CN219222632U - Cogeneration device, thermoelectric power generation system and heating equipment - Google Patents

Abstract

The utility model belongs to the technical field of thermoelectricity, in particular to a cogeneration device of heat and electricity. A heat collector; a thermoelectric power generation component, which is arranged on the heat collector and one end surface is in contact with the heat collector; it collects the heat after combustion of the gas through the heat collector, and uses the heat to heat one end of the thermoelectric power generation component, The temperature difference between the two ends of the thermoelectric power generation component is formed to realize power generation, and this solution sets a compensation distance between the upper end of the thermoelectric power generation component and the upper end of the heat collector, and the relationship between the output power of the thermoelectric power generation component and the compensation distance , thereby improving the overall power generation efficiency of the device.

Description

Cogeneration device, thermoelectric power generation system and heating equipment

technical field

The utility model belongs to the technical field of thermoelectricity, in particular to a cogeneration device, a thermoelectric power generation system and heating equipment.

Background technique

With the development of science and technology, thermoelectric power generation technology is more and more widely used, such as in generators or outdoor power generation, and the current thermoelectric power generation equipment uses combustion gas to heat one end of the thermoelectric power generation sheet, such as the existing technology For biomass fuel thermoelectric generators, the other end of the thermoelectric power generation sheet only uses a heat dissipation structure to form a temperature difference between the two ends of the thermoelectric power generation sheet. The heat dissipation structure uses a heat dissipation plate and a fin structure. The speed of heat dissipation in this way is affected by the ambient temperature. Moreover, in the environment where the heat source is provided by combustion, the ambient temperature will also rise, resulting in a decrease in the temperature difference between the two ends of the thermoelectric power generation sheet, which will affect the power generation effect.

In addition, in the portable combustion equipment in the prior art, the fuel source is placed in the combustion chamber for combustion, and the shell enclosing the TEG is installed on the side of the combustion chamber, and the TEG generates electrical output based on the temperature difference between the opposite sides. Install the heat conduction probe and heat conduction probe base unit on the TEG shell and protrude into the combustion chamber through a small channel. In this solution, the amount of heat loss is large, and the problem of low power generation efficiency still exists.

Moreover, the combustion power furnace and its power generation and charging method in the prior art include: a furnace body, an air port arranged on the furnace body for circulating gas; a fuel inlet arranged on the furnace body; The opening on the top is used to install the thermoelectric converter; the thermoelectric converter includes a heat conduction member connected with the hot end of the thermoelectric converter, and a heat dissipation member connected with the cold end of the thermoelectric converter; the heat conduction member is located in the furnace body; the The heat sink is located outside the furnace body. Aiming at the technical problem of low efficiency of biomass power generation, it can improve power generation efficiency. However, in the actual structure, there are still many factors that affect the power generation efficiency. How to improve the efficiency and stability of power generation through reasonable structural design is a technical difficulty for thermoelectric power generation equipment.

Utility model content

The purpose of the utility model is to provide a heat and power cogeneration device. Through reasonable structural configuration, the heat and power cogeneration device can use the heat provided by the combustion gas to make the thermoelectric power generation component generate electricity.

Based on this, the utility model provides a cogeneration device, comprising:

Collector;

A thermoelectric power generation assembly, the thermoelectric power generation assembly includes a first thermoelectric power generation assembly and a second thermoelectric power generation assembly, the first thermoelectric power generation assembly and the second thermoelectric power generation assembly are respectively arranged on opposite ends of the heat collector and in contact with said collector;

The upper end surface of the heat collector is higher than the upper end surface of the thermoelectric power generation assembly, and there is a compensation distance between the upper end surface of the thermoelectric power generation assembly and the upper end surface of the heat collector. The interval of is the compensation distance.

In the cogeneration device as described above, the first thermoelectric power generation assembly at least includes a plurality of first thermoelectric power generation sheets arranged on one side of the heat collector, and the height of the heat collector satisfies: H= h+X±20mm;

Wherein, h is the total height of a plurality of first thermoelectric generation sheets arranged; X is the height of a single first thermoelectric generation sheet.

According to the cogeneration device as described above, the heat collector is provided with a heat collection chamber, and the heat collector is also provided with a plurality of heat collection elements located in the heat collection chamber.

