CN219713324U - Heating system for gas steam boiler - Google Patents

Abstract

The utility model relates to the technical field of gas steam boilers, and discloses a heating system for a gas steam boiler, which comprises the following components: the heat absorption devices comprise a first heat exchanger, a second heat exchanger and a compressor connected between the first heat exchanger and the second heat exchanger; the heat storage device comprises a plurality of first heat storage water tanks, and each first heat storage water tank is provided with a second heat exchanger so as to heat water in the first heat storage water tank; a steam device comprising a gas boiler and a steam chamber, the gas boiler having a liquid inlet and a steam outlet; the water outlet pipeline of the heat storage device is connected with the liquid inlet of the gas boiler, and the steam outlet of the gas boiler is connected with the steam chamber. Thus, the water supply temperature of the gas steam boiler can be increased, and the water entering the gas steam boiler is easy to boil and gasify, so that the heat efficiency of the gas steam boiler is improved.

Description

Heating system for gas steam boiler

Technical Field

The utility model relates to the technical field of gas steam boilers, in particular to a heating system for a gas steam boiler.

Background

At present, with the rapid development of social economy, the total consumption of fossil fuels gradually rises, and in order to achieve the goals of carbon peak and carbon neutralization, new energy types are continuously proposed at present. The gas-steam boiler uses natural gas, liquefied gas, city gas and other gas fuels as fuels, and the heat released in the boiler heats water in the boiler and enables the water to be vaporized into steam, so that the gas-steam boiler is a heat energy conversion device which can be widely used as a novel energy source in various fields.

But the gas fuel is used as fuel, and the energy utilization rate is low, so that the heating system of the gas steam boiler in the related art comprises a tap water pipeline, a filter, a water softener, a cold water tank, a gas steam boiler, a high-temperature water tank and a purifier. The flue outlet of the gas steam boiler is provided with a condensation energy-saving device, the water inlet of the condensation energy-saving device is communicated with the water outlet of the preheating water tank, the water inlet of the high-temperature water tank is communicated with the water outlet of the condensation energy-saving device through a pipeline, the water outlet of the high-temperature water tank is communicated with the water inlet of the gas steam boiler, the water inlet of the purifier is communicated with the water outlet of the gas steam boiler, the water outlet of the purifier is communicated with the preheating water tank through a pipeline, and after the low-temperature tap water is preheated by the heating device, the preheated water is sent to the condensation energy-saving device to be heated into high-temperature water, the high-temperature water is supplemented into the boiler and converted into steam, and compared with the low-temperature water directly entering the boiler to be converted into steam, the gas consumption is reduced.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the heat supply of the gas steam boiler is greatly influenced by the change of seasons, and under the condition that the climate temperature is gradually reduced, the water temperature of the water supply side of the gas steam boiler is gradually reduced, so that the heat supply of the gas steam boiler is also reduced, and the heat efficiency of the boiler is influenced.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the utility model and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art. It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the utility model and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a heating system for a gas steam boiler, which can improve the water supply temperature of the gas steam boiler, thereby improving the heat efficiency of the gas steam boiler.

In some embodiments, the heating system for a gas steam boiler comprises: the heat absorption devices comprise a first heat exchanger, a second heat exchanger and a compressor connected between the first heat exchanger and the second heat exchanger; the heat storage device comprises a plurality of first heat storage water tanks, and each first heat storage water tank is provided with a second heat exchanger so as to heat water in the first heat storage water tank; a steam device comprising a gas boiler and a steam chamber, the gas boiler having a liquid inlet and a steam outlet; the water outlet pipeline of the heat storage device is connected with the liquid inlet of the gas boiler, and the steam outlet of the gas boiler is connected with the steam chamber.

In some embodiments, the heat sink further comprises: the liquid outlet pipeline is connected with the liquid outlet end of the first heat exchanger and the liquid inlet end of the second heat exchanger, and the compressor is connected with the liquid outlet pipeline; the liquid return pipeline is connected with the liquid outlet end of the second heat exchanger and the liquid inlet end of the first heat exchanger.

