Split type pressure-bearing vacuum tube type hot water system

Abstract

The utility model relates to a kind of split type pressure-bearing vacuum pipe type hot water system, belong to solar water heating equipment technical field. Mainly including vacuum heat collector, water storage tank, circulating pipeline and circulating pump. Vacuum heat collector is composed of vacuum heat collecting tube and heat collection tank, and wave-shaped inclined flow guide plate is equipped in heat collection tank, by being obliquely installed in the upper portion of heat collection tank, the degree of fluid turbulence can be enhanced, and heat exchange with vacuum heat collecting tube and tank wall is strengthened;Spiral coil heat exchanger is built-in in water storage tank, and the heat exchange area of heat transfer medium and cold water in tank is increased;Circulating pipeline adopts double-layer insulation structure, and heat loss is reduced;Water storage tank bottom support foot is matched with shock-absorbing rubber pad, and stability is improved. The system is optimized flow field by flow guide plate, spiral coil high-efficiency heat exchange and insulation design, significantly improves heat collection efficiency and heat transfer efficiency, solves the problem of insufficient heat exchange, slow hot water temperature rise of traditional vacuum pipe type hot water system.

Description

Technical Field

[0001] This utility model belongs to the technical field of solar water heating equipment, specifically relating to a split-type pressurized vacuum tube water heating system. Background Technology

[0002] A solar collector tube is a device used to collect solar energy to heat the fluid medium inside the tube. Therefore, the function of the collector tube is to convert sunlight into heat energy and heat water through heat transfer. When sunlight shines on the collector tube, the internal heat-absorbing coating converts light energy into heat energy, raising the temperature of the water inside the tube. The emergence of solar collector tubes has brought great convenience to people when using hot water.

[0003] Most solar water heaters use vacuum tubes as the collector element. The heat absorbed by the vacuum tubes heats the cold water inside. The heated water inside the tubes rises in temperature and decreases in density, causing it to rise while the denser cold water sinks to the bottom and continues to be heated, ensuring a continuous upward flow of hot water into the tank. In traditional systems, the internal structure of the collector box is simple, resulting in low heat exchange efficiency between the fluid and the vacuum collector tubes and the inner wall of the collector box. The hot and cold media are difficult to mix fully, and a large amount of solar energy cannot be effectively converted into heat energy, resulting in energy waste. The heat exchange structure in the storage tank generally uses ordinary coil or flat plate designs, with limited heat exchange area and slow hot water heating. Therefore, there is an urgent need for a split-type pressurized vacuum tube hot water system to solve the problems of insufficient heat exchange and slow hot water heating. Summary of the Invention

[0004] In order to overcome the problems of insufficient heat exchange and slow water heating in traditional vacuum tube hot water systems in the background art, this utility model provides a split-type pressurized vacuum tube hot water system, which can effectively improve heat exchange efficiency and the heating speed and temperature of hot water.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A split-type pressurized vacuum tube hot water system mainly includes a vacuum collector, a water storage tank, a circulation pipe, and a circulation pump. The vacuum collector is installed on a workbench and includes a collector box and multiple vacuum collector tubes. One end of each vacuum collector tube is inserted into the collector box and communicates with the inside of the collector box. The collector box is provided with an inlet and an outlet. The water storage tank is installed on a support base and is provided with a hot water outlet and a cold water inlet. The circulation pipe includes a first circulation pipe and a second circulation pipe. One end of the first circulation pipe is connected to the outlet of the collector box, and the other end is connected to the cold water inlet of the water storage tank. One end of the second circulation pipe is connected to the hot water outlet of the water storage tank, and the other end is connected to the inlet of the collector box. The circulation pump is installed on the first circulation pipe.

[0006] Furthermore, a guide plate is provided inside the solar collector box. The guide plate is wavy and is fixedly connected to the inner wall of the solar collector box.

[0007] Furthermore, the water storage tank is equipped with a spiral coil heat exchanger. One end of the spiral coil heat exchanger is connected to the second circulation pipe through a cold water inlet, and the other end is connected to the first circulation pipe through a hot water outlet.

[0008] Furthermore, the circulating pipeline adopts a double-layer insulation structure, with the inner layer being a metal material with good thermal conductivity and the outer layer being a thermal insulation material.

[0009] Furthermore, the bottom of the water storage tank is provided with support feet, and the bottom of the support feet is provided with shock-absorbing rubber pads.

[0010] The beneficial effects of this utility model are:

[0011] This utility model features a corrugated inclined guide plate inside the solar collector box that breaks the laminar flow boundary of the fluid, guides the cross-convection of hot and cold media, forces the mixing of heat, and promotes full contact between the heat and the vacuum collector tubes and the inner wall of the solar collector box, effectively improving heat exchange efficiency and solving the problem of insufficient heat exchange in traditional systems. The water storage tank has a built-in spiral coil heat exchanger, which increases the heat exchange area compared to ordinary coil or flat plate designs, and can more efficiently transfer the heat from the collector to the water in the water storage tank. Combined with the double-layer insulation structure of the circulating pipe, it reduces heat transfer loss and significantly improves the hot water heating speed. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of the vacuum collector of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the solar collector box of this utility model;

[0015] Figure 4 This is a schematic diagram of the spiral coil heat exchanger structure of this utility model.

