Solar heat collector for fresh air system and fresh air system
By using solar collectors to track sunlight and heat the working fluid, the problem of poor heating performance of fresh air systems in winter has been solved, achieving continuous heating with low energy consumption.
Patent Information
- Application Number
- CN202423323051.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing fresh air systems are not effective at heating in winter, especially at night and when weather conditions are poor, resulting in low heating efficiency and high energy consumption.
The system uses solar collectors, which adjust the reflection angle of the collector troughs to track sunlight. The collector tubes absorb heat energy to heat the working fluid, which then heats water through a heat exchanger and is stored in a hot water storage tank, providing continuous heat for the fresh air unit.
It enables the continuous supply of heat with low energy consumption, avoids poor heating effect at night, and solves the problem of low heating efficiency caused by poor weather conditions in the short term.
Smart Images
Figure CN223807387U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fresh air system technical field especially for fresh air system's solar energy heat collector and fresh air system. BACKGROUND
[0002] Fresh air system is by the air supply system and exhaust system a set of independent air handling system, it is divided into duct type fresh air system and no duct fresh air system two kinds.
[0003] The existing fresh air system needs to provide hot water in winter, which is used to heat fresh air. The hot water is usually provided by the energy room / boiler room, which needs to be connected to the roof through the vertical pipe, occupying the pipe well space and requiring more hot water supply, which is high in energy consumption. The recovered return air heat is difficult to reach the temperature standard that can be sent into the room, resulting in poor heating effect at night and low heating efficiency under poor weather conditions. UTILITY MODEL CONTENT
[0004] The utility model aims at overcoming the deficiency of the existing fresh air system, which has poor heating effect at night and low heating efficiency under poor weather conditions, and provides a solar heat collector for fresh air system and a fresh air system.
[0005] The technical scheme of the utility model provides a solar heat collector for fresh air system, which comprises a fixing seat, a heat collection groove, a heat collection pipe, a heat collection pipe mounting rack, and a height-adjustable heat collection groove mounting rack.
[0006] In one of the optional technical schemes, the heat collection groove mounting rack comprises at least four telescopic support racks, and the at least four telescopic support racks are respectively arranged at the vertices of the heat collection groove and are perpendicular to the fixing seat.
[0007] In one of the optional technical schemes, a controller is further included, an inclination sensor and a light-heat sensor are arranged on the reflecting surface, and the controller is in communication connection with the inclination sensor and the light-heat sensor respectively.
[0008] In one of the optional technical schemes, a limit switch is arranged on the telescopic support rack, and the limit switch is in communication connection with the controller.
[0009] In one of the alternative technical solutions, the heat collection tube mounting frame includes at least two heat collection tube support frames, and the two ends of the heat collection tube are respectively connected to the heat collection tube support frames.
[0010] In one of the alternative technical solutions, the heat collection tube is parallel to the center line of the reflective surface via the heat collection tube support frame.
[0011] The present invention also provides a fresh air system, including a solar collector, a heat exchanger, and a hot water storage tank connected to the fresh air unit, as described above. The solar collector is connected to one end of the heat exchanger via a supply pipe and a return pipe. The other end of the heat exchanger is connected to the hot water storage tank via a supply pipe and a return pipe. A main working fluid drive assembly is provided on the return pipe, and a main water drive assembly is provided on the return pipe.
[0012] In one of the alternative technical solutions, both the main working fluid drive assembly and the main water drive assembly include a check valve, a first pressure gauge, a first ball hose, a pump, a second ball hose, a second pressure gauge, a filter, and a thermometer connected in sequence.
[0013] In one of the alternative technical solutions, the return working fluid pipe is further provided with a backup working fluid drive component, and the return water pipe is further provided with a backup water drive component.
