Constant-temperature water film structure
By installing heating rods, insulation layers, and spiral grooves inside the water film main pipe, a uniform and constant water temperature is achieved, solving the problems of poor cleaning ability and high cost caused by excessively low water temperature, and improving the efficiency and product yield of the photovoltaic wet process industry.
Patent Information
- Application Number
- CN202423158310.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The existing water film structure suffers from low water temperature and heat loss in winter, resulting in poor downstream process cleaning ability, reduced reaction rate, increased chemical consumption, and increased cost.
A heating rod and temperature sensor are installed inside the main water film pipe, and an insulation layer is installed on the outer wall and the outer wall of the distribution pipe. A spiral groove is installed on the inner wall to ensure that the water temperature is uniform and constant. The flow of water is controlled by a valve to form a constant temperature water film.
It improved the reaction rate and cleaning ability of the downstream process, reduced the consumption of chemicals and labor costs, and improved the product yield.
Smart Images
Figure CN223745195U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic technology field, concretely is a constant temperature water film structure. BACKGROUND
[0002] Water film structure needs to be used in the production process of solar cell piece. The current water film structure is mainly composed of water film main pipe, water dripping box and valve, and the prior art is that water in the water film main pipe is sprayed to the surface of product under the action of constant pressure gravity through the water dripping box, and uniform protective water film is formed on the upper surface of product (water film can isolate external pollutants and oxidants, reduces the damage to the surface of silicon wafer; water film can also change the friction coefficient and surface performance of silicon wafer surface, so that the surface of silicon wafer is more smooth, has better self-cleaning property and anti-adhesion), and the valve controls the opening and closing and flow size, so that the water film is uniformly covered on the upper surface of product, prevents the upper surface from being damaged in the reaction of the later process, and protects the product.
[0003] The current water film structure adopts factory pure water for water supplement, the water temperature is low in winter, the specific heat capacity of water is large, and heat is easy to lose, so the water film cannot reach the expected temperature, which leads to poor cleaning ability in the later process reaction, reduces the reaction rate, increases the consumption of chemical water, improves the frequency of artificial sampling inspection, and increases the cost. UTILITY MODEL CONTENT
[0004] The utility model wants to overcome the prior art's defects, and provides a constant temperature water film structure, which comprises a water film main pipe, a water supplement opening arranged on the upper side of the water film main pipe and connected therewith, parallelly arranged water distribution pipes arranged on the lower side of the water film main pipe and connected therewith, valves arranged on the water distribution pipes respectively, and water dripping boxes arranged in parallel and connected with water outlets of the water distribution pipes one by one.
[0005] The water film main pipe is provided with heating rods corresponding to the water film main pipe for heating the water in the water film main pipe, and the water film main pipe is further provided with temperature sensors for measuring the temperature of the water in the water film main pipe.
[0006] The length of the heating rods is equal to the length of the water film main pipe, so that the water in the water film main pipe is heated uniformly.
[0007] The heating rods are symmetrically arranged at the two ends of the water film main pipe and extend inward along the axial direction of the water film main pipe to uniformly cover the length of the water film main pipe, so that the temperature of the water in the water film main pipe is more constant.
[0008] The outer wall of the water film main pipe and the outer wall of the water distribution pipe are both provided with heat preservation layers to reduce heat loss.
[0009] The inner wall of the water film main pipe is provided with helical grooves in the axial direction to improve the turbulence intensity of the water flowing to the two ends from the water supplement opening, thereby improving the heating uniformity.
[0010] Compared with the prior art, the utility model discloses the beneficial effects are: through increasing water film constant temperature function, its application in photovoltaic wet method industry, effectively solved the influence of water temperature too low to the reaction of the back-end process, improved the reaction rate and cleaning capacity of product, reduced the chemical water consumption and artificial cost, greatly improved the benefit and product yield. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the front view structural schematic diagram of the utility model.
[0012] In the drawing: 10. water film main pipe, 20. water supplement mouth, 30. water distribution pipe, 31. valve, 40. water drop box, 50. heating rod, 60. temperature sensor. DETAILED DESCRIPTION
[0013] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model.
