WO2004055448A1 - Plate separated type anti-freezing solar water heater system - Google Patents

Abstract

The invention is a plate separated type anti-freezing solar water heater system which includes an anti-freezing heat collecting plate (1), a cold cycle pipe (2), a hot cycle pipe (3), an insulating water tank (4) and building (5). The plate (1) is comprised of fin plates (a), an upper header and a lower header (b), and air chambers(c). The air chambers are formed in the upper end in wall or out wall of the upper and lower header integratively or sectionally. The air chambers are connected with the headers. The inventive heat collecting plates are installed on the outwall of building aslant or vertically. The water tank receives water from hot cycle water in one direction or more directions. The way of cycle can be natural or forced cycle. The structure and performance of the invention are stable, reliable and save, and the use thereof is convenient. The invention solves the problem which the separation of anti-freezing technique and building design results in, and the structure of building is considered effectively and make building have better appearance.

Description

 Flat split antifreeze solar water heater system

TECHNICAL FIELD The present invention relates to the field of heating, and in particular to a flat-panel split type anti-freezing solar water heater system that is widely used in the anti-freezing technology of flat-panel solar water heaters and lighting heating, and needs to provide hot water. BACKGROUND OF THE INVENTION The traditional flat solar water heater system, that is, the commonly used flat solar water heater heat collecting plate, is often unusable in cold weather because the water in the header freezes into ice and swells the tube. It is also inconsistent with the building and affects the building. Disadvantages such as aesthetics are increasingly unsuited to the needs of the development of the construction industry, and more serious are the obstacles to the development of the solar industry. Although some solar water heaters have adopted anti-freezing measures (currently there are evacuation methods, built-in elastic methods, and electric heating). Method, built-in antifreeze method, etc.), a "wall-mounted solar water heater" was proposed in terms of building integration, but there are still low thermal efficiency, unstable performance, high failure rate, and the safety required by buildings. Disclosure of the Invention The purpose of the present invention is to improve the shortcomings of the above-mentioned solar water heater system, and provide a flat split antifreeze solar water heater system, which can solve the drawbacks of the traditional solar water heater antifreeze technology and the separation of the building design, and more effectively. Integration with the building makes the building more beautiful. In order to achieve the object of the present invention, the following technical scheme is adopted: The flat split antifreeze solar water heater system provided by the present invention includes an antifreeze heat collecting plate (1); a cold circulation pipe (2) and a heat circulation pipe (3); Insulated water tank (4), and building (5). The cold circulation pipe (2) is connected to the lower end of the thermal insulation water tank (4) and the antifreeze heat collecting plate (1) of the system through the building (5), and the hot circulation pipe (3) is connected to the cold resistance of the system through the building (5) The upper end of the plate (1) is connected to the heat preservation water tank; among them, the anti-freezing heat collecting plate (1)-is composed of a wing plate (tube) (a); upper and lower headers (b); and an air chamber (c). It is characterized in that gas chambers are left in one piece or in sections in the upper or lower header wall or the upper end of the outer wall, and the gas chamber is in communication with the header; when the heat collecting plate is filled with water, the gas in the gas chamber cannot be eliminated There is a certain amount of space left in the gas chamber. When the water in the header is frozen into ice, the volume increases, compressing the gas in the gas chamber, squeezing the space in the gas chamber, and preventing the header from bursting and freezing. When the ice is thawed into water, the air chamber returns to its original state. Anti-freezing heat-collecting panels installed in the same building In multiple directions of the external wall, the thermal insulation water tank is installed inside the building. When the water in the frost-resistant heat-collecting panel is heated, the indoor heat-preserving water tank receives multi-directional hot water circulation, which realizes the effective combination of solar water heaters and buildings.

 In the flat split antifreeze solar water heater system provided by the present invention, the installation method of the antifreeze heat collecting plate (1) is inclined installation with a certain inclination angle with the building, and it can also be installed vertically on the exterior wall of the building. At the same time, the frost-resistant heat collecting plates are installed in multiple directions in the same building in an up-down or parallel connection form.

 The anti-freezing heat-collecting panel (1) changes the color of the anti-freezing heat-collecting panel according to the environment and color of the surrounding buildings to achieve the aesthetic effect of the building.

 The frost-resistant heat collecting plate (1) has air chambers in one piece or in sections inside the upper and lower header walls or at the upper end of the outer wall; it can also extend a part of the wing tube into the lower header for a tangential channel or eccentricity. Channel to ensure that the air chamber will not be eliminated through the wing tube and eccentric channels.

