CN202092321U - Non-pressure-bearing solar water heater with no water tank - Google Patents

Abstract

A tankless non-pressurized solar water heater mainly includes a water inlet pipe (6), a water outlet pipe (7), a water suction pipe (10), a circulation pipe (8), a mixing heating chamber (15), a vacuum heat collecting pipe (14), an electric The heater (20) and self-priming pump (1) are composed of a heater (20) and a self-priming pump (1). Its operating characteristics are: when the water level and water temperature in the heat collection pipe change, the water inlet pipe injects cold water into each heat collection pipe in equal amounts, and when the faucet is opened or When electric heating is required, the water in each heat collecting tube (14) enters into the mixed heating chamber (15) in equal amounts from the water suction pipe (10) and then mixed and heated to the faucet or to each heat collecting tube (14) in equal amounts respectively. ) to form a heating mixing cycle. The beneficial effects of the utility model are: the heat collecting tube collects heat and stores water and operates under no pressure; an electric heater is set in the mixing heating chamber to set the water temperature and water quantity to be heated according to the needs; The water in the tube can be used completely.

Description

Tankless Unpressurized Solar Water Heater

Technical field

The utility model relates to a tankless non-pressurized solar water heater, in particular to a tankless solar water heater which can be integrated with a balcony building. the

technical background

The existing tankless solar water heater is formed by connecting several large-diameter vacuum heat collecting tubes in series or in parallel, and the vacuum heat collecting tubes collect heat and store water. The inside of the vacuum heat collecting tube is arranged as a sealed cavity, and a water inlet pipe and a water outlet pipe are arranged on it, and the water inlet pipe extends into the bottom thereof, and the water outlet pipe is arranged on the top thereof. The series connection is: the outlet pipe on the last vacuum tube is connected to the water inlet pipe on the next vacuum tube, all the vacuum tubes are connected in series, tap water is pressed in from the inlet pipe of the first vacuum tube, and hot water is ejected from the outlet pipe of the last vacuum tube . Parallel connection is: the water inlet and outlet pipes on all the vacuum tubes are connected in parallel with the total water inlet pipe and the total water outlet pipe respectively, and the tap water is pressed into the bottom of each vacuum tube by the pressure of the tap water from the total water inlet pipe to push out each vacuum tube The hot water in the upper part is discharged from the main outlet pipe. Its operating characteristics: rely on the pressure of tap water to press into the cold water to push out the hot water. Its advantages are: 1: No water tank saves space and can be integrated with the building. 2: No power requirement, use the pressure of tap water itself. Its shortcoming is: 1: all water storage pipes, pipe connections and sealing facilities all need pressure-bearing operation, and its own requirements and installation requirements are higher and increase cost. 2: All water storage pipes and pipe connections are filled with water at all times. When continuous heating, the steam generated after the hot water boils will further increase the pressure in the pipes and cause damage to the entire system. 3: When used in series, if all the hot water cannot be used up the day before, there will be two parts of water with different basic temperatures in the tube, and there will also be two parts of hot water with different temperatures after being heated by the sun. inconvenient. When used in parallel, because each heat collecting tube is filled with cold water and hot water is pushed out, the cold water and hot water cannot be completely separated, and there will be mixed water, resulting in a reduction in hot water utilization. 4: Electric heating cannot be used well, or an electric heater is installed in each heat collecting tube to increase the cost. the

Utility model content

The purpose of the utility model is to overcome the shortcomings of the existing tankless solar water heater and provide a new structure tankless non-pressurized solar water heater. Its operating characteristics: when the water level and water temperature in the heat collecting tube change, the tap water injects cold water into each heat collecting tube in equal amounts from the water inlet pipe, and when the faucet is turned on or when electric heating is required, the water in each heat collecting tube is respectively equal. The amount enters the mixing heating chamber from the water suction pipe, mixes and heats, and then goes to the faucet or equal amounts to each heat collecting tube to form a heating and mixing cycle. Its characteristics are: the solar vacuum heat collecting tube is both a heat collecting tube and a water storage tube. The heat absorbed by the heat collecting tube is directly transferred to the water without other heat transfer medium. The heat collecting tube and its tube connection do not need to bear pressure, and its bearing pressure is equal to the pressure of the outside atmosphere. There is no subsection water temperature and mixed water part in the water in all heat collecting tubes. Whether it is solar heating or electric heating, the outlet water temperature is consistent. The water in the heat collecting tube can all be used up. An electric heater is arranged in one heat collecting tube to heat water at the same temperature in all heat collecting tubes. The distance between each heat collecting tube can be zero to increase the sunlight utilization rate of the installation area. the