[0014] Embodiment 1:
[0015] Please refer to Figure 1 The constant temperature water film structure provided in this embodiment 1 includes water film main pipe 10, water supplement mouth 20 arranged on the upside of water film main pipe 10 and communicated, water distribution pipe 30 and valve 31 arranged on the downside of water film main pipe 10 in parallel and communicated, and water drop box 40 arranged in parallel and communicated with the water outlet of water distribution pipe 30.
[0016] Among them, water film main pipe 10 is correspondingly provided with heating rod 50 for heating the internal water, and temperature sensor 60 for measuring the internal water temperature is further arranged on water film main pipe 10; the length of heating rod 50 evenly covers the length of water film main pipe 10, so that the water in water film main pipe 10 is heated evenly, and heating rod 50 is symmetrically installed at the two ends of water film main pipe 10 and extends inward along the axial direction of water film main pipe 10 to evenly cover the length of water film main pipe 10, so that the water temperature in water film main pipe 10 is more constant.
[0017] The embodiment 1 installs the heating rod 50 on the water film main pipe 10, the length of the heating rod 50 uniformly covers the length of the water film main pipe 10, so that the water in the water film main pipe 10 is heated more uniformly; the heating rod 50 adopts the installation mode of two ends, so that the water temperature in the water film main pipe 10 is more constant; the size and power of the heating rod 50 are calculated and simulated, so that the water in the water film main pipe 10 can quickly and uniformly reach the heating constant temperature effect; the water in the water film main pipe 10 enters the water dripping box 40 through the water distribution pipe 30 controlled by the valve 31, and then is uniformly sprayed to the product surface to form a water film; the temperature sensor 60 is arranged to accurately control the water temperature in the water film main pipe 10, so that the water film maintains constant temperature and prevents affecting the effect of the rear-end process.
[0018] Embodiment 2:
[0019] Based on the embodiment 1, in the embodiment 2, the outer wall of the water film main pipe 10 and the outer wall of the water distribution pipe 30 are both provided with a heat preservation layer to reduce heat loss and further improve the heating efficiency.
[0020] Embodiment 3:
[0021] Based on the embodiment 1 or 2, in the embodiment 2, the inner wall of the water film main pipe 10 is provided with a spiral groove in the axial direction to improve the turbulence intensity of the water entering from the water supplementing port 20 to flow to both ends, thereby improving the heating uniformity.
[0022] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. A constant temperature water film structure, characterized by: The water film main pipe (10) is provided with a water supplementing opening (20) on the upper side and communicated with, a water distributing pipe (30) arranged in parallel on the lower side and communicated with, and a valve (31) arranged on the water distributing pipe (30) respectively, and a water dripping box (40) arranged in parallel and communicated with the water outlet of the water distributing pipe (30) one by one. The water film main pipe (10) is correspondingly provided with a heating rod (50) for heating the water inside, and a temperature sensor (60) for measuring the temperature of the water inside is arranged on the water film main pipe (10).
2. The constant temperature water film structure according to claim 1, characterized by: The length of the heating rod (50) uniformly covers the length of the water film main pipe (10), so that the water inside the water film main pipe (10) is uniformly heated.
3. The constant temperature water film structure according to claim 2, characterized by: The heating rod (50) is symmetrically installed at both ends of the water film main pipe (10) and extends inward along the axial direction of the water film main pipe (10) to uniformly cover the length of the water film main pipe (10), so that the water temperature inside the water film main pipe (10) is more constant.
4. The constant temperature water film structure according to claim 1, characterized by: The outer wall of the water film main pipe (10) and the outer wall of the water distributing pipe (30) are both provided with a heat preservation layer to reduce heat loss.
5. The constant temperature water film structure according to claim 1, characterized by: The inner wall of the water film main pipe (10) is provided with a spiral groove in the axial direction to improve the turbulence intensity when the water entering from the water supplementing opening (20) flows to both ends, thereby improving the uniformity of heating.