown in FIG. 1 . FIG. 1 also shows the water pump 415 installed in the first heating circuit, the water pump 415 in the first pipeline 101 , and the water pump 415 in the return water pipeline 201 . Figure 1 shows two air inlet positions, two air exhaust positions, two fans 401, valve 413, valve 414, and a blowdown valve 402 installed at the bottom of the heat storage tank 3. It can also be seen from Figure 1 that, for example, the flue gas at 350°C passes through the flue gas heat exchanger 1 and then becomes, for example, 45°C flue gas and is discharged, that is, the "exhaust smoke" in Fig. Flue gas at 45°C. In the present invention, the first and second heat exchange tubes may preferably be coiled tubes.

For ease of understanding, part of the working process of the combined cooling, heating and power generation system of the present invention will be briefly described below. After the fuel enters the engine 13 (internal combustion engine is used as an example here) for chemical reaction, the generator 11 is driven to output 200-240V alternating current and 300-400°C high-temperature flue gas. The AC power is converted into 220V, 50Hz AC power after passing through the grid-connected module 2 and then merged into the user's home power network. After the high-temperature flue gas passes through the waste heat recovery module (here, flue gas heat exchanger 1 is taken as an example), the temperature drops to 80-85°C, and the waste heat of the flue gas passes through the antifreeze (the heat exchange medium in the first heating circuit, which can It is antifreeze, also can be water) the heat is exchanged and stored in the water of the heat storage tank through the first heat exchange pipe 31 of the heat storage tank 3 (the example of the first heat exchange pipe 31 here is a coil pipe). The temperature of the water in the heat storage tank 3 is controlled between 50°C and 55°C. When the temperature of the water at the bottom of the heat storage tank 3 is lower than 50°C, the water pump 415 (the water pump connected to the first heating circuit) is automatically started to start heat exchange , until the temperature of the bottom water in the heat storage tank 3 reaches 55°C. The first and second heat exchange tubes in the heat storage tank adopt a double-coil type, and one of the coils (that is, the first heat exchange tube 31) is used to heat the water in the heat storage tank 3, and the coil is connected to the flue gas for heat exchange. 1 and the heat source side heat exchanger 51 (when the refrigeration device is a heat pump, the heat source side heat exchanger 51 may be a water-water heat pump condenser), while retaining the interface connected to the photothermal device 6. The domestic hot water directly takes the water from the heat storage tank 3 to keep the temperature of the domestic hot water at about 50° C.; the heating water pump (the water pump 415 connected to the return pipeline 201 ) adjusts the start and stop of heat exchange according to the indoor temperature. The heat pump (an embodiment of the refrigerating device) adopts an electric cooling method, and is powered by the generator 11 after passing through the grid-connected inverter module (an embodiment of the grid-connected module 2 ). At the same time, an air-conditioning waste heat recovery device (that is, the aforementioned second heating circuit) is designed to recycle the heat generated during refrigeration (the second heating circuit sends the recovered heat to the heat storage tank 3 for storage), thereby improving the overall efficiency. Under extremely cold weather, recover the heat in the cabinet (such as the cabinet of the generator 13) to the evaporator (that is, the use-side heat exchanger 53 of the refrigeration device in Fig. 1; the use-side heat exchanger 53 plays a role in evaporation during heating. The heat recovered by the radiator 4 from the chassis is finally sent to the use-side heat exchanger 53 for release), improving the low-temperature heating efficiency of the heat pump, and the heat pump also functions as a peak heating device, making heating more reliable and safer.

In this embodiment, a preferred embodiment of the refrigeration device is a heat pump. For ease of understanding, the following uses a heat pump as an example to illustrate the state of some valves during refrigeration and heating of the refrigeration device of the present utility model:

During refrigeration: when the water tank temperature (the temperature of the water in the heat storage tank 3) T is lower than the heat recovery temperature of the heat pump, the valve 407 and the valve 403 are closed, the valve 410 and the valve 412 are closed, and the remaining water valves are opened. If the generator 11 is started, the water pump 415 (the water pump 415 in the first heating circuit) is started. When the water tank temperature T reaches the heat recovery temperature of the heat pump, valve 407 and valve 403 are opened, valve 404, valve 408, valve 410 and valve 412 are closed, and other water valves are opened.