[0014] The above technical solution has the following beneficial effects: the heat collection trough is set on the fixed base by the heat collection trough mounting bracket, and the heat collection tube is set above the reflective surface by the heat collection tube mounting bracket. The reflection angle of the reflective surface of the heat collection trough is adjusted by adjusting the height of the heat collection trough mounting bracket, so that the reflection angle of the heat collection trough always tracks the direction of sunlight. Solar energy can continuously provide heat to heat the working medium, so as to continuously provide heat to the fresh air unit. The energy consumption is low, the phenomenon of poor heating effect at night is avoided, and the problem of low heating efficiency caused by poor weather conditions can be solved in a short period of time. Attached Figure Description
[0015] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:
[0016] Figure 1 A schematic diagram of the structure of a solar collector for a fresh air system provided in one embodiment of this utility model;
[0017] Figure 2 for Figure 1 Side view;
[0018] Figure 3aThis is a schematic diagram of one structure of a fresh air system provided in an embodiment of the present invention;
[0019] Figure 3b This is another structural schematic diagram of a fresh air system provided by this utility model. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0021] It is readily understood that, based on the technical solution of this utility model, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0022] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.
[0023] like Figure 1 and Figure 2 As shown, an embodiment of this utility model provides a solar collector 10 for a fresh air system, including a fixed base 11, a collector trough 12, a collector tube 13, a collector tube mounting bracket 14, and a height-adjustable collector trough mounting bracket 15. The bottom of the collector trough 12 is mounted on the fixed base 11 via the collector trough mounting bracket 15. The collector trough 12 has a reflective surface 121. The reflective angle of the reflective surface 121 is adjusted by adjusting the height of the collector trough mounting bracket 15. The collector tube 13 is mounted above the reflective surface 121 via the collector tube mounting bracket 14.
[0024] The solar collector for fresh air systems provided by this utility model is used to heat working fluids, such as oil, to provide a heat source for the fresh air system. The solar collector for fresh air systems of this utility model is a trough-type solar collector.
[0025] The solar collector 10 for a fresh air system provided in this embodiment includes a mounting base 11, a collector trough 12, a collector tube 13, a collector tube mounting bracket 14, and a collector trough mounting bracket 15.
[0026] The fixed seat 11 is used for fixing the heat collecting groove 12, the heat collecting groove 12 is arranged on the fixed seat 11 through the heat collecting groove mounting frame 15, the heat collecting groove 12 has a reflecting surface 121, the reflecting angle of the reflecting surface 121 can be adjusted by adjusting the height of the heat collecting groove mounting frame 15, so that the heat collecting groove 12 can always focus the parallel incident sunlight on a straight line through the reflecting surface 121, so that the sunlight can be more effectively absorbed by the heat collecting pipe 13 and converted into heat energy, and the light energy density is improved. The heat collecting pipe 13 is arranged above the reflecting surface 121 through the heat collecting pipe mounting frame 14, the heat collecting pipe 13 converts the sunlight into heat energy through the high-absorption coating on the surface, heats the heat transfer medium (such as water or heat-conducting oil) in the pipe, and the heat transfer medium in the heat collecting pipe 13 can be transported to the heat exchanger after being heated, heat exchange is carried out through the heat exchanger, so that the water in the water supply pipe is heated, and the water in the heat storage tank is heated, and heat is provided for the fresh air unit, so that the fresh air unit is continuously provided with heat, and the phenomenon of poor heating effect at night is avoided, and the problem of low heating efficiency caused by poor weather conditions can be solved in a short period of time.
[0027] The solar heat collector for the fresh air system provided by the utility model, through the heat collecting groove mounting frame, the heat collecting groove is arranged on the fixed seat, and through the heat collecting pipe mounting frame, the heat collecting pipe is arranged above the reflecting surface, the reflecting angle of the reflecting surface of the heat collecting groove is adjusted by adjusting the height of the heat collecting groove mounting frame, so that the reflecting angle of the heat collecting groove always tracks the sunlight direction, heat can be continuously provided through the solar energy, the working medium is heated, the fresh air unit is continuously provided with heat, the phenomenon of poor heating effect at night is avoided, and the problem of low heating efficiency caused by poor weather conditions can be solved in a short period of time.
[0028] In one of the embodiments, the heat collecting groove mounting frame 15 comprises at least four telescopic supporting frames 151, the at least four telescopic supporting frames 151 are arranged at the vertexes of the heat collecting groove 12 respectively and are perpendicular to the fixed seat 11.
