Pressure-bearing vacuum tube integrated machine

Abstract

The application discloses a pressure-bearing vacuum tube integrated machine, which comprises a support, a water tank, a base, vacuum heat collecting tubes and a water delivery pipe. The water tank is provided with a water outlet pipe and a water inlet pipe. The water outlet pipe is provided with a water outlet pipe valve. The pressure-bearing vacuum tube integrated machine further comprises a water inlet pipe valve, which is installed on the water inlet pipe. A pressure boosting mechanism is installed on the water inlet pipe and located between the water inlet pipe valve and the water tank. The pressure boosting mechanism is used for further boosting the water in the inner cavity of the vacuum heat collecting tube. A high-pressure water drainage mechanism comprises a main pipe body, which is in intercommunication connection with the upper end of the vacuum heat collecting tube. The tail end and the middle part of the main pipe body are in intercommunication connection with an air inlet pipe and a water jet head, respectively. A one-way valve is installed in the air inlet pipe. A first piston is arranged in the main pipe body. A piston inner hole is arranged in the first piston. The application can effectively avoid the problem that the water tank and the vacuum heat collecting tube are full of water, frozen, cracked and the inner liner of the water tank and the vacuum heat collecting tube are expanded.

Description

Technical Field

[0001] This invention belongs to the field of solar water heater technology, and particularly relates to an integrated pressurized vacuum tube unit. Background Technology

[0002] A vacuum tube integrated water heater, also known as a vacuum tube solar water heater, is a device that uses solar energy to heat water and store the hot water in the system for supply.

[0003] Vacuum tube integrated water heaters are generally divided into two types based on the working pressure of the water tank: pressurized and non-pressurized. Non-pressurized vacuum tube integrated water heaters refer to those whose water tanks cannot withstand the water pressure in the tap water pipes. They typically operate using gravity flow, with the water flow driven by the height difference of the water tank. Therefore, the water tank is generally required to be installed at a position higher than the point of use, and the water flow relies on gravity. Pressurized vacuum tube integrated water heaters refer to those whose water tanks can withstand the pressure of the tap water in the pipes. Their water tanks are connected to the household tap water system, and the water inside the tank and vacuum tubes always maintains the same water pressure as the tap water system. When the faucet is turned on, the inlet pipe will simultaneously introduce water to maintain the water pressure, thus providing a stable supply of hot water without being affected by unstable water flow.

[0004] For pressurized vacuum tube integrated water heaters, to maintain the same water pressure as the household tap water system, the water tank and vacuum tubes need to be kept full of water at all times. In some cold regions, during rainy or snowy weather, not only can solar heating not be used, but the water in the tank and vacuum tubes can also freeze. The increased volume of the frozen water can easily crack the inner tank and vacuum tubes, leading to equipment damage and unusability. To solve these problems, this invention proposes a pressurized vacuum tube integrated water heater. Summary of the Invention

[0005] To address the problems in the prior art, the present invention proposes the following technical solution:

[0006] The pressurized vacuum tube integrated unit includes a bracket, a water tank, a base, vacuum collector tubes, and a water supply pipe. The water tank is equipped with an outlet pipe and an inlet pipe, and the outlet pipe is fitted with an outlet valve. The pressurized vacuum tube integrated unit also includes:

[0007] Inlet pipe valve, wherein the inlet pipe valve is installed on the inlet pipe;

[0008] A pressurizing mechanism is installed on the water inlet pipe and located between the water inlet pipe valve and the water tank. The pressurizing mechanism is used to further pressurize the water in the inner cavity of the vacuum collector tube.

[0009] A high-pressure drainage mechanism includes a main body that is interconnected with the upper end of a vacuum heat collection tube. An air inlet pipe and a water spray head are interconnected at the tail end and the middle part of the main body, respectively. A one-way valve is installed inside the air inlet pipe. A first piston is provided inside the main body. A piston inner hole is provided inside the first piston.