In some embodiments, the heat sink further comprises: the flow regulating assembly is arranged on the liquid return pipeline; the flow regulating assembly includes a flow meter and a regulating valve.

In some embodiments, the first heat exchanger comprises a microchannel heat exchanger or a solar collector.

In some embodiments, the first hot water tank comprises: the second heat exchanger is arranged in the inner container to heat water in the inner container; the shell wraps the inner container, and a water inlet and a water outlet which are communicated with the inner container are arranged on the shell.

In some embodiments, the heat storage device further comprises: the second heat storage water tank is connected with the first heat storage water tanks, and water in the first heat storage water tanks flows to the second heat storage water tank.

In some embodiments, the heat storage device further comprises: the water pump is arranged on the water outlet pipeline of the second heat storage water tank so that water in the second heat storage water tank flows to the steam device side.

In some embodiments, the gas boiler further has a gas delivery port and a smoke exhaust port, and the steam device further comprises: the burner is arranged at the gas delivery port side of the gas boiler; the third heat exchanger is arranged on the smoke outlet side of the gas boiler; the gas-liquid separator is connected between the gas boiler and the steam chamber; the steam separated by the gas-liquid separator enters the steam chamber after heat exchange of the third heat exchanger.

In some embodiments, the third heat exchanger comprises a flue gas waste heat exchanger.

In some embodiments, the steaming device further comprises: the heater is arranged in the steam chamber.

The heating system for the gas steam boiler provided by the embodiment of the disclosure can realize the following technical effects:

heat is absorbed by the plurality of heat absorbing devices and transferred to the plurality of first heat storage water tanks of the heat storage device. In this way, the water in the first heat storage water tank can be heated to raise the water supply temperature of the gas steam boiler. The heated water is used as water supply of the gas steam boiler, the water at the temperature enters the gas steam boiler of the steam device from the water outlet pipeline, is easier to boil and gasify after being heated, and finally enters the steam chamber to generate steam with certain pressure for discharging. Therefore, after the temperature of the water supply of the gas steam boiler is raised, the heat efficiency of the gas steam boiler can be remarkably improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the utility model.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic view of a heating system for a gas-fired steam boiler according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a heat sink provided in accordance with an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a first heat storage water tank according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a heat storage device according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a steam unit provided in an embodiment of the present disclosure;

FIG. 6 is a schematic structural view of another steam device provided by an embodiment of the present disclosure;

fig. 7 is a table of relationships for a heating season single day water warm-up process experiment provided by embodiments of the present disclosure.

Reference numerals:

10: a heat sink; 11: a first heat exchanger; 12: a second heat exchanger; 13: a compressor; 14: a liquid outlet pipeline; 15: a liquid return pipeline; 16: a flow regulating assembly; 161: a flow meter; 162: a regulating valve;

20: a heat storage device; 21: a first heat storage water tank; 211: an inner container; 212: a housing; 213: a water inlet; 214: a water outlet; 22: a second heat storage water tank; 23: a water pump;

30: a steam device; 31: a gas-fired boiler; 311: a liquid inlet; 312: a steam outlet; 313: a gas transfer port; 314: a smoke outlet;

32: a steam chamber; 33: a burner; 34: a third heat exchanger; 35: a gas-liquid separator; 36: a heater; 361: a steam inlet pipeline; 362: and a water return pipeline.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

Referring to fig. 1, a heating system for a gas steam boiler according to an embodiment of the present disclosure includes: a plurality of heat absorbers 10, the heat absorbers 10 including a first heat exchanger 11, a second heat exchanger 12, and a compressor 13 connected therebetween; the heat storage device 20 comprises a plurality of first heat storage water tanks 21, and each first heat storage water tank 21 is provided with a second heat exchanger 12 to heat water in the first heat storage water tank 21; a steam device 30 including a gas boiler 31 and a steam chamber 32, the gas boiler 31 having a liquid inlet 311 and a steam outlet 312; the water outlet line of the heat storage device 20 is connected to the liquid inlet 311 of the gas boiler 31, and the steam outlet 312 of the gas boiler 31 is connected to the steam chamber 32.