According to the cogeneration device as described above, the range of the compensation distance is 12mm to 55mm.

According to the cogeneration device described above, the compensation distance is 42mm.

A cogeneration device as described above further includes a cold end assembly, the cold end assembly is in contact with the other end surface of the thermoelectric power generation assembly, and a temperature difference is formed between the two end surfaces of the thermoelectric power generation assembly through a cold source.

A cogeneration device as described above, further comprising a heat exchanger, the heat exchanger is arranged on the upper end of the heat collector, the heat exchanger is provided with an exhaust port, and the inside of the heat exchanger A fan assembly is also provided.

A cogeneration device as described above further includes a combustion chamber, the heat collector includes a left shell and a right shell that are detachably connected to each other, and the left shell and the right shell are mutually installed to form a The heat collecting chamber, the combustion chamber is located on the lower side of the heat collector and communicates with the heat collecting chamber;

The heat collecting element includes a plurality of first rib columns and a plurality of second rib columns, the plurality of first rib columns are arranged in the left casing, and the plurality of second rib columns are arranged in the right casing. inside the shell.

In the cogeneration device as described above, there are protruding installation parts on both sides of the heat collector, a temperature probe hole is provided on the installation part, and a temperature sensor is provided on the temperature probe hole. .

A cogeneration device as described above further includes a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate are connected to the heat collector through a connecting rod.

The utility model also provides a thermoelectric power generation system, including the cogeneration device as described above, a control system, a power storage device, a second heat exchanger, and a water supply system;

The control system is electrically connected to the cogeneration device;

The power storage device is used to store the electric energy generated by the cogeneration device and provide power or auxiliary power to electrical appliances, the power storage device has an output port, and the power storage device is connected to the cogeneration device, Electrical connection of control system, second heat exchanger and water supply system;

The second heat exchanger is connected to the heat exchanger;

The water supply system is connected to the second heat exchanger for providing cold source to the cold end assembly.

The utility model also provides a heating device, which includes the heat collector, the heat collector is provided with a heat collecting element, and the outside of the heat collector is also connected with a warm air exporting assembly.

Implementation of the utility model embodiment has the following beneficial effects:

The utility model provides a heat and power cogeneration device, which collects the heat after gas combustion through a heat collector, and uses the heat to heat one end of a thermoelectric power generation component, so that a temperature difference is formed at both ends of the thermoelectric power generation component, thereby realizing power generation. The scheme sets a compensation distance between the upper end of the thermoelectric power generation component and the upper end of the heat collector, and improves the overall power generation efficiency of the device through the relationship between the output power of the thermoelectric power generation component and the compensation distance.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is the structural representation of a kind of cogeneration device of the utility model;

Fig. 2 is Fig. 1 explosion diagram one;

Fig. 3 is the relationship diagram of compensation distance and output power;

Fig. 4 is a schematic diagram of a thermoelectric power generation system of the present invention.

Detailed ways

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

As shown in Figures 1 to 4, the embodiment of the utility model provides a cogeneration device, including: a heat collector 11, which is used to input gas for combustion and provide heat; a thermoelectric power generation assembly 2, the thermoelectric power generation assembly 2 Comprising a first thermoelectric power generation assembly and a second thermoelectric power generation assembly, the first thermoelectric power generation assembly and the second thermoelectric power generation assembly are respectively arranged on opposite ends of the heat collector 11 and are in contact with the heat collector 11 ; used to output current; the cold end assembly 3 is in contact with the other end surface of the thermoelectric power generation assembly 2, and is used to form a temperature difference between the two end surfaces of the thermoelectric power generation assembly 2 through the cold source. The utility model provides a heat and power cogeneration device, which collects the heat after gas combustion through a heat collector, and uses the heat to heat one end of a thermoelectric power generation component, so that a temperature difference is formed at both ends of the thermoelectric power generation component, thereby realizing power generation. The scheme sets a compensation distance between the upper end of the thermoelectric power generation component and the upper end of the heat collector, and improves the overall power generation efficiency of the device through the relationship between the output power of the thermoelectric power generation component and the compensation distance.

