Solar cell precursor production device
By designing a solar cell precursor production device including a reactor, a filtration device, a distillation and a water storage tank, the problem of lead iodide wastewater treatment in perovskite solar cell production is solved, and the recycling and utilization of wastewater and the improvement of production efficiency is achieved.
Patent Information
- Application Number
- CN202421483194.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-26
AI Technical Summary
In the production of perovskite solar cells, the production of lead iodide has problems such as large water consumption, unavailability of wastewater, high environmental protection treatment costs and high production risks.
A solar cell precursor production device is designed, including a reactor, a filtration device, a distillation and condensing device and a water storage tank. Through this device, the wastewater is treated and purified, the wastewater is recycled and utilized, and the production efficiency and space utilization are improved through an integrated system.
It realizes the recycling of wastewater, reduces water use and environmental protection costs, improves production efficiency and space utilization, reduces the footprint and labor costs in the production process, and is suitable for other materials with similar processes.
Smart Images
Figure CN222753241U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of solar cells, and specifically discloses a solar cell precursor production device. Background Art
[0002] In recent years, perovskite solar cells have developed rapidly, and their photovoltaic efficiency has been continuously improved. Specifically, when preparing perovskite solar cells, it is necessary to evenly coat a perovskite precursor solution on a transparent conductive glass substrate. Among them, the perovskite precursor solution is usually composed of specific chemical substances, such as lead iodide, formamidine hydroiodide, etc., which are dissolved in an organic solvent to form a precursor solution.
[0003] However, in the process of producing lead iodide, the water that comes into contact with the lead iodide product will contain harmful impurities, mainly lead ions, and the amount of water used is large, resulting in problems such as the inability to discharge wastewater and high environmental treatment costs. In addition, there is currently no special integrated equipment for the production of lead iodide, and the purification process basically relies on manpower, which cannot be strictly controlled and has a high production risk. Utility Model Content
[0004] The purpose of this application is to solve at least part of the technical problems raised in the above content, and this purpose is achieved through the following technical solutions:
[0005] The present application proposes a solar cell precursor production device, including a reactor, a filtering device, a distillation condensation device and a water storage tank. The reactor has a reactant addition port, a water inlet and a product solution discharge port, and the water inlet is connected to new water and / or recycled water; the filtering device has a feed port, a product discharge port and a wastewater discharge port, and the feed port is connected to the product solution discharge port; the distillation condensation device has a liquid inlet, an impurity discharge port and a pure water discharge port, and the liquid inlet is connected to the wastewater discharge port. The distillation condensation device distills the waste water to generate water vapor and condenses the water vapor to collect it; the water storage tank has a recycled water inlet and a recycled water supply port, and the recycled water inlet is connected to the pure water discharge port, and the recycled water supply port is connected to the water inlet of the reactor.
[0006] In some embodiments, the distillation condensation device includes an evaporation chamber and a condensation chamber that are interconnected, the evaporation chamber has a liquid inlet and an impurity outlet, and the condensation chamber has a pure water outlet; a heating module is provided in the evaporation chamber and a condensation module is provided in the condensation chamber.
[0007] In some embodiments, the distillation condensation device is provided with a heat exchange device, and the heating module and the condensation module belong to the hot end and the cold end of a group of heat exchange devices.
[0008] In some embodiments, the heat exchange device includes a refrigerant condenser, a refrigerant evaporator and a refrigerant compressor which are connected end to end in sequence; the refrigerant condenser is the hot end and is arranged in the evaporation chamber, the refrigerant condenser condenses the refrigerant gas inside it and releases heat to the evaporation chamber to evaporate waste water; the refrigerant evaporator is the cold end and is arranged in the condensation chamber, the refrigerant evaporator evaporates the refrigerant liquid inside it and absorbs heat from the condensation chamber to condense water vapor to form recycled water; the refrigerant compressor is arranged outside the distillation condensing device, and the refrigerant compressor compresses the refrigerant gas evaporated by the refrigerant evaporator and supplies it to the refrigerant condenser.
