Unpowered mechanical anti-freezing large flat plate heat collection equipment

Abstract

The utility model discloses unpowered mechanical anti-freezing large flat plate heat collection equipment, which relates to the technical field of heat collection equipment and comprises a heat header, the left side and the right side of the heat header are respectively and fixedly connected with a fixing plate, and the lower sides of the fixing plates are fixedly connected with a heat collection box. Two red copper main flow channels and fourteen red copper branch flow channels are fixedly connected into the heat collecting box, the red copper branch flow channels are all connected with the red copper main flow channels through pipelines, and the upper sides of the red copper branch flow channels and the upper side of the red copper main flow channels are all fixedly connected with silica gel connecting sleeves. A first connecting port and a second connecting port are further formed in the upper side of the silica gel connecting sleeve, the first connecting port is fixedly connected with a liquid passing pipe, and the liquid passing pipe penetrates through the hot header. Fatigue cracking of the red copper main flow channel and the red copper branch flow channel due to too many times of expansion or too large internal pressure is effectively avoided, and the effects of good anti-freezing performance and cracking resistance are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat collection equipment, in particular to a non-powered mechanical anti-freezing large flat plate heat collection equipment. Background Technique

[0002] The flat plate heat collection equipment adopts all-copper materials, and the heat absorption coating adopts blue coating and black chromium technology. Each square meter of the heat collection plate can replace 150 kg of coal, equivalent to 147 degrees of electricity. The amount of hot water per square meter is about 80 kg at 50 °C or above. It adopts double circulation, is not easy to scale, can discharge sewage, will not burst the pipe, is not afraid of hail, the outer cover adopts a toughened glass protective layer, can bear pressure, belongs to the welding between metal pipes, and has a service life of more than 30 years.

[0003] For the existing flat plate heat collection equipment, after the ambient temperature drops below zero, the water in the pipeline stops flowing and begins to become a mixture of ice, water and air. The volume of this mixture will be about 11% larger than the volume of water, which will cause the space inside the pipeline to expand to a certain extent, resulting in the pipeline cracking and damaging the flat plate heat collection equipment. Therefore, it is very necessary to design a flat plate heat collection equipment with good anti-freezing performance and high safety. Content of the Utility Model

[0004] The purpose of the utility model is to provide a non-powered mechanical anti-freezing large flat plate heat collection equipment to solve the problems put forward in the above background technique.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A non-powered mechanical anti-freezing large flat plate heat collection equipment, including a heat connection box, fixed connections are respectively arranged on the left and right sides of the heat connection box with fixing plates, a heat collection box is fixedly connected to the lower side of the fixing plates, two purple copper main channels and fourteen purple copper branch channels are fixedly connected inside the heat collection box, the purple copper branch channels are all connected to the purple copper main channels through pipelines, silicone connection sleeves are fixedly connected to the upper sides of the purple copper branch channels and the purple copper main channels, a first connection port and a second connection port are further opened on the upper side of the silicone connection sleeve, a liquid passing pipe is fixedly connected to the first connection port and the liquid passing pipe penetrates through the heat connection box, a dust filtering cover is hinged to the second connection port, a dust filtering net is arranged inside the dust filtering cover, anti-freezing cores are arranged inside the purple copper branch channels and the purple copper main channels, one end of the anti-freezing core is fixedly connected to the dust filtering net and communicates with the atmosphere, the other end of the anti-freezing core is in a closed state, a water storage cavity is arranged between the purple copper branch channels, the purple copper main channels and the anti-freezing cores, and an air storage cavity is arranged inside the anti-freezing core.

[0006] The height of the liquid passing pipe on the upper side of the purple copper main channel is flush with the lower wall inside the heat connection box, and the height of the liquid passing pipe on the upper side of the purple copper branch channel exceeds the lower wall inside the heat connection box.

[0007] An air vent is provided above the front side of the heat connection box. A liquid inlet pipe is fixedly connected to the left side of the heat connection box, and a liquid outlet pipe is fixedly connected to the right side of the heat connection box.

[0008] The antifreeze core is made of silica gel, and cross-shaped reinforcing ribs are provided inside the antifreeze core.

