CN1563848A - Vacuum tube heat accumulating solar water heater without water tank - Google Patents

Abstract

The present invention is a vacuum tube heat storage type solar water heater without a water tank, which includes a water heater and a bracket. There are insulation materials, hot water outlet pipes and cold water inlet pipes in the header insulation box; the heat exchanger is a U-shaped pipe, the water inlet is connected to the cold water inlet pipe, and the water outlet is connected to the hot water outlet pipe; the heat exchanger and phase change The heat storage material is filled together in the cavity of the vacuum tube, the nozzle of the vacuum tube is inserted into the header insulation box, the whole water heater is supported by the bracket, and the tail sleeve of the vacuum tube is placed in the support sleeve on the bracket; the cavity of the vacuum tube can be filled with Elastic elements. The invention is simple in structure, beautiful in appearance, economical and practical, and can obtain suitable hot water temperature by using corresponding phase change heat storage materials according to different usage occasions, and can be widely used in daily production and life.

Description

Tankless Vacuum Tube Thermal Storage Solar Water Heater

Technical field

The invention belongs to the field of solar water heaters, in particular to a tankless vacuum tube thermal storage solar water heater.

Background technique

At present, the commonly used equipment for heating hot water includes: boilers, fuel oil water heaters, gas water heaters, electric water heaters, and solar water heaters. Among them, solar water heaters have the lowest operating costs and have a growing trend of prosperity. However, there are currently several aspects that affect the use of solar water heaters. The first is that the price is high, the second is that the floor area is large, the third is that the living location determines whether the user can install a solar water heater, and the fourth is that the existing solar water heater water tank is a pressure-bearing device that must be cylindrical and cannot change with the structure of the building ,Affect the appearance.

Contents of Invention

The object of the present invention is to provide a vacuum tube thermal storage solar water heater without a water tank, which directly utilizes solar radiation to heat water for daily use and production use. Aiming at the present situation, the present invention improves the solar water heater from three aspects of aesthetics, economy and use, and removes the cylindrical pressurized water tank so that its shape can be designed and arranged according to building requirements. The pressure of the water heater of the present invention is borne by the U-shaped pipe, which makes the structure of the solar water heater simpler.

The tankless vacuum tube thermal storage solar water heater of the present invention includes a water heater and a bracket, and the water heater includes a hot water outlet pipe, a header heat preservation box, a cold water inlet pipe, insulation materials, vacuum tubes, a heat exchanger and a phase change heat storage material. There are insulation materials, hot water outlet pipes and cold water inlet pipes in the header insulation box; the heat exchanger is a U-shaped pipe, its water inlet is connected with the cold water inlet pipe, and the water outlet is connected with the hot water outlet pipe; The heater and the phase-change heat storage material are filled together in the cavity of the vacuum tube, and the nozzle of the vacuum tube is inserted into the header incubator; the whole water heater is supported by a bracket, and the end sleeve of the vacuum tube is placed in the support sleeve on the bracket. The number of vacuum tubes can be determined according to Depends on need.

The cavity of the vacuum tube can be filled with elastic elements to prevent the vacuum tube from bursting due to the volume expansion of the phase change heat storage material. The material of the elastic element can be: various easily deformable materials such as rubber plastic tubes, thin-walled aluminum materials, etc. .

Compared with the traditional vacuum tube solar water heater, the present invention has the following advantages:

1. The present invention replaces the heat storage of the water tank with the heat storage of the phase change heat storage material, which saves space and has a simple structure;

2. The same volume of phase change heat storage material has more heat storage energy and higher efficiency than the same volume of water;

3. The present invention prevents the vacuum tube from bursting due to the volume expansion of the phase change thermal storage material by pre-embedding the elastic element, which improves the safety factor of the water heater and prolongs the service life;

4. The structure of the present invention is more compact, the appearance is beautiful, the cost is reduced, and it is economical and practical;

5. The present invention can use corresponding phase change heat storage materials to obtain suitable hot water temperature according to different usage occasions.