[0009] In some embodiments, the refrigerant condenser includes a heat conducting pipe for conducting the refrigerant; the heat conducting pipe is connected to the refrigerant compressor, and the heat conducting pipe is distributed inside the evaporation chamber.
[0010] In some embodiments, a fin heat conduction structure is provided in the heat pipe.
[0011] In some embodiments, a conductivity sensor is provided in the water tank, the conductivity of the recovered water in the water tank is E1, and the conductivity of the pure water is E2. When E1>E2, the conductivity sensor sends an alarm signal indicating that the water quality is too poor.
[0012] In some embodiments, a first water level sensor and a second water level sensor are disposed in the water tank, and the first water level sensor is located above the second water level sensor.
[0013] In some embodiments, liquid inlet pumps are provided between the wastewater outlet of the filtration device and the liquid inlet of the distillation and condensation device, between the pure water outlet of the distillation and condensation device and the recovered water inlet of the water storage tank, and between the recovered water supply port of the water storage tank and the water inlet of the reactor.
[0014] In some embodiments, a sealing valve is provided between the product solution outlet of the reactor and the feed inlet of the filtration device.
[0015] The solar cell precursor production device provided by the present application has at least the following technical effects:
[0016] In this application, the device is equipped with a lead-containing wastewater treatment system after producing lead iodide, which can treat and purify wastewater, realize wastewater recycling, and reduce water use and environmental protection costs; moreover, the device is designed as an integrated system, which improves production efficiency and space utilization, reduces the floor space in the production process, and can replace manpower for purification processes, saving labor costs; in addition, the device is not only suitable for the production of lead iodide, but also for other materials with similar processes. In summary, the device embodies innovations and advantages in improving production efficiency, reducing costs, enhancing environmental protection, and improving process flexibility. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to better combine the contents shown in the drawings of the specification with the contents described in the specific implementation methods, the drawings of the specification are briefly introduced below. It can be understood that the drawings of the specification mentioned below only schematically show some embodiments of the relevant technical solutions and the solutions of this application, and those skilled in the art can also make drawings showing other embodiments without creative work.
[0018] Specifically, the annotations to the drawings of the specification are as follows:
[0019] Figure 1 This is a front schematic diagram of the solar cell precursor production device described in an embodiment of the present application.
[0020] Specifically, the annotations to the accompanying drawings in the specification are as follows:
[0021] 100. Solar cell precursor production device; 110. Reactor; 120. Filtering device; 130. Distillation condensing device; 131. Evaporation chamber; 132. Condensation chamber; 140. Water storage tank; a. Electromagnetic flowmeter; b1. Conductivity sensor; b2. First water level sensor; b3. Second water level sensor; c. Auxiliary heating module; d. Heat exchange device; d1. Refrigerant condenser; d11. Heat pipe; d12. Condenser body; d13. Fin heat conduction structure; d2. Refrigerant evaporator; d3. Refrigerant compressor; d4. Expansion valve; e. Liquid inlet pump; f. Sealing valve. DETAILED DESCRIPTION
[0022] In order to make the contents of the embodiments of the present application clearer, the following description will be made in conjunction with the accompanying drawings. It can be understood that the contents mentioned below are only part of the embodiments of the present application, rather than all the embodiments. Based on this, other embodiments derived by those skilled in the art without creative work are within the scope of protection of this application.
[0023] It should be understood that the terms used herein are for the purpose of describing specific embodiments only and are not intended to be limiting, and unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used herein may also be meant to include plural forms. The terms "include", "comprise", and "have" are inclusive and therefore specify the presence of stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.
[0024] Although the terms first, second, etc. may be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. In addition, in the description of the present application, unless otherwise clearly specified and limited, the terms "set", "connect", and "install" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0025] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature, such as "inside", "outside", "end", "side", "middle", "upper", "lower", "high", "lower", "axial", "circumferential", "radial", "horizontal", "vertical", "first direction", "second direction", etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation in addition to the orientation shown in the figures.
