Hot water supply system with double energy sources
Through the switching of the air source heat pump and gas heat source machine of the dual energy system, the high cost and high carbon emission problems of traditional hot water supply systems are solved, and efficient water supply under different conditions is achieved.
Patent Information
- Application Number
- CN202510616241.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2025-08-08
AI Technical Summary
Traditional hot water supply systems have problems such as high operating costs, high carbon emissions and insufficient water supply, especially under high load or low temperature conditions, which are difficult to effectively solve.
The dual energy system is adopted, combining an air source heat pump and a gas heat source machine, and the energy use is switched under different loads and temperature conditions through the control device to ensure efficient water supply, and priority is given to the use of an air source heat pump at low loads, and the gas heat source machine is enabled at high loads or low temperatures.
It achieves balancing operating costs under different load and temperature conditions, reducing carbon emissions, and ensuring uninterrupted water supply, avoiding the high cost and high carbon emission problems brought by a single energy source.
Smart Images
Figure CN120444757A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of heating appliances, and in particular to a hot water supply system with dual energy sources. Background Art
[0002] Traditional hot water supply systems typically rely on a single energy source, such as gas water heaters, electric water heaters, or solar water heaters. Electric water heaters use electricity as their energy source, converting it into heat to heat the water. However, electricity is expensive, leading to high operating costs over the long term. Furthermore, the heating rate is limited, and if multiple people use hot water continuously, the hot water supply may be insufficient. Gas water heaters use natural gas as their energy source, but pure gas systems have high carbon emissions. Solar water heaters rely on solar energy to heat the water, but their use is significantly affected by weather, their installation locations are limited, and the initial investment is high. Therefore, with the increasing demand for energy conservation and emission reduction, the development of an efficient, environmentally friendly, and economical dual-energy hot water supply system has become an urgent need. Summary of the Invention
[0003] The purpose of the present invention is to provide a hot water supply system with dual energy sources for energy conservation and emission reduction.
[0004] In order to achieve the above object, the present invention adopts the following technical solutions:
[0005] The present invention discloses a hot water supply system with dual energy sources, comprising a chassis, a water storage tank, a first three-way pipe and a second three-way pipe, a gas heat source machine is arranged on the top of the chassis, an air source heat pump and a control device are arranged on the bottom, the control device signal connects the gas heat source machine and the air source heat pump, the cold water outlet of the water storage tank is connected to the water inlets of the gas heat source machine and the air source heat pump through the first three-way pipe, and a circulating pump is arranged on the part of the first three-way pipe connected to the water inlets of the gas heat source machine and the air source heat pump, the water outlets of the gas heat source machine and the air source heat pump are connected to the hot water inlet of the water storage tank through the second three-way pipe, and the water storage tank is also provided with a cold water inlet and a hot water outlet.
[0006] As a preferred technical solution, the water storage tank is also provided with a safety valve pressure relief port and a water tank sewage outlet.
[0007] As a preferred technical solution, the gas inlet of the gas heat source machine is connected to a gas pipeline extending out of the chassis, and a gas proportional valve is provided on the gas pipeline.
[0008] As a preferred technical solution, a filter valve, a one-way valve and a water flow sensor are also provided on the part of the first three-way pipe connected to the water inlet of the gas heat source machine and the air source heat pump, and the filter valve is closest to the water tank.
[0009] As a preferred technical solution, a control panel is further provided on the outer side wall of the chassis, and the control panel is signal-connected to the control device.
[0010] As a preferred technical solution, a smoke exhaust pipe is further provided on the top of the chassis, and the smoke exhaust pipe is connected to the top of the gas heat source machine.
[0011] As a preferred technical solution, a temperature detector is provided in the water tank, and the temperature detector signal is connected to the control device.
[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: the hot water supply system of the present invention has dual energy sources, and the air source heat pump is used preferentially at low load, and gas is enabled at high load or low temperature, which can balance the operating costs. At the same time, the dual energy sources back up each other, which can ensure uninterrupted water supply and avoid the problem of excessive carbon emissions when only gas is used as energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The working principle diagram of the present invention is shown.
[0014] Figure 2 Shows the overall structural diagram of the present invention.
[0015] Figure 3 The internal structure diagram of the chassis of the present invention is shown.
[0016] Legend: 1. Chassis; 2. Water tank; 3. First tee; 4. Second tee; 5. Gas heat source unit; 6. Air source heat pump; 7. Control device; 8. Circulation pump; 9. Safety valve pressure relief port; 10. Water tank drain outlet; 11. Gas pipeline; 12. Filter valve; 13. Check valve; 14. Water flow sensor; 15. Control panel; 16. Smoke exhaust pipe; 17. Temperature detector; 18. Gas proportional valve. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] The present invention will be further described below with reference to the accompanying drawings. It should be understood that in the description of the present invention, terms such as "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer" indicating directions or positions are based on the directions or positions shown in the accompanying drawings and are intended solely to facilitate description and simplify the present invention. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention.
