CN214665272U

CN214665272U - Solar energy inner loop water heater

Info

Publication number: CN214665272U
Application number: CN202120354161.6U
Authority: CN
Inventors: 张书伟
Original assignee: Shandong Xuneng New Energy Technology Co ltd
Current assignee: Shandong Xuneng New Energy Technology Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-11-09
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses a solar energy internal circulation water heater, which is provided with a water inlet interface and a water outlet interface on a water tank, the water tank is provided with a plurality of heat exchange tubes and at least one communicating pipe, the bottoms of the heat exchange tubes are connected with a bottom header, and the bottom header is provided with an open port which can be used for removing scale; the heat exchange tubes realize that bottom hot water in the bottom header rises to the water tank at the top, the communicating tube realizes that cold water in the water tank flows to the bottom header, and the circulating flow in the solar internal circulation water heater is realized through the structure, so that the liquid is quickly heated, and the structure also prevents scale. The utility model discloses through this kind of structure setting, its heating efficiency effectively promotes, and the effectual incrustation scale of having avoided produces, is the solar energy inner loop water heater of an ideal.

Description

Solar energy inner loop water heater

Technical Field

The utility model belongs to the technical field of solar collector, concretely relates to solar energy inner loop water heater.

Background

It is known, in solar heating heat transfer technical field, a water tank has been erect through the mount to present general structure, be connected with a plurality of solar energy collection pipes on the water tank, the lower part of solar energy collection pipe is the bottom header, through this kind of structure setting, supply water to the inside of water tank when using, water can present the state that rises automatically after being heated, because of solar energy collection pipe's thermal-arrest characteristic is the trend that rises fast below 50 degrees centigrade, when more than 50 degrees centigrade, its temperature rising speed is the trend that descends of straight line, therefore, when realizing solar heating, cold water is the deposit downwards, rise automatically again after bottom header temperature risees, with this promotion that realizes the temperature in the water tank.

However, the above solar heating method has the following problems: 1. the heating efficiency is low, and the effect of quick temperature rise cannot be achieved by automatically raising the temperature of the high-temperature liquid only by the automatic temperature rise in the header; 2. and (3) scale deposits, in the heating process, because the temperature rising efficiency is low, the water flow speed in the heating device is very low, a water vortex cannot be formed, and the scale deposits easily in the header to finally block the heat collecting pipe and the header.

The technical problem to be solved by the skilled in the art is how to design a water heater with high thermal efficiency by technical improvement, and the water heater can avoid the generation of scale in the water tank on the basis of improving the heating efficiency.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a solar energy inner circulation water heater, which can realize the rapid flow of the liquid in the heat collecting system by adopting a novel structural design and can avoid the generation of scale.

In order to achieve the technical purpose, the utility model adopts the following scheme: a solar energy internal circulation water heater comprises a fixing frame, wherein a water tank is arranged at the top of the fixing frame, a water inlet and a water outlet are arranged on the water tank, a plurality of heat exchange tubes and at least one communicating tube are arranged on the water tank, the bottoms of the heat exchange tubes are connected with a bottom header, an open port is arranged on the bottom header, threads are arranged on the open port, and the fixed connection of screwing ports is realized through the threads; the heat exchange tubes realize that bottom hot water in the bottom header rises to the water tank at the top, and the communicating tubes realize that cold water in the water tank flows to the bottom header.

The communicating pipe is arranged on the outer side of the heat exchange pipes.

The heat exchange tube is divided into an outer layer tube and an inner layer tube, a vacuum area is arranged between the outer layer tube and the inner layer tube, and a plurality of reducing areas are arranged on the inner layer tube; a metal clamp is arranged between the inner layer pipe and the outer layer pipe in the vacuum area, and the relative position of the outer layer pipe and the inner layer pipe is limited by the metal clamp; the outer surface of the inner pipe is provided with a layer of selective absorption film.

The communicating pipe is divided into an outer layer pipe and an inner layer pipe, a vacuum area is arranged between the outer layer pipe and the inner layer pipe, and a plurality of diameter-changing areas are arranged inside the inner layer pipe; and a metal clamp is arranged between the inner layer pipe and the outer layer pipe in the vacuum area, and the relative positions of the outer layer pipe and the inner layer pipe are limited by the metal clamp.

The communicating pipe is divided into an outer layer pipe and an inner layer pipe, and a vacuum area is arranged between the outer layer pipe and the inner layer pipe; and a metal clamp is arranged between the inner layer pipe and the outer layer pipe in the vacuum area, and the relative positions of the outer layer pipe and the inner layer pipe are limited by the metal clamp.

The utility model has the advantages that: through the arrangement, the water tank is provided with the water inlet interface and the water outlet interface, the water tank is provided with the plurality of heat exchange tubes and the at least one communicating pipe, the bottoms of the heat exchange tubes are connected with the bottom header, and the bottom header is provided with the open port which can be used for removing scale; the heat exchange tubes realize that bottom hot water in the bottom header rises to the water tank at the top, the communicating tube realizes that cold water in the water tank flows to the bottom header, and the circulating flow in the solar internal circulation water heater is realized through the structure, so that the liquid is quickly heated, and the structure also prevents scale. The utility model discloses through this kind of structure setting, its heating efficiency effectively promotes, and the effectual incrustation scale of having avoided produces, is the solar energy inner loop water heater of an ideal.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the structure of the present invention;

FIG. 4 is a schematic view of the internal structure of the heat exchanger of the present invention;

in the drawing, the device comprises a fixed frame 1, a fixed frame 11, an inclined frame 2, a water tank 21, a water inlet connector 22, a water outlet connector 3, a heat exchange pipe 31, an outer pipe 32, an inner pipe 33, a metal card 34, a selective absorption membrane 4, a communication pipe 5, a bottom header 51, an open port 52 and a screwed port.