Further, in the embodiment of the present utility model, the cogeneration device further includes a cold end assembly 3, the cold end assembly 3 is in contact with the other end surface of the thermoelectric power generation assembly 2, and the thermoelectric power generation assembly 2 A temperature difference is formed at the end faces of both sides. One end of the thermoelectric power generation component passes through the absorption heat collector 11, and the other end uses the cold end component to increase the temperature difference between the two ends of the thermoelectric power generation component, thereby increasing the temperature difference between the two ends of the thermoelectric power generation component. This scheme uses reasonable structural settings to make The combined heat and power device can provide electricity output after combustion of gas.

The cooling source in this solution can directly cool down one end of the thermoelectric power generation module 2 through water cooling, air cooling, etc., or use a system type, such as a water cooling cycle system, to cool down. Compared with the existing way of using heat dissipation structure , which can have a more stable low-temperature source to form a higher stability difference between the two ends of the thermoelectric power generation assembly 2, thereby improving the stability of power supply.

In the present invention, the compensation distance L ranges from 12mm to 55mm. Since the power generation performance of the thermoelectric power generation module 2 is related to the temperature difference between its two ends, as shown in Figure 3, it can be seen from the experiment that the power generation is greater when the compensation distance is increased. It will drop, so the closer to this side, the lower the temperature and the unstable value. If the thermoelectric power generation sheet is close to the upper end, it will cause uneven heat and low power generation efficiency. According to the experimental data, with the increase of L, the growth rate becomes smaller and smaller. Therefore, L=42mm is regarded as the optimal compensation distance

And when the compensation distance increases, the slope of the hot end temperature becomes smaller. For example, when L=12mm, the hot end temperature drops from 521K to 465K, and when L=42mm, the hot end temperature drops from 520K to 498K. Therefore, with the increase of the compensation length, the temperature uniformity of the hot end is improved, which is conducive to the release of the potential of the thermoelectric power generation assembly 2 .

Therefore, the utility model makes the heat obtained by the thermoelectric power generation module 2 at the hot end more uniform through a reasonable compensation distance design, and optimizes the structure to obtain higher power generation efficiency.

In the utility model, the thermoelectric power generation assembly 2 includes a plurality of first thermoelectric power generation sheets 21 and a plurality of second thermoelectric power generation sheet groups 22 arranged on both ends of the heat collector 11; the cold end assembly 3 includes The first cold end piece 31 arranged on the end surface of the first thermoelectric generation sheet group 21 and the second cold end piece 32 arranged on the end surface of the second thermoelectric generation sheet group 22 . By generating electricity on both sides, the efficiency is greatly improved.

In addition, in the present utility model, when a plurality of first thermoelectric power generation sheets 21 are arranged in a rectangular array, the height H of the heat collector 11 satisfies: H=a+1X±20; wherein, a is the row of the rectangular array Number; X is the height of a single first thermoelectric power generation sheet 21. According to the above analysis of the compensation distance L, the compensation distance between the first thermoelectric generation sheet 21 and the upper end of the heat collector 11 is an important factor affecting the power generation efficiency of the first thermoelectric generation sheet 21, and the cogeneration device will use multiple thermoelectric generation sheets Therefore, the position of the thermoelectric power generation sheet on the collector 11 and the parameters considering the compensation distance will cause the size of the collector 11 itself to be too large. This scheme proposes a reasonable size parameter formula, and in addition, considering different arrangements The total height of the thermoelectric power generation sheets in different ways is different, and the height H of the heat collector 11 satisfies: H=h+X±20; wherein, h is the total height after a plurality of first thermoelectric power generation sheets 21 are arranged; X is The height of a single first thermoelectric generating sheet 21.

In the present utility model, the cogeneration device also includes a heat exchanger 13, the heat exchanger 13 is arranged on the upper end of the heat collector 11, the heat exchanger 13 is provided with an exhaust port, and the heat exchanger Also be provided with fan assembly in device 13. The combusted gas is discharged through the heat collector 11 and the heat exchanger 13 , and at the same time, the heat collector 11 absorbs the heat of the combusted gas and transfers it to the thermoelectric power generation module 2 .