 The length of the upper and lower headers (b) of the frost-resistant heat collecting plate (1) may be greater than the height of the wing plate (tube) (a). In the flat split antifreeze solar water heater system provided by the present invention: the thermal insulation water tank (4), according to the different heating modes, one user can be used as a water tank, or multiple users can be used as a water tank circulation unit. Two or more multi-directional circulation systems provide heat.

 The heat preservation water tank (4) is connected to the heat circulation tube of the anti-freezing heat collecting plate. During natural circulation, the lower end of the heat insulation water tank is higher than the upper end of the heat collection plate that the cycle accepts. During forced circulation, the water tank can be placed anywhere in the room. The cold and hot circulation pipes are connected to the bottom of the heat preservation water tank. Brief description of the drawings

 Fig. 1A is an inclined single-user circulation system of the present invention; Fig. 1B is a schematic view of the connection between an inclined anti-freezing heat collecting plate; Fig. 1C is a multi-directional drawing of an anti-freezing heat collecting plate installed in the same building; Fig. 1D is an inclined type Schematic diagram of parallel connection of frost-resistant heat collecting plates.

 FIG. 2A is a tilted multi-user circulation system of the present invention; FIG. 2B is a schematic view of the connection between a plurality of inclined anti-freezing heat collecting plates; FIG. 2C is a multi-directional schematic view of installing the anti-freezing heat collecting plates in the same building; FIG. 2D It is a schematic diagram of parallel connection of inclined multiple anti-freezing heat collecting plates.

 Fig. 3A is a vertical single-user circulation system of the present invention; Fig. 3B is a schematic diagram of the vertical anti-freezing heat collecting plate connecting up and down; Fig. 3C is a multi-directional schematic diagram of the anti-freezing heat collecting plate installed in the same building; Fig. 3D is a vertical Schematic diagram of parallel connection of the antifreeze heat collecting plate.

Fig. 4A is a vertical multi-user circulation system of the present invention; Fig. 4B is a schematic view of vertical connection of multiple anti-freezing heat-collecting panels; Fig. 4C is a multi-directional schematic view of installing the anti-freezing heat-collecting panels in the same building; Fig. 4D Schematic diagram of parallel connection of multiple vertical antifreeze heat collection plates. FIG. 5 is a schematic diagram of the connection during forced circulation of the system of the present invention. Figure 6 A is a schematic diagram of a sealed air chamber installed at the upper ends of the upper and lower headers; Figure 6 B is a schematic view of extending the wing tube (a) into a part of the lower header while making an eccentric circular channel in the upper and lower headers ;

 Fig. 7A is a schematic view of a sealed air chamber provided on the upper and lower headers; Fig. 7B is a schematic view of extending the wing tube (a) into a part of the lower header while making a circular passage in the upper and lower headers;

 FIG. 8 is a schematic diagram showing the height of the upper and lower headers (b) longer than the wing (tube) (a). The best way to implement the present invention is described below with reference to the accompanying drawings. -With reference to the drawings, in which

 Fig. 1A shows the inclined single-user circulation system provided by the present invention; Fig. 1B shows the up and down connection of the inclined frost-resistant heat collecting plate and the circulation of the heat preservation water tank; Fig. 1C shows that the frost-resistant heat collecting plate is installed in the same building The multi-directional, insulated water tank accepts one or more directions of circulation; FIG. 1D schematically illustrates the inclined anti-freezing heat collecting plate connected in parallel with the insulated water tank circulation.

 Fig. 2A shows the inclined multi-user circulation system of the present invention; Fig. 2B shows the inclined multiple anti-freezing heat collecting plates, the lower and upper connections and the circulation of the heat preservation water tank; Fig. 2C shows the anti-freezing heat collecting plates installed in the same building The multi-directional and multi-directional thermal insulation water tank can be circulated in one or more directions; FIG. 2D is a schematic view of a plurality of inclined anti-freezing heat collecting plates connected in parallel with the thermal water tank circulation.

 Fig. 3A shows the vertical single-user circulation system provided by the present invention; Fig. 3B shows the vertical anti-freezing heat collecting plate and the connection between the bottom and the water tank; Fig. 3C shows the anti-freezing heat collecting plate installed in the same building The multi-directional, insulated water tank accepts one or more directions of circulation; FIG. 3D schematically illustrates the vertical antifreeze heat collecting plate connected in parallel with the insulated water tank cycle.