[0019] Example 1
[0020] like Figure 1-3 The embodiment shown provides a hot water supply system with dual energy sources, including a chassis 1, a water tank 2, a first three-way pipe 3 and a second three-way pipe 4. The water tank 2 adopts an upper and lower layered structure, the upper layer is a hot water area, and the lower layer is a cold water area. The water tank 2 of this type of structure is very mature in the prior art, so its internal structure is not shown in the drawings of this application. A gas heat source machine 5 is provided at the top of the chassis 1, and an air source heat pump 6 and a control device 7 are provided at the bottom. It should be noted that the gas heat source machine 5 and the air source heat pump 6 are very mature in the prior art, so their working principles and detailed structures are not described here. The control device 7 signal connects the gas heat source machine 5 and the air source heat pump 6, and the control device 7 controls the gas heat source The start, stop and switch of the machine 5 and the air source heat pump 6, the cold water outlet of the water tank 2 is connected to the water inlet of the gas heat source machine 5 and the air source heat pump 6 through the first three-way pipe 3, and a circulation pump 8 is provided on the part of the first three-way pipe 3 connected to the water inlet of the gas heat source machine 5 and the air source heat pump 6. When hot water is needed, the circulation pump 8 pumps the cold water in the water tank 2 into the gas heat source machine 5 or the heat exchanger of the air source heat pump 6 through the first three-way pipe 3 for heating, and the water outlet of the gas heat source machine 5 and the air source heat pump 6 is connected to the hot water inlet of the water tank 2 through the second three-way pipe 4, and the hot water then enters the water tank 2 through the second three-way pipe 4 for storage. The water tank 2 is also provided with a cold water inlet and a hot water outlet for entering cold water and discharging hot water to the water use end.
[0021] The working principle of this embodiment is as follows:
[0022] After installing the hot water supply system, the user first obtains the local peak power consumption and off-peak power consumption periods, inputs the off-peak power consumption period into the control device 7, and sets the ambient temperature threshold. In this embodiment, the ambient temperature threshold is 5°C. The basis for setting the threshold is that when the ambient temperature is lower than 5°C, the efficiency of the air source heat pump 6 will decrease. When hot water is needed, the control device 7 judges the power consumption period and the ambient temperature. If it is in the off-peak power consumption period and the ambient temperature is higher than the threshold, the electricity cost is relatively low, and the control device 7 controls the air source heat pump 6 to heat the water alone; if it is in the peak power consumption period and the ambient temperature is higher than the threshold, the electricity cost is relatively high, and the control device 7 controls the air source heat pump 6 to heat the water alone. The control device 7 controls the gas heat source machine 5 alone to heat the water; if it is in the off-peak electricity consumption period but the ambient temperature is lower than the threshold, the efficiency of the air source heat pump 6 decreases. Although the electricity cost is not high, the heating efficiency of the air source heat pump 6 alone is relatively low. Therefore, the control device 7 controls the air source heat pump 6 and the gas heat source machine 5 to work at the same time; if it is in the peak electricity consumption period and the ambient temperature is lower than the threshold, the electricity cost is high and the efficiency of the air source heat pump 6 is not high, then the control device 7 controls the gas heat source machine 5 alone to work; finally, if it is the peak water consumption period, the control device 7 controls the air source heat pump 6 and the gas heat source machine 5 to work at the same time, and the dual energy can quickly increase the water temperature.
[0023] Example 2
[0024] like Figure 1-3 As shown, this embodiment is developed based on the above embodiment to address the safety issues in the use of the water tank 2. Specifically, the water tank 2 is further provided with a safety valve pressure relief port 9 and a water tank sewage outlet 10. When the pressure in the water tank 2 exceeds the pressure value set by the safety valve, the safety valve pressure relief port 9 opens, releasing the excess pressure through the safety valve pressure relief port 9, thereby preventing the water tank from rupturing, exploding, or other dangerous situations due to excessive pressure. The water tank sewage outlet 10 is used for sewage discharge.
[0025] Example 3
[0026] like Figure 1-3 As shown, this embodiment is developed based on the above embodiment to solve the problem of the gas source of the gas heat source machine 5. Specifically, the gas inlet of the gas heat source machine 5 is connected to a gas pipeline 11 extending from the outside of the chassis 1. The gas pipeline 11 is provided with a gas proportional valve 18. Gas enters the gas heat source machine 5 from the gas pipeline 11, and the gas proportional valve 18 is used to adjust the gas intake.
