Combined hydraulic heating system

Abstract

The utility model relates to the technical field of hydraulic heating equipment, in particular to a combined hydraulic heating system. The combined hydraulic heating system comprises a heat pump, an auxiliary heat source, tail end hot water using equipment, a water tank and a hydraulic adjusting assembly. The heat pump, the auxiliary heat source, the tail end hot water using device and the water tank are connected with the hydraulic adjusting assembly. The hydraulic adjusting assembly is used for enabling the heat pump and the auxiliary heat source to provide hot water for the tail end hot water using equipment or the water tank. The combined hydraulic heating system can be effectively compatible with a heat pump and other auxiliary heat sources, and the heating requirement in the low-temperature environment can be better met.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic heating equipment technology, and in particular to a combined hydraulic heating system. Background Technology

[0002] Currently, most heat pump hydrothermal heating systems on the market for Europe use only a single heat supply device, such as a heat pump, to meet the needs of space heating, cooling, and domestic hot water. In Europe, many existing buildings actually use gas-fired boilers for heating, and existing heat pump hydrothermal heating systems do not consider the use of existing boilers to better meet the heating needs in low-temperature environments.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a combined hydraulic heating system, which aims to improve the heating effect of heat pump hydraulic heating system in low-temperature environments.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A combined hydraulic heating system includes a heat pump, an auxiliary heat source, terminal hot water usage devices, a water tank, and a hydraulic regulating component; the heat pump, auxiliary heat source, terminal hot water usage devices, and water tank are respectively connected to the hydraulic regulating component; the hydraulic regulating component is used to enable the heat pump and auxiliary heat source to provide hot water to the terminal hot water usage devices or the water tank.

[0007] The combined hydraulic heating system includes a hydraulic regulating component comprising an electric three-way valve and a main outlet pipe, a first outlet pipe, and a second outlet pipe connected to the electric three-way valve; the outlets of the heat pump and the auxiliary heat source are respectively connected to the main outlet pipe; the first outlet pipe is connected to the inlet of the water tank; the second outlet pipe is connected to the inlet of the terminal hot water user device; and a return pipe is also included, the inlet of which is connected to both the terminal hot water user device and the outlet of the water tank; the outlet of which is connected to both the heat pump and the auxiliary heat source.

[0008] In the combined hydraulic heating system, the outlet of the heat pump is connected to the main outlet pipe via a first branch pipe; the inlet of the heat pump is connected to the return pipe via a second branch pipe; the outlet of the auxiliary heat source is connected to the main outlet pipe via a third branch pipe; and the inlet of the auxiliary heat source is connected to the return pipe via a fourth branch pipe.

[0009] The combined hydraulic heating system further includes a first temperature sensor, a second temperature sensor, a third temperature sensor, and a fourth temperature sensor respectively installed on the first branch pipe, the second branch pipe, the third branch pipe, and the fourth branch pipe; it also includes a first calorimeter and a second calorimeter; the two ends of the first calorimeter are respectively connected to the first temperature sensor and the second temperature sensor; the two ends of the second calorimeter are respectively connected to the third temperature sensor and the fourth temperature sensor.

[0010] The combined hydraulic heating system, wherein the first branch pipe is equipped with a first shut-off valve, a first check valve, a flow switch, an auxiliary electric heater and a first temperature sensor from upstream to downstream.

[0011] In the aforementioned combined hydraulic heating system, the second branch pipe is equipped with a variable frequency water pump, a second temperature sensor, and a second shut-off valve from upstream to downstream.

[0012] In the aforementioned combined hydraulic heating system, the third branch pipe is equipped with a third shut-off valve, a second check valve, and a third temperature sensor from upstream to downstream.

[0013] In the aforementioned combined hydraulic heating system, a fourth temperature sensor and a fourth shut-off valve are installed on the fourth branch pipe from upstream to downstream.

[0014] The combined hydraulic heating system, wherein the return water pipe is equipped with a magnetic mud filter, a Y-type filter and an expansion tank from upstream to downstream.

[0015] The combined hydraulic heating system includes a fifth shut-off valve at the outlet end of the first outlet pipe; a sixth shut-off valve at the outlet end of the second outlet pipe; an outlet end of the water tank connected to the return water pipe via a fifth branch pipe; a seventh shut-off valve at the inlet end of the fifth branch pipe; an outlet end of the terminal hot water user equipment connected to the return water pipe via a sixth branch pipe; and an eighth shut-off valve at the inlet end of the sixth branch pipe.