With the heating system for the gas-steam boiler provided by the embodiment of the present disclosure, heat is absorbed through the plurality of heat absorbers 10, and the absorbed heat is transferred to the plurality of first heat storage water tanks 21 of the heat storage device 20, so that water in the first heat storage water tanks 21 can be heated to increase the water supply temperature of the gas-steam boiler. The heated water is taken as water supply of the gas steam boiler, the water at the temperature enters the gas steam boiler 31 of the steam device 30 from the water outlet pipeline, is easier to boil and gasify after being heated, and finally enters the steam chamber 32 to generate steam with certain pressure for discharging. Therefore, after the temperature of the water supply of the gas steam boiler is raised, the heat efficiency of the gas steam boiler can be remarkably improved.

In the embodiment of the present disclosure, the plurality of heat absorbers 10 are mainly used to heat water in the plurality of first hot water storage tanks 21 in the hot water storage device 20. Wherein R290 (propane) is used as the refrigerant flowing between the first heat exchanger 11 and the second heat exchanger 12, the refrigerant has an ozone depletion potential (Ozone Depletion Potential, ODP) value of 0, a low global warming potential (GlobalWarming Potential, GWP) value and excellent thermal performance. Therefore, the heating efficiency of the water in the first hot water storage tank 21 can be effectively improved.

The solar energy is used as a sustainable energy source, and has no influence on environmental shadows and the like. In some embodiments, the first heat exchanger 11 comprises a microchannel heat exchanger or a solar collector. Thus, solar energy resources can be effectively utilized, and the use of other resources is reduced.

In the embodiment of the present disclosure, the first heat exchanger 11 includes a microchannel heat exchanger, including a plurality of microchannel flat tubes, and the refrigerant flows in the plurality of microchannel flat tubes to complete the phase change process.

In the presently disclosed embodiment, the first heat exchanger 11 comprises a solar collector. When the solar heat collector collects solar radiation heat, the solar heat collector can work as an evaporator, so that the refrigerant in the evaporator absorbs the solar radiation heat or the heat in the air to complete a phase change process.

Alternatively, the second heat exchanger 12 comprises a microchannel heat exchanger or a coil heat exchanger.

As shown in connection with fig. 2, in some embodiments, the heat sink 10 further comprises: the liquid outlet pipeline 14 is connected with the liquid outlet end of the first heat exchanger 11 and the liquid inlet end of the second heat exchanger 12, and the compressor 13 is connected with the liquid outlet pipeline 14; the liquid return pipeline 15 is connected with the liquid outlet end of the second heat exchanger 12 and the liquid inlet end of the first heat exchanger 11.

In the embodiment of the disclosure, the heat absorber 10 forms a heat absorption circulation system through the first heat exchanger 11, the liquid outlet pipeline 14, the compressor 13, the second heat exchanger 12 and the liquid return pipeline 15. The heat of the first heat exchanger 11 is transferred to the second heat exchanger 12 through the refrigerant, and the second heat exchanger 12 is provided in the first hot water storage tank 21, thereby heating the water in the first hot water storage tank 21.

In the embodiment of the present disclosure, the refrigerant absorbs solar radiation heat and heat in the air in the first heat exchanger 11, completing the transition from the liquid refrigerant to the gaseous refrigerant; the gaseous refrigerant enters the compressor 13 for compression, then enters the second heat exchanger 12 for condensation and heat release, transfers heat to water in the first heat storage water tank 21, and then flows back to the first heat exchanger 11 from the liquid return pipeline 15 for continuous heat absorption, thus completing the heat absorption cycle.