[0010] After the inlet valve is closed, the pressurizing mechanism further pressurizes the water in the inner cavity of the vacuum collector tube. Under the pressure, the inner hole of the piston and the water nozzle are connected and the water in the inner cavity of the vacuum collector tube is discharged under high pressure. External air enters the inner cavity of the vacuum collector tube through the one-way valve to supplement the water discharged under high pressure.

[0011] As a preferred embodiment of the above technical solution, the head of the water spray nozzle is inclined and faces the upper surface of the vacuum heat collection tube.

[0012] As a preferred embodiment of the above technical solution, a reflector is installed on both the bracket and the base, and the reflector is located below the vacuum heat collection tube.

[0013] As a preferred embodiment of the above technical solution, the water supply pipe is covered with a sponge sleeve, and a frame is provided around the sponge sleeve, which is fixedly connected to the upper surface of the reflector.

[0014] As a preferred embodiment of the above technical solution, the high-pressure drainage mechanism further includes a magnetic ring fixedly connected in the inner cavity of the main tube and a magnetic plate movably disposed in the inner cavity of the main tube, with a spring fixedly connected between the magnetic plate and the inner wall of the top of the main tube.

[0015] The end of the first piston away from the vacuum heat collection tube is fixedly connected to a support column, which passes through the magnetic ring and abuts against the magnetic plate.

[0016] As a preferred embodiment of the above technical solution, the head end of the main body is provided with a first flat pressure hole.

[0017] As a preferred embodiment of the above technical solution, the pressurizing mechanism includes an outer casing fixedly installed around the water inlet pipe, and a connecting pipe fixedly installed inside the outer casing. The head end of the connecting pipe is conical and connected to the water inlet pipe.

[0018] The connecting pipe is equipped with a second piston inside, and the outer casing is equipped with a drive assembly inside, which is used to move the second piston within the cavity of the connecting pipe.

[0019] As a preferred embodiment of the above technical solution, the drive assembly includes a micro motor fixedly installed on the inner wall of the outer casing. The output shaft of the micro motor is fixedly connected to a reciprocating lead screw. A lead screw sleeve is installed around the reciprocating lead screw. One side of the lead screw sleeve is slidably connected to the inner wall of the outer casing, and a connecting strip is fixedly connected between the other side and the second piston.

[0020] As a preferred embodiment of the above technical solution, a second flat pressure hole is provided on the outer casing;

[0021] The outer wall of the connecting pipe has a connecting hole, and the connecting strip moves through the connecting hole.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. In the case of the pressure-bearing vacuum tube integrated machine of the present invention, in order to prevent the water tank and vacuum collector tube from freezing and cracking due to full water filling the water tank and vacuum collector tube when the temperature is low and the weather conditions are bad, the water inlet valve is closed after the water inlet pipe is filled. Then the pressurization mechanism works to further pressurize the water in the inner cavity of the vacuum collector tube. Under the action of greater water pressure, the first piston moves so that the inner hole of the piston and the water nozzle are connected and the water in the inner cavity of the vacuum collector tube is discharged under high pressure. Finally, the first piston returns to the initial position, and external air enters the inner cavity of the vacuum collector tube through the one-way valve to supplement the water discharged under high pressure. At this time, since the water inlet valve is closed, water cannot be supplied to the water tank. At the same time, some air is rushed into the inner cavity of the vacuum collector tube. This avoids the problem of the water tank and vacuum collector tube freezing and cracking due to full water filling the water tank and vacuum collector tube.

[0024] 2. In this invention, the nozzle tip is angled and faces the upper surface of the vacuum collector tube. The pressurization mechanism further pressurizes the water inside the vacuum collector tube. Under the greater water pressure, the first piston moves, connecting the piston's inner hole with the nozzle and discharging the water from the inner cavity of the vacuum collector tube under high pressure. The discharged water is sprayed at high pressure onto the upper surface of the vacuum collector tube through the nozzle, which can clean the floating dust on the upper surface of the vacuum collector tube and reduce the impact of floating dust on the absorption of solar energy by the vacuum collector tube. Attached Figure Description

[0025] Figure 1 The diagram shown is a three-dimensional structural schematic of the pressure-bearing vacuum tube integrated machine in the embodiment;

[0026] Figure 2 What is shown is Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 The diagram shown is a partial schematic of the connection between the main body and the vacuum heat collection tube in the integrated pressurized vacuum tube unit of the embodiment;

[0028] Figure 4 The diagram shown is a top view of the outer casing of the integrated pressure vacuum tube unit in the embodiment.