[0009] Heat insulation materials are provided on the inner walls of the heat connection box. A temperature sensor is fixedly connected inside the heat connection box. Pressure sensors are fixedly connected to the outside of each copper purple branch channel and copper purple main channel. The receiving end of each pressure sensor penetrates through the dust filter cover and extends into the antifreeze core.

[0010] A control box is fixedly connected to the upper side of the heat connection box. A blower is fixedly connected to the front side of the heat connection box. Sixteen air outlets are provided below the blower. An electromagnetic valve is fixedly connected to the lower side of each air outlet. An air outlet pipe is fixedly connected to the lower side of the electromagnetic valve, and the output end of the air outlet pipe is aligned with the dust filter screen.

[0011] A control module, an alarm module, and a detection module are provided inside the control box, and the control module, the alarm module, and the detection module are connected by signal to each other.

[0012] The control module is connected by signal to the blower and the electromagnetic valve, and the detection module is connected by signal to the pressure sensor and the temperature sensor.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: By providing an antifreeze core, one end of which communicates with the atmosphere freely, effectively avoiding fatigue cracking of the copper purple main channel and copper purple branch channels due to excessive expansion times or excessive internal pressure, achieving good antifreeze performance and anti-cracking effect;

[0014] By providing a pressure sensor and a temperature sensor, the pressure value inside the antifreeze core is detected at different temperatures to determine whether the antifreeze core is squeezed or restored to its original state, and then to determine whether the antifreeze core is damaged, so as to quickly remind the personnel to replace the damaged antifreeze core in time, achieving the effect of timely replacement of the antifreeze core. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0016] Figure 1 is a half-sectional schematic diagram of the present utility model;

[0017] Figure 2 is the present utility model Figure 1 is an enlarged schematic diagram of area A;

[0018] Figure 3 is an enlarged schematic view of area B of the present utility model Figure 1 ;

[0019] Figure 4 is a schematic view of the overall structure of the present utility model;

[0020] Figure 5 is Figure 4 an enlarged schematic view of area C of the present utility model;

[0021] In the figure: 1. control box; 2. blower; 3. solenoid valve; 4. air outlet pipe; 5. heat connection box; 6. ventilation port; 7. liquid outlet pipe; 8. fixing plate; 9. liquid inlet pipe; 10. heat collection box; 11. copper main flow channel; 12. copper branch flow channel; 13. liquid through pipe; 14. silica gel connection sleeve; 15. dust filter cover; 16. pressure sensor; 17. antifreeze core. Specific embodiments

[0022] The technical solution of the present utility model will be further described in detail and non - restrictively below in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work fall within the scope of protection of the present utility model.

[0023] Please refer to Figures 1-5 , the present utility model provides a technical solution: a non - powered mechanical antifreeze large - flat - plate heat collection device, including a heat connection box 5. Fixing plates 8 are respectively fixedly connected to the left and right sides of the heat connection box 5. A heat collection box 10 is fixedly connected to the lower side of the fixing plate 8. Two copper main flow channels 11 and fourteen copper branch flow channels 12 are fixedly connected inside the heat collection box 10. The copper branch flow channels 12 are all connected to the copper main flow channel 11 through pipes. Silica gel connection sleeves 14 are fixedly connected to the upper sides of the copper branch flow channels 12 and the copper main flow channel 11. A first connection port and a second connection port are also provided on the upper side of the silica gel connection sleeve 14. A liquid through pipe 13 is fixedly connected to the first connection port and the liquid through pipe 13 penetrates through the heat connection box 5. A dust filter cover 15 is hinged to the second connection port. A dust filter screen is provided inside the dust filter cover 15. Antifreeze cores 17 are provided inside the copper branch flow channels 12 and the copper main flow channel 11. One end of the antifreeze core 17 is fixedly connected to the dust filter screen and communicates with the atmosphere. The other end of the antifreeze core 17 is in a closed state. A water storage cavity is provided between the copper branch flow channels 12, the copper main flow channel 11 and the antifreeze core 17. An air storage cavity is provided inside the antifreeze core 17.

