Chlorine recovery device
By designing a chlorine recovery device, and using jet pumps and switching components to control the alternating reaction of chlorine and reaction liquid in different reaction tanks, the problem of incomplete utilization of chlorine is solved, and efficient recovery and environmentally friendly utilization of chlorine are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN RISCO ENVIRONMENTAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, chlorine gas is not fully utilized during the etching process, resulting in resource waste and additional costs for exhaust gas treatment, failing to meet the requirements for full resource utilization and environmental protection.
A chlorine recovery device was designed, which controls the alternating reaction of chlorine and reaction liquid in different reaction tanks through jet pumps and switching components. Combined with multiple contact fins and one-way valve design, it ensures that chlorine and reaction liquid react fully and are recovered.
This improves the chlorine recovery rate, avoids the need for additional exhaust gas treatment equipment, and achieves efficient resource utilization and environmental protection requirements.
Smart Images
Figure CN224167243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chlorine recovery technology, specifically to a chlorine recovery device. Background Technology
[0002] Etching is a crucial process in printed circuit board manufacturing. Among these processes, acid etching is widely used due to its advantages such as minimal side etching, high precision etching capability, and ease of rate control. As the copper etching reaction proceeds, the concentration of divalent copper ions in the solution continuously decreases, while the accumulation of monovalent copper ions increases. Consequently, the redox potential of the solution decreases, resulting in a rapid decline in etching rate, a rapid weakening of etching capability, and a deterioration in etching effect, until the etching process eventually becomes ineffective.
[0003] To maintain the copper-etching ability of the etching solution, it is necessary to activate and regenerate the solution to quickly convert monovalent copper ions into divalent copper ions. This is typically achieved by passing an acidic etching solution into a diaphragm electrolytic cell. The electrolysis primarily generates chlorine gas, which then reacts with the etching solution in a redox reaction. Therefore, the etching solution is often used as the reaction liquid to treat and recover chlorine gas.
[0004] However, since the chemical reaction between chlorine and the reaction liquid takes a certain amount of time, the continuous introduction of chlorine cannot be fully utilized. In order to prevent chlorine leakage, an additional tail gas treatment device is required, which increases costs and fails to meet the requirements of full resource utilization and environmental protection. Summary of the Invention
[0005] The purpose of this invention is to provide a chlorine recovery device to solve the technical problems in the prior art.
[0006] To achieve the above objectives, the present invention provides a chlorine recovery device, comprising a conveying mechanism, a reaction mechanism, and a storage tank. The conveying mechanism includes a jet pump and an ejector, the jet pump being connected to the ejector. The jet pump has an inlet, and the ejector has a first outlet and a second outlet. The jet pump has a switching component that can block either the first outlet or the second outlet. The reaction mechanism includes a first reaction tank and a second reaction tank. The first reaction tank is connected to the first outlet, and the second reaction tank is connected to the second outlet. The first reaction tank has a first air inlet, and the second reaction tank has a second air inlet. Chlorine gas is supplied to both the first and second air inlets, and both the first and second air inlets are equipped with switching valves. The storage tank is located on one side of the first and second reaction tanks, and both the first and second reaction tanks are connected to the storage tank.
[0007] Furthermore, the bottom of the first reaction vessel is connected to the storage tank via a first connecting pipe, and the bottom of the second reaction vessel is connected to the storage tank via a second connecting pipe.
[0008] Furthermore, both the first connecting pipe and the second connecting pipe are equipped with a one-way valve.
[0009] Furthermore, the switching component is a solenoid valve.
[0010] Furthermore, the first reaction vessel and the second reaction vessel are provided with multiple contact fins, and the liquid can adhere to the surface of the multiple contact fins.
[0011] Furthermore, both the first reaction vessel and the second reaction vessel are equipped with pressure relief valves.
[0012] Furthermore, both the first reaction vessel and the second reaction vessel are supported by supporting legs.