[0029] The heat collecting groove mounting frame 15 comprises at least four telescopic supporting frames 151, the height of the at least four telescopic supporting frames 151 is adjusted to adjust the reflecting angle of the reflecting surface 121, so that the reflecting surface 121 can always track the sunlight direction, the convenience of adjusting the reflecting angle is improved, and the stability is further improved.
[0030] In one of the embodiments, a controller is further included, an inclination sensor 122 and a light-heat sensor 123 are arranged on the reflecting surface 121, and the controller is in communication connection with the inclination sensor 122 and the light-heat sensor 123 respectively.
[0031] The tilt sensor 122 is used to detect the tilt angle of the heat collecting groove 12, and the light and heat sensor 123 is used to detect the light intensity; the controller adjusts the height of the heat collecting groove mounting frame 15 according to the tilt angle detected by the tilt sensor 122 and the light intensity detected by the light and heat sensor 123, so as to adjust the reflection angle of the reflecting surface 121, and make the reflection angle of the reflecting surface 121 always track the light direction, further improve the heat energy, and provide heat for the fresh air handling unit.
[0032] In one of the embodiments, the telescopic support frame 151 is provided with a limit switch 152, and the limit switch 152 is in communication connection with the controller.
[0033] The controller converts the tilt angle detected by the tilt sensor 122 and the light intensity detected by the light and heat sensor 123 into a position electric signal, and sends the position electric signal to the limit switch 152, so as to adjust the height of the telescopic support frame 151 through the limit switch 152, and realize more convenient adjustment of the height of the telescopic support frame 151.
[0034] In one of the embodiments, in order to facilitate the installation of the heat collecting pipe and improve the stability, the heat collecting pipe mounting frame 14 comprises at least two heat collecting pipe support frames 141, and the two ends of the heat collecting pipe 13 are connected with the heat collecting pipe support frames 141 respectively.
[0035] In one of the embodiments, in order to improve the heat collecting efficiency, the heat collecting pipe 13 is parallel to the center line of the reflecting surface 121 through the heat collecting pipe support frame 141.
[0036] As shown in Figure 3a and Figure 3b , the utility model provides a kind of fresh air system, including the solar heat collector 10 for fresh air system as described above, heat exchanger 20, and with fresh air handling unit 40 intercommunication heat storage water tank 30, for the solar heat collector 10 of fresh air system is communicated with the one end of heat exchanger 20 by supply working medium pipe 50 and back working medium pipe 60, and the other end of heat exchanger 20 is communicated with heat storage water tank 30 by water supply pipe 70 and back water pipe 80, back working medium pipe 60 is equipped with main working medium drive assembly, and back water pipe 80 is equipped with main water drive assembly.
[0037] The fresh air system provided by the utility model includes solar heat collector 10 for fresh air system, heat exchanger 20, heat storage water tank 30 and fresh air handling unit 40 in turn intercommunication, as shown in Figure 3a and Figure 3bAs shown, the heat exchanger 20 is communicated through ① and ②. The solar heat collector 10 for the fresh air system collects solar energy to heat the working medium, and the working medium pump drives the working medium circulation. The heated working medium exchanges heat with the right water system in the heat exchanger 20, and the water system stores the heated hot water in the heat storage water tank 30. When the temperature in the heat storage water tank 30 reaches the preset temperature, the hot water in the heat storage water tank 30 heats the fresh air unit 40, realizing continuous heating of the fresh air unit, avoiding the phenomenon of poor heating effect at night, and solving the problem of low heating efficiency caused by poor weather conditions in a short period of time.
[0038] The heat exchanger 20 is a shell-and-tube heat exchanger.
[0039] The fresh air system provided by the utility model, the solar heat collector 10 for the fresh air system collects solar energy to heat the working medium, and exchanges heat through the heat exchanger to heat water, and stores the heated hot water in the heat storage water tank to provide a heat source for the fresh air unit, realizing continuous heating of the fresh air unit, avoiding the phenomenon of poor heating effect at night, and solving the problem of low heating efficiency caused by poor weather conditions in a short period of time.