In order to achieve the above purpose, the solar water heater is mainly provided with: solar support, water inlet pipe (6), water outlet pipe (7), water suction pipe (10), circulation pipe (8), mixing heating chamber (15), vacuum heat collecting pipe (14) ), an electric heater (20), a self-priming pump (1), and several water inlet pipes (18) are connected in parallel on the water inlet pipe (6) and extend into each vacuum heat collecting pipe (14) respectively; A self-priming pump (1) is connected in series on the water pipe (7), and one end of the water outlet pipe (7) extends into the bottom end of the mixing heating chamber (15) and is connected with the water tap (5); the water suction pipe (10) is connected in parallel with Some water suction pipes (16) extend into the bottom of each vacuum heat collecting pipe (14) respectively, and one end of the water suction pipe (10) is closed and the other end is connected to the mixing heating chamber (15); One end of the water pipe (6) is connected to the water outlet pipe (7): the mixing heating chamber (15) is a combination of a nozzle sealing plug (31) arranged on a vacuum heat collecting tube, and the nozzle sealing plug (31) is respectively connected to the water-absorbing The pipe (10) and the water outlet pipe (7) are hermetically connected, and the mixing heating chamber (15) can also be other cavities as an improvement; the electric heater (20) is arranged in the mixing heating chamber (15). the

As an improvement, it is possible to increase the setting of exhaust and suction pipes (11), water replenishment pipes (9), and exhaust check valves (19). The exhaust pipes (11) are connected in parallel with several exhaust and suction pipes (17) that extend respectively. Into each vacuum heat collection tube (14), one end of the exhaust and suction pipe (11) is closed and the other end communicates with the outside air; one end of the water supply pipe (9) is sealed with the mixing heating chamber (15) and the other end is connected to the circulation pipe (8 ) or the water inlet pipe (6); the exhaust one-way valve (19) is arranged on the mixing heating chamber (15) and is sealingly connected with the nozzle sealing plug (31). the

A solenoid valve 1 (2), a solenoid valve 2 (3) and a solenoid valve 3 (4) are respectively arranged on the water inlet pipe (6), the circulation pipe (8) and the water supply pipe (9). the

A temperature control switch (24) (28), a water level switch (23) (25) (26) (27) is arranged in the vacuum heat collecting tube (14), and a water level switch (21) (22) is arranged in the mixing heating chamber . the

The electrical connection relationship between the electrical components is: the water level switch 2 (22) is connected in series with the self-priming pump (1) to form an AB combination, the A terminal is connected to the - pole, and the B terminal is connected to the + pole; the water level switch 1 (21) is connected to the solenoid valve 3(4) are connected in parallel with solenoid valve 1(2) to form a CD combination after being connected in series. HG combination is formed in series after parallel connection, HG combination and JI on the timing switch (30) are connected in series to form JG combination, water level switch 3 (23) and temperature control switch 1 (24) are connected in series and then combined with JG in parallel to form MN combination, MN combination It is connected in series with the CD combination, the M terminal is connected to the - pole, and the D terminal is connected to the + pole; after the solenoid valve 2 (3) is connected in parallel with the electric heater (20), it is connected in series with the temperature control switch (28) to form an OP combination, and the O terminal is connected to the I terminal. The P terminal is connected to the L terminal. the

