CN2881454Y - All-weather tankless pressurized solar water heater - Google Patents

Abstract

The utility model relates to an all-weather water tankless pressurized solar water heater, which comprises a plurality of glass vacuum heat collecting tubes (4) connected in series through an "L" shaped diversion tube (9) to form a heat collector, the first heat collecting tube The cold water inlet pipe (5) is provided with a check valve (6) and a pressure switch valve (7), and a pressure relief safety valve (3) is connected in series on the hot water outlet pipe (1) of the heat collecting pipe at the end, and the first A temperature sensor (21) is inserted in any one of the heat collecting tubes to the fourth. The pressure-bearing water heater adopts a large-diameter glass vacuum heat collecting tube, which has dual functions of heat collection and water storage, one-time heat conduction, fast heat transfer, high heat collection efficiency, strong pressure bearing capacity, good vacuum insulation effect, and stable hot water temperature. The pressurized solar water heater and heat collection system can be integrated with the building, neat and beautiful.

Description

All-weather tankless pressurized solar water heater

technical field

The utility model relates to a solar water heating device, in particular to a photoelectric integrated all-weather pressure solar water heater without a water tank.

Background technique

Most of the existing solar water heaters are non-pressurized, and their heat collecting tubes are straight tubes. The connection to the water heater tank is only sealed by rubber rings, which cannot withstand a certain water pressure, and the heat transfer is slow, the heat loss is large, and the water flow speed is slow. The water stored in the pipe cannot be fully utilized every day. The heat collecting tube cannot be directly used in a pressurized solar heat collecting system, and it is inconvenient to be integrated with the building. It is only limited to the direct plug-in non-pressure solar water heater.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the existing technology and provide an all-weather tankless pressure-bearing solar water heater, which adopts a larger diameter glass vacuum heat collecting tube, has dual functions of heat collection and water storage, conducts heat once, and transfers heat Fast, high heat collection efficiency, strong pressure bearing capacity, good vacuum insulation effect, stable hot water temperature, used for pressure-bearing solar water heaters and heat collection systems, can be integrated with buildings, neat and beautiful.

The utility model is realized in such a way that several glass vacuum heat collecting tubes are connected in series to form a heat collector through an "L" shaped diversion tube, and the cold water inlet pipe of the first heat collecting tube is provided with a check valve and a pressure switch valve. A pressure relief safety valve is connected in series to the hot water outlet pipe of the last heat collecting pipe, a temperature sensor is inserted in any one of the first to fourth heat collecting pipes at the end, and each glass vacuum heat collecting pipe is equipped with a self-controlled low-power electric heater , The heat collecting tube is not only a heat collector, but also a thermal insulation water tank with both photoelectricity and light.

The nozzle of the glass vacuum heat collecting tube is flanged outward, and the outer wall of the lower part of the flange is covered with a clamp ring. The nozzle of the heat collecting tube is plugged with a plug, and the sealing fit is filled with rubber pads and rubber rings. The top surface of the plug is connected with a top block , the pipe plug and the top block are interspersed with two "L"-shaped plug-in diversion tubes that extend into the heat collecting tube, and a pressure block is pressed on the diversion tube, and a plurality of pull bars extend upward from the periphery of the clamp ring and bend to the top of the pressure block The surface is fastened to the pressing block and the top block by screws.

One of the "L"-shaped diversion tubes extends into the inner cavity of the heat collecting tube close to the bottom through the tube plug, and the other slightly extends out of the tube plug. Plug it.

The heat collecting surface of the heat collector formed by the "L" shape connecting guide pipe in series is a flat surface, a curved surface, an arc surface or an irregular surface suitable for the shape of the building, and can be placed vertically, inverted, horizontally or obliquely.

