Solar heating device
By designing an automated solar heating device that uses a closed-loop circulating medium to transfer heat, the problem of leakage from ruptured vacuum collector tubes has been solved, achieving safe and reliable heating and domestic water supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU HUAZHIGUANG NEW ENERGY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-19
AI Technical Summary
The vacuum collector tubes of existing solar water heaters are prone to rupture during use, causing internal water to leak out and posing a safety hazard.
A solar heating device was designed, consisting of a heating component and a water supply component. It is automated by a PLC controller. The device uses a circulating medium to circulate in a closed loop. The heat absorbed by the heat collector tube is transferred to the medium inside the stainless steel capillary tube, and the water temperature in the heat storage tank is raised through the heat exchanger. The medium is sealed and does not leak when the heat collector tube ruptures.
It ensures that even if the collector tube breaks, there will be no leakage, guaranteeing safe use, and it can provide automatic heating to meet domestic water needs.
Smart Images

Figure CN224261812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of solar heating equipment, specifically a solar heating device. Background Technology
[0002] Solar water heaters are quite common nowadays, usually placed on rooftops. They mainly consist of a collector, an insulated water tank, a support frame, connecting pipes, and control components. Solar water heaters absorb sunlight through the collector and convert it into heat energy. Hot water, being less dense, rises naturally, while cold water, being denser, sinks, creating a natural circulation that gradually raises the overall water temperature to the desired level.
[0003] However, current solar water heaters have the following problems during use: the vacuum collector tubes of solar water heaters are mainly made of high borosilicate glass, and when the vacuum collector tubes break, the water inside will flow out.
[0004] Therefore, in order to solve the above problems, there is an urgent need to design a solar heating device that can overcome them. Utility Model Content
[0005] This utility model provides a solar heating device to solve the problem mentioned in the background art where water leaks out when the vacuum collector tube of a current solar water heater ruptures during use.
[0006] To address the existing problems, this utility model provides a solar heating device, including a mounting frame. The upper and lower ends of the mounting frame are respectively fixedly connected to a first leg and a second leg arranged vertically. A heating component is provided on the upper surface of the mounting frame, and a water supply component is provided on one side of the heating component.
[0007] The heating assembly includes a curved reflector mounted on the upper surface of the mounting frame. The curved reflector is composed of multiple reflective units arranged side by side. Each reflective unit has an arc-shaped concave structure. A pad is fixedly connected to both ends of the upper surface of each reflective unit of the curved reflector. One end of a fastening screw is fixedly connected to the lower surface of the pad. The other end of the fastening screw passes through the curved reflector and the mounting frame and is threaded with a nut. The bottom end of a first arc-shaped clip is fixedly connected to the upper surface of the pad. A second arc-shaped clip is connected to the upper side of the first arc-shaped clip through a threaded component. A heat collection tube is clamped between the first arc-shaped clip and the second arc-shaped clip. All heat collection tubes are connected in series through stainless steel 304 capillary tubes.
[0008] The water supply assembly includes a heat storage tank, in which a heat exchanger is installed. The side wall of the heat storage tank is provided with a return port and an outlet port that are connected to the inlet and outlet of the heat exchanger from top to bottom. The return port and the outlet port are respectively connected to the two ends of a stainless steel 304 capillary tube through a return pipe and a delivery pipe. A water pump is installed on the delivery pipe.
[0009] Furthermore, a first switch and a second switch are respectively provided on the return port and the outlet.
[0010] Furthermore, a second water inlet is provided on the side wall of the heat storage tank, and a third switch is provided on the second water inlet.
[0011] Furthermore, the heat exchanger, return pipe, delivery pipe, and stainless steel 304 capillary tube contain circulating media.
[0012] Furthermore, the length of the first leg is greater than the length of the second leg.