During heating: when the water tank temperature T is lower than the heating temperature, the generator 11 is started, and the water pump 415 (the water pump 415 in the first heating circuit in FIG. 1 ) is started, and the valves 406 and 405 are opened. Valve 404 and valve 408 are closed. When the temperature of the water in the heat storage tank 3 rises slowly, the heat pump is turned on to replenish heat, and the valve 407 and the valve 403 are opened.

During cooling (when the return water pipeline 201 and the first water supply pipeline 202 are cooling): the valve 413 is opened and the valve 414 is closed (thereby the heat in the cabinet is not recovered, but the temperature of the air is used to enter the refrigerator to dissipate heat).

When heating (when the first water supply pipeline 202 and the return water pipeline 201 are heating): the valve 413 is opened and the valve 414 is closed to recover the heat in the cabinet.

When cooling, that is, when cooling needs to be supplied through the first water supply pipeline 202 (this is determined by the air-conditioning terminal system, that is, the instruction of the indoor temperature controller): valve 409 and valve 411 are opened, and valve 410 and valve 412 are closed .

When heating, that is, when heating is required through the first water supply pipeline 202 (this is determined by the air-conditioning terminal system, that is, the instruction of the indoor temperature controller): valve 409 and valve 411 are closed, and valve 410 and valve 412 are opened . If the power generation mode cannot meet the heating requirement, start the heat pump to supplement heat, and open the valve 409 and the valve 411.

Preferably, there is only one flue gas heat exchanger in the heat and power cogeneration device in the first embodiment of the present utility model, which directly condenses and exchanges heat.

The second pipeline 102 is also shown in Fig. 1. This pipeline section is a two-way flow, because during cooling, the condensation heat of the refrigerator can be recovered, and the heat of the flue gas heat exchanger of the generator can also be passed through the radiator during single power generation. Disperse into the air.

second embodiment

Referring to Fig. 2, the second embodiment of the combined cooling, heating and power generation system of the present invention is illustrated.

The difference with the first embodiment is: the engine 13 in the utility model adopts a water-cooled engine, so that the recovered heat is more, and in addition, the cylinder jacket water of the engine and the water of the flue gas heat exchanger are connected in series, saving a water pump (compared with the conventional one) According to engineering practice, one water pump for cylinder jacket water and one water pump for flue gas heat exchanger.), and the corresponding control system for controlling the cogeneration system of cooling, heating and power is also simpler. Specifically, in order to realize the series connection of the engine jacket water and the flue gas heat exchanger water, as shown in FIG. The inlet 15 of the heat exchange channel of the heat exchanger 1 , the outlet 17 of the heat exchange channel of the flue gas heat exchanger 1 , and the inlet 313 of the first heat exchange tube 31 are sequentially connected in series to form a first heating circuit.

Except for the above differences, the remaining parts of the second embodiment are the same as those of the first embodiment, and will not be repeated here.

third embodiment

Referring to Fig. 3, the third embodiment of the combined cooling, heating and power generation system of the present invention is described. The difference from the second embodiment is that the engine jacket water and the flue gas heat exchanger water are connected in parallel.

In order to realize the parallel connection of the engine jacket water and the flue gas heat exchanger water, as shown in FIG. The inlet 15 of the hot channel communicates with the water inlet 13' of the cylinder liner of the water-cooled engine, and the water outlet 13 "of the cylinder liner of the water-cooled engine and the outlet 17 of the heat exchange channel of the flue gas heat exchanger 1 are respectively connected to the heat storage tank 3 The inlet 313 of the first heat exchange pipe 31 is communicated to form a first heating circuit. Obviously, it can be understood that the heat exchange medium in the first heating circuit is water in the cylinder jacket of the water-cooled engine.

Except for the above differences, the remaining parts of the third embodiment are the same as those of the first and second embodiments, and will not be repeated here.

Fourth embodiment

Referring to Fig. 4, the fourth embodiment of the combined cooling, heating and power generation system of the present invention is described. The difference between the fourth embodiment and the third embodiment is that electricity storage and cold storage are added on the basis of heat storage (the heat storage tank 3 stores heat).

