CN201892328U - Jacket split balcony type solar water heating system - Google Patents

Abstract

A jacket split balcony type solar water heating system comprises a header, a support and a heat exchange water tank. The header is used for mounting a group of heat collecting tubes, the support is suitable to lead the header to stand on a balcony at a proper angle so that the header can receive sunlight conveniently, the heat exchange water tank is arranged indoors, the installation position of the heat exchange water tank is higher than installation positions of the heat collecting tubes, each heat collecting tube comprises a full glass vacuum tube and a heat conduction blind tube arranged in the vacuum tube, a heat conduction plate is disposed between each heat conduction blind tube and the inner wall of the corresponding vacuum tube, heat transfer media are filled in the heat conduction blind tubes, the heat collecting tubes are transversely placed in the header, a heat transfer medium flow channel hermetically connected with opening ends of the heat conduction blind tubes of the heat collecting tubes is disposed at one end of the header, a shelf for shelving the heat collecting tubes is disposed at the other end of the header, a water outlet tube and a return tube which are communicated with the heat exchange water tank are arranged at the top of the heat transfer medium flow channel, and a heat reduction flow guide tube is disposed in the heat transfer medium flow channel. The jacket split balcony type solar water heating system has the advantages that the solar water heating system is simple in structure, stable and reliable in operation and convenient to be cleaned, and the heat collecting tubes are not easy to be exploded.

Description

Jacket split balcony solar water heating system

technical field

The utility model relates to a jacket split balcony type solar water heating system.

technical background

The split type solar water heater that separates the water storage tank from the vacuum heat collector can place the water storage tank indoors, which has the advantage of visual appearance, but the natural state of the water circulation in the water heater is destroyed, and external force is required to maintain the internal water circulation, such as installing a water pump. . In the case of using a water pump, all components in the system are under pressure, which leads to higher requirements for the structure and installation of each component, complicating the system structure, and increasing the cost. At the same time, the water pump needs to consume electricity and needs to be connected to a power source, which is easily damaged and has potential safety hazards.

In addition, the heat exchange tanks of existing split-type solar water heaters are generally cylindrical made of thin steel plates, with an inner tank, an outer shell, and an insulating layer filled therein. The tubes are connected with solar collectors to form a circulation system. This kind of heat exchange tank exchanges heat with the water in the liner through the heat medium in the coil, and the disassembly and assembly of the coil takes a long time and has a complicated structure.

The heat collecting tubes of existing solar water heaters usually use all-glass vacuum tubes, which are cylindrical tubes with one end open. A glass inner tube and a glass outer tube are made of glass, and the glass inner tube and glass outer tube are basically kept as concentric circles. There is a vacuum between the glass inner tube and the glass outer tube, and the glass inner tube and the glass outer tube are sealed by firing process after vacuuming, and the tube wall of the glass inner tube is brushed with a black solar heat absorbing layer. Water is injected into the glass inner tube, and sunlight shines on the solar heat absorbing layer to heat who is inside the inner tube. This kind of full vacuum glass tube has the following disadvantages: 1. When installing a vacuum tube solar water heater, there is no water injection in the glass inner tube, and the temperature of the glass inner tube is high after drying, so cold water cannot be injected immediately, and it can only be done after the glass inner tube cools down naturally. Inject cold water, otherwise the tube wall of the glass inner tube will crack or burst when it is cold; 2. The thermal conductivity of glass is low and the heat transfer is poor, which is not conducive to heat absorption; 3. After the heat collecting tube is used for a period of time, Dirt settles at the bottom and can only be cleaned by chemical corrosion, which is inconvenient to clean and has poor cleaning effect.

Utility model content

In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a solar water heater with simple structure, stable and reliable operation, heat collecting tubes that are not easy to explode, and easy to clean.

The jacket split balcony solar water heating system includes a header for installing a group of heat collecting tubes, a bracket suitable for erecting the header on the balcony at an angle to receive sunlight and an indoor The heat exchange tank, the installation position of the heat exchange tank is higher than the installation position of the heat collecting tube;

It is characterized in that: the heat collecting tube includes an all-glass vacuum tube and a heat conduction blind tube built in the vacuum tube, a heat conduction sheet is provided between the heat conduction dead tube and the inner wall of the vacuum tube, and the heat transfer medium is filled in the heat conduction dead tube;

The heat collecting tube is placed horizontally in the header box, one end of the header box is provided with a heat transfer medium flow channel sealingly connected with the open end of the heat conduction blind leg of the heat collecting tube, and the other end is provided with a heat collecting tube for The shelf resting on it, the top of the heat transfer medium flow channel is provided with an outlet pipe and a return pipe communicating with the heat exchange tank, and the heat transfer medium flow channel is provided with a thermal lower circulation guide pipe.

