Heat supply system

Abstract

The embodiment of the invention relates to the technical field of heat supply systems, and particularly discloses a heat supply system which comprises a heat source mechanism; the first heat exchanger is provided with a first heat transfer end, a first heat outlet end and a second heat outlet end, and the first heat transfer end is connected with the heat source mechanism; the heat conveying mechanism is connected with the first heat outlet end and the second heat outlet end; the second heat exchanger is provided with a third heat transfer end, a fourth heat transfer end, a third heat outlet end and a fourth heat outlet end, and the third heat transfer end and the fourth heat transfer end are both connected with the heat transfer mechanism; the heat storage mechanism is connected with the third heat outlet end and the fourth heat outlet end; the heat storage mechanism is used for receiving and storing heat energy provided by the heat source mechanism or providing heat energy for the heat conveying mechanism. The heat source mechanism is started when the electricity price is low at night, heat generated by the heat source mechanism is stored in the heat storage mechanism, the heat stored by the heat storage mechanism is conveyed to the heat conveying mechanism in the daytime and supplied to the outside, and the operation cost of the heat supply system can be reduced.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of heating systems, and in particular to a heating system. Background Art

[0002] The heating system is usually used to provide heat energy to external production equipment and building facilities to meet the needs of production and life. At present, the common heating methods are mainly through biomass combustion heating, solar energy heating, gas or oil and other fossil energy combustion heating, electric energy conversion heating and other heating methods. The electric energy conversion heating method is usually realized by electric heating wire heating, heat pump, electromagnetic heating and other methods. Among the above-mentioned common electric energy conversion heating methods, the heat pump heating method is the most energy-saving within the appropriate heating temperature range. Therefore, the heat pump heating is listed as an energy-saving, environmentally friendly and low-carbon heating method.

[0003] Traditional heat pump heating operates according to the needs of the heat-using end. When the heat-using end needs heat, the heat pump equipment starts to provide heat. When water or other fluids are used as the heating medium, the heat pump equipment can use an insulated water tank to choose to store heat during a period of time when the operating cost is low. When the heating medium is air or other gases, it is difficult for the heat pump to operate in a heat storage mode and it can only work in real time in conjunction with the heat-using end, resulting in excessively high system operating costs, thereby increasing the company's production costs. Summary of the invention

[0004] An embodiment of the present invention provides a heating system, aiming to solve the problem of excessively high operating costs of the heating system.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a heating system, comprising:

[0006] Heat source mechanism;

[0007] A first heat exchanger having a first heat input end, a first heat output end, and a second heat output end, wherein the first heat input end is connected to the heat source mechanism;

[0008] A heat transfer mechanism, connected to the first heat output end and the second heat output end respectively, and the heat transfer mechanism is used to output heat energy to the outside;

[0009] A second heat exchanger having a third heat transfer end, a fourth heat transfer end, a third heat outlet end and a fourth heat outlet end, wherein the third heat transfer end and the fourth heat transfer end are both connected to the heat transfer mechanism;

[0010] A heat storage mechanism, which is respectively connected to the third heat output end and the fourth heat output end; wherein, the heat source mechanism is used to provide heat energy to the heat transfer mechanism or to the heat storage mechanism, and the heat storage mechanism is used to receive and store the heat energy provided by the heat source mechanism and / or the heat transfer mechanism or to provide heat energy to the heat transfer mechanism.

[0011] Optionally, the heat transfer mechanism includes a first check valve, a first compressor, a first valve body, a heat exchange unit, a second check valve, a first throttling device, a second valve body, a third valve body, a third check valve and a fourth check valve; the first heat output end is connected to the first check valve, the first check valve is connected to the first compressor, the first compressor is connected to the first end of the first valve body, the third end of the first valve body is connected to the heat exchange unit, the heat exchange unit is connected to the second check valve, the second check valve is connected to the first throttling device, the first throttling device is connected to the second end of the second valve body, and the first end of the second valve body is connected to the second heat output end;

[0012] The third heat transfer end is connected to the second end of the first valve body, the fourth heat transfer end is connected to the second end of the third valve body, the first end of the third valve body is connected to the third check valve, and the third check valve is connected to the first throttling device;

[0013] The fourth check valve is arranged on the connection path between the third end of the second valve body and the third end of the third valve body; the fourth end of the first valve body is connected to the connection path between the first check valve and the first compressor.