[about cold storage]

It can be seen from FIG. 4 that the combined cooling, heating and power generation system also includes: a cold storage tank 7 . Wherein the heat exchanger 53 on the side of use in the refrigeration device exchanges heat with the third pipeline 103 in the form of heat exchange with the heat exchange medium in the third pipeline 103, and the inlet 103' and the outlet 103" of the third pipeline 103 are respectively connected to the cold storage tank 7 are connected to form a circuit, and this circuit can send the cold provided by the side heat exchanger 53 into the cold storage tank 7 for storage when the refrigeration device is refrigerated.

It can also be seen from FIG. 4 that in order to utilize the cold stored in the cold storage tank 7 , the combined cooling, heating and power generation system further includes a fifth pipeline 105 and a sixth pipeline 106 . Among them, the fifth pipeline 105 communicates between the cold storage tank 7 and the first water supply pipeline 202, the sixth pipeline 106 communicates between the cold storage tank 7 and the return water pipeline 201, and the fifth pipeline 105 and the sixth pipeline The roads 106 are respectively provided with shut-off valves.

The cold storage and cold supply process is briefly described as follows: in the cooling mode of the refrigeration device, the water in the cold storage tank 7 releases heat to the heat exchanger 53 on the use side through the third pipeline 103, so that the water changes from 12°C to 7°C and then returns to The cold storage tank 7 realizes cold storage in the cold storage tank 7 . Since the water temperature at the bottom of the cold storage tank 7 is lower than that at the top, the water entering the third pipeline 103 is, for example, 12° C. Use side heat exchanger 53 to release heat). Obviously, it can be understood that the cold water of eg 7° C. in the cold storage tank 7 can be sent to the first water supply pipeline 202 through the fifth pipeline 105 to realize cooling. At the same time, the sixth pipeline 106 sends the water of eg 12° C. from the return water pipeline 201 into the cold storage tank 7 to continue cooling.

Since the water temperature at the bottom of the cold storage tank 7 is lower than the water temperature at the top of the cold storage tank 7, preferably, as shown in FIG. At the inlet 103' of the third pipeline 103; and taking the bottom of the cold storage tank 7 as a reference, the communication position of the fifth pipeline 105 on the cold storage tank 7 is lower than that of the sixth pipeline 106 on the cold storage tank 7 connected location.

In general, the third pipeline 103 cools the water in the cold storage tank 7, and the fifth pipeline 105 sends out the cooled water in the cold storage tank 7, and the cold water sent by the fifth pipeline 105 is transferred from the first water supply The pipeline 202 absorbs heat to 12° C. before flowing to the return pipeline 201 , and then sends it back to the cold storage tank 7 through the return pipeline 201 and the sixth pipeline 106 .

[About power storage]

Referring to FIG. 4 , the combined cooling, heating and power generation system of the present invention further includes: a power storage module 9 . The generator 11, the power storage module 9, and the grid-connected module 2 in the cogeneration device are electrically connected in sequence; generated electricity. The power storage module 9 supplies power to the compressor 55 in the refrigeration device 5 through the grid-connected module 2 .

Except for the above differences, other undescribed parts are the same as those of the third embodiment, and will not be repeated here.

fifth embodiment

Referring to Fig. 5, the fifth embodiment of the combined cooling, heating and power generation system of the present invention is described. The difference between the fifth embodiment and the fourth embodiment is that the refrigerating device 5 is an absorption refrigerating machine, thereby eliminating the flue gas heat exchanger 1 and reducing system components.

Specifically, referring to FIG. 5, the utility model provides a cogeneration system of cooling, heating and power, which includes: an engine 13, a generator 11 driven by the engine 13; And the absorption refrigerating machine 301 of evaporator (absorption heat during cooling, plays evaporation), and evaporator is with this flue gas exhaust pipe 108 heat exchange with this flue gas exhaust pipe 108 heat absorption mode from the flue gas exhaust pipe 108 of this engine; The heat tank 3 , the first heat exchange tube 31 arranged in the heat storage tank, and the condenser exchanges heat with the first heat exchange tube 31 by releasing heat to the heat exchange medium in the first heat exchange tube 31 . That is, the heat in the engine flue gas is sent to the heat storage tank 3 for storage after passing through the absorption refrigerating machine 301 and the heat exchange medium in the first heat exchange tube 31 .

