Device for preparing domestic hot water and heating hot water by using heat source

Abstract

The utility model discloses a device for preparing domestic hot water and heating hot water by using a heat source. The device comprises a water tank, a water inlet mechanism, a heating circulation mechanism and a pipeline temperature fixing mechanism, the water tank comprises a domestic hot water tank, a first heating water tank and a second heating water tank, the domestic hot water tank, the first heating water tank and the second heating water tank are all in a barrel shape, and the diameter of the cross section of the first heating water tank is larger than that of the domestic hot water tank; the diameter of the cross section of the domestic hot water tank is larger than that of the cross section of the second heating water tank, the domestic hot water tank is arranged in an inner cavity of the first heating water tank, the second heating water tank is arranged in an inner cavity of the domestic hot water tank, and the second heating water tank is communicated with the first heating water tank through a bottom opening. The top end faces of the domestic hot water tank, the first heating water tank and the second heating water tank are located on the same horizontal plane. The device provided by the utility model greatly reduces the investment and operation cost of the traditional heating and domestic water system.

Description

Technical Field

[0001] The utility model relates to the technical field of heating hot water and domestic hot water preparation, and particularly relates to a device for preparing domestic hot water and heating hot water by using a combined heat source. Background Art

[0002] Conventional building heating water systems and domestic hot water systems need to be respectively equipped with heat sources, water tanks and control systems, etc., and the initial investment is relatively high. The air source heat pump configured in the heating water system only operates in the heating season. In the non-heating season, the building heating water system is in an idle state, so there is a need for optimization.

[0003] When the conventional direct heating method is used to prepare domestic hot water, when the water quality hardness is relatively high, it is easy to scale after heating, resulting in problems such as a reduced cross-sectional area of the pipeline and poor water flow. If chemical agents such as scale inhibitors are added, the quality of the hot water will be reduced or even fail to meet the water quality standard requirements. If ion exchange and other methods are used to reduce the water source hardness for both heating hot water and domestic hot water, the operating cost will be relatively high. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above technical deficiencies and provide a device for preparing domestic hot water and heating hot water by using a combined heat source, which greatly reduces the investment and operating costs of traditional heating and domestic water systems.

[0005] To achieve the above technical purpose, the technical solution of the utility model provides a device for preparing domestic hot water and heating hot water by using a combined heat source, including:

[0006] A water tank, a water inlet mechanism, a heating circulation mechanism and a pipeline constant temperature mechanism; the water tank includes a domestic hot water tank, a first heating water tank and a second heating water tank; the domestic hot water tank, the first heating water tank and the second heating water tank are all in a barrel shape; the cross-sectional diameter of the first heating water tank is larger than the cross-sectional diameter of the domestic hot water tank; the cross-sectional diameter of the domestic hot water tank is larger than the cross-sectional diameter of the second heating water tank; the domestic hot water tank is placed inside the inner cavity of the first heating water tank; the second heating water tank is placed inside the inner cavity of the domestic hot water tank; the second heating water tank is communicated with the first heating water tank through an opening at the bottom; the top surfaces of the domestic hot water tank, the first heating water tank and the second heating water tank are on the same horizontal plane.

[0007] Compared with the prior art, the beneficial effects of the utility model include:

[0008] 1. The device for preparing domestic hot water and heating hot water with a shared heat source provided by this utility model combines the heating equipment and heat storage equipment of the building heating water system and the domestic hot water system, avoiding the unfavorable situation that the air source heat pump configured in the heating water system only operates in the heating season, and the building heating water system is in an idle state in the non-heating season, greatly reducing the system investment.

[0009] 2. The device for preparing domestic hot water and heating hot water with a shared heat source provided by this utility model can be used in occasions where the water quality of the water source has a high hardness. After the water source adds scale inhibitors to the water through the scale inhibitor dosing equipment, it enters the heating water tank. The domestic hot water source reduces the calcium and magnesium content in the water through a water softener, and then is indirectly heated through the first heating water tank and the second heating water tank. Therefore, it can reduce the probability of scale formation while ensuring the quality of domestic hot water, and at the same time, there is no need to soften the heating water source, greatly reducing the overall operating cost of the system.

[0010] 3. The device for preparing domestic hot water and heating hot water with a shared heat source provided by this utility model realizes full-automatic operation by setting multiple sensors and controllers, and the functional process is simple to operate. Brief Description of the Drawings

[0011] Figure 1 It is a system schematic diagram of the device for preparing domestic hot water and heating hot water with a shared heat source provided by this utility model. Detailed Embodiment

[0012] In order to make the purpose, technical solution and advantages of this utility model clearer, the following further details this utility model in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not used to limit this utility model.