[0029] Figure 5 The diagram shown is a schematic diagram of the internal structure of the outer casing of the pressurization mechanism in the pressurized state of the integrated pressurized vacuum tube machine in the embodiment.

[0030] Figure 6The diagram shown is a schematic of the internal structure of the main tube in the pressurization state of the pressurization mechanism in the integrated pressurized vacuum tube machine of the embodiment;

[0031] Figure 7 The diagram shown is a schematic of the internal structure of the outer casing of the pressurization mechanism in the non-pressurization state of the integrated pressurized vacuum tube machine in the embodiment.

[0032] Figure 8 The diagram shown is a schematic of the internal structure of the main tube in the non-pressurized state of the pressurization mechanism in the integrated pressurized vacuum tube machine of the embodiment.

[0033] In the diagram: 10. Bracket; 11. Water tank; 12. Base; 13. Vacuum collector tube; 14. Water outlet pipe; 141. Water outlet valve; 15. Water inlet pipe; 151. Water inlet valve; 16. Water delivery pipe; 161. Sponge sleeve; 20. Reflector; 21. Frame sleeve; 30. High-pressure drainage mechanism; 31. Main pipe; 32. Air inlet pipe; 320. One-way valve; 33. Spray head; 34. First pressure equalization hole; 35. First piston; 351. Piston inner hole; 36. Support column; 37. Magnetic ring; 38. Magnetic plate; 39. Spring; 40. Pressurization mechanism; 41. Outer casing; 42. Second pressure equalization hole; 43. Connecting pipe; 44. Second piston; 45. Connecting strip; 46. Micro motor; 47. Reciprocating lead screw; 48. Lead screw sleeve; 49. Stabilizing plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0035] Example

[0036] like Figure 1 , Figure 2As shown, the pressurized vacuum tube integrated machine includes a bracket 10, a water tank 11, a base 12, vacuum collector tubes 13, and a water supply pipe 16. The water tank 11 is equipped with an outlet pipe 14 and an inlet pipe 15, and the outlet pipe 14 is fitted with an outlet valve 141. The working principle of the pressurized vacuum tube integrated machine during daily use is as follows: hot and cold water in the water tank 11 are usually separated into layers, a phenomenon called temperature stratification. Specifically, the hot water has a higher temperature, while the cold water has a lower temperature. The density of water is inversely proportional to its temperature: that is, hot water has a lower density, and cold water has a higher density. Based on this physical property, hot water naturally floats to the top of the water tank 11, while cold water settles to the bottom. Cold water enters through the inlet pipe 15 at the bottom of the water tank 11. Due to its higher density, the cold water naturally settles to the bottom of the tank, preventing direct mixing with the heated hot water. Hot water flows out through the outlet pipe 14 at the top of the tank 11. Because the hot water is located at the top, it is the first thing to flow when the user turns on the hot water tap, ensuring stable water flow and ideal water temperature. During solar heating, the heat-absorbing coating on the inner wall of the vacuum collector tube 13 absorbs sunlight to heat the water inside the tube. The heated water rises and collects in the water tank 11 for storage. Meanwhile, cold water at the bottom of the tank enters from the lower end of the vacuum collector tube 13 through the water supply pipe 16, forming a complete circulating heating system.

[0037] The integrated pressure-bearing vacuum tube machine of the present invention also includes:

[0038] Water inlet valve 151 is installed on water inlet pipe 15;

[0039] The pressurization mechanism 40 is installed on the water inlet pipe 15 and located between the water inlet pipe valve 151 and the water tank 11. The pressurization mechanism 40 is used to further pressurize the water in the inner cavity of the vacuum collector tube 13.