[0016] In the diagram: 1. Vacuum collector; 101. Collector box; 102. Vacuum collector tube; 2. Circulation pipe; 201. First circulation pipe; 202. Second circulation pipe; 3. Water storage tank; 4. Circulation pump; 5. Workbench; 6. Support base; 7. Support leg; 8. Spiral coil heat exchanger; 9. Guide plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0018] This utility model discloses a split-type pressurized vacuum tube hot water system. The split-type pressurized vacuum tube hot water system mainly includes a vacuum collector 1, a water storage tank 3, a circulation pipe 2, and a circulation pump 4. The vacuum collector 1 is installed on a workbench 5 and includes a collector box 101 and multiple vacuum collector tubes 102. One end of each vacuum collector tube 102 is inserted into the collector box 101 and communicates with its interior. The collector box 101 has an inlet and an outlet. The water storage tank 3 is installed on a support base 6 and has a hot water outlet and a cold water inlet. The circulation pipe 2 includes a first circulation pipe 201 and a second circulation pipe 202. One end of the first circulation pipe 201 is connected to the outlet of the collector box 101, and the other end is connected to the cold water inlet of the water storage tank 3. One end of the second circulation pipe 202 is connected to the hot water outlet of the water storage tank 3, and the other end is connected to the inlet of the collector box 101. The circulation pump 4 is installed on the first circulation pipe 201.

[0019] The heat collection box 101 is equipped with a guide plate 9, which is wavy and fixedly connected to the inner wall of the heat collection box 101. When the fluid flows through the guide plate 9, the flow velocity and direction of the fluid change abruptly at the convex and concave parts of the wave, breaking the original stable laminar flow state and forming a strong turbulent effect. In the turbulent state, the movement of fluid molecules is more intense, enabling faster heat exchange with the vacuum heat collection tube 102 and the inner wall of the heat collection box 101, greatly improving the heat exchange efficiency.

[0020] The water storage tank 3 is equipped with a spiral coil heat exchanger 8. One end of the spiral coil heat exchanger 8 is connected to the second circulation pipe 202 through a cold water inlet, and the other end is connected to the first circulation pipe 201 through a hot water inlet. The spiral coil heat exchanger 8 greatly increases the contact area with the cold water in the water storage tank 3. In the same amount of time, the increased contact area allows more heat to be transferred from the high-temperature fluid in the coil to the cold water in the water storage tank 3, thereby accelerating the heating rate of the hot water and improving the efficiency of hot water preparation.

[0021] The circulation pipe 2 adopts a double-layer insulation structure, with the inner layer being a metal material with good thermal conductivity and the outer layer being a thermal insulation material; the double-layer insulation structure can effectively reduce heat loss during circulation and improve heat transfer efficiency.

[0022] The bottom of the water storage tank 3 is provided with a support foot 7, and the bottom of the support foot 7 is provided with a shock-absorbing rubber pad; the shock-absorbing rubber pad can reduce the vibration and noise generated during system operation, and at the same time improve the stability of the water storage tank 3.

[0023] Work process:

[0024] In the specific operation process, the vacuum collector 1 is first installed in a sunny location to ensure that it can fully receive solar energy. Then, the water storage tank 3 is placed in a suitable position, and the shock-absorbing rubber pads at the bottom of the support feet 7 ensure that the water storage tank 3 is placed stably. Next, one end of the first circulation pipe 201 is connected to the outlet of the collector box 101, and the other end is connected to the cold water inlet of the water storage tank 3. One end of the second circulation pipe 202 is connected to the hot water outlet of the water storage tank 3, and the other end is connected to the inlet of the collector box 101. A circulation pump 4 is installed on the first circulation pipe 201. When the system is running, the circulation pump 4 is started. The heated heat transfer medium flows into the spiral coil heat exchanger 8 in the water storage tank 3 through the second circulation pipe 202, transfers heat to the cold water in the water storage tank 2, cools it down, and then returns to the collector box 101 through the first circulation pipe 201. This cycle is repeated to achieve continuous heat collection and transfer. The temperature of the cold water rises after absorbing heat. In the whole circulation process, the double-layer insulation structure of the circulation pipe 2 effectively reduces heat loss and ensures the efficient operation of the system.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A split pressure-bearing evacuated tube water heating system, characterised in that: The aforementioned split-type pressurized vacuum tube hot water system includes a vacuum collector (1), a circulation pipe (2), a water storage tank (3), and a circulation pump (4). The vacuum collector (1) is installed on a workbench (5) and includes a collector box (101) and multiple vacuum collector tubes (102). One end of each vacuum collector tube (102) is inserted into the collector box (101) and communicates with the inside of the collector box (101). The collector box (101) is provided with an inlet and an outlet. The water storage tank (3) is installed on a support base (6) and stores water. The tank (3) is provided with a hot water outlet and a cold water inlet; the circulation pipe (2) includes a first circulation pipe (201) and a second circulation pipe (202). One end of the first circulation pipe (201) is connected to the outlet of the heat collection box (101) and the other end is connected to the cold water inlet of the water storage tank (3). One end of the second circulation pipe (202) is connected to the hot water outlet of the water storage tank (3) and the other end is connected to the inlet of the heat collection box (101); the circulation pump (4) is installed on the first circulation pipe (201).

2. A split pressure-bearing evacuated tube water heating system as claimed in claim 1, characterized in that: The heat collection box (101) is provided with a guide plate (9), which is wavy and fixedly connected to the inner wall of the heat collection box (101).

3. The split pressure-bearing evacuated tube water heating system of claim 1, wherein: The water storage tank (3) is equipped with a spiral coil heat exchanger (8). One end of the spiral coil heat exchanger (8) is connected to the second circulation pipe (202) through the cold water inlet, and the other end is connected to the first circulation pipe (201) through the hot water outlet.

4. The split-pressure-bearing evacuated-tube water heating system according to claim 1, characterized in that: The circulating pipe (2) adopts a double-layer insulation structure, with the inner layer being a metal material with good thermal conductivity and the outer layer being a thermal insulation material.

5. The split pressure-bearing evacuated tube water heating system of claim 1, wherein: The bottom of the water storage tank (3) is provided with a support foot (7), and the bottom of the support foot (7) is provided with a shock-absorbing rubber pad.

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