[0026] The following mainly describes the embodiments of the present application in conjunction with the accompanying drawings.
[0027] The present application proposes a solar cell precursor production device 100, referring to Figure 1 , including a reactor 110, a filter device 120, a distillation condensation device 130 and a water storage tank 140. The reactor 110 has a reactant addition port, a water inlet and a product solution outlet, and the water inlet is fed with new water and / or recycled water; the filter device 120 has a feed port, a product outlet and a wastewater outlet, and the feed port is connected with the product solution outlet; the distillation condensation device 130 has a liquid inlet, an impurity outlet and a pure water outlet, and the liquid inlet is connected with the wastewater outlet. The distillation condensation device 130 distills the waste water to generate water vapor and condenses the water vapor to collect it; the water storage tank 140 has a recycled water inlet and a recycled water supply port, the recycled water inlet is connected with the pure water outlet, and the recycled water supply port is connected with the water inlet of the reactor 110.
[0028] In this application, the device is equipped with a lead-containing wastewater treatment system after producing lead iodide, which can treat and purify wastewater, realize wastewater recycling, and reduce water use and environmental protection costs; moreover, the device is designed as an integrated system, which improves production efficiency and space utilization, reduces the floor space in the production process, and can replace manpower for purification processes, saving labor costs; in addition, the device is not only suitable for the production of lead iodide, but also for other materials with similar processes. In summary, the device embodies innovations and advantages in improving production efficiency, reducing costs, enhancing environmental protection, and improving process flexibility.
[0029] In some embodiments, reference Figure 1 The distillation condensation device 130 includes an evaporation chamber 131 and a condensation chamber 132 which are interconnected. The evaporation chamber 131 has a liquid inlet and an impurity outlet, and the condensation chamber 132 has a pure water outlet. A heating module is provided in the evaporation chamber 131, and a condensation module is provided in the condensation chamber 132. Further, in some embodiments, the distillation condensation device 130 is provided with a heat exchange device d, and the heating module and the condensation module belong to the hot end and the cold end of a group of heat exchange devices d. Furthermore, in some embodiments, the heat exchange device d includes a refrigerant condenser d1, a refrigerant evaporator d2 and a refrigerant compressor d3 which are connected end to end in sequence; the refrigerant condenser d1 is the hot end and is arranged in the evaporation chamber 131, the refrigerant condenser d1 condenses the refrigerant gas inside it and releases heat to the evaporation chamber 131 to evaporate waste water; the refrigerant evaporator d2 is the cold end and is arranged in the condensation chamber 132, the refrigerant evaporator d2 evaporates the refrigerant liquid inside it and absorbs heat from the condensation chamber 132 to condense water vapor to form recovered water; the refrigerant compressor d3 is arranged outside the distillation condensation device 130, and the refrigerant compressor d3 compresses the refrigerant gas evaporated by the refrigerant evaporator d2 and supplies it to the refrigerant condenser d1.
[0030] In the above embodiments, it can be understood that when the refrigerant gas condenses into liquid, heat is released, and the released heat evaporates the waste water into water vapor, and when the refrigerant liquid evaporates, heat is absorbed, and the water vapor is condensed into recycled water. Figure 1 An auxiliary heating module c may also be provided in the evaporation chamber 131 to evaporate the waste water, or to perform low temperature distillation through the residual working temperature of the compressor.
[0031] In some embodiments, reference Figure 1 The refrigerant condenser d1 includes a heat conducting pipe d11 for conducting the refrigerant; the heat conducting pipe d11 is connected to the refrigerant compressor d3, and the heat conducting pipe d11 is distributed inside the evaporation chamber 131. Furthermore, in some embodiments, a fin heat conducting structure d13 is provided inside the heat conducting pipe d11.
