Copper removal device in chemical cleaning process of seawater desalination heat exchange tube
By using a copper removal device during the chemical cleaning of seawater desalination heat exchange tubes, the problem of copper layer being eroded during the cleaning process is solved, and efficient copper removal effect is achieved, environmental pollution is avoided, and the risk of secondary pollution is reduced.
Patent Information
- Application Number
- CN202420658524.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-01
AI Technical Summary
During the chemical cleaning of seawater desalination heat exchange tubes, the copper layer is easily eroded by the cleaning liquid, causing copper ions to dissolve, affecting the cleaning effect and possibly causing pollution to the environment. The traditional method is to add corrosion inhibitor to the cleaning liquid, but the amount of it is difficult to control and long-term use can easily cause secondary contamination to the heat exchange tube.
A copper removal device is designed, including a reaction chamber, an adsorption layer and a heating mechanism. An adsorption layer for chemical reaction with copper ions is provided in the reaction chamber, and a heating mechanism is provided to increase the temperature of the reaction chamber and thereby improve the copper removal efficiency.
The copper removal efficiency is improved through water bath heating, reduces corrosion on the copper layer, avoids environmental pollution, and simplifies the use of corrosion inhibitors, reducing the risk of secondary pollution.
Smart Images
Figure CN222579065U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchange tubes, in particular to a copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes. Background Art
[0002] The heat exchange tube is one of the components of the heat exchanger. It is placed inside the cylinder and is used for heat exchange between two media. It has high thermal conductivity and good isothermal properties. It is a device that can quickly transfer heat energy from one point to another with almost no heat loss. Therefore, it is called a heat transfer superconductor. Its thermal conductivity is thousands of times that of copper.
[0003] With the development of seawater desalination technology, the cleaning and maintenance technology of heat exchange tubes, as one of the key components of seawater desalination, has also received increasing attention. Currently, the commonly used cleaning methods include physical cleaning and chemical cleaning. Among them, chemical cleaning is widely used due to its high efficiency and thorough cleaning effect. However, during the chemical cleaning process, the copper layer on the inner wall of the heat exchange tube is easily corroded by the cleaning liquid, resulting in the dissolution of copper ions, which not only affects the cleaning effect but also may cause environmental pollution. The traditional solution is to add a certain amount of corrosion inhibitor to the cleaning liquid to reduce the corrosion of the copper layer. However, the effect of this method is not ideal, the amount of corrosion inhibitor added is difficult to control, and long-term use is likely to cause secondary pollution to the heat exchange tube. Utility Model Content
[0004] In view of the shortcomings of the prior art, the utility model provides a copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes, which has the advantage of high efficiency in cleaning the heat exchange tubes and solves the problem that the traditional solution is to add a certain amount of corrosion inhibitor to the cleaning liquid to reduce the erosion of the copper layer, but the amount of corrosion inhibitor added is difficult to control, and long-term use is likely to cause secondary pollution to the heat exchange tubes.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a copper removal device in the chemical cleaning process of a seawater desalination heat exchange tube, comprising a reaction chamber, a liquid inlet is provided on the upper surface of the reaction chamber, an adsorption layer for chemically reacting with copper ions is provided in the inner cavity of the reaction chamber, a heating mechanism for increasing the inner cavity temperature of the reaction chamber is provided on the outer surface of the reaction chamber, fixed grooves are provided on both sides of the adsorption layer, and a dismantling mechanism for facilitating the dismantling of the adsorption layer is provided on both the left and right ends of the opposite side of the top wall and the inner bottom wall of the fixed groove;
[0006] The heating mechanism includes a fixed box, a booster pump, a water inlet pipe, a water outlet pipe, an insulation layer, a drain pipe and a first switch valve. The fixed box is arranged on the outer surface of the reaction chamber, the booster pump is fixed to the top of the left side of the fixed box, one end of the water inlet pipe is connected to the water inlet end of the booster pump, one end of the water outlet pipe is connected to the water outlet end of the booster pump, the insulation layer is fixed to the inner wall of the fixed box, one end of the drain pipe is connected to the fixed box, the other end of the drain pipe passes through the right side wall of the inner cavity of the fixed box and extends to the right side of the fixed box, and the first switch valve is fixed to the side of the drain pipe away from the fixed box.