[0013] Furthermore, the portion of the 304 stainless steel capillary tube exposed to the air is wrapped with insulating material.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This solar heating device consists of a heating element and a water supply element, with a PLC controller enabling automated operation. During operation, the PLC controller automatically activates the first and second switches and simultaneously starts the water pump, driving the circulating medium to circulate in a loop composed of a heat exchanger, a delivery pipe, a return pipe, and a stainless steel 304 capillary tube. As the circulating medium flows through the stainless steel 304 capillary tube, the heat collector transfers the absorbed heat to the circulating medium within the capillary tube, raising its temperature. The heated circulating medium then flows into the heat storage tank through the return pipe and return port. Inside the heat storage tank, the heat exchanger transfers the heat from the circulating medium to the water, raising its temperature and making it usable as a heat source. The heat source is output through the water supply port to meet domestic water needs.
[0016] 2. Even if the collector tube of this solar heating device ruptures, there will be no leakage because the circulating medium in the system is in a closed loop, thus ensuring safe use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the heating component structure of this utility model. Figure 1 ;
[0019] Figure 3 This is a schematic diagram of the heating component structure of this utility model. Figure 2 ;
[0020] Figure 4 This utility model Figure 3 A magnified structural diagram at point A;
[0021] Figure 5 This is a schematic diagram of the heating component structure of this utility model. Figure 3 ;
[0022] Figure 6 This utility model Figure 5 A magnified structural diagram at point B;
[0023] Figure 7 This is a schematic diagram of the structure of the reflective unit of this utility model;
[0024] Figure 8 This is a schematic diagram of the water supply component of this utility model;
[0025] In the diagram: 1. Mounting frame; 2. First leg; 3. Second leg; 4. Heating assembly; 401. Curved reflector; 402. Reflecting unit; 403. Pad; 404. Fastening screw; 405. Nut; 406. First arc-shaped clip; 407. Threaded part; 408. Second arc-shaped clip; 409. Heat collection tube; 410. Stainless steel 304 capillary tube; 5. Water supply assembly; 501. Heat storage tank; 502. Return port; 503. Outlet port; 504. Return pipe; 5041. First switch; 505. Infusion pipe; 5051. Second switch; 506. Water pump; 6. Second water supply port; 601. Third switch. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-8 A solar heating device includes a mounting frame 1, with a first leg 2 and a second leg 3 vertically connected to the upper and lower ends of the mounting frame 1, respectively. A heating component 4 is provided on the upper surface of the mounting frame 1, and a water supply component 5 is provided on one side of the heating component 4.
[0028] The heating assembly 4 includes a curved reflector 401 disposed on the upper surface of the mounting frame 1. The curved reflector 401 is composed of multiple reflective units 402 arranged side by side. Each reflective unit 402 has an arc-shaped concave structure. A pad 403 is fixedly connected to the upper surfaces of both ends of each reflective unit 402 of the curved reflector 401. One end of a fastening screw 404 is fixedly connected to the lower surface of the pad 403. The other end of the fastening screw 404 passes through the curved reflector 401 and the mounting frame 1 and is threadedly connected to a nut 405. The bottom end of a first arc-shaped clip 406 is fixedly connected to the upper surface of the pad 403. A second arc-shaped clip 408 is connected to the upper side of the first arc-shaped clip 406 through a threaded part 407. A heat collection tube 409 is clamped between the first arc-shaped clip 406 and the second arc-shaped clip 408. All the heat collection tubes 409 are connected in series through stainless steel 304 capillary tubes 410; the water supply assembly 5 includes a heat storage tank 501, in which a heat exchanger is installed. The side wall of the heat storage tank 501 is provided with a return port 502 and an outlet port 503 connected to the inlet and outlet of the heat exchanger from top to bottom. The return port 502 and the outlet port 503 are respectively connected to the two ends of the stainless steel 304 capillary tube 410 through a return pipe 504 and a delivery pipe 505. A water pump 506 is installed on the delivery pipe 505.
[0029] The return port 502 and the outlet 503 are respectively equipped with a first switch 5021 and a second switch 5031.
[0030] The heat storage tank 501 is also equipped with a second water inlet 6 on its side wall, and a third switch 601 is installed on the second water inlet 6.
[0031] Among them, the heat exchanger, return pipe 504, delivery pipe 505, and stainless steel 304 capillary tube 410 contain circulating medium.