[0024] The height of the liquid through pipe 13 on the upper side of the copper main flow channel 11 is flush with the lower wall inside the heat connection box 5, and the height of the liquid through pipe 13 on the upper side of the copper branch flow channel 12 exceeds the lower wall inside the heat connection box 5.

[0025] An air vent 6 is provided above the front side of the heat manifold 5. A liquid inlet pipe 9 is fixedly connected to the left side of the heat manifold 5, and a liquid outlet pipe 7 is fixedly connected to the right side of the heat manifold 5.

[0026] The anti-freezing core 17 is made of silica gel, and there is a cross-shaped reinforcing rib inside the anti-freezing core 17.

[0027] Specifically, the heat manifold 5 is used to store water source. The purple copper main flow channel 11 and the purple copper branch flow channels 12 are used to guide the water source to flow, so as to complete the circulating heating of the water source inside the device. The silica gel anti-freezing core 17 has one end open to communicate with the atmosphere, which can retract and extend more freely. The anti-freezing core 17 is designed to be able to be pulled out or inserted from the tee opening, making it easier to replace in the future, avoiding the problem that the entire module cannot be used for anti-freezing due to the aging of the anti-freezing core 17 over time and being unable to be replaced. The cross-shaped reinforcing rib improves the supporting force of the hollow part of the silica gel anti-freezing core 17, avoiding that the anti-freezing core 17 maintains sufficient compression space before freezing. By opening the dust filter cover 15, the anti-freezing core 17 can be taken out for timely replacement. The dust filter net is used to prevent dust from entering the inside of the anti-freezing core 17.

[0028] The inner walls of the heat manifold 5 are all provided with heat insulation materials. A temperature sensor is fixedly connected inside the heat manifold 5. A pressure sensor 16 is fixedly connected to the outside of each purple copper branch flow channel 12 and purple copper main flow channel 11. The receiving end of each pressure sensor 16 penetrates through the dust filter cover 15 and extends into the anti-freezing core.

[0029] Specifically, the heat insulation material will insulate and keep warm the water source inside the heat manifold 5.

[0030] A control box 1 is fixedly connected to the upper side of the heat manifold 5. A blower 2 is fixedly connected to the front side of the heat manifold 5. There are sixteen air outlets below the blower 2. A solenoid valve 3 is fixedly connected to the lower side of each air outlet. An air outlet pipe 4 is fixedly connected to the lower side of the solenoid valve 3, and the output end of the air outlet pipe 4 is aligned with the dust filter net.

[0031] Specifically, the blower 2 is used to generate air flow by the rotation of the impeller, so as to realize the compression and transportation of gas, and transmit the gas to the sixteen air outlets. When one of the solenoid valves 3 is opened, the gas will be ejected from the air outlet pipe 4 connected to this solenoid valve 3.

[0032] A control module, an alarm module and a detection module are provided inside the control box 1, and the control module, the alarm module and the detection module are connected with each other by signal.

[0033] The control module is signal-connected to the blower 2 and the solenoid valve 3, and the detection module is signal-connected to the pressure sensor 16 and the temperature sensor.

[0034] Specifically, the pressure sensor 16 is used to detect the pressure value inside the antifreeze core 17, and convert the pressure value into an electrical signal and send it to the control box 1. The temperature sensor is used to detect the temperature value of the water source inside the heat connection box 5, and convert the temperature value into an electrical signal and send it to the control box 1.

[0035] It includes the following steps:

[0036] S1: Personnel add the water source into the heat connection box 5 from the liquid inlet pipe 9.

[0037] S2: When the air temperature is higher than 0 degrees, the liquid is heated through the solar radiation on the main copper channel 11 and the branch copper channels 12. When the air temperature is lower than 0 degrees, the antifreeze core 17 is compressed and shrunk, thereby discharging the internal air to protect the pipeline.