This water heater breaks through the existing technology, changes the form of direct insertion of the water tank and the heat collecting tube, and uses large-diameter glass heat collecting tubes in series to form a heat collector, so that the heat collecting tube is both a heat collector and an insulated water tank. High efficiency, low heat loss, hot water in the collector is used one by one, the outlet water temperature is stable, saving space and cost by eliminating the water tank, and easy installation. The heat collecting tube has good sealing effect, strong pressure bearing capacity, and smooth water flow; the heat collecting tube is equipped with a low-power electric heating tube for heat and electric compensation to ensure that the water heater can be used around the clock. The heat collecting tubes are spliced into various shapes by splicing the diversion tubes arbitrarily, matching with buildings, and can be widely used in various pressurized building-integrated hot water system projects.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a structural schematic diagram of the pressure-bearing glass vacuum heat collecting tube of the present invention.

As shown in Figure 1, hot water outlet pipe 1, faucet 2, pressure relief safety valve 3, glass vacuum heat collector pipe 4, cold water inlet pipe 5, check valve 6, pressure switch valve 7, union box 8, and diversion pipe 9a, 9b, clamp ring 10, pipe plug 11, top block 12, tie bar 13, heat preservation material 14, pressure block 15, screw 16, rubber pad 17, rubber ring 18, rubber hose 19, electric heating tube 20, temperature sensor 21 .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Fig. 1, several large-diameter glass vacuum heat collecting tubes 4 are connected in series in series to form a heat collector by "L"-shaped plug-in guide tubes 9a and 9b, and the guide tube of the first heat collecting tube is connected to the cold water inlet pipe 5, The cold water inlet pipe is equipped with a check valve 6 and a pressure switch valve 7, the diversion pipe of the heat collecting pipe at the end is connected to the hot water outlet pipe 1, and a pressure relief safety valve 3 is connected in series to the hot water outlet pipe, and the first to fourth at the end Any one of the heat collecting tubes is inserted with a temperature sensor 21, and the two ends of the heat collector are installed on the joint box 8 respectively. The glass vacuum heat collecting tube 4 is provided with a self-controlled low-power electric heater 20, which is electrically heated when the light is insufficient. The heat collector can not only fully collect heat, but also be used as a thermal insulation water tank for both photoelectric and photoelectric purposes. The heat collecting surface of the collector is a flat surface, a curved surface, an arc surface or an irregular surface suitable for the shape of the building. It can be placed vertically, upside down, horizontally or obliquely. It is easy to install and achieves harmony and unity with the building, flat and beautiful. .

As shown in Fig. 2, the nozzle of the glass vacuum heat collecting tube 4 is flanged from the inside to the outside, and the outer wall of the lower part of the flange is covered with a clamp ring 10, the nozzle of the heat collecting tube is plugged with a pipe plug 11, and the sealing fit is filled with a rubber pad 17 And the rubber ring 18, the top surface of the pipe plug is connected with a top block 12, and a plurality of rubber hoses 19 are arranged inside the pipe plug, and two "L"-shaped splicing guide tubes 9a, 9b pass through the top block respectively from the rubber hoses in the pipe plug 11. 19 extends into the heat collecting tube, and an electric heating tube 20 fixed on the top block 12 also extends into the heat collecting tube through the rubber tube 19. An insulating material 14 is placed between the diversion tube and the top block, and pressure is placed on the diversion tube. A block 15 , a plurality of braces 13 extending upward from the periphery of the clamp ring 10 are bent to the top surface of the pressing block 15 , and are fastened on the pressing block 15 and the top block 12 by screws 16 .

One 9a of the "L"-shaped plugging guide tube extends into the inner cavity of the heat collecting tube close to the bottom through the tube plug, and the other 9b extends into the heat collecting tube and slightly extends out of the tube plug, and the other ends of the two guiding tubes are respectively inserted into the corresponding On the pipe plug adjacent to the tube mouth of the heat collecting tube, several glass heat collecting tubes can be connected in series through the "L" shape connecting guide tube to become a solar heat collector.