[0013] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0015] Please refer to Figure 1 , this embodiment provides a device for preparing domestic hot water and heating hot water using a combined heat source, including: a water tank, a water inlet mechanism, a heating circulation mechanism, and a pipeline constant temperature mechanism.

[0016] Furthermore, the water tank includes a domestic hot water tank 2, a first heating water tank 1, and a second heating water tank 3; the domestic hot water tank 2, the first heating water tank 1, and the second heating water tank 3 are all barrel-shaped. The cross-sectional diameter of the first heating water tank 1 is greater than that of the domestic hot water tank 2, the cross-sectional diameter of the domestic hot water tank 2 is greater than that of the second heating water tank 3, the domestic hot water tank 2 is built into the inner cavity of the first heating water tank 1, the second heating water tank 3 is built into the inner cavity of the domestic hot water tank 2, the second heating water tank 3 is connected to the first heating water tank 1 through an opening at the bottom, and the top surfaces of the domestic hot water tank 2, the first heating water tank 1, and the second heating water tank 3 are at the same horizontal plane.

[0017] Furthermore, the water inlet mechanism includes a domestic hot water level sensor, a heating hot water level sensor, a heating hot water control valve 15, a domestic hot water control valve 14, a heating hot water make-up water pipe 12, and a domestic hot water make-up water pipe 13. The domestic hot water level sensor and the heating hot water level sensor are respectively arranged in the domestic hot water tank 2 and the first heating water tank 1.

[0018] Furthermore, the domestic hot water make-up water pipe 13 is connected to the domestic hot water tank 2, and the domestic hot water control valve 14 is arranged on the domestic hot water make-up water pipe 13. The heating hot water make-up water pipe 12 is connected to the first heating water tank 1, and the heating hot water control valve 15 is arranged on the heating hot water make-up water pipe 12.

[0019] Preferably, the heating hot water control valve 15 is an electric control valve for supplying water to the first heating water tank 1.

[0020] Preferably, the domestic hot water control valve 14 is an electric control valve for supplying water to the domestic hot water tank 2.

[0021] Furthermore, a scale inhibitor dosing device 25 is also arranged on the domestic hot water make-up water pipe 13 for removing scale from the water in the pipe, and a water softener 28 is also arranged on the heating hot water make-up water pipe 12 to soften the water quality.

[0022] Further, the heating cycle mechanism includes a heating water tank temperature detection unit 11, a solar collector 24, a solar heating circulation pump 9, and an air source heat pump unit 4. The heating water tank temperature detection unit 11 is disposed inside the first heating water tank 1. The solar collector 24 is communicated with the bottom end of the inner cavity of the first heating water tank 1 through a solar water inlet pipe 7. The solar heating circulation pump 9 is disposed on the solar water inlet pipe 7. The solar collector 24 is communicated with the upper end of the inner cavity of the first heating water tank 1 through a solar water outlet pipe 23.

[0023] Preferably, the heating water tank temperature detection unit selects a thermometer to measure the water temperature of the first heating water tank 1.

[0024] Specifically, the solar collector 24 is used for heating water.

[0025] Specifically, the air source heat pump unit 4 is used for heating water.

[0026] Further, the air source heat pump unit 4 is communicated with the bottom end of the inner cavity of the first heating water tank 1 through an air source heat pump water inlet pipe 6. The air source heat pump unit circulation pump 8 is disposed on the air source heat pump water inlet pipe 6. The air source heat pump unit 4 is communicated with the upper end of the inner cavity of the first heating water tank 1 through an air source heat pump water outlet pipe 18.

[0027] Further, the pipeline constant temperature mechanism includes a domestic hot water return pipe 22 and a heating hot water return pipe 20. The domestic hot water return pipe 22 is communicated with the domestic hot water tank 2. The heating hot water return pipe 20 is communicated with the first heating water tank 1. A domestic hot water return pipe temperature detector 21 and a heating hot water return pipe temperature detector 19 are respectively disposed on the domestic hot water return pipe 22 and the heating hot water return pipe 20.

[0028] Further, a domestic hot water return circulation pump 27 and a heating hot water return circulation pump 26 are respectively disposed on the domestic hot water return pipe 22 and the heating hot water return pipe 20.

[0029] Further, an air source heat pump unit circulation pipe service valve 10 is further disposed on the air source heat pump water inlet pipe 6 for servicing the air source heat pump unit. A domestic hot water drain valve 16 and a heating hot water drain valve 17 are respectively disposed at the bottom ends of the domestic hot water tank 2 and the first heating water tank 1 for draining the water in the domestic hot water tank 2 and the first heating water tank 1.