[0038] Specifically, in a normal temperature environment, the cold water inside the heat connection box 5 flows into the main copper channel 11 due to the action of gravity, and then flows into the interior of each branch copper channel 12 in turn. After heat transfer through solar radiation, the water temperature rises rapidly. Due to the density difference between cold and hot water, a thermosiphon phenomenon is formed, and the water will float upward and flow into the heat connection box 5 from the upper end of the branch copper channel 12. At this time, the water inside the connection box also forms a situation where cold water is at the lower part due to the density difference between cold and hot water. Again, due to the action of gravity, it enters the main copper channel 11. Repeating this cycle can continuously increase the water temperature. When the ambient temperature drops below zero, the water in the heat connection box 5 stops flowing and starts to freeze. At this time, pressure will be generated inside the closed main copper channel 11 and the branch copper channels 12. This pressure will squeeze in all directions. Since the main copper channel 11 and the branch copper channels 12 are made of metal and can withstand a pressure below 2.0 MPA, at this time, the pressure will be guided by the inner walls of the main copper channel 11 and the branch copper channels 12 and squeezed towards the antifreeze core 17. After being subjected to the pressure, the antifreeze core 17 will shrink and squeeze out the internal air into the external atmosphere. The designed evacuation force and shrinkage amount are just enough to absorb the expanded part of this mixture. When the ambient temperature exceeds 0 degrees, the ice melts as the temperature rises, and the volume slowly shrinks. The pressure in the main copper channel 11 and the branch copper channels 12 disappears. The antifreeze core 17 slowly automatically returns to its original shape due to the tension of the structure, and the water flow starts to flow, and the water in the flow channel returns to normal flow, thus ensuring that the metal flow channel will not be damaged due to the expansion force. Since the heat connection box 5 is provided with a vent hole 6 communicating with the atmosphere, the vent hole 6 has the function of ventilation and is set at the position of two-thirds of the height of the heat connection box 5. This will cause the water level inside the heat connection box 5 not to be full, leaving a space for the expansion of the frozen water, thus ensuring that the heat connection box 5 will not burst when the water freezes. By setting the antifreeze core 17, one end of which communicates with the atmosphere and can be freely expanded and contracted, it effectively avoids the fatigue cracking of the main copper channel 11 and the branch copper channels 12 due to excessive expansion times or excessive internal pressure, achieving good antifreeze performance and anti-cracking effect.

[0039] S3: Determine whether the anti-freezing core is damaged through the pressure sensor 16 and the temperature sensor, and give an alarm in time to remind the personnel to replace it after damage.