[0032] The length of the first leg 2 is greater than the length of the second leg 3.
[0033] Among them, the exposed part of the 304 stainless steel capillary tube 410 is wrapped with thermal insulation material.
[0034] Working principle: The heat storage tank 501 is filled with water. The PLC controller automatically controls the opening of the first switch 5021 and the second switch 5031, and simultaneously starts the water pump 506. The water pump 506 pumps the circulating medium in the heat exchanger, the liquid delivery pipe 505, the liquid return pipe 504, and the stainless steel 304 capillary tube 504. When the circulating medium passes through the stainless steel 304 capillary tube 410, the reflective unit 402 of the curved reflector 401 reflects sunlight onto the surface of the heat collector tube 409, and the heat collector tube 409 itself also absorbs sunlight. Therefore, the heat collector tube 409... Heat is transferred to the stainless steel 304 capillary tube 410 passing through it. The circulating medium within the capillary tube 410 absorbs heat and its temperature rises. The heated circulating medium then flows through the return pipe 504 and return port 502 into the heat storage tank 501, where it exchanges heat with a heat exchanger. The heat exchanger transfers the heat from the circulating medium to the water in the heat storage tank 501, raising the water temperature and providing it as a usable heat source. This heat source can then be used for domestic purposes through the water supply port 6. Even if the collector tube 409 ruptures during the operation of this solar heating device, no water will leak out.
[0035] It should also be noted that the circulating medium can be selected from heat transfer oil, antifreeze, or water, depending on the actual use. The exterior of the heat storage tank 501 is equipped with thermal insulation material to keep the hot water inside the tank warm.
[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A solar heating device, comprising a mounting frame (1), wherein a first leg (2) and a second leg (3) are respectively fixedly connected to the upper and lower ends of the mounting frame (1), characterized in that: A heating component (4) is provided on the upper surface of the mounting frame (1), and a water supply component (5) is provided on one side of the heating component (4). The heating assembly (4) includes a curved reflector (401) disposed on the upper surface of the mounting frame (1). The curved reflector (401) is composed of multiple reflective units (402) arranged side by side. Each reflective unit (402) has an arc-shaped concave structure. A pad (403) is fixedly connected to the upper surface of both ends of each reflective unit (402) of the curved reflector (401). A fastening screw (404) is fixedly connected to the lower surface of the pad (403). One end of the fastening screw (404) is threaded through the curved reflector (401) and the mounting frame (1) and connected to a nut (405). The bottom end of the first arc-shaped clip (406) is fixedly connected to the upper surface of the pad (403). The upper side of the first arc-shaped clip (406) is connected to the second arc-shaped clip (408) through a threaded part (407). The heat collection tube (409) is clamped between the first arc-shaped clip (406) and the second arc-shaped clip (408). All the heat collection tubes (409) are connected in series through stainless steel 304 capillary tubes (410). The water supply component (5) includes a heat storage tank (501), in which a heat exchanger is installed. The side wall of the heat storage tank (501) is provided with a return port (502) and an outlet port (503) connected to the inlet and outlet of the heat exchanger from top to bottom. The return port (502) and the outlet port (503) are respectively connected to the two ends of a stainless steel 304 capillary tube (410) through a return pipe (504) and a delivery pipe (505). A water pump (506) is installed on the delivery pipe (505).
2. The solar heating device according to claim 1, characterized in that: The return port (502) and the outlet (503) are respectively equipped with a first switch (5021) and a second switch (5031).
3. The solar heating device according to claim 1, characterized in that: The heat storage tank (501) is also provided with a second water inlet (6) on its side wall, and a third switch (601) is provided on the second water inlet (6).
4. A solar heating device according to claim 1, characterized in that: The heat exchanger, return pipe (504), delivery pipe (505), and stainless steel 304 capillary tube (410) contain circulating media.
5. A solar heating device according to claim 1, characterized in that: The length of the first leg (2) is greater than the length of the second leg (3).
6. A solar heating device according to claim 1, characterized in that: The exposed portion of the stainless steel 304 capillary tube (410) is covered with insulation material.