[0016] Beneficial effects: This utility model provides a combined hydraulic heating system that uses a heat pump and an auxiliary heat source together, and uses a hydraulic regulating component to control the operation of the heat pump and the auxiliary heat source, so that hot water can be flexibly provided according to actual needs, and better meet the heating needs in low-temperature environments. Attached Figure Description

[0017] Figure 1 Schematic diagram of a combined hydraulic heating system Figure 1 .

[0018] Figure 2 Schematic diagram of a combined hydraulic heating system Figure 2 .

[0019] Figure 3 Schematic diagram of a combined hydraulic heating system Figure 3 .

[0020] Figure 4 Schematic diagram of a combined hydraulic heating system Figure 4 .

[0021] Key component symbols: 1-Heat pump, 2-Auxiliary heat source, 3-End hot water user equipment, 4-Water tank, 5-Hydraulic regulating component, 51-Electric three-way valve, 52-Main outlet pipe, 53-First outlet pipe, 54-Second outlet pipe, 55-Return pipe, 56-First branch pipe, 57-Second branch pipe, 58-Third branch pipe, 59-Fourth branch pipe, 61-First temperature sensor, 62-Second temperature sensor, 63-Third temperature sensor, 64-Fourth temperature sensor, 65-First calorimeter, 6 6-Second calorimeter, 561-First shut-off valve, 562-First check valve, 563-Flow switch, 564-Auxiliary electric heater, 571-Variable frequency water pump, 572-Second shut-off valve, 581-Third shut-off valve, 582-Second check valve, 591-Fourth shut-off valve, 551-Magnetic mud filter, 552-Y-type filter, 553-Expansion tank, 531-Fifth shut-off valve, 541-Sixth shut-off valve, 71-Fifth branch pipe, 711-Seventh shut-off valve, 72-Sixth branch pipe, 721-Eighth shut-off valve. Detailed Implementation

[0022] This utility model provides a combined hydraulic heating system. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0024] Please see Figure 1 This utility model provides a combined hydraulic heating system, comprising a heat pump 1, an auxiliary heat source 2, a terminal hot water user device 3, a water tank 4, and a hydraulic regulating component 5. The heat pump 1, auxiliary heat source 2, terminal hot water user device 3, and water tank 4 are respectively connected to the hydraulic regulating component 5. The hydraulic regulating component 5 is used to enable the heat pump 1 and auxiliary heat source 2 to provide hot water to the terminal hot water user device 3 or the water tank 4. Specifically, the auxiliary heat source 2 can be a gas-fired wall-mounted boiler, and the terminal hot water user device 3 can be underfloor heating or a fan coil unit. The hydraulic regulating component 5 can select either single heat pump 1 heat output or heat pump 1 combined with auxiliary heat source 2 heat output according to user needs, and can switch to supplying the terminal hot water user device 3 (space heating mode) or supplying the water tank 4 (hot water production mode) according to user needs, realizing the linkage control of multiple energy sources and multiple heat terminals to meet heating needs in low-temperature environments.

[0025] Please see Figure 2 In one embodiment, the hydraulic regulating component 5 includes an electric three-way valve 51 and a main outlet pipe 52, a first outlet pipe 53, and a second outlet pipe 54 connected to the electric three-way valve 51; the outlet ends of the heat pump 1 and the auxiliary heat source 2 are respectively connected to the main outlet pipe 52; the first outlet pipe 53 is connected to the inlet end of the water tank 4; the second outlet pipe 54 is connected to the inlet end of the terminal hot water user device 3; it also includes a return pipe 55, the inlet end of which is connected to the outlet ends of the terminal hot water user device 3 and the water tank 4 respectively; the outlet end of the return pipe 55 is connected to the inlet ends of the heat pump 1 and the auxiliary heat source 2 respectively. In this embodiment, the heat pump 1 and the auxiliary heat source 2 are connected in parallel through the hydraulic regulating component 5. The combined hydraulic heating system also includes a control device, which is electrically connected to the heat pump 1, the auxiliary heat source 2, and the electric three-way valve 51. When space heating is required, the control device controls the electric three-way valve 51 to connect the main outlet pipe 52 with the second outlet pipe 54; when hot water is required from the water tank 4, the control device controls the electric three-way valve 51 to connect the main outlet pipe 52 with the first outlet pipe 53. In addition, the control device can also control the operation of the heat pump 1 and the auxiliary heat source 2 as needed.