[0040] The high-pressure drainage mechanism 30 includes a main body 31 that is interconnected with the upper end of the vacuum heat collection tube 13. The tail end and the middle part of the main body 31 are respectively interconnected with an air inlet pipe 32 and a water spray head 33. A one-way valve 320 is installed inside the air inlet pipe 32. A first piston 35 is provided inside the main body 31. A piston inner hole 351 is provided inside the first piston 35.

[0041] The working principle of this invention is as follows: When the temperature is low and the weather conditions are poor, in order to prevent the water tank 11 and the vacuum collector tube 13 from freezing due to full water, the water inlet valve 151 is closed after the water inlet pipe 15 is filled with water. Then, the pressurization mechanism 40 works to further pressurize the water in the inner cavity of the vacuum collector tube 13. Under the action of greater water pressure, the first piston 35 moves so that the piston inner hole 351 and the water spray head 33 are connected and the water in the inner cavity of the vacuum collector tube 13 is discharged under high pressure. Finally, the first piston 35 returns to the initial position, and external air enters the inner cavity of the vacuum collector tube 13 through the one-way valve 320 to supplement the water discharged under high pressure. At this time, since the water inlet valve 151 is closed, water cannot be supplied to the water tank 11. At the same time, some air is rushed into the inner cavity of the vacuum collector tube 13. This avoids the problem of the water tank 11 and the vacuum collector tube 13 freezing due to full water and cracking of the inner tank of the water tank 11 and the vacuum collector tube 13. It should be noted that when the weather improves and the equipment can be put back into operation, simply open the water inlet valve 151 to restore the water tank 11 and vacuum collector tube 13 to a full state of water.

[0042] like Figure 3 As shown, the tip of the water nozzle 33 is angled and faces the upper surface of the vacuum collector tube 13. The pressurization mechanism 40 further pressurizes the water inside the vacuum collector tube 13. Under this increased water pressure, the first piston 35 moves, connecting the piston's inner hole 351 with the water nozzle 33 and discharging the water from the inner cavity of the vacuum collector tube 13 under high pressure. The discharged water is then sprayed at high pressure through the water nozzle 33 onto the upper surface of the vacuum collector tube 13, effectively cleaning the surface dust and reducing the impact of dust on solar energy absorption. In practical applications, this process can be repeated to achieve even better cleaning of the surface dust on the upper surface of the vacuum collector tube 13.

[0043] like Figure 1 , Figure 2 As shown, a reflector 20 is mounted on both the bracket 10 and the base 12, and the reflector 20 is located below the vacuum collector tube 13. By setting the reflector 20, sunlight can be reflected to the vacuum collector tube 13, further improving the utilization and absorption of solar energy by the vacuum collector tube 13.

[0044] The water supply pipe 16 is covered with a sponge pad 161, which serves to insulate and protect the water supply pipe 16. A frame 21 is provided around the sponge pad 161, and the frame 21 is fixedly connected to the upper surface of the reflector 20. The frame 21 is used to assist in the positioning and fixing of the sponge pad 161, thereby helping to fix the water supply pipe 16.

[0045] like Figures 5-8As shown, the high-pressure drainage mechanism 30 also includes a magnetic ring 37 fixedly connected in the inner cavity of the main tube 31 and a magnetic plate 38 movably disposed in the inner cavity of the main tube 31; a support column 36 is fixedly connected to one end of the first piston 35 away from the vacuum heat collection tube 13, the support column 36 passes through the magnetic ring 37 and abuts against the magnetic plate 38, and a spring 39 is fixedly connected between the magnetic plate 38 and the inner wall of the top of the main tube 31.

[0046] The pressurization mechanism 40 includes an outer casing 41 fixedly installed around the water inlet pipe 15. A connecting pipe 43 is fixedly installed inside the outer casing 41. The head end of the connecting pipe 43 is conical and connected to the water inlet pipe 15. A second piston 44 is provided inside the connecting pipe 43. A drive assembly is provided inside the outer casing 41, and the drive assembly is used for the movement of the second piston 44 within the cavity of the connecting pipe 43.

