• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Low-temperature solar thermal installation for heating hot water, heating and industrial processes, comprising: - a battery of solar collectors (2) that heat a heat transfer fluid of a solar primary circuit (1); - a storage tank (5) for heating water by heat exchange with the heat transfer fluid; - a hydraulic bridge (10) for accumulation of heat transfer fluid, interconnected between the flow (1a) and return (1b) pipes of the solar primary circuit (1); - at least one valve (11; 16, 17, 18) for regulating the flow of the heat transfer fluid in the hydraulic bridge (10) so that in the operating situation the hydraulic bridge (10) accumulates inside the air contained in the circuit primary solar (1) and in a standstill situation, the solar collector battery (2) is emptied of heat-bearing fluid and filled with air from the hydraulic bridge (10), leaving the heat transfer fluid of the solar collector battery (2) stored in the hydraulic bridge (10). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2583702A1
    申请号:ES201531935
    申请日:2015-12-30
    公开日:2016-09-21
    发明作者:Eduardo SANCHEZ APOLO
    申请人:Eduardo SANCHEZ APOLO；
    IPC主号:
    专利说明:

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    thermosiphon circulation system according to the state of the art, where the heat-transfer fluid heated in the solar collector battery 2 rises, naturally by thermosiphon effect, through the outflow pipe of a solar primary circuit 1, it cools in the inter-accumulator tank 5 (ACS tank exchanger) when transferring heat to the water, and returns already cooled to the solar collector battery 2 through the return line of the solar primary circuit 1.
    Figure 7 shows a solar thermal system with thermosiphon circulation according to another possible alternative embodiment of the present invention, in which a hydraulic bridge 10 has been installed, interconnected between the first and return pipes 1b of the solar primary circuit 1 through an inlet 12 and an outlet 13. The system incorporates a thermal shut-off valve 16, a low-pressure drop valve 17 and a low-pressure check valve 18, located as shown in Figure 7 .
    In this embodiment of Figure 7, four different possible operating states are also raised, in which the hydraulic bridge 10 and the valves will perform different functions. The operating states are as follows:
    -Stationary operation
    -Stop in transitory regime
    -Stationary in stationary regime
    -Function in transitory regime
    Figure 8 represents the steady-state operation of the installation of Figure 7. In this state, the installation (DHW tank or other demand) is demanding energy, so the solar collector battery 2 is able to send heat which will be evacuated in the storage tank 5, operating within the margins established by the manufacturer. In this operating state the storage tank 5 is cold enough to lower the temperature of the heat transfer fluid below the design temperature of the thermal valve 16, set at about 65 ° C in a preferred embodiment. Below that return temperature the thermal valve 16 remains open allowing the circulation of the heat transfer fluid of the solar primary circuit 1. The thermal valve 16 can have the expansion bulb therein, so that it will be adjusted to the desired return temperature for avoid overheating, or you can have the expansion bulb inside the storage tank 5, closing the valve when the drinking water is at the desired temperature.
    13
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    throttle valve 11 balances the flow rate between different collector batteries with different head losses.
    The different states of the valve depending on the specific operating status of the installation are as follows:
    -If the installation is in steady state operation, the opening of the throttle valve 11 is adjusted according to the flow requirements of the installation.
    -If the installation is stopped in transitory mode, the opening of the throttle valve 11 will preferably be 100% maximum, allowing the passage of air to the solar collector battery 2 and fluid to the hydraulic bridge 10, thanks to a spring .
    -If the installation is stationary, the opening of the throttle valve 11 will preferably be 100%.
    -If the installation is in transitory operation, the regulating valve 11 will remain closed as long as it does not lower its inlet pressure below a certain design pressure (e.g. 500 mm.c.a.). This is what is intended for all the flow to flow to the solar collector battery 2 and not divert anything until the solar collector battery 2 is full. Once full, the pressure difference in the throttle valve 11 will be caused by the loss of charge in the manifold battery. On average, a load loss of 20-40 mm.c.a. by solar collector, according to the design flow. The battery of solar collectors 2 is usually less than ten solar collectors in parallel. During the charging process the pressure difference supported by the regulating valve 11 is due to the difference in height between the entry in the solar collector battery 2 and its output, around 0.5 m. Once the solar collectors are charged, the pressure difference is due to the loss of charge in the collector battery.
    In one possible embodiment, the throttle valve 11 is composed of a conical plunger 35, operated by spring 36 as shown in Figure 13A, which represents a closed throttle valve 11 at the top and a throttle valve 11 open at the bottom. The flow rate through said regulating valve 11 depends on the opening of the
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    权利要求:
    Claims (1)
    [1]
    image 1
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    1 Hot water
    image4 Fig. 1
    7
    3
    Cold water
    4
    image5
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    Hc
    Hd Ha
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    Hot water
    Fig. 2
    Cold water
    image8
    Hc Hd Ha
    1 B
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    Hot water
    Fig. 3
    Cold water
    image10
    Hc Hd Ha
    1 B
    image11
    Hot water
    Cold water
    Fig. 4

    C
    L
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    Ia
    image13 image14 R
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    image16 I
    V
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    Fig. 5
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    Hot water Cold water
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    Fig. 6
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    Fig. 7
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    12
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    12
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    Fig. 9
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    同族专利:
    公开号 | 公开日
    ES2583702B1|2017-06-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SU696246A1|1978-04-06|1979-11-05|Зональный Научно-Исследовательский И Проектный Институт Типового И Экспериментального Проектирования Жилых И Общественных Зданий "Ташзнииэп"|Helium heating system|
    FR2478803A1|1980-03-24|1981-09-25|Technologie Innovations Indles|Frost protection for solar heat collector - has thermostat to stop circulating-pump during freezing and overflow tank for water expansion|
    FR2518247A1|1981-12-16|1983-06-17|Huin Guy|Frost protection circuit for solar collector - uses charge of immiscible oil to flood exposed heat exchangers|
    EP0653596A2|1993-11-11|1995-05-17|SANDLER ENERGIETECHNIK GMBH & CO KG|Filling and draining of a solar collector|
    DE19515580A1|1994-04-28|1995-11-02|Hans Ing Thurner|Solar energy installation with water flow through collectors|
    ES2319431T3|2003-12-12|2009-05-07|Eurovox Anstalt|SOLAR INSTALLATION|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201531935A|ES2583702B1|2015-12-30|2015-12-30|Low temperature thermal solar installation for heating domestic hot water, heating and industrial processes|ES201531935A| ES2583702B1|2015-12-30|2015-12-30|Low temperature thermal solar installation for heating domestic hot water, heating and industrial processes|
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