[0013] The beneficial effects of this utility model are as follows:
[0014] The reaction liquid is delivered to the ejector via a jet pump. When the switching assembly blocks the first outlet, the ejector delivers the reaction liquid to the second reaction tank. Simultaneously, the valve at the second inlet opens, allowing chlorine gas to flow into the second reaction tank, where it can fully react with the reaction liquid. Subsequently, when the switching assembly switches to block the second outlet, the ejector delivers the reaction liquid to the first reaction tank, the valve at the second inlet closes, and the valve at the first inlet opens, allowing chlorine gas to flow into the first reaction tank, where it can fully react with the reaction liquid. By alternating the output of the first and second outlets and the alternating closing of the first and second inlets, sufficient time is allowed for the chlorine to react chemically, ensuring a complete reaction between the chlorine and the reaction liquid. This eliminates the need for additional exhaust gas treatment equipment and improves the chlorine recovery rate.
[0015] 2. Both the first connecting pipe and the second connecting pipe are equipped with one-way valves, so that the reacted liquid flows to the storage tank and avoids backflow.
[0016] 3. The first and second reaction vessels are equipped with multiple contact fins, which allow the liquid to adhere to the surface of the multiple contact fins, making it easier for the liquid to come into contact with chlorine gas and undergo a chemical reaction. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 A schematic diagram of the overall structure of a chlorine recovery device provided in an embodiment of this utility model;
[0019] Figure 2 This is a schematic diagram of the overall structure of a chlorine recovery device provided in an embodiment of the present invention.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Conveying mechanism; 11. Jet pump; 12. Jet ejector; 13. Liquid inlet; 14. First liquid outlet; 15. Second liquid outlet; 2. Reaction mechanism; 21. First reaction tank; 22. Second reaction tank; 23. First air inlet; 24. Second air inlet; 25. First connecting pipe; 26. Second connecting pipe; 27. Pressure relief valve; 28. Support leg; 3. Liquid storage tank. Detailed Implementation
[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0026] Reference Figure 1 and Figure 2 As an embodiment of this utility model, a chlorine recovery device includes a conveying mechanism 1, a reaction mechanism 2, and a storage tank 3. The conveying mechanism 1 includes a jet pump 11 and an ejector 12. The jet pump 11 is connected to the ejector 12. The jet pump 11 is provided with an inlet 13, and the ejector 12 is provided with a first outlet 14 and a second outlet 15. The jet pump 11 is provided with a switching component, which can block the first outlet 14 or the second outlet 15. The reaction mechanism 2 includes a first reaction tank 21 and a second reaction tank 22. Two reaction tanks 22 are connected. The first reaction tank 21 is connected to the first liquid outlet 14, and the second reaction tank 22 is connected to the second liquid outlet 15. The first reaction tank 21 is provided with a first air inlet 23, and the second reaction tank 22 is provided with a second air inlet 24. Chlorine gas is introduced through both the first air inlet 23 and the second air inlet 24. Switch valves are provided for the first air inlet 23 and the second air inlet 24. The storage tank 3 is located on one side of the first reaction tank 21 and the second reaction tank 22. Both the first reaction tank 21 and the second reaction tank 22 are connected to the storage tank 3.
[0027] The reaction liquid is delivered to the ejector 12 via the jet pump 11. When the switching assembly blocks the first outlet 14, the ejector 12 jets the reaction liquid into the second reaction tank 22. Simultaneously, the valve of the second inlet 24 opens, allowing chlorine gas to flow into the second reaction tank 22, enabling it to fully react with the reaction liquid. Subsequently, when the switching assembly switches to block the second outlet 15, the ejector 12 jets the reaction liquid into the first reaction tank 21. The valve of the second inlet 24 closes, and the valve of the first inlet 23 opens, allowing chlorine gas to flow into the first reaction tank 21, enabling it to fully react with the reaction liquid. By alternating the output of the first outlet 14 and the second outlet 15, and alternating the closing of the first inlet 23 and the second inlet 24, sufficient time is allowed for the chemical reaction of the chlorine, ensuring a complete reaction between the chlorine and the reaction liquid. This eliminates the need for additional exhaust gas treatment equipment and improves the chlorine recovery rate.