Further, the heat exchange tank includes an outer shell, an inner water tank, and an insulation layer between the outer shell and the inner water tank, and the bottom of the inner water tank is provided with an outlet pipe that allows cold water to flow into the water inlet pipe and allows hot water to flow out; The inner surface of the thermal insulation layer and the outer surface of the inner water tank form a closed jacket layer that allows the heat transfer medium to fill it, and the jacket layer communicates with the outlet pipe and the return pipe .

Further, the heat conduction blind pipe is fixedly connected to the heat transfer medium flow channel through bolts, and a sealing ring is provided between the heat conduction dead pipe and the heat transfer medium flow channel.

Further, the heat conduction sheet is a heat conduction aluminum wing, and the heat transfer medium flow channel is a stainless steel flow channel.

The technical concept of the utility model is: adopt the installation form that the heat exchange tank is separated from the heat collector, when installing, the position of the heat exchange tank is higher than the heat collection pipe, and the system works in a natural circulation mode.

The heat exchange tank adopts a jacketed water tank, that is, the inner water tank for actual water storage adopts a pressure-bearing structure. The inner water tank has water inlet and outlet ports, sewage discharge, and pressure relief interfaces. It is a non-pressure-bearing structure, and the jacket layer is filled with antifreeze circulating working fluid as a heat transfer medium, and the jacket layer and the inner water tank are exchanged in the form of heat exchange to achieve the purpose of heating the inner water tank.

When working, the solar all-glass vacuum heat collection tube heats the heat conduction blind tube inside the vacuum tube through light, so that the heat transfer medium inside the blind tube heats up, and continuously exchanges heat with the heat transfer medium in the heat transfer medium flow channel in the header, and at the same time transfers heat The heat transfer medium in the heat medium flow channel conducts direct heat exchange through the outlet pipe and the return pipe connected to the jacket layer of the heat exchange tank, so that the temperature of the heat transfer medium in the jacket layer continues to rise, and at the same time heats the water in the inner water tank. Let the water temperature rise.

The utility model has the following advantages:

1. The heat collector adopts heat conduction blind tube type diversion tube, which has large aperture and fast heat exchange speed. At the same time, there is no working fluid in the vacuum tube, which overcomes the problem that the vacuum tube is broken and leaks working fluid and cannot be used, and also eliminates the ordinary horizontal heat pipe type. As the working time increases, the thermal efficiency decreases; the vacuum tube adopts a horizontal horizontal type, which can absorb solar energy to the maximum extent, and the actual lighting area is less affected by seasonal changes, and it is more reasonable to install on the balcony; the collector and The water tank adopts natural circulation, the control method is simple, and there is no computer control system, which can avoid the occurrence of control system failure.

2. The heat exchange of the water tank adopts the jacket type, that is, the heat collector and the jacket layer of the water tank directly exchange heat, which saves the heat exchange copper coil and saves costs. At the same time, the jacket layer is a non-pressure bearing system, and the jacket layer is added Injecting antifreeze circulating working fluid can greatly enhance the low temperature resistance of the system, and at the same time have good stability, the minimum temperature resistance can reach -40 °C, due to the non-pressure bearing characteristics of the jacket layer, the air in the system can be removed in time, Make the circulation heat exchange more smooth.

3. The jacket layer and the inner water tank adopt the form of direct heat exchange, and the inner water tank is a pressure-bearing water tank. Since the jacket layer and the inner water tank have a large contact area, the heat exchange is rapid and timely. Since the water in and out is pressurized, the hot water at the water end has the same water outlet pressure as the tap water, and the water comfort is better.

Description of drawings

Fig. 1 is a schematic diagram of the utility model.

Fig. 2 is a schematic diagram of the heat collecting tube installed in the header.

Detailed ways

With reference to accompanying drawing, further illustrate the utility model:

The jacket split balcony solar water heating system includes a header 2 for installing a set of heat collecting tubes 1, a bracket suitable for erecting the header 2 on the balcony at an angle to receive sunlight and a set For the indoor heat exchange tank 3, the installation position of the described heat exchange tank 3 is higher than the installation position of the heat collecting tube 1;

The heat collecting tube 1 includes an all-glass vacuum tube 11 and a heat conduction blind tube 12 built in the vacuum tube. A heat conduction sheet is arranged between the heat conduction blind tube 12 and the inner wall of the vacuum tube 11, and the heat transfer medium is filled in the heat conduction blind tube 12 ;

The heat collecting tube 1 is placed horizontally in the header 2, and one end of the header 2 is provided with a heat transfer medium flow channel 21 sealingly connected with the open end of the heat conduction blind pipe 12 of the heat collecting tube 1, and another One end is provided with a shelf 22 for placing the heat collecting tube 1 on it, and the top of the heat transfer medium flow channel 21 is provided with an outlet pipe 23 and a return pipe 24 communicating with the heat exchange tank 2, and the heat transfer medium flow channel 21 is provided with a thermal lower circulation guide pipe 25.