The heat storage tank 3 is provided with a second heat exchange pipe 33, the inlet 331 of the second heat exchange pipe 33 is selectively communicated with or disconnected from the return water pipeline 201, and the outlet 333 of the second heat exchange pipe 33 is connected with the first water supply pipe. The path 202 is selectively connected or disconnected. With the help of the heat exchange medium in the second heat exchange pipe 33 , heat is extracted from the heat storage tank 3 , so as to realize hot water supply to the first water supply pipeline 202 and correspondingly realize heating. When the absorption refrigerating machine 301 is heating, for example, water at 40°C from the return water line 201 absorbs heat from the evaporator of the absorption refrigerating machine 301 through the third line 103 (it releases heat during heating and actually acts as a condensation effect) After heating, it is for example 45° C., and then supplied to the first water supply pipeline 202 to realize heating; the two kinds of heating can be complementary.

When the absorption refrigerating machine 301 is refrigerating, the water in the third pipeline 103, for example, at 12°C can release heat to the evaporator of the absorption refrigerating machine 301 (it absorbs heat during cooling, and actually plays the role of evaporating), and then becomes, for example, 7°C. °C to provide cold water to the first water supply pipeline 202 to realize cooling, that is, for example, water at 12 °C becomes water at 7 °C.

Referring to Fig. 5, the cogeneration system of cooling, heating and power also includes: a cold storage tank 7 and a third pipeline 103, wherein the evaporator of the absorption refrigerator 301 exchanges heat with the heat exchange medium in the third pipeline 103 and the third pipeline Road 103 heat exchange, the inlet 103 ' and outlet 103 " of the third pipeline 103 are respectively connected with the cold storage tank 7 to form a circuit; and the fifth pipeline 105 and the sixth pipeline 106, the fifth pipeline communicates with the cold storage tank 7 Between the first water supply pipeline 202, the sixth pipeline 106 communicates between the cold storage tank 7 and the return water pipeline 201, and the fifth pipeline and the sixth pipeline are respectively provided with stop valves. The third pipeline 103 and The cold storage tank 7 is connected to form a circuit for storing cold in the cold storage tank 7. At this time, as far as the cold storage and cold supply process is concerned, the difference between the fifth embodiment and the aforementioned fourth embodiment is that the refrigeration device 5 is replaced It becomes an absorption refrigerator 301, and the rest of the cold storage and cold supply processes are the same as those of the fourth embodiment, and will not be repeated here.

Referring to Fig. 5, the cogeneration system of cooling, heating and power also includes: a radiator 4, and a fourth pipeline 104, and the radiator 4 exchanges heat with the fourth pipeline 104 by exchanging heat with the heat exchange medium in the fourth pipeline 104. exchange. One of the two ports of the fourth pipeline 104 is selectively connected to or disconnected from the inlet 313 of the first heat exchange tube 31, and the other port of the fourth pipeline 104 is selectively connected to the outlet 311 of the first heat exchange tube 31. connected or disconnected. The heat of the engine such as the chassis is transferred to the radiator 4 , and then transferred to the heat storage tank 3 by the radiator 4 through the heat exchange medium in the fourth pipeline 104 .

Referring to FIG. 5 , the combined cooling, heating and power generation system further includes a power storage module 9 . The generator 11, the power storage module 9, and the grid-connected module 2 are electrically connected in sequence; The electric module 9 and the grid-connected module 2 operate in parallel with the mains power grid. Thus, the cogeneration system of cooling, heating and power utilizes the power storage module 9 to store the electricity generated by the generator 11 and the photovoltaic module 8 .

Referring to Fig. 5, the cogeneration system of cooling, heating and power also includes a seventh pipeline 107, the ports at both ends of which are connected to the inlet 313 and the outlet 311 of the first heat exchange tube 31 respectively in one-to-one correspondence, and the seventh pipeline 107 has a passage through The seventh pipeline 107 is a pipe section where the heat exchange medium absorbs heat from the photothermal device 6 , so that the heat generated by the photothermal device can be stored in the thermal storage tank 3 . In other words, the photothermal device 6 exchanges heat with the seventh pipeline 107 by releasing heat to the heat exchange medium in the seventh pipeline 107 .