Large-diameter heat collecting tubes are connected in series through the diversion tube to form heat collectors with different shapes of heat collecting surfaces. The heat collector is also an insulated water tank; In the pipe plug, the pressure-bearing set is used to act on the pipe plug, thereby preventing the water pressure in the pipe from pushing the pipe plug and the inserted pipe fitting outward; inserting a small-power electric heating tube into each heat collecting tube; To the fourth, any one of the heat collecting tubes is inserted with a temperature sensor, which is used for water temperature detection and timing, detection of constant temperature electric supplementary heating, and early detection and alarm of running out of hot water. Due to the adoption of the above unique design, the photoelectric integrated water tankless pressurized solar water heater becomes a reality.

When using hot water, turn on the faucet 2, and when the pressure in the heat collector drops to a certain value, the pressure switch valve 7 will be opened, and at the same time, the electric heating power supply will be cut off automatically, and the hot water will be pushed up from the first heat collector tube at the water inlet by cold water under pressure. To the end of the heat collecting tube, there is pressurized hot water in the heat collecting tube to spray out from the faucet. Turn off the water tap, when the pressure in the heat collector rises to a certain value, the pressure switch valve 7 is closed, and the electric heating returns to the standby state. When electric heating or solar heating increases the internal pressure of the collector to a certain value, the pressure relief safety valve 3 on the hot water pipe will automatically open, and will automatically close when the pressure reaches a certain value. Because the pressure-bearing set attached to the nozzle of the heat-collecting pipe bears the pressure of tap water on the heat-collecting pipe, the single pipe of the heat-collecting pipe can bear more than 6 kilograms of water pressure.

Claims (4)

1, a kind of Weather non-water tank pressure-bearing solar water heater, mainly comprise thermal-collecting tube (4), hot water outlet pipe (1), cold water inlet (5), it is characterized in that: some glass heat-collecting vacuum tubes (4) patch mozzle (9) through " L " shape and are connected into heat collector, the cold water inlet of first thermal-collecting tube (5) is provided with check-valves (6) and pressure opening and closing valve (7), the hot water outlet pipe of end thermal-collecting tube (1) goes up serial connection one pressure relief safety valve (3), is inserted with temperature sensor (21) in the wherein any thermal-collecting tube in end first to fourth;

Glass heat-collecting vacuum tube (4) mouth of pipe outward flanging, flange mouth lower tube outer wall is with a clamping ring (10), the thermal-collecting tube mouth of pipe is plugged with pipe close (11), and rubber cushion (17) and cushion rubber (18) are filled by the place of being sealed and matched, the pipe close end face connects a jacking block (12), be interspersed with two " L " shapes of stretching in the thermal-collecting tube on pipe close and the jacking block and patch mozzle (9a) (9b), be pressed with briquetting (15) on the mozzle, clamping ring (10) periphery extends upward many tie rods (13) and is bent to briquetting (15) end face, is anchored on briquetting and the jacking block by screw (16).

2, Weather non-water tank pressure-bearing solar water heater according to claim 1 is characterized in that:, be provided with automatic control small power electric heater (20) in every glass heat-collecting vacuum tube, thermal-collecting tube is a heat collector, is again the dual-purpose attemperater of photoelectricity.

3, Weather non-water tank pressure-bearing solar water heater according to claim 1, it is characterized in that: " L " shape patches mozzle one root (9a) and stretches into the thermal-collecting tube inner chamber near the bottom through pipe close, another root (9b) slightly stretches out pipe close, and the other end of two mozzles inserts respectively on the pipe close of the Neighbor Set heat pipe mouth of pipe.

4, Weather non-water tank pressure-bearing solar water heater according to claim 1, it is characterized in that: patch heat collector surface that mozzle is connected into heat collector through " L " shape and be platen surface, curved surface, cambered surface or irregular, but disposed upright, inversion, horizontal positioned or tilt to place.

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