As shown in connection with fig. 2, the heat sink 10 further comprises: the flow regulating assembly 16 is arranged on the liquid return pipeline 15; the flow regulating assembly 16 includes a flow meter 161 and a regulating valve 162.

In the embodiment of the present disclosure, the refrigerant absorbs solar radiation heat and heat in the air in the first heat exchanger 11, completing the transition from the liquid refrigerant to the gaseous refrigerant; the gaseous refrigerant enters the compressor 13 to be compressed, and is converted from low-temperature low-pressure gaseous refrigerant to high-temperature high-pressure gaseous refrigerant; the high-temperature high-pressure gaseous refrigerant enters the second heat exchanger 12 to perform condensation heat release, and heat is transferred to water in the first heat storage water tank 21, so that the high-temperature high-pressure gaseous refrigerant is converted into a high-temperature high-pressure liquid refrigerant; the high-temperature high-pressure liquid refrigerant is throttled by a flow meter 161 and a regulating valve 162 in the flow regulating assembly 16 and then converted into low-temperature low-pressure liquid refrigerant; finally, the heat flows back to the first heat exchanger 11 to continuously absorb the heat, and the heat absorption cycle is completed.

As shown in connection with fig. 3, in some embodiments, the first hot water storage tank 21 includes: the inner container 211, the second heat exchanger 12 is arranged in the inner container 211 to heat the water of the inner container 211; the shell 212 wraps the inner container 211, and a water inlet 213 and a water outlet 214 which are communicated with the inner container 211 are arranged on the shell 212.

In the embodiment of the present disclosure, the inner container 211 and the housing 212 are made of thermal insulation materials, so that the temperature of water in the inner container 211 can be ensured to be constant. Meanwhile, in order to heat the water in the inner container 211 more quickly, the second heat exchanger 12 is disposed in the inner container 211. Optionally, independent valves are disposed on the water inlet 213 and the water outlet 214, so as to control the water inlet flow and the water outlet flow of the first heat storage water tank 21. Optionally, a temperature sensor is disposed in the inner container 211, so as to monitor the temperature of the water in the first heat storage water tank 21 in real time, and supply water to the steam device 30 after the water temperature reaches a set temperature.

As shown in connection with fig. 4, in some embodiments, the thermal storage device 20 further includes: the second hot water storage tank 22 is connected to the plurality of first hot water storage tanks 21, and water in the plurality of first hot water storage tanks 21 flows to the second hot water storage tank 22.

In the embodiment of the present disclosure, after the plurality of heat absorbers 10 heat the water in the plurality of first hot water storage tanks 21, in order to increase the utilization rate of the first hot water storage tanks 21. A second hot water storage tank 22 is further provided, and the volume of the second hot water storage tank 22 is much larger than that of the first hot water storage tank 21, so that the second hot water storage tank 22 can store water in a plurality of first hot water storage tanks 21, and the required water supply amount of the steam device 30 is ensured.

As shown in connection with fig. 4, in some embodiments, the thermal storage device 20 further includes: the water pump 23 is provided on the water outlet line of the second hot water tank 22 so as to flow the water in the second hot water tank 22 to the steam device 30 side.

In the embodiment of the present disclosure, the capacity of each second heat storage water tank 22 is 200L to 600L, and the plurality of independent heat absorbers 10 preheat the water in the plurality of first heat storage water tanks 21, respectively, and after reaching a predetermined temperature, the plurality of first heat storage water tanks 21 are transferred into the second heat storage water tanks 22. And water in the second heat storage water tank 22 is transferred to the steaming device 30 by the water pump 23, thereby further securing the required water supply amount of the steaming device 30.

In some embodiments, the gas boiler 31 has a liquid inlet 311 and a steam outlet 312, the water outlet line of the heat storage device 20 is connected to the liquid inlet 311 of the gas boiler 31, and the steam outlet 312 of the gas boiler 31 is connected to the steam chamber 32.