Moreover, after the heat exchanger 13 discharges the combusted gas, it can also collect waste heat through components such as an external heat exchanger. The utilization rate is maximized, and at the same time, the ambient temperature of the fan is reduced to ensure that it works at the working temperature, improve its working reliability, and the overall equipment structure can be more compact.

In the embodiment of the utility model, in order to further increase the heat transferred from the heat collector 11 to the thermoelectric power generation assembly 2, the heat collector 11 is provided with a heat collection cavity, and the heat collector 11 is also provided with a plurality of The heat collecting element in the heat collecting cavity. In this solution, the heat in the heat collecting cavity is absorbed and transferred to the thermoelectric power generation assembly 2 through the heat collecting element.

In addition, in the above-mentioned compensation distance L, the upper end surface of the heat collector 11 refers to the uppermost heat collecting element in the heat collector 11, that is, the compensation distance L is the thermoelectric power generation from the upper end surface of the uppermost heat collecting element to the uppermost end. The distance between the upper end faces of components 2.

Specifically, the cogeneration device further includes a combustion chamber 12, and the heat collector 11 includes a left shell 111 and a right shell 112 that are detachably connected to each other, and the left shell 111 and the right shell 112 form a The heat collecting cavity, the combustion chamber 12 is arranged on the lower side of the heat collector 11 and communicates with the heat collecting cavity; and the heat collecting element includes a plurality of first rib columns and a plurality of second rib columns A plurality of the first rib columns are arranged in the left casing 111 , and a plurality of the second rib columns are arranged in the right casing 112 . The combusted gas is discharged from the upper side through the heat collecting cavity. In order to effectively utilize the heat of the gas, the heat is absorbed to the surface of the left shell 111 and the right shell 112 through the arrangement of the first rib column and the second rib column, so as to transfer to the Thermoelectric power generation components 2.

In the present invention, the rib column can be round, square, triangular or polygonal, and can also be sheet-shaped. The main purpose is to increase the contact area with the combustion gas, thereby improving the absorption of heat.

There are two ways to arrange the first rib column and the second rib column in the utility model, one is that the first rib column and the second rib column are arranged opposite to each other. The second is that the first rib column and the second rib column are arranged in a relative dislocation. In addition, in this solution, a plurality of first rib columns also form a multi-layer arrangement, wherein the arrangement can be arranged layer by layer, or The dislocation arrangement of two adjacent layers can be used to improve the heat absorption, thereby improving the utilization rate of heat.

In the embodiment of the utility model, in order to improve the heat absorption and collection of the heat collector, the heat collector is made of high thermal conductivity materials, such as copper, aluminum, graphite, etc. can be used.

In addition, in the embodiment of the present utility model, the first cold end piece 31 and the second cold end piece 32 are both water heat exchangers. Similarly, the output hot water can also be used as a heat output to improve the function of the device.

Further, in the embodiment of the present utility model, a protruding installation part 115 is provided on both sides of the heat collector 11, and a temperature probe hole 1151 is provided on the installation part 115. The temperature probe 1151 is provided with a temperature sensor, and the temperature sensor is used to measure the temperature of the hot end of the thermoelectric power generation assembly 2, which helps to prevent the temperature of the hot end of the thermoelectric power generation assembly 2 from being too high. When the temperature of the hot end of the component 2 is higher than the maximum working temperature of the thermoelectric power generation component 2, the system stops the cogeneration device or increases the voltage of the upper fan component to protect the thermoelectric power generation component 2.

Moreover, in the present utility model, the heat and power cogeneration device further includes a first splint 41 and a second splint 42, and the first splint 41 and the second splint 42 are connected to the assembly through a connecting rod (not shown in the figure). Heater 11 is connected. Its structure is simple, and it is convenient to install.

The utility model also provides a thermoelectric power generation system, as shown in FIG. 4 , which includes the cogeneration device, a control system 91, a power storage device 92, a second heat exchanger 93, and a water supply system 94; The control system 91 is electrically connected to the cogeneration device; the power storage device 92 is used to store the electric energy generated by the cogeneration device and to provide power or auxiliary power to electrical appliances, and the power storage device 92 has an output port 921, and the power storage device 92 is electrically connected to the cogeneration device, the control system 91, the second heat exchanger 93 and the water supply system 94; the second heat exchanger 93 is connected to the heat exchanger 13 The water supply system 94 is connected to the second heat exchanger 93 for providing cold source to the cold end assembly 3 . A power storage device 92 is added to the system to solve the mismatch between power production and equipment power consumption; when the power production is greater than the power consumption of the equipment, the excess power is sent to the power storage device 92 for energy storage; , the power storage device 92 intervenes to supply power to the device.