[0032] In the above embodiment, the heat conducting pipe d11 and the heat conducting fin structure d13 inside it enhance the heat exchange efficiency between the refrigerant and the evaporation chamber 131, and enhance the distillation rate. Figure 1 In some embodiments, the refrigerant condenser d1 further includes a condenser body d12 connected to the heat pipe d11 , and the condenser body d12 is disposed outside the evaporation chamber 131 .
[0033] In some embodiments, reference Figure 1 , a conductivity sensor b1 is provided in the water storage tank 140, the conductivity of the recovered water in the water storage tank 140 is E1, and the conductivity of the pure water is E2, then when E1>E2, the conductivity sensor b1 sends an alarm signal indicating that the water quality is too poor. In addition, in some embodiments, referring to Figure 1 A first water level sensor b2 and a second water level sensor b3 are provided in the water tank 140, and the first water level sensor b2 is located above the second water level sensor b3.
[0034] Specifically, the height of the first water level sensor b2 in the water tank 140 is H1, the height of the second water level sensor b3 in the water tank 140 is H2, and the water level in the water tank 140 is H3; when H3>H1, the first water level sensor b2 sends an alarm signal of excessive water volume; when H3<H2, the second water level sensor b3 sends an alarm signal of insufficient water volume.
[0035] In the above embodiment, the conductivity sensor b1 and the water level sensor are used to monitor the water quality and water quantity in real time, and the changes in water quality and water quantity are discovered and fed back in time, so as to improve the degree of intelligent control, improve production efficiency, and avoid production accidents.
[0036] In some embodiments, reference Figure 1 A liquid inlet pump e is provided between the wastewater outlet of the filter device 120 and the liquid inlet of the distillation condensation device 130, between the pure water outlet of the distillation condensation device 130 and the recycled water inlet of the water storage tank 140, and between the recycled water supply port of the water storage tank 140 and the water inlet of the reactor 110. In some embodiments, a sealing valve f is provided between the product solution outlet of the reactor 110 and the feed port of the filter device 120.
[0037] In the above embodiment, the liquid inlet pump e provides the power source for wastewater purification and recycling, and the sealing valve f controls the start and stop of the filtering process; in addition, in some embodiments, the filtering device 120 also has a cleaning water inlet, which allows new water and / or recycled water to be introduced into the cleaning water inlet to clean the product and then discharged from the wastewater outlet; the cleaning water inlet is connected to the recycled water supply port. Specifically, in some embodiments, refer to Figure 1The water inlet of the reactor 110 and / or the cleaning water inlet of the filter device 120 are provided with an electromagnetic flowmeter a, which controls the start and stop of water delivery and the flow rate, thereby improving the degree of intelligent control and improving production efficiency.
[0038] In particular, the term "and / or" in this application should be understood as follows:
[0039] First, the term “and / or” located between a first subject and a second subject includes any one of the following meanings: (1) only the first subject; (2) only the second subject; and (3) the first subject and the second subject.
[0040] Secondly, the term "and / or" between the last two entities among three or more entities refers to at least any one of the entities. For example, "the first entity, the second entity and / or the third entity" has the same meaning as "the first entity and / or the second entity and / or the third entity", specifically including the following combinations: (1) only the first entity; (2) only the second entity; (3) only the third entity; (4) the first entity and the second entity without the third entity; (5) the first entity and the third entity without the second entity; (6) the second entity and the third entity without the first entity; and (7) the first entity, the second entity, and the third entity.
[0041] In addition, although the above content describes the embodiments of the present application in conjunction with the accompanying drawings, those skilled in the art can also make various modifications and variations without departing from the concept of the present application, and such modifications and variations are all within the scope defined by the attached claims.