Figure 5 shows shut-off valves 409, 410, 411, 412, and also shows a water pump 415 installed on the communication pipeline between the inlet 311 of the first heat exchange pipeline 31 and the absorption refrigerating machine 301, and the return The water pump 415 in the water pipeline 201.

During cooling (when the return water pipeline 201 and the first water supply pipeline 202 are cooling): the valve 413 is opened and the valve 414 is closed (thereby the heat in the cabinet is not recovered, but the temperature of the air is used to enter the refrigerator to dissipate heat). When heating (when the first water supply pipeline 202 and the return water pipeline 201 are heating): the valve 414 is opened and the valve 413 is closed (to recover the heat in the cabinet). When cooling is required, that is, when cooling needs to be supplied through the first water supply pipeline 202 (this is determined by the air-conditioning terminal system, that is, the instruction of the indoor temperature controller): valve 409 and valve 411 are opened, and valve 410 and valve 412 are closed . When heating is required, that is, when heating needs to be supplied through the first water supply pipeline 202 (this is determined by the air-conditioning terminal system, that is, the instruction of the indoor temperature controller): valve 409, valve 411 are closed, valve 410, valve 412 is turned on; if the power generation mode cannot meet the heating requirements, the absorption chiller 301 is started to replenish heat, and the valves 409 and 411 are opened.

Figure 5 shows two air inlet positions, two air exhaust positions, two fans 401, valve 413, valve 414, and a blowdown valve 402 installed at the bottom of the heat storage tank 3. It can also be seen from Fig. 5 that, for example, the flue gas at 350°C passes through the absorption refrigerator 301 and then becomes the flue gas at, for example, 45°C and is discharged, that is, the "exhaust smoke" in Fig. ℃ flue gas. In the present invention, the first and second heat exchange tubes may preferably be coiled tubes.

In all the above-mentioned embodiments of the utility model involving heat pumps, the heat storage tank is used for heating firstly, and the heat pump is used for heating when the heat supply of the heat storage tank is insufficient.

To sum up, the utility model cogeneration system of cooling, heating and power provides users with cold, heat, electricity and domestic hot water. The input fuel is mainly natural gas, and at the same time, it can comprehensively utilize renewable energy such as electric energy and thermal energy generated by users' photovoltaic solar heat. Energy storage components (electricity storage modules, thermal storage tanks, cold storage tanks) are used for energy storage (cold and thermal power) in order to cope with load peaks.

Compared with the traditional large-scale central power station, the home system can realize its value faster, reduce the demand pressure on the power grid, and reduce the loss of traditional power stations during transmission and distribution. In the event of a large urban power grid failure, family life can be guaranteed. big impact.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (19)

1. a cogeneration cooling heating system, comprising: the cogeneration system with flue gas heat-exchange unit (1), and this flue gas heat-exchange unit (1) has the heat exchanger channels flow through for the heat transferring medium absorbed heat from flue gas,

It is characterized in that, also comprise:

Heat-accumulator tank (3), the first heat exchanger tube (31) be located in this heat-accumulator tank, this first heat exchanger tube (31) is communicated with the first heating circuit that to be formed with described first heat exchanger tube (31) be fire end with this heat exchanger channels;

First pipeline (101) and have heat source side heat exchanger (51) and use side heat exchanger (53) refrigerating plant (5), this heat source side heat exchanger (51) with heat transferring medium heat exchange mode and described first pipeline (101) heat exchange in the first pipeline (101)

Wherein, described first pipeline (101) is communicated with the second heating circuit that to be formed with described first heat exchanger tube (31) be fire end with the first heat exchanger tube (31).

2. cogeneration cooling heating system according to claim 1, is characterized in that,

Also comprise the 3rd pipeline (103), described use side heat exchanger (53) with heat transferring medium heat exchange mode and described 3rd pipeline (103) heat exchange in described 3rd pipeline (103),

The entrance (103 ') of described 3rd pipeline (103) is optionally communicated with water return pipeline (201) or disconnects, and the outlet of described 3rd pipeline (103) (103 ") is optionally communicated with the first supply channel (202) or disconnects.

