Drainer device capable of preventing gas from flowing backwards
By designing a drain device that prevents gas backflow, using water sealing technology to separate the exhaust gas from overflow pipelines, the secondary pollution problem caused by gas reflux in the production process of heterojunction solar cells is solved, and the cleaning process of the battery is ensured is clean. .
Patent Information
- Application Number
- CN202323449030.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-18
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-18
AI Technical Summary
During the production process of heterojunction solar cells (HJT), when the acid-base solution is cleaned, the gas will return to the inside of the tank along the overflow pipeline, resulting in secondary contamination.
A drain device for preventing gas backflow is designed, including a drain body and a cylinder body. The cylinder body extends into the body and is connected to the water outlet of the overflow pipe. The exhaust gas of the waste discharge pipe is separated by water sealing to prevent it from returning to Groove body.
It effectively prevents the return of exhaust gas to the inside of the tank body, prevents secondary contamination, and protects the cleaning process of the battery cells.
Smart Images
Figure CN222282037U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of tank-type cleaning equipment for solar cell sheets, and in particular relates to a drain device for preventing gas backflow. Background Art
[0002] In the production process of heterojunction solar cells (HJT), the battery cells are cleaned and texturized with acid and alkali solutions. The acid and alkali solutions are stored in the tank of the cleaning equipment. The tank is equipped with a high-level overflow pipe. When the tank overflows and discharges, the water flow is slow and small, and gas will return to the inside of the tank along the overflow pipe. The gas contains acidic or alkaline gas, and it is a pollutant gas, which will cause secondary pollution to the battery cells being cleaned in the tank.
[0003] Therefore, based on the above technical problems, it is necessary to design a new downcomer device for preventing gas backflow. Utility Model Content
[0004] The utility model aims to provide a drain device for preventing gas backflow, so as to solve the technical problem that gas returns to the inside of a tank along an overflow pipe.
[0005] In order to solve the above technical problems, the utility model provides a drain device for preventing gas backflow, comprising:
[0006] A drain body and a drain cylinder;
[0007] The drain cylinder extends into the drain body, and the drain cylinder is communicated with the drain body;
[0008] The drain cylinder is suitable for connecting with the water outlet of the overflow pipe of the tank;
[0009] The drain body is suitable for connecting to a waste liquid storage tank;
[0010] The lowest end of the drain cylinder extending into the drain body is lower than the outlet joint of the drain body;
[0011] The liquid flowing out of the water outlet of the overflow pipe of the tank body flows into the drain body through the drain cylinder, and then flows into the waste liquid storage tank from the drain body.
[0012] Furthermore, an inlet joint is provided at one end of the sewer cylinder, and the inlet joint is located at the end of the sewer cylinder extending out of the sewer body. The sewer cylinder is suitable for being connected to the water outlet of the overflow pipe of the trough body through the inlet joint, and when the sewer cylinder is connected to the water outlet of the overflow pipe of the trough body, the sewer cylinder is in a vertical state, and at this time, the inlet joint is located at the top of the sewer cylinder.
[0013] Furthermore, a cylinder cover is provided at the other end of the drain cylinder, and the cylinder cover is located at the end of the drain cylinder extending into the drain body.
[0014] Furthermore, a through hole is provided on the cylinder cover, so that the drain cylinder is connected with the drain body through the through hole.
[0015] Furthermore, the drain body is provided with an outlet joint, and the drain body is suitable for being connected to a waste liquid storage tank through the outlet joint.
[0016] Furthermore, the lowest point of the inner wall of the outlet joint is higher than the lowest point of the cylinder cover.
[0017] Furthermore, the drain body and the drain cylinder are suitable for using PPH material or PVDF material.
[0018] Furthermore, the lowest point of the inner wall of the outlet joint is 40 to 60 mm higher than the lowest point of the cylinder cover.
[0019] Furthermore, the drain body and the drain cylinder are suitable for being integrally formed.
[0020] Furthermore, the drain body and the drain cylinder are suitable for being connected by welding or integrally formed.
[0021] The beneficial effects of the utility model are as follows: the utility model is through a drain body and a drain cylinder; the drain cylinder extends into the drain body, and the drain cylinder is communicated with the drain body; the drain cylinder is suitable for being connected to the water outlet of the overflow pipe of the tank body; the drain body is suitable for being connected to the waste liquid storage tank; the lowest end of the drain cylinder extending into the drain body is lower than the outlet joint of the drain body; the liquid flowing out of the water outlet of the overflow pipe of the tank body flows into the drain body through the drain cylinder, and then flows into the waste liquid storage tank from the drain body; the waste gas of the waste discharge pipe is isolated by water sealing and cannot be returned to the tank body, thereby avoiding secondary pollution caused by the waste gas.
[0022] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.