[0014] Optionally, when the first end and the third end of the first valve body are communicated, and the first end and the second end of the second valve body are communicated, a first circulation loop is formed among the first heat exchanger, the first check valve, the first compressor, the first valve body, the heat exchange unit, the second check valve, the first throttling device and the second valve body, and the heat source mechanism is used to provide heat energy to the heat exchange unit through the first circulation loop.

[0015] Optionally, when the first end and the second end of the first valve body are communicated, the second end and the first end of the third valve body are communicated, and the first end and the second end of the second valve body are communicated, a second circulation loop is formed among the first heat exchanger, the first check valve, the first compressor, the first valve body, the second heat exchanger, the third valve body, the third check valve, the first throttling device and the second valve body, and the heat source mechanism is used to provide heat energy to the heat storage mechanism through the second circulation loop.

[0016] Optionally, when the second end and the fourth end of the first valve body are in communication, and the fourth end and the first end of the first valve body are in communication, the fourth end of the first valve body is connected to the inlet end of the first compressor, the outlet end of the first compressor is in communication with the first end of the first valve body, the first end of the first valve body is in communication with the third end of the first valve body, and the third end and the second end of the second valve body are in communication, and the second end and the third end of the third valve body are in communication, a third circulation loop is formed among the second heat exchanger, the first valve body, the heat exchange unit, the second one-way valve, the first throttling device, the second valve body, the fourth one-way valve, and the third valve body, and the heat storage mechanism is configured to provide heat energy to the heat exchange unit through the third circulation loop.

[0017] Optionally, the directions in which the third one-way valve and the fourth one-way valve allow passage are opposite; the directions in which the second one-way valve and the third one-way valve allow passage are opposite.

[0018] Optionally, the heat storage mechanism includes a circulation pump and a heat preservation device, and a heat storage circulation loop is formed by connecting the third heat outlet end, the circulation pump, the heat preservation device, and the fourth heat outlet end in communication.

[0019] Optionally, the heat preservation device is a heat preservation water tank.

[0020] Optionally, the heat source mechanism includes an evaporator, a second compressor, and a second throttling device, and a heating circulation loop is formed by connecting the second compressor, the first heat transmission end, the second heat transmission end, the second throttling device, and the evaporator in sequence.

[0021] Optionally, the heat exchange unit is an air-cooled heat exchanger.

[0022] The beneficial effects of the embodiments of the present invention are as follows: Different from the prior art, the heating system in the present invention includes a heat source mechanism, a first heat exchanger, a heat transmission mechanism, a second heat exchanger, and a heat storage mechanism. The first heat exchanger includes a first heat transmission end, a first heat output end, and a second heat output end. The first heat transmission end is connected to the heat source mechanism, and the heat energy generated by the heat source mechanism is transported to the first heat exchanger. The heat transmission mechanism is respectively connected to the first heat output end and the second heat output end, so that the heat transmission mechanism absorbs the heat generated by the heat source mechanism through the first heat exchanger. The heat transmission mechanism is used to output heat energy to the outside. The second heat exchanger has a third heat transmission end, a fourth heat transmission end, a third heat output end, and a fourth heat output end. Both the third heat transmission end and the fourth heat transmission end are connected to the heat transmission mechanism, and the heat transmission mechanism can transport heat to the second heat exchanger. The heat storage mechanism is respectively connected to the third heat output end and the fourth heat output end of the second heat exchanger, so that the heat storage mechanism can exchange heat with the heat transmission mechanism through the second heat exchanger. Therefore, the heat source mechanism is used to provide heat energy to the heat transmission mechanism or to the heat storage mechanism. The heat storage mechanism is used to receive and store the heat energy provided by the heat source mechanism or to provide heat energy to the heat transmission mechanism. Therefore, when the electricity price is low at night, the heat source mechanism is started, and the heat generated by the heat source mechanism is stored in the heat storage mechanism. During the day, the heat stored in the heat storage mechanism is transported to the heat transmission mechanism and provided to the outside, which can reduce the operating cost of the heating system. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0024] Figure 1 It is a schematic diagram of the composition of the heating system in an embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the connection of each component of the heating system in an embodiment of the present invention;