[0028] Specifically, the switching component is a solenoid valve, which is connected to a relay. The relay controls the switching of the solenoid valve. The switching valves of the first air inlet 23 and the second air inlet 24 are both electrically connected to the relay. When the solenoid valve blocks the first liquid outlet 14 and opens the second liquid outlet 15, the switching valve of the second air inlet 24 opens, and the switching valve of the first air inlet 23 closes. Chlorine gas flows through the second reaction tank 22. Simultaneously, under the action of the ejector 12, the reaction liquid is sprayed from the second liquid outlet 15, forming a large number of small droplets, which increases the contact area between the chlorine gas and the reaction liquid, allowing the chlorine gas to fully absorb the reaction. Afterward, the solenoid valve switches to blocking the second liquid outlet 15 and opening the first liquid outlet 14. The switching valve of the second air inlet 24 closes, and the switching valve of the first air inlet 23 opens. The chlorine gas can then fully react with the reaction liquid in the first reaction tank 21.
[0029] Furthermore, the first reaction vessel 21 and the second reaction vessel 22 are equipped with multiple contact fins. The liquid can adhere to the surface of the multiple contact fins, and the liquid plays a retention role, prolonging the contact time between the liquid and chlorine gas, so that the chlorine gas can fully undergo a chemical reaction.
[0030] Furthermore, the bottom of the first reaction vessel 21 is connected to the storage tank 3 via a first connecting pipe 25, and the bottom of the second reaction vessel 22 is connected to the storage tank 3 via a second connecting pipe 26. The reaction liquid after absorbing chlorine gas can accumulate at the bottom of the first reaction vessel 21 and the second reaction vessel 22, and is guided into the storage tank 3 for storage through the flow-guiding effect of the first connecting pipe 25 and the second connecting pipe 26. Both the first connecting pipe 25 and the second connecting pipe 26 are equipped with one-way valves, ensuring that the reacted liquid flows to the storage tank 3 and preventing backflow. Both the first reaction vessel 21 and the second reaction vessel 22 are supported by supporting legs 28, facilitating the connection of the first connecting pipe 25 and the second connecting pipe 26.
[0031] Furthermore, both the first reaction vessel 21 and the second reaction vessel 22 are equipped with pressure relief valves 27. The embodiments described in this specific implementation are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A chlorine recovery device, characterized in that, include: The conveying mechanism (1) includes a jet pump (11) and a jet ejector (12). The jet pump (11) is connected to the jet ejector (12). The jet pump (11) is provided with an inlet (13). The jet ejector (12) is provided with a first outlet (14) and a second outlet (15). The jet pump (11) is provided with a switching component. The switching component can block the first outlet (14) or the second outlet (15). The reaction mechanism (2) includes a first reaction tank (21) and a second reaction tank (22). The first reaction tank (21) is connected to the first liquid outlet (14), and the second reaction tank (22) is connected to the second liquid outlet (15). The first reaction tank (21) is provided with a first air inlet (23), and the second reaction tank (22) is provided with a second air inlet (24). Both the first air inlet (23) and the second air inlet (24) are supplied with chlorine gas. The first air inlet (23) and the second air inlet (24) are provided with switch valves. A storage tank (3) is located on one side of the first reaction tank (21) and the second reaction tank (22), and both the first reaction tank (21) and the second reaction tank (22) are connected to the storage tank (3).
2. The chlorine recovery device as described in claim 1, characterized in that, The bottom of the first reaction vessel (21) is connected to the storage tank (3) through the first connecting pipe (25), and the bottom of the second reaction vessel (22) is connected to the storage tank (3) through the second connecting pipe (26).
3. The chlorine recovery device as described in claim 2, characterized in that, Both the first connecting pipe (25) and the second connecting pipe (26) are equipped with one-way valves.
4. The chlorine recovery device as described in claim 1, characterized in that, The switching component is a solenoid valve.
5. The chlorine recovery device as described in claim 1, characterized in that, The first reaction vessel (21) and the second reaction vessel (22) are provided with multiple contact fins, and liquid can adhere to the surface of the multiple contact fins.
6. The chlorine recovery device as described in claim 1, characterized in that, Both the first reaction vessel (21) and the second reaction vessel (22) are equipped with pressure relief valves (27).
7. The chlorine recovery device as described in claim 1, characterized in that, Both the first reaction vessel (21) and the second reaction vessel (22) are supported by support legs (28).