[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 It is a structural schematic diagram of a drain device for preventing gas backflow of the utility model;
[0026] Figure 2 It is a schematic diagram of the flow direction of liquid and gas of the utility model;
[0027] Figure 3 It is a schematic diagram of the state of the water seal of the utility model;
[0028] Figure 4 It is a structural schematic diagram of the through hole of the utility model.
[0029] In the figure:
[0030] 1. drainer body, 2. drainer cylinder, 3. inlet joint, 4. cylinder cover, 5. outlet joint, 6. through hole. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] like Figures 1 to 4 As shown, this embodiment 1 provides a gas backflow prevention drain device, comprising: a drain body 1 and a drain cylinder 2; the drain cylinder 2 extends into the drain body 1, and the drain cylinder 2 is connected to the drain body 1; the drain cylinder 2 is suitable for connecting to the water outlet of the overflow pipe of the tank body; the drain body 1 is suitable for connecting to the waste liquid storage tank; the lowest end of the drain cylinder 2 extending into the drain body 1 is lower than the outlet joint 5 of the drain body 1; the liquid flowing out of the water outlet of the overflow pipe of the tank body flows into the drain body 1 through the drain cylinder 2, and then flows into the waste liquid storage tank from the drain body 1; the waste gas of the waste pipe is isolated from returning to the tank body by using a water seal, thereby avoiding secondary pollution caused by the waste gas (the flow direction of the gas is shown as f in the figure).
[0033] In this embodiment, the inlet joint 3 of the drain cylinder 2 and the water outlet of the tank overflow pipe can be connected by welding, so that the drain cylinder 2 can be firmly and tightly connected to the water outlet of the tank overflow pipe.
[0034] In the present embodiment, an inlet joint 3 is provided at one end of the drain cylinder 2, and the inlet joint 3 is located at the end of the drain cylinder 2 extending out of the drain body 1, and the drain cylinder 2 is suitable for being connected with the water outlet of the overflow pipe of the tank body through the inlet joint 3, and when the drain cylinder 2 is connected with the water outlet of the overflow pipe of the tank body, the drain cylinder 2 is in a vertical state, and the liquid flows into the drain cylinder 2 from top to bottom (the flow direction of the liquid is shown as F in the accompanying drawing), and at this time, the inlet joint 3 is located at the top of the drain cylinder 2; The drain cylinder 2 can guide the liquid flowing out of the water outlet of the tank overflow pipe into the drain body 1. Since the lowest end of the drain cylinder 2 extending into the drain body 1 is lower than the outlet joint 5 of the drain body 1, a water seal is achieved between the inside of the drain body 1 and the drain cylinder 2, and the returning gas is isolated, preventing the exhaust gas from returning to the tank overflow pipe through the drain cylinder 2, thereby preventing the exhaust gas from returning to the tank; the inlet joint 3 and the drain cylinder 2 can be integrally formed, or they can be connected by welding or the like.
[0035] In this embodiment, a cylinder cover 4 is provided at the other end of the drain cylinder 2, and the cylinder cover 4 is located at the end of the drain cylinder 2 extending into the drain body 1; the cylinder cover 4 can reduce the opening size of the end face of the drain cylinder 2.
[0036] In this embodiment, a through hole 6 is provided on the cylinder cover 4, so that the drain cylinder 2 is connected with the drain body 1 through the through hole 6, so that the liquid in the drain cylinder can flow out and flow into the drain body 1; the space between the end surface of the drain cylinder 2 extending into the drain body 1 and the interior of the drain body 1 can be a liquid storage space, and water sealing is achieved by the liquid in the liquid storage space.
[0037] In this embodiment, the size of the through hole 6 is definitely smaller than the cross-sectional size of the drain cylinder 2. In this way, when the water seal between the drain body 1 and the drain cylinder 2 has not been completed, that is, the liquid has just flowed into the drain body 1 and the liquid level has not yet submerged the through hole 6, if a small amount of exhaust gas returns at this time, the size of the through hole 6 can reduce the amount of returned gas, thereby avoiding secondary contamination of the battery cells being cleaned inside the tank by excessive returned gas.
[0038] In this embodiment, the drain body 1 is provided with an outlet joint 5, and the drain body 1 is suitable for connecting with the waste liquid storage tank through the outlet joint 5, and the outlet joint 5 allows the liquid to flow into the waste liquid storage tank when it accumulates to a certain height;
[0039] In this embodiment, the outlet connector 5 and the waste liquid storage tank can be connected by welding to ensure a tight and firm connection.
[0040] In this embodiment, the lowest point of the inner wall of the outlet joint 5 is higher than the lowest point of the cylinder cover 4, so that the liquid in the liquid storage space can be water-tight.
[0041] In this embodiment, the drain body 1 and the drain cylinder 2 are suitable for using PPH material or PVDF material to avoid corrosion by liquid.