Detailed Description

Referring to the attached drawings, the solar internal circulation water heater comprises a fixing frame 1, a water tank 2 is arranged at the top of the fixing frame 1, a water inlet port 21 and a water outlet port 22 are arranged on the water tank 2, and the water tank is connected with an external water supply end and a water using end through the water inlet port 21 and the water outlet port 22.

The water tank 2 is provided with a plurality of heat exchange tubes 3 and at least one communicating tube 4, the bottoms of the heat exchange tubes 3 are connected with a bottom header 5, the bottom header 5 is provided with an open port 51, the open port 51 is provided with threads, the screwed port 52 is fixedly connected through the threads, and after a small amount of scale appears in the bottom header 5, the internal scale can be cleaned in a manner of opening the screwed port 52; the heat exchange tubes 3 realize that the bottom hot water in the bottom header 5 rises into the water tank 2 at the top, and the communicating tube 4 realizes that the cold water in the water tank flows into the bottom header; the communicating pipes 4 are arranged on the outer sides of the heat exchange pipes 3, and through the structure, as shown in fig. 3, water flow can form water flow circulation among the water tank, the bottom header, the communicating pipes 4 and the heat exchange pipes 3, so that a water source in the solar internal circulation water heater flows.

As shown in fig. 4, the heat exchange tube 3 is divided into an outer tube 31 and an inner tube 32, a vacuum area is formed between the outer tube 31 and the inner tube 32, and a plurality of diameter-variable areas are arranged inside the inner tube 32; in the vacuum area, a metal clamp 33 is arranged between the inner layer tube 32 and the outer layer tube 31, and the relative positions of the outer layer tube 31 and the inner layer tube 32 are limited by the metal clamp 33; a selective absorption membrane 34 is provided on the outer surface of the inner tube 32 to achieve heat absorption.

Further, the communication pipe 4 can adopt two structural forms, one of which is: the pipe is divided into an outer layer pipe 31 and an inner layer pipe 32, a vacuum area is arranged between the outer layer pipe 31 and the inner layer pipe 32, and a plurality of diameter-changing areas are arranged inside the inner layer pipe; in the vacuum area, a metal clamp 33 is arranged between the inner layer pipe 32 and the outer layer pipe 31, and the relative position of the outer layer pipe 31 and the inner layer pipe 32 is limited by the metal clamp 33, so that the heat insulation box can be improved and the pipe burst condition can be reduced.

Another situation is: the communicating pipe 4 is divided into an outer layer pipe 31 and an inner layer pipe 32, and a vacuum area is arranged between the outer layer pipe 31 and the inner layer pipe 32; in the vacuum area, a metal card is arranged between the inner layer pipe and the outer layer pipe, and the relative positions of the outer layer pipe 31 and the inner layer pipe 32 are limited by the metal card 33, so that the structure can realize the reduction of the manufacturing cost under the condition of ensuring the temperature.

To summarize: through the arrangement, the water tank 2 is provided with the plurality of heat exchange tubes 3 and the at least one communicating tube 4, the bottoms of the heat exchange tubes 3 and the communicating tubes 4 are connected with the bottom header 5, and the bottom header 5 is provided with the open port 51 for removing scale; the heat exchange tubes 3 realize that bottom hot water in the bottom header 5 rises to the water tank 2 at the top, the communicating tube 4 realizes that cold water in the water tank 2 flows to the bottom header 5, the circulating flow in the solar internal circulation water heater is realized through the structure, so that the liquid is quickly heated, and the structure also prevents scale.

Claims

1. The utility model provides a solar energy inner loop water heater, its includes a mount, the top of mount be provided with the water tank, the water tank on be provided with into water interface and play water interface, its characterized in that: the water tank is provided with a plurality of heat exchange tubes and at least one communicating pipe, the bottoms of the heat exchange tubes are connected with the bottom header, the bottom header is provided with an open port, the open port is provided with threads, and the screwed ports are fixedly connected through the threads; the heat exchange tubes realize that bottom hot water in the bottom header rises to the water tank at the top, and the communicating tubes realize that cold water in the water tank flows to the bottom header.

2. The solar internal circulation water heater as claimed in claim 1, wherein: the communicating pipe is arranged on the outer side of the heat exchange pipes.

3. A solar internal circulation water heater as defined in claim 1 or 2, wherein: the heat exchange tube is divided into an outer layer tube and an inner layer tube, a vacuum area is arranged between the outer layer tube and the inner layer tube, and a plurality of reducing areas are arranged on the inner layer tube; a metal clamp is arranged between the inner layer pipe and the outer layer pipe in the vacuum area, and the relative position of the outer layer pipe and the inner layer pipe is limited by the metal clamp; the outer surface of the inner pipe is provided with a layer of selective absorption film.

4. A solar internal circulation water heater as defined in claim 1 or 2, wherein: the communicating pipe is divided into an outer layer pipe and an inner layer pipe, a vacuum area is arranged between the outer layer pipe and the inner layer pipe, and a plurality of diameter-changing areas are arranged inside the inner layer pipe; and a metal clamp is arranged between the inner layer pipe and the outer layer pipe in the vacuum area, and the relative positions of the outer layer pipe and the inner layer pipe are limited by the metal clamp.

5. A solar internal circulation water heater as defined in claim 1 or 2, wherein: the communicating pipe is divided into an outer layer pipe and an inner layer pipe, and a vacuum area is arranged between the outer layer pipe and the inner layer pipe; and a metal clamp is arranged between the inner layer pipe and the outer layer pipe in the vacuum area, and the relative positions of the outer layer pipe and the inner layer pipe are limited by the metal clamp.