[0040] Specifically, after the water source inside the copper main flow channel 11 and the copper branch flow channel 12 is completely frozen, the anti-freezing core 17 is extruded. After being pressured, the anti-freezing core 17 will shrink and extrude the internal air into the external atmosphere. At this time, the internal pressure sensor 16 is extruded by the anti-freezing core 17, so as to detect the pressure value. Let the pressure value detected by the pressure sensor 16 be q. When q > 0, it indicates that the temperature is less than 0 degrees at this time, and the water source inside the copper main flow channel 11 and the copper branch flow channel 12 has been completely frozen. The anti-freezing core 17 is deformed by the ice at this time. When q = 0, it indicates that the temperature is greater than 0 degrees at this time, and the water source inside the copper main flow channel 11 and the copper branch flow channel 12 changes from ice to liquid. The anti-freezing core 17 is no longer extruded and returns to its original state. While the pressure sensor 16 detects the pressure, the temperature sensor is also detecting the water temperature inside the heat connection box 5. When the temperature sensor detects that the temperature inside the heat connection box 5 is greater than 0 degrees and the pressure sensor 16 detects that q > 0, the control box 1 determines that the anti-freezing core 17 is damaged and cannot return to its original state. The control box 1 controls the blower 2 to turn on and the solenoid valve 3 to turn on. The air outlet pipe 4 blows air into the anti-freezing core 17 to assist it in returning to its original state. When the temperature sensor still detects that the temperature inside the heat connection box 5 is greater than 0 degrees and the pressure sensor 16 detects that q > 0, the alarm module starts and makes a sound to remind the personnel to replace the anti-freezing core 17 in time. On the contrary, after blowing air, when the temperature sensor detects that the temperature inside the heat connection box 5 is greater than 0 degrees and the pressure sensor 16 detects that q = 0, the alarm module is turned off and the anti-freezing core 17 does not need to be replaced. When the temperature sensor detects that the temperature inside the heat connection box 5 is less than 0 degrees and the pressure sensor 16 detects that q = 0, it indicates that the pressure sensor 16 or the anti-freezing core 17 is damaged at this time. The alarm module starts and makes a sound to remind the personnel to come and check. By providing the pressure sensor 16 and the temperature sensor, the pressure value inside the anti-freezing core 17 is detected at different temperatures to judge whether the anti-freezing core 17 is extruded or restored to its original state, and then to judge whether the anti-freezing core 17 is damaged, so as to quickly remind the personnel to replace the damaged anti-freezing core 17 in time, achieving the effect of timely replacement of the anti-freezing core 17.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0042] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-powered mechanical antifreeze type large flat plate heat collecting device, characterized in that: The invention comprises a heat header (5), wherein the left and right sides of the heat header (5) are respectively fixedly connected with a fixing plate (8), the lower side of the fixing plate (8) is fixedly connected with a heat collecting box (10), the interior of the heat collecting box (10) is fixedly connected with two copper main channels (11) and fourteen copper branch channels (12), the copper branch channels (12) are all connected to the copper main channel (11) pipeline, the upper sides of the copper branch channels (12) and the copper main channel (11) are both fixedly connected with a silicone connecting sleeve (14), the upper side of the silicone connecting sleeve (14) is also provided with a first connecting port and a second connecting port, the first connecting port is fixedly connected with a through hole, and the second connecting port is fixedly connected with the first connecting port. A liquid pipe (13) and the liquid pipe (13) passes through the hot header (5); the second connection port is hinged with a dust filter cover (15); a dust filter net is provided inside the dust filter cover (15); an antifreeze core (17) is provided inside the copper branch channel (12) and the copper main channel (11); one end of the antifreeze core (17) is fixedly connected to the dust filter net and communicates with the atmosphere; the other end of the antifreeze core (17) is in a closed state; a water storage cavity is provided between the copper branch channel (12), the copper main channel (11) and the antifreeze core (17); an air storage cavity is provided inside the antifreeze core (17); and a cross reinforcing rib is provided inside the antifreeze core (17); A vent (6) is provided on the upper front side of the thermal header (5); a liquid inlet pipe (9) is fixedly connected to the left side of the thermal header (5); and a liquid outlet pipe (7) is fixedly connected to the right side of the thermal header (5); A temperature sensor is fixedly connected to the interior of the thermal junction box (5), and a pressure sensor (16) is fixedly connected to the outside of each of the copper branch channels (12) and the copper main channel (11), and a receiving end of each of the pressure sensors (16) passes through the dust filter cover (15) and extends into the interior of the antifreeze core.

2. The non-powered mechanical antifreeze large flat plate heat collecting device according to claim 1, characterized in that: The height of the liquid passage (13) on the upper side of the copper main channel (11) is flush with the lower wall inside the heat header (5), and the height of the liquid passage (13) on the upper side of the copper branch channel (12) exceeds the lower wall inside the heat header (5).

3. The non-powered mechanical antifreeze large flat plate heat collecting device according to claim 2, characterized in that: The antifreeze core (17) is made of silica gel.

4. The non-powered mechanical antifreeze large flat plate heat collecting device according to claim 3, characterized in that: The upper side of the heat header (5) is fixedly connected to a control box (1), the front side of the heat header (5) is fixedly connected to a blower (2), the lower side of the blower (2) is provided with sixteen air outlets, the lower side of each air outlet is fixedly connected to a solenoid valve (3), the lower side of the solenoid valve (3) is fixedly connected to an air outlet pipe (4), and the output end of the air outlet pipe (4) is aligned with the dust filter.

5. The non-powered mechanical antifreeze large flat plate heat collecting device according to claim 4, characterized in that: The control box (1) is provided with a control module, an alarm module and a detection module inside. The control module, the alarm module and the detection module are connected to each other by signals. The control module is connected to the blower (2) and the solenoid valve (3) by signals. The detection module is connected to the pressure sensor (16) and the temperature sensor by signals.

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