3. cogeneration cooling heating system according to claim 2, is characterized in that,

The second heat exchanger tube (33) is provided with in described heat-accumulator tank (3), the entrance (331) of described second heat exchanger tube (33) is optionally communicated with described water return pipeline (201) or disconnects, and the outlet (333) of described second heat exchanger tube (33) is optionally communicated with described first supply channel (202) or disconnects.

4. cogeneration cooling heating system according to claim 1, is characterized in that,

The entrance (101 ') of described first pipeline (101) is optionally communicated with the outlet (311) of described first heat exchanger tube (31) or disconnects;

The outlet of described first pipeline (101) (101 "), be optionally communicated with the entrance (313) of described first heat exchanger tube (31) or disconnect;

The entrance (15) of described heat exchanger channels is optionally communicated with the outlet (311) of described first heat exchanger tube (31) or disconnects;

The outlet (17) of described heat exchanger channels is optionally communicated with the entrance (313) of described first heat exchanger tube (31) or disconnects.

5. the cogeneration cooling heating system according to any one of claim 1,2 or 4, is characterized in that,

Also comprise: radiator (4) and the 4th pipeline (104), described radiator (4) is in the mode and the 4th pipeline (104) heat exchange with heat transferring medium heat exchange in described 4th pipeline (104)

One of two ports of described 4th pipeline (104) are optionally communicated with the entrance (101 ') of described first pipeline (101) or disconnect, and the outlet of another port and described first pipeline (101) (101 ") be optionally communicated with or disconnect.

6. cogeneration cooling heating system according to claim 1, is characterized in that, also comprises:

7th pipeline (107), the port at its two ends and the entrance (313) of described first heat exchanger tube (31) and export (311) and be connected correspondingly respectively; And

Described 7th pipeline (107) has the pipeline section absorbed heat from photo-thermal device (6) by wherein heat transferring medium.

7. cogeneration cooling heating system according to claim 6, is characterized in that,

Generator (11) in described cogeneration system is electrically connected with the power input end of compressor (55) in described refrigerating plant (5) through grid-connected module (2),

Described grid-connected module (2) also has the port (21) in order to be electrically connected with the power output end of electrooptical device (8).

8. cogeneration cooling heating system according to claim 1, is characterized in that,

Described refrigerating plant (5) is heat pump, and for the condenser of heat release when described heat source side heat exchanger is refrigeration, described use side heat exchanger is the evaporimeter for absorbing heat during refrigeration.

9. cogeneration cooling heating system according to claim 1, is characterized in that, in described cogeneration system, engine (11) is water-cooled engine,

Or the outlet (311) of described first heat exchanger tube (31), the cylinder sleeve of described water-cooled engine, the entrance (15) of described heat exchanger channels, the outlet (17) of described heat exchanger channels, the entrance (313) of described first heat exchanger tube (31) are connected successively and are formed described first heating circuit;

Or, the outlet (311) of described first heat exchanger tube (31) separates two branch roads and is communicated with the water inlet (13 ') of the cylinder sleeve of described water-cooled engine with the entrance (15) of described heat exchanger channels correspondingly respectively, the delivery port of the cylinder sleeve of described water-cooled engine (13 ") be communicated with the entrance (313) of described first heat exchanger tube (31) respectively with the outlet (17) of described heat exchanger channels, thus form described first heating circuit.

10. cogeneration cooling heating system according to claim 1, is characterized in that, also comprises:

Cold-storage tank (7), the 3rd pipeline (103), wherein said use side heat exchanger (53) with heat transferring medium heat exchange mode and described 3rd pipeline (103) heat exchange in described 3rd pipeline (103), being connected with described cold-storage tank (7) respectively forms loop with exporting (103 ") for the entrance (103 ') of described 3rd pipeline (103); And

5th pipeline (105) and the 6th pipeline (106), described 5th pipeline connection is between described cold-storage tank (7) and the first supply channel (202), described 6th pipeline connection between described cold-storage tank (7) and water return pipeline (201), and described 5th pipeline and the 6th pipeline is respectively equipped with motor-driven valve or the magnetic valve of selective break-make.