In the embodiment of the present disclosure, the gas boiler 31 is used to heat water provided from the second hot water storage tank 22. The water outlet pipe of the heat storage device 20 is connected to the liquid inlet 311 of the gas boiler 31, that is, the water outlet pipe of the second heat storage water tank 22 is connected to the liquid inlet 311 of the gas boiler 31, and hot water is supplied into the gas boiler 31 by the water pump 23. After the water is heated to boil and vaporize in the gas boiler 31, the water is discharged from the steam outlet 312 of the gas boiler 31 and enters the steam chamber 32.

As shown in connection with fig. 5, in some embodiments, the gas boiler 31 further has a gas delivery port 313 and a gas discharge port 314, and the steam device 30 further includes: a burner 33 provided on the gas delivery port 313 side of the gas boiler 31; the third heat exchanger 34 is provided on the exhaust port 314 side of the gas boiler 31; a gas-liquid separator 35 connected between the gas boiler 31 and the steam chamber 32; the steam separated by the gas-liquid separator 35 enters the steam chamber 32 after heat exchange by the third heat exchanger 34.

In the disclosed embodiment, the gas boiler 31 includes a gas delivery port 313 and a smoke discharge port 314. Wherein, the gas delivery port 313 is provided with a burner 33 for inputting and igniting natural gas and air, so as to ensure that the gas boiler 31 can heat water to boiling and vaporization; the third heat exchanger 34 is provided on the exhaust port 314 side to recover the exhaust gas temperature of the gas boiler 31. The gas-liquid separator 35 is connected between the gas boiler 31 and the steam chamber 32; for separating gas from liquid, and the steam separated by the gas-liquid separator 35 enters the steam chamber 32 after heat exchange by the third heat exchanger 34, so that the exhaust gas temperature of the gas-fired boiler 31 can be recovered and the steam can be further heated.

Optionally, in some embodiments, the third heat exchanger 34 comprises a flue gas waste heat exchanger. In this way, the exhaust gas temperature of the gas boiler 31 can be recovered, ensuring that the third heat exchanger 34 can further heat the steam.

In some embodiments, the steaming device 30 further comprises: the heater 36 is provided in the steam chamber 32. The steam in the steam chamber 32 can be heated again to ensure that the steam reaches the steam temperature required by a part of the industrial user.

In other embodiments, as shown in fig. 6, the steam device 30 may have another structure, and the water outlet pipeline of the second hot water storage tank 22 is directly connected to the steam chamber 32 after passing through the third heat exchanger 34; the heater 36 is a condensing heat exchanger and is connected to the liquid inlet 311 and the steam outlet 312 of the gas boiler 31 through a steam inlet line 361 and a water return line 362; the natural gas is ignited in the burner 33 and heats the water in the gas-fired boiler 31 into primary side steam, and the primary side steam flows into the heater 36 through the steam inlet pipeline 361 to be converted into water by heat exchange, and returns to the gas-fired boiler 31 through the water return pipeline 362 to continuously absorb heat; in this way, the water introduced into the steam chamber 32 undergoes a plurality of heat exchanges, thereby forming secondary-side steam discharge.

In the above embodiment, the water supply temperature of the gas steam boiler can be increased by the synergistic action of the heat absorbing device 10, the heat storage device 20 and the steam device 30, thereby increasing the thermal efficiency of the gas steam boiler. But in the change along with the season, the water supply temperature of the steam boiler can be adjusted according to the actual situation. The seasons in northern areas change obviously, and the climate and temperature change is large.

Alternatively, during non-heating seasons in northern areas, the heat absorber 10 and the heat storage device 20 operate together, and the water outlet pipeline of the heat storage device 20 is directly used for resident domestic hot water; the steaming device 30 is independently operated, and tap water is directly used as water supply of the steaming device 30 to supply steam to a part of industrial users having annual steam demand.