[0007] The beneficial effect of adopting the above further solution is that when removing copper from the reaction chamber, the reaction chamber can be heated by a water bath, so that the temperature in the reaction chamber is increased, thereby improving the efficiency of copper removal.
[0008] Furthermore, a liquid outlet pipe is connected to the middle of the lower surface of the reaction chamber, and the lower end of the liquid outlet pipe passes through the fixed box and extends to the lower side of the fixed box and is fixed with a second switch valve.
[0009] The beneficial effect of adopting the above further solution is that the cleaning liquid after copper removal can be discharged from the reaction chamber.
[0010] Furthermore, no less than two support seats are fixed to the lower surface of the fixed box, and the fixed box is in the shape of a cylinder with a hollow interior and a partially missing upper surface.
[0011] The beneficial effect of adopting the above further solution is that the provided support base can be used to stably support the fixed box.
[0012] Furthermore, the other end of the water outlet pipe is fixed to the upper surface of the fixed box, and a thermometer is fixed to the right end of the upper surface of the fixed box.
[0013] The beneficial effect of adopting the above further solution is that the staff can check the temperature of the hot water in real time through the thermometer provided.
[0014] Furthermore, the disassembly and replacement mechanism includes a driving member and four limiting rods, the driving member is arranged on the inner wall of the reaction chamber and is used to drive the movement of the limiting rods, and the four limiting rods are arranged in the inner cavity of the fixing groove and are used to fix the adsorption layer.
[0015] The beneficial effects of adopting the above further scheme are: removing restrictions on the adsorption layer, facilitating replacement of the adsorption layer, and improving the copper removal effect.
[0016] Furthermore, the driving member includes a bidirectional screw, a driving bevel gear, a motor, a driven bevel gear, two screw sleeves and a connecting plate. The left and right side walls of the inner cavity of the reaction chamber are both provided with cavities. The upper and lower ends of the bidirectional screw are rotatably connected to the opposite sides of the front and rear side walls of the inner cavity of the cavity through bearings. The driven bevel gear is fixed to the outer surface of the bidirectional screw. The driving bevel gear is meshed with the driven bevel gear. The motor is fixed to the inner top wall of the cavity. The output shaft of the motor is fixed to the driving bevel gear. The screw sleeve is threadedly connected to the bidirectional screw. The right side of the screw sleeve is fixed to the connecting plate. The right side of the connecting plate passes through the inner wall of the reaction chamber and extends to the inner cavity of the fixing groove.
[0017] The beneficial effect of adopting the above further solution is that it can drive the movement of the limiting rod, thereby fixing the adsorption layer.
[0018] Furthermore, the two screw sleeves are symmetrically distributed at the upper and lower ends of the transverse center axis of the bidirectional screw, and one side of the limit rod is fixed to the connecting plate.
[0019] The beneficial effect of adopting the above further solution is that the limit rod can be driven to move by the movement of the connecting plate.
[0020] Furthermore, two slots are provided on opposite sides of the front and rear side walls of the inner cavity of the fixing groove, and the diameter of the inner cavity of the slots is matched with the outer diameter of the limiting rod.
[0021] The beneficial effect of adopting the above further solution is that it is easy to move the limiting rod into the inner cavity of the slot.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] 1. The copper removal device in the process of chemical cleaning of seawater desalination heat exchange tubes can connect one end of the water inlet pipe with the hot water source, cooperate with the booster pump and the water outlet pipe to introduce hot water into the inner cavity of the fixed box, so that when the reaction chamber is decoppered, the reaction chamber can be heated by water bath, so that the temperature in the reaction chamber is increased, thereby improving the efficiency of copper removal.