[0040] In one embodiment, the main working medium driving assembly and the main water driving assembly each include a check valve CV, a first pressure gauge Y1, a first spherical hose S1, a pump P, a second spherical hose S2, a second pressure gauge Y2, a filter R and a thermometer K connected in sequence.
[0041] The check valve CV is used to prevent backflow of the working medium and / or water, which damages the pump P. The first spherical hose S1 and the second spherical hose S2 are used to connect the pump P with the first pressure gauge Y1 and the second pressure gauge Y2, respectively. The pump P is used to detect the pipeline pressure of the back working medium pipe 60 and / or the back water pipe 80, and to determine whether the pressure before and after the pump P is normal, so as to ensure that the working medium and water can be recycled, and further reduce the cost.
[0042] The specific structure and working principle of the check valve CV, the first pressure gauge Y1, the first spherical hose S1, the pump P, the second spherical hose S2, the second pressure gauge Y2, the filter R and the thermometer K can adopt the prior art, which will not be described here.
[0043] In one embodiment, the back working medium pipe 60 is further provided with a standby working medium driving assembly, and the back water pipe 80 is further provided with a standby water driving assembly.
[0044] The standby working medium driving assembly is the same as the main working medium driving assembly, and the standby water driving assembly is the same as the main water driving assembly. The standby working medium driving assembly and the standby water driving assembly can prevent the system from failing to operate when the main working medium driving assembly and / or the main water driving assembly fails, and further improve the safety.
[0045] The above merely describes the principles and preferred embodiments of the present application. It should be noted that, for those skilled in the art, on the basis of the principles of the present application, a number of other variants can also be made, and should also be considered as falling within the scope of the present application.
Claims
1. A solar thermal collector for a fresh air system, characterized in that, The device includes a fixed base, a heat collection trough, a heat collection tube, a heat collection tube mounting bracket, and a height-adjustable heat collection trough mounting bracket. The bottom of the heat collection trough is mounted on the fixed base via the heat collection trough mounting bracket. The heat collection trough has a reflective surface. The heat collection trough mounting bracket adjusts the reflection angle of the reflective surface by adjusting its height. The heat collection tube is mounted above the reflective surface via the heat collection tube mounting bracket.
2. The solar thermal collector for a fresh air system of claim 1, wherein, The solar collector mounting bracket includes at least four retractable support brackets, which are respectively located at the apex of the solar collector and perpendicular to the fixed base.
3. The solar thermal collector for a fresh air system of claim 2, wherein, It also includes a controller, and the reflective surface is provided with a tilt sensor and a photothermal sensor, and the controller is communicatively connected to the tilt sensor and the photothermal sensor respectively.
4. The solar thermal collector for a fresh air system of claim 3, wherein, The retractable support frame is equipped with a limit switch, which is communicatively connected to the controller.
5. Solar collector for a fresh air system according to any of claims 1-4, characterized in that, The heat collection tube mounting frame includes at least two heat collection tube support frames, and the two ends of the heat collection tube are respectively connected to the heat collection tube support frames.
6. The solar thermal collector for a fresh air system of claim 5, wherein, The heat collection tube is parallel to the center line of the reflective surface via the heat collection tube support frame.
7. A fresh air system characterized in that, The system includes a solar collector, a heat exchanger, and a hot water storage tank connected to a fresh air unit, as described in any one of claims 1-6. The solar collector for the fresh air system is connected to one end of the heat exchanger via a supply working fluid pipe and a return working fluid pipe. The other end of the heat exchanger is connected to the hot water storage tank via a supply water pipe and a return water pipe. A main working fluid drive assembly is provided on the return working fluid pipe, and a main water drive assembly is provided on the return water pipe.
8. The fresh air system of claim 7, wherein, Both the main working fluid drive assembly and the main water drive assembly include a check valve, a first pressure gauge, a first spherical hose, a pump, a second spherical hose, a second pressure gauge, a filter, and a thermometer connected in sequence.
9. The fresh air system of claim 8, wherein, The return working fluid pipe is also equipped with a backup working fluid drive assembly, and the return water pipe is also equipped with a backup water drive assembly.