The beneficial effect of the utility model is that the heat collecting tubes and tube connections do not need to bear any pressure. Setting an electric heater in a heat collecting tube can heat the water in each heat collecting tube simultaneously. The water volume and temperature of electric heating can be set freely. When using hot water, the outlet water temperature is consistent. The water in each heat collecting tube can all be used up. The distance between two adjacent heat collecting tubes can be zero to increase the sunlight utilization rate of the installation area. the

Description of drawings

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

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

Fig. 2 is the electrical connection circuit diagram between each electrical component in the utility model. the

In the figure: 1. Self-priming pump. 2. Solenoid valve 1. 3. Solenoid valve 2. 4. Solenoid valve 3. 5. Faucet. 6. Water inlet pipe. 7. Outlet pipe. 8. Circulation tube. 9. Make up the water pipe. 10. Suction pipe. 11. Exhaust suction pipe. 12. Upper bracket. 13. Lower bracket. 14. Vacuum collector tube. 15. Mixing heating chamber. 16. A suction pipe. 17. Branch row suction pipe. 18. Branch into the water pipe. 19. Exhaust check valve. 20. Electric heater. 21. Water level switch 1. 22. Water level switch 2. 23. Water level switch 3. 24. Temperature control switch 1. 25. Water level switch 4. 26. Water level switch 5. 27. Water level switch 6. 28. Temperature control switch 2. 29. Multi-speed switch. 30. Switch (timing switch). 31. Orifice sealing plug. 32. Silicone flat pads. the

Detailed ways

1. In Fig. 1: several water inlet pipes (18) are connected in parallel on the water inlet pipe (6) and extend into each vacuum heat collecting pipe (14) respectively. A self-priming pump (1) is connected in series on the water outlet pipe (7), and one end of the water outlet pipe (7) extends into the bottom end of the mixing heating chamber (15) and is connected with the water tap (5). The water suction pipe (10) is connected in parallel with several water suction pipes (16) extending into the bottom of each vacuum heat collector (14) respectively, and one end of the water suction pipe (10) is closed and the other end is connected to the mixing heating chamber (15). One end of the circulation pipe (8) is connected with the water inlet pipe (6) and the other end is connected with the water outlet pipe (7). The mixing heating chamber (15) is a combination of a nozzle sealing plug (31) being arranged on a vacuum heat collecting tube, and the nozzle sealing plug (31) is sealed and connected with the water suction pipe (10) and the water outlet pipe (7) respectively, as an improved mixing The heating chamber (15) can also be other chambers. The electric heater (20) is arranged in the mixing heating chamber (15). The exhaust and suction pipes (11) are connected in parallel with several branch exhaust and suction pipes (17) stretching into each vacuum heat collecting tube (14) respectively, and one end of the exhaust and suction pipes (11) is closed and the other end communicates with the outside air. One end of the water supply pipe (9) is sealed to the mixing heating chamber (15) and the other end is connected to the circulation pipe (8) or the water inlet pipe (6). The exhaust one-way valve (19) is arranged on the mixing heating chamber (15) and is in sealing connection with the nozzle sealing plug (31). A solenoid valve 1 (2), a solenoid valve 2 (3) and a solenoid valve 3 (4) are respectively arranged on the water inlet pipe (6), the circulation pipe (8) and the water supply pipe (9). A temperature control switch (24) (28), a water level switch (23) (25) (26) (27) are arranged in the vacuum heat collecting tube (14), and a water level switch (21) (22) is arranged in the mixing heating chamber. the

2. In Fig. 2, the water level switch 2 (22) is connected in series with the self-priming pump (1) to form an AB combination, the A terminal is connected to the - pole, and the B terminal is connected to the + pole; the water level switch 1 (21) is connected in series with the solenoid valve 3 (4) After that, the electromagnetic valve 1 (2) is connected in parallel to form a CD combination, and the water level switch 4 (25), the water level switch 5 (26), and the water level switch 6 (27) are respectively connected in series with the three ends of the multi-speed switch (29) and then connected in parallel to form a HG combination, the HG combination is connected in series with the JI on the timing switch (30) to form the JG combination, the water level switch 3 (23) is connected in series with the temperature control switch 1 (24) and then connected in parallel with the JG combination to form the MN combination, and the MN combination is connected in series with the CD combination. M terminal is connected to - pole, D terminal is connected to + pole; solenoid valve 2 (3) is connected in parallel with electric heater (20) and then connected in series with temperature control switch (28) to form OP combination, O terminal is connected to I terminal, P terminal is connected to L terminal . the