In addition, by adding a water supply system 94 in this system, it can realize the cold source input of the cold end assembly 3 through water circulation. Specifically, the water supply system 94 includes an expander 941 and a water pump 942 connected to the outlet pipe of the cold end assembly 3. In addition It is connected to the water inlet of the cold end component 3 through a three-way valve, wherein the three-way valve can also be externally connected to a water source inlet 943 , and cold water can be supplemented through the water source inlet 943 . The expander 941 is beneficial to control the pressure of the water outlet pipeline, expands when heated, and promotes heat dissipation at the same time. And in this solution, the power of the water pump 942 can come from the power storage device 92 .

In this system, the second heat exchanger 93 is mainly used to cool down the water in the outlet pipe of the cold end assembly 3 , which can add a heat exchange fan 931 , and the power of the heat exchange fan 931 can come from the power storage device 92 .

The utility model also provides a voltage control method for a thermoelectric generator fan, which includes the following steps:

Step 1: After the cogeneration device is started, control the voltage value of the fan assembly to the initial voltage value U ₀ , and obtain the current power generation P ₀ .

Step 2: Control the voltage value of the fan assembly to the first voltage U ₁ to obtain the first generated power P ₁ ; wherein, the U ₁ =U ₀ + _UP , and the U _P is the unit voltage;

Step 3: Control the voltage value of the fan assembly to the first voltage U ₂ to obtain the second generated power P ₂ ; wherein, U ₁ =U _{0 -UP} ;

Step 4: comparing the current generated power P ₀ with the first generated power P ₁ and the second generated power P ₂ ;

Step 5:

If the current power generation _P0 is the maximum value, the cogeneration device maintains the current voltage value to work—the control ends;

If the first generated power P ₁ is the maximum value of the previous generated power P ₀ and the second generated power P ₂ , then adjust the value of the previous generated power P ₀ to P ₁ , and repeat steps 2 to 5 until the control ends ;

If the second generated power P ₂ is the maximum value of the previous generated power P ₀ and the first generated power P ₁ , then adjust the value of the previous generated power P ₀ to P ₂ , and repeat steps 2 to 5 until the control ends .

In the above control method, the value of unit voltage U _P can be 0.01, 0.1v, 1v, and can also be defined by yourself. It is mainly used to increase or decrease the first voltage by one unit voltage to obtain the first generated power _P1 and the second generated power. For power P ₂ , the cogeneration device adjusts the voltage value through the above-mentioned voltage control method to obtain an optimal working voltage value, which makes the equipment have the best thermal uniformity and the highest power generation efficiency.

The utility model also provides a heating device, which includes a heat collector 11, the heat collector 11 is provided with a heat collecting element, and a warm air exporting component is connected to the outer side of the heat collector 11. The warm air exporting component can adopt a fan arranged on the outside of the heat collector 11, after absorbing heat through the heat collector 11, the air flow with a warmer temperature led by the fan can be used to achieve the heating effect.

The utility model provides a heat and power cogeneration device, which collects the heat after combustion of gas through a heat collector, uses the heat to heat one end of a thermoelectric power generation component, and the other end provides a cold source through a cold end component to improve the thermal temperature difference power generation component The temperature difference at both ends, through reasonable structural settings, enables the cogeneration device to provide power output after combustion of gas, and this solution leaves a gap between the upper end of the thermoelectric power generation component and the upper end of the heat collector. There is an interval, through which the relationship between the output power of the thermoelectric power generation module and the compensation distance can be obtained, and then the overall power generation efficiency of the device can be improved.

It should be understood that the terms "first" and "second" are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish information of the same type from each other. For example, "first" information may also be referred to as "second" information without departing from the scope of the present invention, and similarly, "second" information may also be referred to as "first" information. In addition, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. are based on the drawings The orientation or positional relationship shown is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to the present invention. Utility model restrictions.