[0026] Figure 3 It is a schematic diagram of the flow path of the refrigerant in the first circulation loop in an embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the flow path of the refrigerant in the second circulation loop in an embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the flow path of the refrigerant in the third circulation loop in an embodiment of the present invention.

[0029] Description of the Reference Numerals:

[0030] 100, Heating system; 1, Heat source mechanism; 11, Evaporator; 12, Second compressor; 13, Second throttling device; 2, First heat exchanger; 21, First heat transfer end; 22, Second heat transfer end; 23, First heat output end; 24, Second heat output end; 3, Heat transfer mechanism; 31, First check valve; 32, First compressor; 33, First valve body; 331, First end of the first valve body; 332, Second end of the first valve body; 333, Third end of the first valve body; 334, Fourth end of the first valve body; 34, Second valve body; 341, First end of the second valve body; 342, Second end of the second valve body; 343, Third end of the second valve body; 35, Third valve body; 351, First end of the third valve body; 352, Second end of the third valve body; 353, Third end of the third valve body; 36, Second check valve; 37, Third check valve; 38, Fourth check valve; 39, First throttling device; 39a, Heat exchange unit; 4, Second heat exchanger; 41, Third heat transfer end; 42, Fourth heat transfer end; 43, Third heat output end; 44, Fourth heat output end; 5, Heat storage mechanism; 51, Circulation pump; 52, Thermal insulation device. Detailed implementation manners

[0031] To facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are only for the purpose of illustration.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in this specification in the description of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0033] Please refer to Figure 1 , the present invention provides a heating system 100, and the heating system 100 includes a heat source mechanism 1, a first heat exchanger 2, a heat transfer mechanism 3, a second heat exchanger 4 and a heat storage mechanism 5. Among them, the heat source mechanism 1 is used to provide heat energy, such as providing heat energy to the heat transfer mechanism 3 and the heat storage mechanism 5. The heat transfer mechanism 3 is used to provide heat to the outside / user. The heat storage mechanism 5 is used to store heat, such as storing heat during periods with lower operating costs and releasing heat during periods with higher operating costs. Both the first heat exchanger 2 and the second heat exchanger 4 are used for heat exchange.

[0034] The heat source mechanism 1 is used for generating heat. The heat source mechanism 1 converts electrical energy into heat energy, such as electric heating equipment, heat pumps (such as air source heat pumps, ground source heat pumps, water source heat pumps). The heat source mechanism 1 can also be waste heat, waste heat or biomass heat energy, etc. In one embodiment, the heat source mechanism 1 is a heat pump, and a refrigerant is provided in the heat source mechanism 1, and the refrigerant is used for transferring heat.

[0035] Please refer to Figure 2 , the first heat exchanger 2 includes a first heat transfer end 21, a second heat transfer end 22, a first heat outlet end 23 and a second heat outlet end 24. The first heat transfer end 21 and the second heat transfer end 22 are connected to the heat source mechanism 1. Therefore, the heat energy generated by the heat source mechanism 1 is transported to the first heat exchanger 2.

[0036] A refrigerant is provided in the heat transfer mechanism 3. The heat transfer mechanism 3 is respectively connected to the first heat outlet end 23 and the second heat outlet end 24. The first heat outlet end 23 and the second heat outlet end 24 are communicated with each other, so that the heat transfer mechanism 3 absorbs the heat generated by the heat source mechanism 1 through the first heat exchanger 2. The heat transfer mechanism 3 is used for outputting heat energy to the outside / user. The objects for which the heat transfer mechanism 3 outputs heat energy include but are not limited to production equipment, building facilities and residential heating.