[0026] Please see Figure 2 In one embodiment, the outlet of the heat pump 1 is connected to the main outlet pipe 52 via a first branch pipe 56; the inlet of the heat pump 1 is connected to the return pipe 55 via a second branch pipe 57; the outlet of the auxiliary heat source 2 is connected to the main outlet pipe 52 via a third branch pipe 58; and the inlet of the auxiliary heat source 2 is connected to the return pipe 55 via a fourth branch pipe 59.

[0027] Please see Figure 2In one embodiment, the combined hydraulic heating system further includes a first temperature sensor 61, a second temperature sensor 62, a third temperature sensor 63, and a fourth temperature sensor 64 respectively installed on the first branch pipe 56, the second branch pipe 57, the third branch pipe 58, and the fourth branch pipe 59; it also includes a first calorimeter 65 and a second calorimeter 66; the two ends of the first calorimeter 65 are respectively connected to the first temperature sensor 61 and the second temperature sensor 62; the two ends of the second calorimeter 66 are respectively connected to the third temperature sensor 63 and the fourth temperature sensor 64. The first temperature sensor 61 and the second temperature sensor 62 are used to detect the outlet water temperature and the inlet water temperature of the heat pump 1, respectively. The third temperature sensor 63 and the fourth temperature sensor 64 are used to detect the outlet water temperature and the inlet water temperature of the auxiliary heat source 2, respectively. The calorimeters can calculate the heat provided by the equipment by calculating the temperature difference between the inlet and outlet water. The first calorimeter 65 and the second calorimeter 66 can be communicatively or electrically connected to a control device. By setting up a first calorimeter 65 and a second calorimeter 66 to monitor the heat output of heat pump 1 and auxiliary heat source 2, the combined hydraulic heating system can select to operate heat pump 1 alone or heat pump 1 and auxiliary heat source 2 together according to user needs and preset programs.

[0028] Please see Figure 3 In one embodiment, the first branch pipe 56 is equipped with a first shut-off valve 561, a first check valve 562, a flow switch 563, an auxiliary electric heater 564, and a first temperature sensor 61 from upstream to downstream. The first check valve 562 is used to prevent water from flowing back into the heat pump 1. The auxiliary electric heater 564 is used to further heat the water output from the heat pump 1.

[0029] Please see Figure 3 In one embodiment, the second branch pipe 57 is equipped with a variable frequency water pump 571, a second temperature sensor 62 and a second shut-off valve 572 from upstream to downstream.

[0030] Please see Figure 3 In one embodiment, the third branch pipe 58 is equipped with a third shut-off valve 581, a second check valve 582, and a third temperature sensor 63 from upstream to downstream. The second shut-off valve 572 is used to prevent water from flowing back to the auxiliary heat source 2.

[0031] Please see Figure 3 In one embodiment, a fourth temperature sensor 64 and a fourth shut-off valve 591 are provided on the fourth branch pipe 59 from upstream to downstream.

[0032] Specifically, each of the aforementioned shut-off valves, flow switch 563, and auxiliary electric heater 564 is electrically connected to the control device. Thus, the control device can control the system's operation according to a preset program. When the heat pump 1 or auxiliary heat source 2 is not in use, its inlet and outlet water can be shut off by controlling the shut-off valves.

[0033] Please see Figure 3 In one embodiment, the return water pipe 55 is equipped with a magnetic mud filter 551, a Y-type filter 552, and an expansion tank 553 from upstream to downstream. Both the Y-type filter 552 and the magnetic mud filter 551 are used to filter impurities within the pipe. The expansion tank 553 is used to buffer pressure fluctuations in the system, thereby extending the service life of system components.

[0034] Please see Figure 4 In one embodiment, a fifth shut-off valve 531 is provided at the outlet end of the first water outlet pipe 53; a sixth shut-off valve 541 is provided at the outlet end of the second water outlet pipe 54; the outlet end of the water tank 4 is connected to the return water pipe 55 through a fifth branch pipe 71; a seventh shut-off valve 711 is provided at the inlet end of the fifth branch pipe 71; the outlet end of the terminal hot water user device 3 is connected to the return water pipe 55 through a sixth branch pipe 72; and an eighth shut-off valve 721 is provided at the inlet end of the sixth branch pipe 72.