The above is a preferred embodiment of the present utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, some improvements and deformations can also be made, these improvements and deformations It is also regarded as the protection scope of the present utility model.

Claims (12)

1. A cogeneration device, characterized in that, comprising: heat collector (11); A thermoelectric power generation assembly (2), the thermoelectric power generation assembly (2) includes a first thermoelectric power generation assembly and a second thermoelectric power generation assembly, the first thermoelectric power generation assembly and the second thermoelectric power generation assembly are respectively arranged on the heat collector (11) on the opposite end faces and in contact with the heat collector (11); The upper end surface of the heat collector (11) is higher than the upper end surface of the thermoelectric power generation assembly (2), and there is an upper end surface between the thermoelectric power generation assembly (2) and the upper end surface of the heat collector (11). Compensation distance (L). 2. A cogeneration device according to claim 1, characterized in that the first thermoelectric power generation assembly at least includes a plurality of first thermoelectric power generation sheets arranged on one side of the heat collector (11) (21), the height (H) of the heat collector (11) satisfies: H=h+X±20mm; Wherein, h is the total height of a plurality of first thermoelectric generating sheets (21) arranged; X is the height of a single first thermoelectric generating sheet (21). 3. A cogeneration device according to claim 1, characterized in that, the heat collector (11) is provided with a heat collection cavity, and the heat collector (11) is also provided with a plurality of The heat collecting element in the heat collecting cavity. 4. A cogeneration device according to claim 1, characterized in that the compensation distance (L) ranges from 12 mm to 55 mm. 5. A cogeneration device according to claim 1, characterized in that the compensation distance (L) is 42mm. 6. A cogeneration device according to claim 1, characterized in that it further comprises a cold end assembly (3), the cold end assembly (3) is connected to the other side of the thermoelectric power generation assembly (2) The end faces are in contact, and a temperature difference is formed on both end faces of the thermoelectric power generation component (2) through the cold source. 7. A cogeneration device according to claim 3, characterized in that it also comprises a heat exchanger (13), the heat exchanger (13) is arranged at the upper end of the heat collector (11), the An exhaust port is provided on the heat exchanger (13), and a fan assembly is also provided in the heat exchanger (13). 8. A kind of heat and power cogeneration device according to claim 7, is characterized in that, also comprises combustion chamber (12), and described heat collector (11) comprises the left housing (111) that can detachably connect with each other and The right housing (112), and the left housing (111) and the right housing (112) are mutually installed to form the heat collecting chamber, and the combustion chamber (12) is arranged in the heat collecting chamber (11) The lower side communicates with the heat collecting cavity; The heat collecting element includes a plurality of first rib columns and a plurality of second rib columns, the plurality of first rib columns are arranged in the left housing (111), and the plurality of second rib columns are arranged in the right casing (112). 9. A cogeneration device according to claim 8, characterized in that, a protruding installation part (115) is also provided on both sides of the heat collector (11), and the installation part (115 ) is provided with a temperature probe hole (1151), and the temperature probe hole (1151) is provided with a temperature sensor. 10. A cogeneration device according to claim 9, characterized in that it further comprises a first splint (41) and a second splint (42), the first splint (41) and the second splint (42) is connected with the heat collector (11) through a connecting rod. 11. A thermoelectric power generation system, characterized in that it comprises a control system (91), a power storage device (92), a second heat exchanger (93), a water supply system (94) and any one of claims 1 to 10 cogeneration plant as described above; The control system (91) is electrically connected to the cogeneration device; The power storage device (92) is used for storing the electric energy generated by the cogeneration device and providing power or auxiliary power supply to electrical appliances, the power storage device (92) has an output port (921), and the power storage The device (92) is electrically connected with the cogeneration device, the control system (91), the second heat exchanger (93) and the water supply system (94); The second heat exchanger (93) is connected to the heat exchanger (13); The water supply system (94) is connected to the second heat exchanger (93) for providing a cold source. 12. A heating device, characterized in that it comprises the heat collector (11) according to claim 1, the heat collector (11) is provided with heat collecting parts, and the outside of the heat collector (11) is also Connected with warm air outlet components.

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