[0042] In this embodiment, the lowest point of the inner wall of the outlet joint 5 is 40 to 60 mm higher than the lowest point of the cylinder cover 4, which can ensure the water-tight effect.
[0043] In the present embodiment, the drain body 1 and the drain cylinder 2 are suitable for being integrally formed to avoid cracks in the drain body 1 or the drain cylinder 2 and to avoid leakage of exhaust gas.
[0044] In this embodiment, the drain body 1 and the drain cylinder 2 are suitable for being connected by welding or integrally formed. Welding and integrally formed can achieve a loose connection between the drain body 1 and the drain cylinder 2 to avoid leakage.
[0045] In this embodiment, when the acid-base solution in the tank body of the cleaning equipment is discharged through the high-level overflow pipe, the acid-base solution (i.e., liquid) flows from the overflow pipe through the inlet joint 3, the drain cylinder 2 and the through hole 6 into the drain body 1, and is first accumulated in the liquid storage space. As the amount of liquid inflow increases, the liquid level in the liquid storage space continues to rise. When the liquid level is higher than the lowest point of the outlet joint 5, the liquid flows into the waste liquid storage tank through the outlet joint 5. Since the cylinder cover 4 is lower than the lowest point of the inner wall of the outlet joint 5, and the drain cylinder 2 is a sealed cylinder, with the help of the acid-base solution, the drain cylinder 2 forms a water seal with the liquid storage space, and the exhaust gas in the pipe connected to the outlet joint 5 cannot flow back into the tank body, thereby protecting the battery cells from contamination and damage in the tank body.
[0046] In summary, the utility model comprises a drain body 1 and a drain cylinder 2; the drain cylinder 2 extends into the drain body 1, and the drain cylinder 2 is communicated with the drain body 1; the drain cylinder 2 is suitable for being connected to the water outlet of the overflow pipe of the tank body; the drain body 1 is suitable for being connected to the waste liquid storage tank; the lowest end of the drain cylinder 2 extending into the drain body 1 is lower than the outlet joint 5 of the drain body 1; the liquid flowing out of the water outlet of the overflow pipe of the tank body flows into the drain body 1 through the drain cylinder 2, and then flows into the waste liquid storage tank from the drain body 1; the waste gas of the waste pipe is isolated by water sealing and cannot be returned to the tank body, thereby avoiding secondary pollution caused by the waste gas.
[0047] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.
[0048] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0049] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0050] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.
[0051] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0052] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
[0053] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A drain device for preventing gas backflow, characterized in that: include: A drain body and a drain cylinder; The drain cylinder extends into the drain body, and the drain cylinder is communicated with the drain body; The drain cylinder is suitable for connecting with the water outlet of the overflow pipe of the tank; The drain body is suitable for connecting to a waste liquid storage tank; The lowest end of the drain cylinder extending into the drain body is lower than the outlet joint of the drain body; The liquid flowing out of the water outlet of the overflow pipe of the tank body flows into the drain body through the drain cylinder, and then flows into the waste liquid storage tank from the drain body.
2. The drain device for preventing gas backflow as claimed in claim 1, characterized in that: An inlet joint is provided at one end of the drain cylinder, and the inlet joint is located at the end of the drain cylinder extending out of the drain body. The drain cylinder is suitable for being connected to the water outlet of the overflow pipe of the tank body through the inlet joint, and when the drain cylinder is connected to the water outlet of the overflow pipe of the tank body, the drain cylinder is in a vertical state, and the inlet joint is located at the top of the drain cylinder.
3. The drain device for preventing gas backflow as claimed in claim 2, characterized in that: A cylinder cover is arranged at the other end of the drain cylinder, and the cylinder cover is located at one end of the drain cylinder extending into the drain body.
4. The drain device for preventing gas backflow as claimed in claim 3, characterized in that: The cylinder cover is provided with a through hole, so that the drain cylinder is connected with the drain body through the through hole.
5. The drain device for preventing gas backflow as claimed in claim 4, characterized in that: The drain body is provided with an outlet joint, and the drain body is suitable for being connected to a waste liquid storage tank through the outlet joint.
6. The drain device for preventing gas backflow as claimed in claim 5, characterized in that: The lowest point of the inner wall of the outlet joint is higher than the lowest point of the cylinder cover.
7. The drain device for preventing gas backflow as claimed in claim 1, characterized in that: The drain body and the drain cylinder are suitable for using PPH material or PVDF material.
8. The drain device for preventing gas backflow as claimed in claim 6, characterized in that: The lowest point of the inner wall of the outlet joint is 40 to 60 mm higher than the lowest point of the cylinder cover.
9. The drain device for preventing gas backflow as claimed in claim 1, characterized in that: The drainer body and the drainer cylinder are suitable for being integrally formed.
10. The drain device for preventing gas backflow as claimed in claim 1, characterized in that: The drain body and the drain cylinder are suitable for being connected by welding or integrally formed.