Claims (6)

1. A tankless non-pressurized solar water heater, characterized in that: it mainly includes a water inlet pipe (6), an outlet pipe (7), a water suction pipe (10), a mixing heating chamber (15), and a vacuum heat collecting pipe (14) , constitute, on the described water inlet pipe (6) there are several branch water inlet pipes (18) that extend into each vacuum heat collecting pipe (14) in parallel on the described water inlet pipe (6); one end of the described water outlet pipe (7) extends into the mixing heating chamber (15 ) is connected with the water tap (5); the water suction pipe (10) is connected in parallel with several water suction pipes (16) stretching into the bottom of each vacuum heat collecting pipe (14) respectively, and one end of the water suction pipe (10) Closed one end is connected to the mixing heating chamber (15); the mixing heating chamber (15) is a sealed cavity and is respectively sealed and connected with the water suction pipe (10) and the water outlet pipe (7), as an improved mixing heating chamber (15) is a A combination of nozzle sealing plugs (31) is arranged on the vacuum heat collecting tube (14). 2. The non-pressurized solar water heater without a water tank according to claim 1, characterized in that: as an improvement, a circulation pipe (8), an electric heater (20), a self-priming pump (1), and an exhaust and suction pipe ( 11), water supply pipe (9), exhaust one-way valve (19), one end of the circulation pipe (8) is connected to the water inlet pipe (6) and the other end is connected to the water outlet pipe (7) and set on the circulation pipe (8) Electromagnetic valve 2 (3) is arranged; the electric heater (20) is arranged in the mixing heating chamber (15); the self-priming pump (1) is connected in series on the water outlet pipe (7); the exhaust suction pipe ( 11) There are a number of exhaust suction pipes (17) connected in parallel to each of the vacuum heat collecting tubes (14), and one end of the air suction pipe (11) is closed and the other end communicates with the outside air; One end is sealingly connected with the mixing heating chamber (15) and the other end is connected to the circulation pipe (8) or the water inlet pipe (6) and an electromagnetic valve 3 (4) is arranged on the water supply pipe (9); the exhaust check valve (19) It is arranged on the mixing heating chamber (15) and is connected with it in a sealed manner. 3. The tankless non-pressurized solar water heater according to claim 1, characterized in that: a solenoid valve 1 (2) is arranged on the water inlet pipe (6). 4. The tankless non-pressurized solar water heater according to claim 1, characterized in that: a temperature control switch (24) (28), a water level switch (23) (25) ( 26) (27), a water level switch (21) (22) is arranged in the mixing heating chamber (15). 5. The tankless non-pressurized solar water heater according to claim 1 or 2 or 3 or 4, characterized in that: the electrical connection between the electrical components, the water level switch 2 (22) and the self-priming pump (1) AB combination is formed in series, A terminal is connected to - pole, and B terminal is connected to + pole; water level switch 1 (21) is connected in series with solenoid valve 3 (4) and then connected in parallel with solenoid valve 1 (2) to form CD combination, water level switch 4 (25) , water level switch 5 (26), water level switch 6 (27) form HG combination in parallel with three ends of multi-gear switch (29) in series respectively, HG combination forms JG combination with JI on the timing switch (30) in series connection, water level Switch 3 (23) is connected in series with temperature control switch 1 (24) and then connected in parallel with JG combination to form MN combination, MN combination and CD combination are connected in series, M terminal is connected to - pole, D terminal is connected to + pole; After the electric heater (20) is connected in parallel, the temperature control switch (28) is connected in series to form an OP combination, the O terminal is connected to the I terminal, and the P terminal is connected to the L terminal. 6. The tankless non-pressurized solar water heater according to claim 1, characterized in that the distance between the vacuum heat collecting tubes (14) is at least zero. the

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