11. cogeneration cooling heating systems according to claim 10, is characterized in that,

At the bottom of tank compared to described cold-storage tank (7), the outlet of described 3rd pipeline (103) (103 ") lower than the entrance (103 ') of described 3rd pipeline (103),

With at the bottom of the tank of described cold-storage tank (7) for benchmark, the connection position of described 5th pipeline (105) on described cold-storage tank (7) is lower than the described connection position of 6th pipeline (106) on described cold-storage tank (7).

12. cogeneration cooling heating systems according to claim 10, is characterized in that, also comprise:

Electricity storage module (9), the generator (11) in described cogeneration system, electricity storage module (9), grid-connected module (2) are electrically connected successively;

Described electricity storage module (9) also has the port (91) in order to be electrically connected with the power output end of electrooptical device (8);

Wherein, described electricity storage module (9) is powered to compressor (55) in described refrigerating plant (5) through described grid-connected module (2).

13. cogeneration cooling heating systems according to claim 1, is characterized in that, described engine is internal combustion engine, only have a described flue gas heat-exchange unit in described cogeneration cooling heating system.

14. 1 kinds of cogeneration cooling heating systems, comprising:

Engine (13), the generator (11) driven by described engine (13);

Have the Absorption Refrigerator (301) of condenser and evaporimeter, described evaporimeter is with absorb heat from the flue gas in the flue gas comb (108) of this engine mode and this flue gas comb (108) heat exchange;

Heat-accumulator tank (3), the first heat exchanger tube (31) be located in this heat-accumulator tank, described condenser is with to heat transferring medium exotherm in described first heat exchanger tube (31) and this first heat exchanger tube (31) heat exchange.

15. cogeneration cooling heating systems according to claim 14, is characterized in that, also comprise:

Cold-storage tank (7), the 3rd pipeline (103), wherein said evaporimeter with heat transferring medium heat exchange mode and described 3rd pipeline (103) heat exchange in described 3rd pipeline (103), being connected with described cold-storage tank (7) respectively forms loop with exporting (103 ") for the entrance (103 ') of described 3rd pipeline (103); And

5th pipeline (105) and the 6th pipeline (106), described 5th pipeline connection is between described cold-storage tank (7) and the first supply channel (202), described 6th pipeline connection between described cold-storage tank (7) and water return pipeline (201), and described 5th pipeline and the 6th pipeline is respectively equipped with motor-driven valve or the magnetic valve of selective break-make.

16. cogeneration cooling heating systems according to claim 15, is characterized in that,

The second heat exchanger tube (33) is provided with in described heat-accumulator tank (3), the entrance (331) of described second heat exchanger tube (33) is optionally communicated with described water return pipeline (201) or disconnects, and the outlet (333) of described second heat exchanger tube (33) is optionally communicated with described first supply channel (202) or disconnects.

17. cogeneration cooling heating systems according to claim 15, is characterized in that,

Also comprise: radiator (4) and the 4th pipeline (104), described radiator (4) is in the mode and the 4th pipeline (104) heat exchange with heat transferring medium heat exchange in described 4th pipeline (104)

One of two ports of described 4th pipeline (104) are optionally communicated with the entrance (313) of described first heat exchanger tube (31) or disconnect, and another port is optionally communicated with the outlet (311) of described first heat exchanger tube (31) or disconnects.

18. cogeneration cooling heating systems according to claim 15, is characterized in that, also comprise:

Electricity storage module (9), described generator (11), described electricity storage module (9), described grid-connected module (2) are electrically connected successively;

Described electricity storage module (9) also has the port (91) in order to be electrically connected with the power output end of electrooptical device (8);

7th pipeline (107), the port at its two ends and the entrance (313) of described first heat exchanger tube (31) and export (311) and be connected correspondingly respectively, and described 7th pipeline (107) has the pipeline section absorbed heat from photo-thermal device (6) by heat transferring medium in the 7th pipeline (107).

19. cogeneration cooling heating systems according to claim 14, is characterized in that, described engine is internal combustion engine.