[0030] Further, a heating water supply pipe 6 is further communicated with the first heating water tank 1 for supplying water thereto.

[0031] Further, a secondary water supply pipe 7 is further communicated with the domestic hot water tank 2 for supplying water thereto.

[0032] Further, the domestic hot water level sensor, heating hot water level sensor, heating hot water control valve 15, domestic hot water control valve 14, scale inhibitor dosing device 25, water softener 28, heating water tank temperature detection unit, solar collector 24, solar heating circulation pump 9, air source heat pump unit 4, temperature detector for the domestic hot water return pipe 22, temperature detector for the heating hot water return pipe 20, domestic hot water return circulation pump 27 and heating hot water return circulation pump 26 are all connected to the controller 5 through wires, and the controller 5 is used to control the device.

[0033] Further, the working principle of the water inlet mechanism is as follows:

[0034] In the water tank, the first heating water tank 1 is communicated with the second heating water tank 3, and the domestic hot water tank 2 is relatively independent of the first heating water tank 1 and the second heating water tank 3, without water exchange. Through the monitoring of the heating hot water level sensor, when the water level in the first heating water tank 1 reaches the set low water level, the heating hot water control valve 15 opens to start replenishing water to the first heating water tank 1, and after reaching the set water level, the heating hot water control valve 15 closes to stop water inlet.

[0035] Through the monitoring of the domestic hot water level sensor, when the water level in the domestic hot water tank 2 reaches the set low water level, the domestic hot water control valve 14 opens to start replenishing water to the domestic hot water tank 2. The water replenishment for the domestic hot water tank 2 needs to be softened by the water softener 28 first to reduce the calcium and magnesium ion content in the water, and only after water softening can it enter the domestic hot water tank 2. The water replenishment for the first heating water tank 1 and the second heating water tank 3 needs to add scale inhibitor to the water through the scale inhibitor dosing device 25 first before it can enter the first heating water tank 1 and the second heating water tank 3. After the water level in the domestic hot water tank 2 reaches the set water level, the domestic hot water control valve 14 closes to stop water inlet.

[0036] Further, the working principle of the heating circulation mechanism is as follows:

[0037] When the heating water tank temperature detection unit detects that the water temperature in the first heating water tank 1 is lower than the set temperature, the solar heating circulation pump 9 starts to pump the water pressure in the first heating water tank 1 and the second heating water tank 3 into the solar collector 24 for heating.

[0038] When the heating water tank temperature detection unit 11 detects that the water temperature in the first heating water tank 1 reaches the set temperature, the solar heating circulation pump 9 stops working.

[0039] After the solar heating circulation pump 9 has been started for a period of time, when the heating water tank temperature detection unit 11 detects that the water temperature in the first heating water tank 1 is still lower than the set temperature, the air source heat pump unit circulation pump is started, and the water pressure in the first heating water tank 1 and the second heating water tank 3 is pumped into the air source heat pump unit for heating.

[0040] When the heating water tank temperature detection unit 11 detects that the water temperature in the first heating water tank 1 reaches the set temperature, the air source heat pump unit circulation pump 8 stops working.

[0041] Furthermore, the working principle of the pipeline constant temperature mechanism is as follows:

[0042] When the domestic hot water return pipe temperature detector 21 detects that the water temperature in the domestic hot water return pipe 22 is lower than the set temperature, the domestic hot water return water circulation pump 27 is started, and the water in the domestic hot water return pipe 22 is pumped into the domestic hot water tank 2. When the domestic hot water return pipe temperature detector 21 detects that the water temperature in the domestic hot water return pipe 22 reaches the set temperature, the domestic hot water return water circulation pump 27 stops the water circulation.

[0043] When the heating hot water return pipe temperature detector 19 detects that the water temperature in the heating hot water return pipe 20 is lower than the set temperature, the heating hot water return water circulation pump 26 is started, and the water in the heating hot water return pipe 20 is pumped into the first heating water tank 1; when the heating hot water return pipe temperature detector 19 detects that the water temperature in the heating hot water return pipe 20 reaches the set temperature, the heating hot water return water circulation pump 26 stops the water circulation.

[0044] Among them, when the first heating water tank 1 and the second heating water tank 3 need to be repaired, the heating hot water drain valve 17 is opened to drain the water in the first heating water tank 1 and the second heating water tank 3. When the domestic hot water tank 2 needs to be repaired, the domestic hot water drain valve is opened to drain the water in the domestic hot water tank 2.

[0045] The control logic of the controller in the device for preparing domestic hot water and heating hot water with a combined heat source provided by this utility model adopts the prior art.