The heat exchange tank 3 includes an outer shell 31, an inner water tank 32 and an insulating layer 33 between the outer shell 31 and the inner water tank 32. The bottom of the inner water tank 32 is provided with a pipe 34 allowing cold water to flow into the water and allowing hot water to The outflow pipe 35 that flows out; the inner surface of the thermal insulation layer 33 and the outer surface of the inner water tank 32 form a closed jacket layer 36 that allows the heat transfer medium to be filled therein, and the jacket layer It communicates with the outlet pipe 23 and the return pipe 24.

The heat conduction blind pipe 12 is fixedly connected to the heat transfer medium flow channel 21 through bolts, and a sealing ring is provided between the heat conduction dead pipe 12 and the heat transfer medium flow channel 21 .

The heat conduction fins are heat conduction aluminum fins, and the heat transfer medium flow channel 21 is a stainless steel flow channel.

The technical idea of the utility model is: adopt the installation form that the heat exchange tank 3 is separated from the heat collector, when installing, the position of the heat exchange tank 3 is higher than the heat collector tube, and the system works in a natural circulation mode.

The heat exchange tank 3 adopts a jacketed water tank, that is, the inner water tank 32 for actual water storage adopts a pressure-bearing structure, and the inner water tank 32 has water inlet and outlet ports, sewage discharge, and pressure relief interfaces, and the outer side of the inner water tank 32 is wrapped with a jacket layer 36. The jacket layer 6 is a non-pressure-bearing structure. The jacket layer 36 is filled with an antifreeze circulating working fluid as a heat transfer medium. The jacket layer 36 and the inner water tank 32 use heat exchange to exchange heat to achieve heating. The purpose of the tank.

When working, the solar all-glass vacuum heat collection tube heats the heat conduction blind pipe 12 inside the vacuum tube through light, so that the heat transfer medium inside the blind pipe 12 heats up, and continuously conducts heat transfer with the heat transfer medium in the heat transfer medium flow channel 21 in the header 2. At the same time, the heat transfer medium in the heat transfer medium channel 21 performs direct heat exchange through the outlet pipe 23 and the return pipe 24 connected to the jacket layer 36 of the water exchange tank 3, so that the heat transfer medium in the jacket layer 36 The temperature keeps rising, and the water in the inner water tank 32 is heated simultaneously to make the water temperature rise.

The content described in the embodiments of this specification is only an enumeration of the realization forms of the utility model concept, and the protection scope of the utility model should not be regarded as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model also extends to Equivalent technical means that those skilled in the art can think of according to the concept of the utility model.

Claims (4)

1. chuck split balcony formula solar water heating system, comprise a header that is used to install one group of thermal-collecting tube, one be fit to described header so that receive the angle of sunlight erect on balcony support and one place indoor heat-exchanging water tank, the installation site of described heat-exchanging water tank is higher than the installation site of described thermal-collecting tube;

It is characterized in that: described thermal-collecting tube comprises all-glass vacuum tube and is built in the heat conduction blind pipe of vacuum tube that be provided with conducting strip between the inwall of described heat conduction blind pipe and vacuum tube, heat transfer medium is filled in the heat conduction blind pipe;

Described thermal-collecting tube is horizontally placed in the described header, one end of described header is provided with passage for heat transfer medium, the other end that the openend with the heat conduction blind pipe of thermal-collecting tube is tightly connected and is provided with and is convenient to thermal-collecting tube and shelves shelf on it, described passage for heat transfer medium top is provided with outlet pipe and the return duct that is communicated with heat-exchanging water tank, is provided with heat circulation mozzle down in the described passage for heat transfer medium.

2. chuck split balcony formula solar water heating system as claimed in claim 1, it is characterized in that: described heat-exchanging water tank comprises shell, inner water tank and the heat-insulation layer between shell and inner water tank, and the bottom of described inner water tank is provided with the outlet conduit that allows cold water to flow into inlet channel and allow hot water to flow out; The inner surface of described heat-insulation layer and the outer surface of inner water tank enclose one airtight, allow described heat transfer medium to fill chuck layer in it, described chuck layer is communicated with described outlet pipe and return duct.

3. chuck split balcony formula solar water heating system as claimed in claim 2, it is characterized in that: described heat conduction blind pipe is affixed by bolt and described passage for heat transfer medium, is provided with sealing ring between described heat conduction blind pipe and the passage for heat transfer medium.

4. chuck split balcony formula solar water heating system as claimed in claim 3, it is characterized in that: described conducting strip is the hot conductive aluminium wing, and described passage for heat transfer medium is the stainless steel runner.

Images