[0037] The second heat exchanger 4 has a third heat transfer end 41, a fourth heat transfer end 42, a third heat outlet end 43 and a fourth heat outlet end 44. Among them, the third heat transfer end 41 and the fourth heat transfer end 42 are communicated with each other, and the third heat outlet end 43 and the fourth heat outlet end 44 are communicated with each other. Both the third heat transfer end 41 and the fourth heat transfer end 42 are connected to the heat transfer mechanism 3. Therefore, the heat transfer mechanism 3 can transport the heat to the second heat exchanger 4. The second heat exchanger 4 exchanges heat with the outside / heat storage mechanism 5 to transport the heat to the outside / heat storage mechanism 5.

[0038] A heat storage medium is provided in the heat storage mechanism 5. The heat storage mechanism 5 can be used for heat storage. The heat storage mechanism 5 is respectively connected to the third heat outlet end 43 and the fourth heat outlet end 44 of the second heat exchanger 4, so that the heat storage mechanism 5 can exchange heat with the heat transfer mechanism 3 through the second heat exchanger 4. Therefore, the heat generated by the heat source mechanism 1 can be transferred to the heat storage mechanism 5 through the heat transfer mechanism 3 and the second heat exchanger 4, that is, the heat source mechanism 1 is used for providing heat energy to the heat transfer mechanism 3 or providing heat energy to the heat storage mechanism 5. The heat storage mechanism 5 is used for receiving and storing the heat energy provided by the heat source mechanism 1 and / or the heat transfer mechanism 3 or providing heat energy to the heat transfer mechanism 3. Therefore, when the electricity price is low at night, the heat source mechanism 1 is started, and the heat generated by the heat source mechanism 1 is stored in the heat storage mechanism 5. During the day, the heat stored in the heat storage mechanism 5 is transported to the heat transfer mechanism 3 and provided to the outside / user, which can reduce the operating cost of the heating system 100.

[0039] Please refer to Figure 2, in some embodiments, the heat transfer mechanism 3 includes a first check valve 31, a first compressor 32, a first valve body 33, a heat exchange unit 39a, a second check valve 36, a first throttling device 39, a second valve body 34, a third valve body 35, a third check valve 37, and a fourth check valve 38.

[0040] Specifically, the first heat output end 23 is connected to the first check valve 31, the first check valve 31 is connected to the first compressor 32, the first compressor 32 is connected to the first end 331 of the first valve body 33, the third end 333 of the first valve body 33 is connected to the heat exchange unit 39a, the heat exchange unit 39a is connected to the second check valve 36, the second check valve 36 is connected to the first throttling device 39, the first throttling device 39 is connected to the second end 342 of the second valve body 34, and the first end 341 of the second valve body 34 is connected to the second heat output end 24.

[0041] The third heat transfer end 41 is connected to the second end 332 of the first valve body 33, the fourth heat transfer end 42 is connected to the second end 352 of the third valve body 35, the first end 351 of the third valve body 35 is connected to the third check valve 37, and the third check valve 37 is connected to the first throttling device 39.

[0042] The fourth check valve 38 is disposed on the connection path between the third end 343 of the second valve body 34 and the third end 353 of the third valve body 35. The fourth end 334 of the first valve body 33 is connected to the connection path between the first check valve 31 and the first compressor 32.

[0043] When the first end 331 and the third end 333 of the first valve body 33 are in communication, and the first end 341 and the second end 342 of the second valve body 34 are in communication, a first circulation loop is formed among the first heat exchanger 2, the first check valve 31, the first compressor 32, the first valve body 33, the heat exchange unit 39a, the second check valve 36, the first throttling device 39, and the second valve body 34. As Figure 3 shown, the heat source mechanism 1 transfers heat energy to the heat transfer mechanism 3 through the first heat exchanger 2, and the heat transfer mechanism 3 provides heat energy to the heat exchange unit 39a through the first circulation loop. Among them, the first compressor 32 provides the circulation power for the first circulation loop.