[0027] Example 4
[0028] like Figure 1-3As shown, this embodiment is developed on the basis of the above embodiments to solve the problem of gas source of the gas heat source machine 5. Specifically, a filter valve 12, a one-way valve 13 and a water flow sensor 14 are further provided on the portion of the first three-way pipe 3 connecting the gas heat source machine 5 and the water inlet of the air source heat pump 6, and the filter valve 12 is closest to the water storage tank 2. The filter valve 12 is mainly used to intercept impurities in the cold water inlet, the one-way valve 13 prevents water backflow, and the water flow sensor 14 is used to detect the water flow in the first three-way pipe 3. When the water flow sensor 14 on the portion connecting the first three-way pipe 3 and the air source heat pump 6 detects that the water flow is particularly large, it indicates that there is a large demand for water. The control device 7 can control the gas heat source machine 5 to start, avoiding the situation where the air source heat pump 6 alone cannot meet the large water demand.
[0029] Example 5
[0030] like Figure 1-3 As shown, this embodiment is developed based on the above embodiment to solve the problem of how the user operates the control device 7. Specifically, a control panel 15 is further provided on the outer wall of the chassis 1. The control panel 15 is signal-connected to the control device 7. Control commands can be input to the control device 7 through the control panel 15.
[0031] Example 6
[0032] like Figure 1-3 As shown, this embodiment is developed on the basis of the above embodiment in order to solve the smoke exhaust problem of the gas heat source machine 5. Specifically, a smoke exhaust pipe 16 is also provided on the top of the chassis 1. The smoke exhaust pipe 16 is connected to the top of the gas heat source machine 5, and the smoke generated by the gas heat source machine 5 is discharged from the smoke exhaust pipe 16.
[0033] Example 7
[0034] like Figure 1-3 As shown, this embodiment is developed based on the above embodiment to solve the problem of heat preservation of the water tank 2. Specifically, a temperature detector 17 is provided in the water tank 2, and the signal of the temperature detector 17 is connected to the control device 7. A temperature threshold is set in the temperature detector 17. When the actual water temperature detected by the temperature detector 17 is lower than the temperature threshold, the temperature detector 17 transmits a signal to the control device 7. The control device 7 then controls the gas heat source machine 5 or the air source heat pump 6 in the chassis 1 to heat the water, and stops when the temperature threshold is reached.
[0035] The above description of the embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A hot water supply system with dual energy sources, characterized by: The invention comprises a case (1), a water storage tank (2), a first three-way pipe (3) and a second three-way pipe (4); a gas heat source machine (5) is arranged at the top of the case (1), an air source heat pump (6) and a control device (7) are arranged at the bottom; the control device (7) is connected to the gas heat source machine (5) and the air source heat pump (6) by signal; the cold water outlet of the water storage tank (2) is connected to the water inlets of the gas heat source machine (5) and the air source heat pump (6) through the first three-way pipe (3); a circulating pump (8) is arranged on the portion of the first three-way pipe (3) connected to the water inlets of the gas heat source machine (5) and the air source heat pump (6); the water outlets of the gas heat source machine (5) and the air source heat pump (6) are connected to the hot water inlet of the water storage tank (2) through the second three-way pipe (4); and the water storage tank (2) is also provided with a cold water inlet and a hot water outlet.
2. The dual energy hot water supply system according to claim 1, characterized in that: The water storage tank (2) is also provided with a safety valve pressure relief port (9) and a water tank sewage outlet (10).
3. The dual energy hot water supply system according to claim 1, characterized in that: The gas inlet of the gas heat source machine (5) is connected to a gas pipeline (11) extending outside the machine box (1), and a gas proportional valve (18) is provided on the gas pipeline (11).
4. The dual energy hot water supply system according to claim 1, characterized in that: A filter valve (12), a one-way valve (13) and a water flow sensor (14) are also provided on the portion of the first three-way pipe (3) connected to the gas heat source machine (5) and the water inlet of the air source heat pump (6), and the filter valve (12) is closest to the water storage tank (2).
5. The dual energy hot water supply system according to claim 1, characterized in that: A control panel (15) is also provided on the outer side wall of the chassis (1), and the control panel (15) is signal-connected to the control device (7).
6. The dual energy hot water supply system according to claim 1, characterized in that: A smoke exhaust pipe (16) is also provided on the top of the chassis (1), and the smoke exhaust pipe (16) is connected to the top of the gas heat source machine (5).
7. The dual energy hot water supply system according to claim 1, characterized in that: A temperature detector (17) is provided in the water storage tank (2), and a signal of the temperature detector (17) is connected to the control device (7).