[0035] In summary, this invention, by incorporating a hydraulic regulating component 5, allows the auxiliary heat source 2, such as a gas-fired wall-mounted boiler, to be used in conjunction with the heat pump 1 for combined heating. Furthermore, the hydraulic regulating component 5 allows for more diverse applications of the heat source, such as providing hot water to the water tank 4 or other equipment. By enabling the heat pump 1 and the auxiliary heat source 2 to work together, the heat supply in low-temperature environments can be effectively improved, better meeting heating demands.

[0036] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A combined hydraulic heating system, characterized in that, It includes a heat pump, an auxiliary heat source, a terminal hot water user device, a water tank, and a hydraulic regulating component; the heat pump, auxiliary heat source, terminal hot water user device, and water tank are respectively connected to the hydraulic regulating component; the hydraulic regulating component is used to enable the heat pump and auxiliary heat source to provide hot water to the terminal hot water user device or water tank.

2. The combined hydraulic heating system according to claim 1, characterized in that, The hydraulic regulating assembly includes an electric three-way valve and a main outlet pipe, a first outlet pipe, and a second outlet pipe connected to the electric three-way valve; the outlet ends of the heat pump and the auxiliary heat source are respectively connected to the main outlet pipe; the first outlet pipe is connected to the inlet end of the water tank; the second outlet pipe is connected to the inlet end of the terminal hot water user device; it also includes a return water pipe, the inlet end of which is connected to the outlet ends of the terminal hot water user device and the water tank; the outlet end of the return water pipe is connected to the inlet ends of the heat pump and the auxiliary heat source.

3. The combined hydraulic heating system according to claim 2, characterized in that, The outlet of the heat pump is connected to the main outlet pipe through a first branch pipe; the inlet of the heat pump is connected to the return water pipe through a second branch pipe; the outlet of the auxiliary heat source is connected to the main outlet pipe through a third branch pipe; and the inlet of the auxiliary heat source is connected to the return water pipe through a fourth branch pipe.

4. The combined hydraulic heating system according to claim 3, characterized in that, It also includes a first temperature sensor, a second temperature sensor, a third temperature sensor, and a fourth temperature sensor respectively installed on the first branch pipe, the second branch pipe, the third branch pipe, and the fourth branch pipe; it also includes a first calorimeter and a second calorimeter; the two ends of the first calorimeter are respectively connected to the first temperature sensor and the second temperature sensor; the two ends of the second calorimeter are respectively connected to the third temperature sensor and the fourth temperature sensor.

5. The combined hydraulic heating system according to claim 4, characterized in that, The first branch pipeline is equipped with a first shut-off valve, a first check valve, a flow switch, an auxiliary electric heater, and a first temperature sensor from upstream to downstream.

6. The combined hydraulic heating system according to claim 5, characterized in that, The second branch pipeline is equipped with a variable frequency water pump, a second temperature sensor, and a second shut-off valve from upstream to downstream.

7. The combined hydraulic heating system according to claim 6, characterized in that, The third branch pipeline is equipped with a third shut-off valve, a second check valve, and a third temperature sensor from upstream to downstream.

8. The combined hydraulic heating system according to claim 7, characterized in that, The fourth branch pipeline is equipped with a fourth temperature sensor and a fourth shut-off valve from upstream to downstream.

9. The combined hydraulic heating system according to any one of claims 3-8, characterized in that, The return water pipeline is equipped with a magnetic mud filter, a Y-type filter, and an expansion tank from upstream to downstream.

10. The combined hydraulic heating system according to claim 9, characterized in that, The first water outlet pipe is equipped with a fifth shut-off valve at its outlet end; the second water outlet pipe is equipped with a sixth shut-off valve at its outlet end; the water tank is connected to the return water pipe via a fifth branch pipe; a seventh shut-off valve is installed on the inlet end of the fifth branch pipe; the water outlet of the terminal hot water user device is connected to the return water pipe via a sixth branch pipe; an eighth shut-off valve is installed on the inlet end of the sixth branch pipe.

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