[0044] Please refer to Figure 3 , the flow path of the refrigerant in the first circulation loop is as follows: the first heat exchanger 2 → the first check valve 31 → the first compressor 32 → the first end 331 of the first valve body 33 → the third end 333 of the first valve body 33 → the heat exchange unit 39a → the second check valve 36 → the first throttling device 39 → the second end 342 of the second valve body 34 → the first end 341 of the second valve body 34 → the first heat exchanger 2.

[0045] Please refer to again Figure 1 and Figure 2, in some embodiments, the heat source mechanism 1 includes an evaporator 11, a second throttling device 13, and a second compressor 12. The second compressor 12, the first heat transfer end 21 of the first heat exchanger 2, the second heat transfer end 22 of the first heat exchanger 2, the second throttling device 13, and the evaporator 11 are connected in sequence to form a heating circulation loop, and heat is transferred within the heating circulation loop by means of a refrigerant. The heat circulation loop becomes the following path: evaporator 11 → second compressor 12 → first heat transfer end 21 of the first heat exchanger 2 → second heat transfer end 22 of the first heat exchanger 2 → second throttling device 13 → evaporator 11. Among them, the second compressor 12 provides power for the heat circulation loop.

[0046] Please refer to again Figure 4 , when the first end 331 and the second end 332 of the first valve body 33 are connected, the second end 352 and the first end 351 of the third valve body 35 are connected, and the first end 341 and the second end 342 of the second valve body 34 are connected, a second circulation loop is formed among the first heat exchanger 2, the first one-way valve 31, the first compressor 32, the first valve body 33, the second heat exchanger 4, the third valve body 35, the third one-way valve 37, the first throttling device 39, and the second valve body 34. The heat source mechanism 1 is used to provide heat energy to the heat storage mechanism 5 through the second circulation loop.

[0047] For the second circulation loop, the heat source mechanism 1 transfers heat energy to the heat transfer mechanism 3 through the first heat exchanger 2, the heat transfer mechanism 3 provides heat energy to the heat storage mechanism 5 through the second circulation loop, and the heat storage mechanism 5 stores the absorbed heat energy. Among them, the first compressor 32 provides circulating power for the second circulation loop. It can be understood that: the heat source mechanism 1 is the first-stage compression, the heat transfer mechanism 3 is the second-stage compression, forming a cascade compression to reach a higher temperature, and then stored in the heat storage mechanism 5.

[0048] It should be noted that in the drawings of the circulation loop in this application, only the components through which the refrigerant flows are shown. Exemplarily, please refer to Figure 2 , when Figure 2 the shown heating system 100 executes the first circulation loop, the refrigerant does not flow through the second heat exchanger 4. Therefore, Figure 3 the second heat exchanger 4 is omitted in the schematic diagram of the flow path of the refrigerant in the shown first circulation loop, and the same is true for other components and other circulation loops. It should be noted that for the pipelines in the heating system 100 that do not participate in a certain circulation loop, control is achieved through valves to realize the operation of the corresponding circulation loop. For example, in the second circulation loop, the pipeline formed between the third end 333 of the first valve body 33 and the second one-way valve 36 can be controlled by setting a control valve to realize the operation of this situation.

[0049] Please refer to Figure 4, the flow path of the refrigerant in the second circulation loop is as follows: the first heat exchanger 2 → the first one-way valve 31 → the first compressor 32 → the first end 331 of the first valve body 33 → the second end 332 of the first valve body 33 → the second heat exchanger 4 → the second end 352 of the third valve body 35 → the first end 351 of the third valve body 35 → the third one-way valve 37 → the first throttling device 39 → the second end 342 of the second valve body 34 → the first end 341 of the second valve body 34 → the first heat exchanger 2.

[0050] Please refer to Figure 2 , in some embodiments, the heat storage mechanism 5 includes a circulation pump 51 and a heat preservation device 52. The third heat outlet end 43 of the second heat exchanger 4, the circulation pump 51, the heat preservation device 52, and the fourth heat outlet end 44 of the second heat exchanger 4 are connected to form a heat storage circulation loop. Among them, a heat storage medium is provided in the heat preservation device 52, and the heat storage circulation loop delivers heat to the heat preservation device 52, and the heat storage medium in the heat preservation device 52 is heated up to store heat energy. The flow path of the heat storage medium in the heat storage circulation loop is as follows: the heat preservation device 52 → the circulation pump 51 → the third heat outlet end 43 → the fourth heat outlet end 44 → the heat preservation device 52.