[0047] In daily use, the integrated pressure vacuum tube machine is just like... Figure 8 As shown, at this time, the water in the inner cavity of the vacuum collector tube 13 and the tap water pipe are under the same positive pressure, and external air cannot enter through the one-way valve 320; at this time, under the combined action of the magnetic ring 37, the magnetic plate 38 attraction and the elastic pressure of the spring 39, the bottom end of the first piston 35 is squeezed against the outer wall of the part of the air inlet pipe 32 extending into the inner cavity of the main body 31, and the piston inner hole 351 and the water spray head 33 are misaligned. When the pressurization mechanism 40 is needed to pressurize and drain, first close the water inlet pipe valve 151, and then the working principle of the high-pressure drainage mechanism 30 and the pressurization mechanism 40 is as follows: Figure 5 As shown, the drive assembly moves the second piston 44 toward the head end of the connecting pipe 43, squeezing the water inside the vacuum collector tube 13, thereby pressurizing the water inside the vacuum collector tube 13. When a certain pressure is reached, it breaks through the combined force of the magnetic ring 37, the magnetic plate 38, and the elastic pressure of the spring 39, as... Figure 6 As shown, the first piston 35 drives the support column 36 to lift the magnetic plate 38, causing the magnetic plate 38 and the magnetic ring 37 to separate. The spring 39 is further compressed. At this time, the piston inner hole 351 is connected to the water spray head 33, and part of the water in the inner cavity of the vacuum heat collection tube 13 is discharged under high pressure from the water spray head 33 through the piston inner hole 351. Then, the drive component in the pressurization mechanism 40 drives the second piston 44 to move to the initial position, i.e. Figure 7 As shown, the interior of the main body 31 at this time is as follows Figure 8 As shown, under the elastic action of spring 39, the magnetic plate 38 is squeezed back to its initial position and attracted to the magnetic ring 37. Under the connection of support column 36, the bottom end of the first piston 35 is driven to press against the outer wall of the part of the air inlet pipe 32 extending to the inner cavity of the main body 31. As the water in the inner cavity of the vacuum heat collection tube 13 is squeezed out and the second piston 44 gradually returns to its initial position, a negative pressure is formed in the inner cavity of the vacuum heat collection tube 13. External air enters from the one-way valve 320 to supplement the part of the high-pressure water discharge.

[0048] The head end of the main body 31 is provided with a first flat pressure hole 34; by setting the first flat pressure hole 34, it plays the role of balancing the cavity between the magnetic plate 38 and the inner wall of the top of the main body 31, and avoids the formation of positive and negative pressure in the cavity, which would affect the normal operation of the equipment.

[0049] The drive assembly includes a micro motor 46 fixedly mounted on the inner wall of the outer housing 41. The output shaft of the micro motor 46 is fixedly connected to a reciprocating lead screw 47. A lead screw sleeve 48 is installed around the reciprocating lead screw 47. One side of the lead screw sleeve 48 is slidably connected to the inner wall of the outer housing 41, and the other side is fixedly connected to the second piston 44 with a connecting strip 45.

[0050] like Figure 4 As shown, a second pressure equalization hole 42 is provided on the outer casing 41; by setting the second pressure equalization hole 42, the air pressure inside the outer casing 41 is balanced, so as to avoid the formation of positive and negative pressure inside the outer casing 41 and affect the normal operation of the equipment.