Description of drawings

Fig. 1 is the structural representation of the tankless vacuum tube thermal storage type solar water heater of the present invention;

Fig. 2 is a schematic side view of the tankless vacuum tube thermal storage solar water heater of the present invention.

In the figure: 1-hot water outlet pipe 2-collector insulation box 3-cold water inlet pipe 4-insulation material 5-vacuum tube 6-heat exchanger 7-phase change heat storage material 8-elastic element 9-support sleeve 10-bracket

Detailed ways

In order to better understand the present invention, the present invention will be further described below.

As shown in Figures 1 and 2, the tankless vacuum tube thermal storage solar water heater of the present invention includes a water heater and a support 10, and the water heater includes a hot water outlet pipe 1, a header insulation box 2, a cold water inlet pipe 3, an insulating material 4, and a vacuum tube 5. Heat exchanger 6, phase change heat storage material 7 and elastic element 8. There are thermal insulation material 4, hot water outlet pipe 1 and cold water inlet pipe 3 inside the header insulation box 2; the heat exchanger 6 is a φ5～φ11mm U-shaped tube, its water inlet is connected with the cold water inlet pipe, and the water outlet is connected with the hot water The outlet pipe 1 is connected; the heat exchanger 6, the phase change heat storage material 7 and the elastic element 8 are filled in the cavity of the vacuum tube 5, and the nozzle of the vacuum tube 5 is inserted in the header insulation box 2. Whole water heater is supported by support 10, and vacuum pipe 5 pipe tail sleeves are in the support sleeve 9 on the support 10.

Because the volume of the phase change heat storage material 7 will expand after phase change and heat storage, the elastic element 8 embedded in the vacuum tube 5 can prevent the vacuum tube 5 from bursting. The material of the elastic element 8 can be: rubber plastic tube, thin-walled aluminum, etc A deformable material.

The operation mode of the present invention is as follows: during the heat storage period, the vacuum tube 5 absorbs solar radiation energy and first heats the phase change heat storage material 7, and the phase change heat storage material 7 phase changes heat storage during the heating process, and the heat preservation material in the header heat preservation box 2 4. It plays the role of heat preservation; when hot water is used, cold water enters the heat exchanger 6 from the cold water inlet pipe 3 to exchange heat with the phase change heat storage material 7. When it comes to water equipment, the elastic element 8 plays the role of buffering the deformation of the phase change heat storage material 7, and can prevent the vacuum tube 5 from bursting.

The present invention directly utilizes solar radiation to heat water, and uses phase-change heat storage materials instead of water tanks to store heat, which not only saves space, but also reduces the cost, so that the present invention has the advantages of simple structure, beautiful appearance, economical and practical, and can be used according to different The appropriate temperature of hot water can be obtained by using corresponding phase change heat storage materials, which can be widely used in daily production and life.

Claims (5)

1. no water tank vacuum tube heat accumulating type solar heat hydrophone, comprise water heater and support, it is characterized in that water heater comprises hot water outlet pipe, collector incubator, cold water inlet, insulation material, vacuum tube, heat exchanger and phase change heat storage material, has insulation material, hot water outlet pipe and cold water inlet in the described collector incubator; The water inlet of described heat exchanger is connected with cold water inlet, and delivery port is connected with the hot water outlet pipe; Heat exchanger and phase change heat storage material are loaded together in the vacuum tube cavity, and the vacuum tube mouth of pipe is inserted in the collector incubator, and whole water heater is by stent support.

2. no water tank vacuum tube heat accumulating type solar heat hydrophone according to claim 1 is characterized in that being filled with flexible member in the described vacuum tube cavity.

3. no water tank vacuum tube heat accumulating type solar heat hydrophone according to claim 1 and 2 is characterized in that described heat exchanger is a U type pipe.

4. no water tank vacuum tube heat accumulating type solar heat hydrophone according to claim 3 is characterized in that a support set is arranged on the described support.

5. no water tank vacuum tube heat accumulating type solar heat hydrophone according to claim 4 is characterized in that described vacuum tube pipe tail is enclosed within the support set.

Images