[0051] When the heat storage mechanism 5 supplies heat to the heat exchange unit 39a, the heat storage circulation loop absorbs the heat stored in the heat preservation device 52, and the heat storage medium in the heat preservation device 52 cools down to release heat energy.

[0052] In some embodiments, the medium flowing in the heat storage circulation loop is but not limited to water. At the same time, the circulation pump 51 is a circulating water pump, and the second heat exchanger 4 is a water-refrigerant heat exchanger. In other embodiments, the medium flowing in the heat storage circulation loop can also be other molten salts or other heat storage media.

[0053] In some embodiments, the heat preservation device 52 is a heat preservation water tank, and at the same time, the medium provided in the heat preservation water tank is water.

[0054] Please refer to again Figure 5 , when the second end 332 of the first valve body 33 is connected to the fourth end 334 of the first valve body 33, the fourth end 334 of the first valve body 33 is connected to the inlet end of the first compressor 32, the outlet end of the first compressor 32 is connected to the first end 331 of the first valve body 33, the first end 331 of the first valve body 33 is connected to the third end 333 of the first valve body 33, and the third end 343 of the second valve body 34 is connected to the second end 342 of the second valve body 34, and the second end 352 of the third valve body 35 is connected to the third end 353 of the third valve body 35, a third circulation loop is formed among the second heat exchanger 4, the first valve body 33, the first compressor 32, the heat exchange unit 39a, the second one-way valve 36, the first throttling device 39, the second valve body 34, the fourth one-way valve 38, and the third valve body 35. The heat storage mechanism 5 is used to provide heat energy to the heat exchange unit 39a through the third circulation loop.

[0055] For the above-mentioned third cycle loop, the heat storage mechanism 5 transfers thermal energy to the heat transfer mechanism 3 through the second heat exchanger 4, and the heat transfer mechanism 3 provides thermal energy to the heat exchange unit 39a through the third cycle loop.

[0056] Please refer to again Figure 5 , the flow path of the refrigerant in the third cycle loop is as follows: the second heat exchanger 4 → the second end 332 of the first valve body 33 → the fourth end 334 of the first valve body 33 → the first compressor 32 → the first end 331 of the first valve body 33 → the third end 333 of the first valve body 33 → the heat exchange unit 39a → the second one-way valve 36 → the first throttling device 39 → the second end 342 of the second valve body 34 → the third end 343 of the second valve body 34 → the fourth one-way valve 38 → the third end 353 of the third valve body 35 → the second end 352 of the third valve body 35 → the second heat exchanger 4.

[0057] Please refer to again Figure 2 , in some embodiments, the directions in which the third one-way valve 37 and the fourth one-way valve 38 allow passage are opposite. Therefore, for the above-mentioned second cycle loop, when the refrigerant flows through the third valve body 35, the refrigerant flows through the first throttling device 39 through the first end 351 of the third valve body 35. Since the direction in which the fourth one-way valve 38 allows the refrigerant to pass is opposite to that of the third one-way valve 37, the bypass pipeline can be closed. At the same time, the refrigerant can also flow through the first throttling device 39, and the flow rate of the refrigerant can be controlled through the first throttling device 39, so as to achieve cascade compression, that is, the pressure of the refrigerant can be increased through double compression.

[0058] Please refer to Figure 2 , in some embodiments, the directions in which the second one-way valve 36 and the third one-way valve 37 allow passage are opposite. Therefore, when the refrigerant flows outwards from the second one-way valve 36, the refrigerant can only flow towards the first throttling device 39 and cannot flow towards the third one-way valve 37, so that the refrigerant in both the first cycle loop and the third cycle loop can flow through the first throttling device 39, and the pressure of the refrigerant can be increased through double compression.