[0051] The outer wall of the connecting pipe 43 has a connecting hole, and the connecting strip 45 moves through the connecting hole. It should be noted that during the movement of the second piston 44, the head end of the connecting pipe 43 is always in a sealed state.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A pressure-bearing vacuum tube integrated machine, comprising a support (10), a water tank (11), a base (12), a vacuum heat collecting tube (13) and a water feeding pipe (16), a water outlet pipe (14) and a water inlet pipe (15) are installed on the water tank (11), a water outlet pipe valve (141) is arranged on the water outlet pipe (14), characterized in that, The pressure-bearing vacuum tube integrated machine further comprises: A water inlet pipe valve (151) installed on the water inlet pipe (15); A pressurizing mechanism (40) installed on the water inlet pipe (15) between the water inlet pipe valve (151) and the water tank (11), and used for further pressurizing the water in the inner cavity of the vacuum heat collecting tube (13); The pressurizing mechanism (40) further comprises an outer box body (41) fixedly installed on the periphery of the water inlet pipe (15), and a communication pipe (43) fixedly installed in the inner cavity of the outer box body (41), wherein the head end of the communication pipe (43) is tapered and communicates with the water inlet pipe (15); The inner cavity of the communication pipe (43) is provided with a second piston (44), and the inner cavity of the outer box body (41) is provided with a driving assembly for moving the second piston (44) in the inner cavity of the communication pipe (43); A high-pressure water drainage mechanism (30) comprising a main pipe body (31) connected with the upper end of the vacuum heat collecting tube (13), an air inlet pipe (32) and a water jet head (33) connected with the tail end and the middle part of the main pipe body (31) respectively, a one-way valve (320) installed in the inner cavity of the air inlet pipe (32), a first piston (35) provided in the inner cavity of the main pipe body (31), and a piston inner hole (351) provided in the inner cavity of the first piston (35); The high-pressure water drainage mechanism (30) further comprises a magnetic ring (37) fixedly connected in the inner cavity of the main pipe body (31) and a magnetic plate (38) movably arranged in the inner cavity of the main pipe body (31), and a spring (39) fixedly connected between the magnetic plate (38) and the inner wall of the top of the main pipe body (31); The end of the first piston (35) away from the vacuum heat collecting tube (13) is fixedly connected with a support column (36) penetrating through the magnetic ring (37) and abutting against the magnetic plate (38); After the water inlet pipe valve (151) is closed, the pressurizing mechanism (40) further pressurizes the water in the inner cavity of the vacuum heat collecting tube (13), the piston inner hole (351) and the water jet head (33) are communicated under the action of pressure, and the water in the inner cavity of the vacuum heat collecting tube (13) is drained at high pressure, and the external air enters the inner cavity of the vacuum heat collecting tube (13) through the one-way valve (320) to supplement the water drained at high pressure.

2. The pressurized vacuum tube all-in-one machine according to claim 1, characterized in that, The head end of the water jet head (33) is obliquely arranged and faces the upper surface of the vacuum heat collecting tube (13).

3. The pressurized vacuum tube all-in-one machine according to claim 1, characterized in that, The support (10) and the base (12) are jointly provided with a reflecting plate (20) below the vacuum heat collecting tube (13).

4. The pressurized vacuum tube all-in-one machine according to claim 3, characterized in that, The outer periphery of the water delivery pipe (16) is covered with a sponge sleeve (161), and the outer periphery of the sponge sleeve (161) is provided with a frame sleeve (21) fixedly connected to the upper surface of the reflecting plate (20).

5. The pressurized vacuum tube all-in-one machine according to claim 1, characterized in that, The head end of the main pipe body (31) is provided with a first flat pressing hole (34).

6. The pressurized vacuum tube all-in-one machine according to claim 1, characterized in that, The driving assembly comprises a micro motor (46) fixedly installed on the inner wall of the outer box body (41), an reciprocating screw rod (47) fixedly connected with the output shaft of the micro motor (46), a screw rod sleeve (48) peripherally installed on the reciprocating screw rod (47), and a connecting strip (45) fixedly connected between one side of the screw rod sleeve (48) and the inner wall of the outer box body (41) and the other side and the second piston (44).

7. The pressurized vacuum tube integration machine according to claim 6, characterized in that, A second flat pressing hole (42) is formed on the outer box body (41); a connecting hole is formed on the outer wall of the communicating pipe (43), and the connecting strip (45) movably penetrates the connecting hole.

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