Optionally, during the heating season in the northern area, the heat absorber 10, the heat storage device 20 and the steam device 30 operate together, and the water outlet pipeline of the heat storage device 20 is used for not only domestic hot water of residents, but also hot water for water supply of the steam device 30, thereby ensuring the water supply temperature of the gas steam boiler. Wherein, the following table is a part of experimental data of preheated water.

Referring to fig. 7, a relationship table of the heating Ji Shan day water preheating process experiment is shown. Wherein Q in the graph _h For heating power, I _T For solar radiation intensity, COP is the efficiency of the absorber, W _com，m Is the power of the compressor.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A heating system for a gas steam boiler, comprising:

-a plurality of heat sinks (10), the heat sinks (10) comprising a first heat exchanger (11), a second heat exchanger (12) and a compressor (13) connected therebetween;

the heat storage device (20) comprises a plurality of first heat storage water tanks (21), and each first heat storage water tank (21) is provided with the second heat exchanger (12) so as to heat water in the first heat storage water tank (21);

a steam device (30) comprising a gas boiler (31) and a steam chamber (32), the gas boiler (31) having a liquid inlet (311) and a steam outlet (312);

the water outlet pipeline of the heat storage device (20) is connected with the liquid inlet (311) of the gas boiler (31), and the steam outlet (312) of the gas boiler (31) is connected with the steam chamber (32).

2. A heating system according to claim 1, wherein the heat absorber means (10) further comprises:

the liquid outlet pipeline (14) is connected with the liquid outlet end of the first heat exchanger (11) and the liquid inlet end of the second heat exchanger (12), and the compressor (13) is connected with the liquid outlet pipeline (14);

the liquid return pipeline (15) is connected with the liquid outlet end of the second heat exchanger (12) and the liquid inlet end of the first heat exchanger (11).

3. A heating system according to claim 2, wherein the heat absorber means (10) further comprises:

the flow regulating assembly (16) is arranged on the liquid return pipeline (15);

the flow regulating assembly (16) includes a flow meter (161) and a regulating valve (162).

4. Heating system according to claim 1, characterized in that the first heat exchanger (11) comprises a micro-channel heat exchanger or a solar collector.

5. A heating system according to any one of claims 1 to 4, wherein the first hot water storage tank (21) comprises:

the second heat exchanger (12) is arranged in the inner container (211) to heat water of the inner container (211);

the shell (212) wraps the inner container (211), and a water inlet (213) and a water outlet (214) which are communicated with the inner container (211) are arranged on the shell (212).

6. A heating system according to claim 5, wherein the heat storage device (20) further comprises:

and the second heat storage water tank (22) is connected with the plurality of first heat storage water tanks (21), and water of the plurality of first heat storage water tanks (21) flows to the second heat storage water tank (22).

7. The heating system according to claim 6, wherein the heat storage device (20) further comprises:

and a water pump (23) which is provided on the water outlet line of the second hot water storage tank (22) so as to cause the water in the second hot water storage tank (22) to flow to the steam device (30).

8. A heating system according to any one of claims 1 to 4, wherein the gas boiler (31) further has a gas delivery port (313) and a smoke discharge port (314), and the steam device (30) further comprises:

a burner (33) provided on the gas inlet (313) side of the gas boiler (31);

a third heat exchanger (34) provided on the exhaust port (314) side of the gas boiler (31);

a gas-liquid separator (35) connected between the gas boiler (31) and the steam chamber (32); the steam separated by the gas-liquid separator (35) enters the steam chamber (32) after heat exchange of the third heat exchanger (34).

9. A heating system according to claim 8, wherein the third heat exchanger (34) comprises a flue gas waste heat exchanger.

10. A heating system according to claim 8, wherein the steam device (30) further comprises:

and a heater (36) provided in the steam chamber (32).