[0059] Please refer to Figure 2 , in some embodiments, when the user needs hot air, the heat exchange unit 39a is an air-cooled heat exchanger. Through the action of a fan, the heat on the air-cooled heat exchanger is converted into hot air and then delivered to the user who needs hot air. When the user needs hot water / other heat sources, the heat exchange unit 39a is a plate heat exchanger or a shell-and-tube heat exchanger. Through the action of a water pump or other power sources, the heat exchange medium is exchanged heat with the heat exchange unit 39a, and the required heat source is output.

[0060] In some embodiments, the first valve body 33 is a four-way valve so that the first valve body 33 has four ports.

[0061] In some embodiments, the second valve body 34 is a four-way valve, so that the second valve body 34 has four ports.

[0062] In some embodiments, the second valve body 34 is a three-way valve, so that the second valve body 34 has three ports.

[0063] In some embodiments, the third valve body 35 is a four-way valve, so that the third valve body 35 has four ports.

[0064] In some embodiments, the third valve body 35 is a three-way valve, so that the third valve body 35 has three ports.

[0065] In some embodiments, the first valve body 33, the second valve body 34 and the third valve body 35 are all solenoid valves.

[0066] In some embodiments, the first valve body 33, the second valve body 34 and the third valve body 35 can also be all manual valves. The on-off of each port of the first valve body 33, the second valve body 34 and the third valve body 35 is manually controlled by humans, or in the form of multiple valves and pipelines to achieve the above technical content.

[0067] In some embodiments, a part of the first valve body 33, the second valve body 34 and the third valve body 35 is a solenoid valve, and the other part is a manual valve.

[0068] In summary, the heating system 100 includes a heat source mechanism 1, a first heat exchanger 2, a heat transmission mechanism 3, a second heat exchanger 4 and a heat storage mechanism 5. The first heat exchanger 2 includes a first heat transmission end 21, a first heat output end 23 and a second heat output end 24. The first heat transmission end 21 is connected to the heat source mechanism 1, and the heat energy generated by the heat source mechanism 1 is transported to the first heat exchanger 2. The heat transmission mechanism 3 is respectively connected to the first heat output end 23 and the second heat output end 24, so that the heat transmission mechanism 3 absorbs the heat generated by the heat source mechanism 1 through the first heat exchanger 2. The heat transmission mechanism 3 is used to output heat energy to the outside. The second heat exchanger 4 has a third heat transmission end 41, a fourth heat transmission end 42, a third heat output end 43 and a fourth heat output end 44. Both the third heat transmission end 41 and the fourth heat transmission end 42 are connected to the heat transmission mechanism 3, and the heat transmission mechanism 3 can transport heat to the second heat exchanger 4. The heat storage mechanism 5 is respectively connected to the third heat output end 43 and the fourth heat output end 44 of the second heat exchanger 4, so that the heat storage mechanism 5 can exchange heat with the heat transmission mechanism 3 through the second heat exchanger 4. Therefore, the heat source mechanism 1 is used to provide heat energy to the heat transmission mechanism 3 or to the heat storage mechanism 5. The heat storage mechanism 5 is used to receive and store the heat energy provided by the heat source mechanism 1 or to provide heat energy to the heat transmission mechanism 3. Therefore, when the electricity price is low at night, the heat source mechanism 1 is started, and the heat generated by the heat source mechanism 1 is stored in the heat storage mechanism 5. During the day, the heat stored in the heat storage mechanism 5 is transported to the heat transmission mechanism 3 and provided to the outside, which can reduce the operating cost of the heating system 100.

[0069] It should be noted that the description and drawings of the present invention provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments do not serve as additional limitations to the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Moreover, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as within the scope described in the description of the present invention. Further, for those of ordinary skill in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of the present invention.