[0046] The above specific implementation manners of the present utility model do not constitute a limitation to the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A device for preparing domestic hot water and heating hot water using a combined heat source, characterized in that, Comprising: A water tank, a water inlet mechanism, a heating circulation mechanism and a pipeline constant temperature mechanism; the water tank includes a domestic hot water tank, a first heating water tank and a second heating water tank; the domestic hot water tank, the first heating water tank and the second heating water tank are all barrel-shaped; the cross-sectional diameter of the first heating water tank is greater than the cross-sectional diameter of the domestic hot water tank; the cross-sectional diameter of the domestic hot water tank is greater than the cross-sectional diameter of the second heating water tank; the domestic hot water tank is placed inside the inner cavity of the first heating water tank; the second heating water tank is placed inside the inner cavity of the domestic hot water tank; the second heating water tank is communicated with the first heating water tank through an opening at the bottom; the top surfaces of the domestic hot water tank, the first heating water tank and the second heating water tank are at the same horizontal plane.

2. The device for preparing domestic hot water and heating hot water using a shared heat source according to claim 1, wherein The water inlet mechanism includes a domestic hot water level sensor, a heating hot water level sensor, a heating hot water control valve, a domestic hot water control valve, a heating hot water make-up water pipe and a domestic hot water make-up water pipe; the domestic hot water level sensor and the heating hot water level sensor are respectively arranged in the domestic hot water tank and the first heating water tank.

3. The device for preparing domestic hot water and heating hot water using a shared heat source according to claim 2, characterized in that, The domestic hot water make-up water pipe is communicated with the domestic hot water tank; the domestic hot water control valve is arranged on the domestic hot water make-up water pipe; the heating hot water make-up water pipe is communicated with the first heating water tank; the heating hot water control valve is arranged on the heating hot water make-up water pipe.

4. The device for preparing domestic hot water and heating hot water using a shared heat source according to claim 3, characterized in that, A scale inhibitor dosing device is also arranged on the domestic hot water make-up water pipe for removing scale in the pipe; a water softener is also arranged on the heating hot water make-up water pipe to soften the water quality.

5. The device for preparing domestic hot water and heating hot water using a shared heat source according to claim 4, characterized in that, The heating circulation mechanism includes a heating water tank temperature detection unit, a solar collector panel, a solar heating circulation pump, and an air source heat pump unit; the heating water tank temperature detection unit is arranged in the inner cavity of the first heating water tank; the solar collector panel is communicated with the bottom end of the inner cavity of the first heating water tank through a solar water inlet pipe; the solar heating circulation pump is arranged on the solar water inlet pipe; the solar collector panel is communicated with the upper end of the inner cavity of the first heating water tank through a solar water outlet pipe.

6. The device for preparing domestic hot water and heating hot water using a shared heat source according to claim 5, characterized in that, The air source heat pump unit is communicated with the bottom end of the inner cavity of the first heating water tank through an air source heat pump water inlet pipe; the air source heat pump unit circulation pump is arranged on the air source heat pump water inlet pipe; the air source heat pump unit is communicated with the upper end of the inner cavity of the first heating water tank through an air source heat pump water outlet pipe.

7. The device for preparing domestic hot water and heating hot water using a shared heat source according to claim 6, wherein, The pipeline constant temperature mechanism includes a domestic hot water return pipe and a heating hot water return pipe; the domestic hot water return pipe is communicated with the domestic hot water tank; the heating hot water return pipe is communicated with the first heating water tank; a domestic hot water return pipe temperature detector and a heating hot water return pipe temperature detector are respectively arranged on the domestic hot water return pipe and the heating hot water return pipe.

8. The device for preparing domestic hot water and heating hot water using a shared heat source according to claim 7, wherein A domestic hot water return circulation pump and a heating hot water return circulation pump are respectively arranged on the domestic hot water return pipe and the heating hot water return pipe.

9. The device for preparing domestic hot water and heating hot water by using a shared heat source according to claim 8, wherein An air source heat pump unit circulation pipe maintenance valve is also arranged on the air source heat pump water inlet pipe; a domestic hot water drain valve and a heating hot water drain valve are respectively arranged at the bottom ends of the domestic hot water tank and the first heating water tank.

10. The device for preparing domestic hot water and heating hot water using a shared heat source according to claim 9, characterized in that, The domestic hot water level sensor, heating hot water level sensor, heating hot water control valve, domestic hot water control valve, scale inhibitor dosing device, water softener, temperature detection unit of the heating water tank, solar collector panel, solar heating circulation pump, air source heat pump unit, temperature detector of the domestic hot water return pipe, temperature detector of the heating hot water return pipe, domestic hot water return circulation pump and heating hot water return circulation pump are all connected to the controller through wires.

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