 FIG. 4A shows a vertical multi-user circulation system provided by the present invention; FIG. 4B shows the vertical multiple anti-freezing heat collecting plates and the lower and upper connections and the insulation water tank circulation; FIG. 4C shows the anti-freezing heat collecting plates installed on the same The building's multi-directional, insulated water tanks can be cycled in one or more directions; Figure 4D shows the vertical multiple anti-freezing heat-collecting panels connected in parallel with the insulated refrigerator cycle. - One

 Figure 5 shows the connection diagram when the system is forced to cycle.

Figures 6A and 7A show the installation of sealed air chambers on the upper and lower headers; Figure 6B shows the wing tube (a) extending into a part of the lower header, and the inlet and outlet of the upper and lower headers. The two ends of the nozzle are used as eccentric channels; Figure 7B is a tangential channel made on the inner wall of the lower header, and the lower header is extended into the tangential channel so that the flowing water Flow upwards along the wing tube in the tangential channel to ensure that the gas in the gas chamber will not flow out.

 Figure 8 shows that the length of the upper and lower headers (b) is greater than the height of the flap (tube) (a).

 Referring to FIGS. 1A-D, 2A-D, 3A-D, and 4A-D, the anti-freezing heat collecting plate of a solar water heater is installed in an inclined or vertical direction on the outer wall surface of a building in multiple directions, and is installed in the building Solar water heater thermal insulation tank, the thermal insulation tank accepts one or more directions of hot water circulation. The cold circulation pipe (2) is connected to the lower end of the thermal insulation water tank (4) and the antifreeze heat collecting plate (1) of the system through the building (5); the hot circulation pipe (3) is connected to the antifreeze heat collection of the system through the building (5) The upper end of the board (1) is connected to the middle and upper part of the heat preservation water tank (4). When the water in the antifreeze heat collection board is heated, it is naturally circulated into the heat preservation water tank through a heat circulation pipe to overcome the traditional solar design concept and installation method, and truly realize The combination of solar energy and buildings.

 Referring to FIG. 5, when the water tank is restricted by the installation position and conditions, the heat preservation water tank can be set anywhere, and the heat circulation tube of the heat collecting plate is connected to the lower part of the heat insulation water tank. The water temperature of the lower part of the water tank is low, so the water tank is prohibited The possibility of reverse circulation of hot water inside is also beneficial to the temperature setting of the temperature controller and pump. '

 Referring to FIGS. 6A-B and 7A-B, when the sealed air chamber (c) is connected to the upper and lower headers (b) respectively, the upper end of the tube wall is a convex structure; The tube (a) extends into a part of the lower header, and at the same time, an eccentric channel or a tangential channel is provided at the water inlet and outlet of the upper and lower headers. Because when the heat collecting plate of the solar water heater is filled with water, the air chamber does not have any exhaust passages, the gas in the air chamber cannot always be exhausted, and the gas chamber is in a gas state during normal use. When the temperature in the header decreases, the water in the header freezes into ice, and when the volume expands, it enters the gas chamber, compresses the gas in the gas chamber, and increases the gas pressure, but does not swell the header, thereby protecting the safety of the heat collecting plate. After the temperature rises the header and the ice in the gas chamber is thawed, the gas chamber returns to its original state.

 Referring to FIG. 8, the length of the heat collecting plate and the lower collecting tube (b) is longer than the height of the wing plate (tube) (a), which reduces the installation height during the installation, enhances the wind resistance of the flat-plate solar water heater, and facilitates circulation. .

 In order to install the anti-freezing heat-collecting panels inclined or vertically on the external wall in the east, west, and south directions of the same building, a thermal insulation water tank is installed in the room, which is set to the same water tank single user circulation system or the same water tank according to the situation. Multi-user circulation system, when the heat collecting plate is heated, hot water is circulated into the heat preservation water tank from one or more directions (see Fig. 1A-D, Fig. 2A-D, Fig. 3A-D, Fig. 4A-D);

-In normal use, the air chamber Λ on the upper and lower headers is in a gas state; because the wing tube (a) extends into a part of the lower header, and the water flow channel is a downward eccentric channel or a tangential channel, water passes through the eccentric channel or After the tangent channel flows into the lower header, it will circulate upward from the wing tube (a) of the extended part to the upper header. At the same time, the outlet of the upper header is also a downward eccentric channel or a tangential channel. The gas in the header cannot be exhausted from the extended wing tube and the eccentric channel or tangential channel to form an air chamber. When the temperature in the header decreases, the water in the header freezes into ice and expands, and the increased volume will enter the gas chamber, compressing the gas in the gas chamber. The pressure increases but does not swell the header. After the temperature rises in the header and the ice in the gas chamber, the gas chamber returns to its original state. (See Figure 6B, Figure 7B)