Claims

1. A heating system, characterized in that, comprising: a heat source mechanism; a first heat exchanger having a first heat transfer end, a first heat outlet end and a second heat outlet end, wherein the first heat transfer end is connected to the heat source mechanism; a heat transfer mechanism respectively connected to the first heat outlet end and the second heat outlet end, and the heat transfer mechanism is used for outputting heat energy to the outside; a second heat exchanger having a third heat transfer end, a fourth heat transfer end, a third heat outlet end and a fourth heat outlet end, wherein both the third heat transfer end and the fourth heat transfer end are connected to the heat transfer mechanism; a heat storage mechanism respectively connected to the third heat outlet end and the fourth heat outlet end; wherein, the heat source mechanism is used for providing heat energy to the heat transfer mechanism or providing heat energy to the heat storage mechanism, and the heat storage mechanism is used for receiving and storing the heat energy provided by the heat source mechanism and / or the heat transfer mechanism or providing heat energy to the heat transfer mechanism.

2. The heating system according to claim 1, characterized in that, the heat transfer mechanism includes a first one-way valve, a first compressor, a first valve body, a heat exchange unit, a second one-way valve, a first throttling device, a second valve body, a third valve body, a third one-way valve and a fourth one-way valve; the first heat outlet end is connected to the first one-way valve, the first one-way valve is connected to the first compressor, the first compressor is connected to the first end of the first valve body, the third end of the first valve body is connected to the heat exchange unit, the heat exchange unit is connected to the second one-way valve, the second one-way valve is connected to the first throttling device, the first throttling device is connected to the second end of the second valve body, and the first end of the second valve body is connected to the second heat outlet end; the third heat transfer end is connected to the second end of the first valve body, the fourth heat transfer end is connected to the second end of the third valve body, the first end of the third valve body is connected to the third one-way valve, and the third one-way valve is connected to the first throttling device; the fourth one-way valve is arranged on the connection path between the third end of the second valve body and the third end of the third valve body; the fourth end of the first valve body is connected to the connection path between the first one-way valve and the first compressor.

3. The heating system according to claim 2, characterized in that, when the first end and the third end of the first valve body are communicated, and the first end and the second end of the second valve body are communicated, a first circulation loop is formed among the first heat exchanger, the first one-way valve, the first compressor, the first valve body, the heat exchange unit, the second one-way valve, the first throttling device and the second valve body, and the heat source mechanism is used for providing heat energy to the heat exchange unit through the first circulation loop.

4. The heating system according to claim 2, characterized in that, When the first end and the second end of the first valve body are in communication, the second end and the first end of the third valve body are in communication, and the first end and the second end of the second valve body are in communication, a second circulation loop is formed among the first heat exchanger, the first check valve, the first compressor, the first valve body, the second heat exchanger, the third valve body, the third check valve, the first throttling device and the second valve body, and the heat source mechanism is configured to provide heat energy to the heat storage mechanism through the second circulation loop.

5. The heating system according to claim 2, wherein, when the second end and the fourth end of the first valve body are in communication, the fourth end and the first end of the first valve body are in communication, the fourth end of the first valve body is connected to the inlet end of the first compressor, the outlet end of the first compressor is in communication with the first end of the first valve body, the first end of the first valve body is in communication with the third end of the first valve body, the third end and the second end of the second valve body are in communication, and the second end and the third end of the third valve body are in communication, a third circulation loop is formed among the second heat exchanger, the first valve body, the heat exchange unit, the second check valve, the first throttling device, the second valve body, the fourth check valve and the third valve body, and the heat storage mechanism is configured to provide heat energy to the heat exchange unit through the third circulation loop.

6. The heating system according to claim 2, wherein, the directions in which the third check valve and the fourth check valve allow passage are opposite; the directions in which the second check valve and the third check valve allow passage are opposite.

7. The heating system according to any one of claims 1-6, wherein, the heat storage mechanism includes a circulation pump and a heat preservation device, and the third heat output end, the circulation pump, the heat preservation device and the fourth heat output end are in communication to form a heat storage circulation loop.

8. The heating system according to claim 7, wherein, the heat preservation device is a heat preservation water tank.

9. The heating system according to any one of claims 1-6, wherein, the heat source mechanism includes an evaporator, a second compressor and a second throttling device, and the second compressor, the first heat transmission end, the second heat transmission end, the second throttling device and the evaporator are sequentially in communication to form a heating circulation loop.

10. The heating system according to any one of claims 2-6, wherein, the heat exchange unit is an air-cooled heat exchanger.

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