Claims
1. A solar cell precursor production device, characterized in that: include: A reaction kettle (110), wherein the reaction kettle (110) has a reactant addition port, a water inlet, and a product solution discharge port, wherein new water and / or recycled water is introduced into the water inlet; A filtration device (120), the filtration device (120) having a feed inlet, a product outlet and a wastewater outlet, the feed inlet being in communication with the product solution outlet; A distillation and condensation device (130), the distillation and condensation device (130) having a liquid inlet, an impurity outlet and a pure water outlet, the liquid inlet being connected to the wastewater outlet, the distillation and condensation device (130) distilling wastewater to generate water vapor and condensing the water vapor for collection; A water storage tank (140), wherein the water storage tank (140) has a recycled water inlet and a recycled water supply port, wherein the recycled water inlet is connected to the pure water outlet, and the recycled water supply port is connected to the water inlet of the reactor (110).
2. The solar cell precursor production device according to claim 1, characterized in that: The distillation condensation device (130) comprises an evaporation chamber (131) and a condensation chamber (132) which are interconnected, the evaporation chamber (131) having the liquid inlet and the impurity discharge port, and the condensation chamber (132) having the pure water discharge port; A heating module is provided in the evaporation chamber (131) and a condensation module is provided in the condensation chamber (132).
3. The solar cell precursor production device according to claim 2, characterized in that: The distillation condensation device (130) is provided with a heat exchange device (d), and the heating module and the condensation module belong to the same group of hot end and cold end of the heat exchange device (d).
4. The solar cell precursor production device according to claim 3, characterized in that: The heat exchange device (d) comprises a refrigerant condenser (d1), a refrigerant evaporator (d2) and a refrigerant compressor (d3) which are connected end to end in sequence; The refrigerant condenser (d1) is a hot end and is arranged in the evaporation chamber (131), and the refrigerant condenser (d1) condenses the refrigerant gas inside it and releases heat to the evaporation chamber (131) to evaporate waste water; The refrigerant evaporator (d2) is a cold end and is arranged in the condensation chamber (132). The refrigerant evaporator (d2) evaporates the refrigerant liquid inside it and absorbs heat from the condensation chamber (132) to condense water vapor to form recovered water; The refrigerant compressor (d3) is disposed outside the distillation condensation device (130), and the refrigerant compressor (d3) compresses the refrigerant gas evaporated from the refrigerant evaporator (d2) and supplies the compressed refrigerant gas to the refrigerant condenser (d1).
5. The solar cell precursor production device according to claim 4, characterized in that: The refrigerant condenser (d1) comprises a heat conduction pipe (d11) for conducting the refrigerant; The heat-conducting pipe (d11) is connected to the refrigerant compressor (d3), and the heat-conducting pipe (d11) is distributed inside the evaporation chamber (131).
6. The solar cell precursor production device according to claim 5, characterized in that: A fin heat conduction structure (d13) is provided in the heat conduction pipe (d11).
7. The solar cell precursor production device according to claim 1, characterized in that: A conductivity sensor (b1) is provided in the water storage tank (140). The conductivity of the recovered water in the water storage tank (140) is E1, and the conductivity of the pure water is E2. When E1>E2, the conductivity sensor (b1) sends an alarm signal indicating that the water quality is too poor.
8. The solar cell precursor production device according to claim 1, characterized in that: A first water level sensor (b2) and a second water level sensor (b3) are provided in the water storage tank (140), and the first water level sensor (b2) is located above the second water level sensor (b3).
9. The solar cell precursor production device according to any one of claims 1 to 8, characterized in that: A liquid inlet pump (e) is provided between the waste water outlet of the filtering device (120) and the liquid inlet of the distillation and condensation device (130), between the pure water outlet of the distillation and condensation device (130) and the recovered water inlet of the water storage tank (140), and between the recovered water supply port of the water storage tank (140) and the water inlet of the reaction kettle (110).
10. The solar cell precursor production device according to any one of claims 1 to 8, characterized in that: A sealing valve (f) is provided between the product solution discharge port of the reaction kettle (110) and the feed port of the filtering device (120).