 When the heat preservation water tank is restricted by the installation position and conditions, the heat preservation water tank can be installed anywhere. The lower end of the collector is connected to the lower end of the heat preservation water tank through a cold circulation pipe, and the upper end is connected to the lower end of the heat preservation water tank through a heat circulation pipe. Because the temperature of the upper part of the heat preservation water tank is higher than the lower end (the water temperature of the lower end is similar to the cold cycle), when the pump stops working, the hot water in the heat preservation water tank will not cause reverse circulation, and only the water temperature at the upper end of the heat collecting plate is slightly higher than When the water temperature at the bottom of the insulated water tank is reached, the system can start running (see Figure 5). Industrial applicability The flat split antifreeze solar water heater system of the present invention installs a solar water heater antifreeze heat-collecting plate by tilting or vertically in the outer wall of the same building in multiple directions, and installs a solar water heater thermal insulation water tank inside the building to make the thermal water tank Accept one or more directions of hot water circulation, the circulation mode can be natural circulation or forced circulation. It solves the disadvantages of the traditional solar water heater's antifreeze technology and the separation of the building design, integrates the building more effectively, and makes the building more beautiful. The system of the invention has stable and reliable structural performance, convenient use, and safety.

Claims

Rights request 1. A flat split anti-freezing solar water heater system, comprising an anti-freezing heat collecting plate (1); a cold circulation pipe (2), a heat circulation pipe (3); a thermal insulation water tank (4) and a building (5), cold The circulation pipe (2) is connected to the lower end of the thermal insulation water tank (4) and the antifreeze heat collecting plate (1) of the system through the building (5), and the heat circulation pipe (3) is connected to the antifreeze heat collection plate of the system through the building (5) (1) The upper end is connected to the heat preservation water tank; the frost-resistant heat collecting plate (1) is composed of a flap (tube) (a); upper and lower headers (b); and an air chamber (c). It is characterized in that ¾ "sealed air chambers are installed at the upper ends of the upper and lower headers respectively, and the air chambers communicate with the headers; the wing tubes extend into a part of the lower headers, and at the same time make eccentric channels or tangential circular channels up and down The frost-resistant heat-collecting panel is installed in multiple directions on the outer wall of the same building, and the thermal insulation water tank is installed anywhere in the building to accept one or more directions of circulation.  2. The flat split antifreeze solar water heater system according to claim 1, characterized in that the installation mode of the antifreeze heat collecting plate (1) is an inclined installation with a certain inclination angle with the building, or it can be directly vertical It is installed on the exterior surface of the building, and at the same time, the frost-resistant heat-collecting panels are installed in multiple directions in the same building in an up-down or parallel connection. 3. The flat split anti-freezing solar water heater system according to claim 1, characterized in that the anti-freezing heat collecting plate (1) changes the corresponding anti-freezing heat collecting plate color according to the environment and color of surrounding buildings, so that Achieve the aesthetic effect of the building. 4. The flat split anti-freezing solar water heater system according to claim 1, characterized in that the anti-freezing heat collecting plate (1) is formed in a single block or in sections on the inside of the upper or lower header 'wall or the upper end of the outer wall. The air chamber is left; the wing tube can also be extended into a lower header to make a tangential or eccentric channel to ensure that the gas in the air chamber will not be eliminated through the wing and the eccentric channel or tangential channel. The flat split antifreeze solar water heater system according to claim 1, characterized in that the size of the air chamber space is more than twice that of the space increased by freezing the water in the board. 6. The flat split antifreeze solar water heater system according to claim 1, characterized in that, in the antifreeze heat collecting plate (1), the length of the upper and lower headers (b) according to the needs of the building can be larger than the wing plate (Tube)). The flat-panel split anti-freezing solar water heater system according to claim 1, characterized in that the heat preservation water tank (4) can use one user as one water tank or multiple users as one according to different heating modes. The water tank circulation unit can also accept heat from one or more directions of the circulation system. The flat split antifreeze solar water heater system according to claim 1, characterized in that, when the heat preservation water tank (4) is connected to the heat circulation tube of the antifreeze heat collection plate, the lower end portion of the heat preservation water tank is in natural circulation It is higher than the upper end of the heat collecting plate that it accepts for circulation. During forced circulation, the water tank can be placed anywhere in the room, and the cold and hot circulation pipes are connected to the bottom of the insulated water tank.