[0024] 2. The copper removal device in the process of chemical cleaning of the desalination heat exchange tube drives the active bevel gear to rotate through the rotation of the output shaft of the motor, which can drive the driven bevel gear to rotate, so that the bidirectional screw rotates, so that the two screw sleeves drive the two connecting plates to move, thereby driving the limit rod to move out of the inner cavity of the slot, which can release the restriction on the adsorption layer and facilitate the replacement of the adsorption layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the structure of the utility model;
[0026] Figure 2 This is a schematic diagram of the heating mechanism structure of the utility model;
[0027] Figure 3 This is a schematic diagram of the top view of the dismantling and replacing mechanism of the utility model;
[0028] Figure 4 It is a partial structural diagram of the driving component of the utility model.
[0029] In the figure: 1. reaction chamber; 2. liquid inlet; 3. adsorption layer; 4. heating mechanism; 401. fixed box; 402. booster pump; 403. water inlet pipe; 404. water outlet pipe; 405. insulation layer; 406. drain pipe; 407. first switch valve; 5. fixed groove; 6. disassembly mechanism; 61. driving part; 611. bidirectional screw; 612. driving bevel gear; 613. motor; 614. driven bevel gear; 615. screw sleeve; 616. connecting plate; 62. limit rod. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0031] See also Figure 1 The copper removal device in the chemical cleaning process of the seawater desalination heat exchange tube in this embodiment includes a reaction chamber 1, a liquid inlet 2 is provided on the upper surface of the reaction chamber 1, an adsorption layer 3 for chemically reacting with copper ions is provided in the inner cavity of the reaction chamber 1, a heating mechanism 4 for increasing the inner cavity temperature of the reaction chamber 1 is provided on the outer surface of the reaction chamber 1, fixed grooves 5 are provided on the left and right sides of the adsorption layer 3, and a disassembly mechanism 6 for facilitating the disassembly of the adsorption layer 3 is provided on the left and right ends of the inner top wall and the inner bottom wall of the fixed groove 5.
[0032] It should be noted that the adsorption layer 3 is an activated carbon layer, and the functional groups on the pore wall of the activated carbon layer interact with the copper ions, such as the hydroxyl groups (OH) on the oxide surface react with the copper oxide (OH) in the copper ions to form an oxide-copper complex.
[0033] See also Figure 2In order to improve the efficiency of copper removal, the heating mechanism 4 in this embodiment includes a fixed box 401, a booster pump 402, a water inlet pipe 403, a water outlet pipe 404, an insulation layer 405, a drain pipe 406 and a first switch valve 407. The fixed box 401 is arranged on the outer surface of the reaction chamber 1, the booster pump 402 is fixed to the top of the left side of the fixed box 401, one end of the water inlet pipe 403 is connected to the water inlet end of the booster pump 402, one end of the water outlet pipe 404 is connected to the water outlet end of the booster pump 402, and one end of the water inlet pipe 403 is connected to the hot water source. The booster pump 402 is connected and then started. The booster pump 402 draws hot water into the inner cavity of the water outlet pipe 404 through the water inlet pipe 403. The insulation layer 405 is fixed to the inner wall of the fixed box 401. The setting of the insulation layer 405 can prevent the temperature of the hot water from decreasing rapidly. One end of the drain pipe 406 is connected to the fixed box 401, and the other end of the drain pipe 406 passes through the right side wall of the inner cavity of the fixed box 401 and extends to the right side of the fixed box 401. The first switch valve 407 is fixed to the side of the drain pipe 406 away from the fixed box 401.
[0034] Among them, the middle part of the lower surface of the reaction chamber 1 is connected with a liquid outlet pipe, the lower end of the liquid outlet pipe passes through the fixed box 401 and extends to the lower side of the fixed box 401 and is fixed with a second switch valve, and no less than two support seats are fixed on the lower surface of the fixed box 401, and the shape of the fixed box 401 is a cylinder with a hollow interior and a partially missing upper surface.
[0035] In addition, the other end of the water outlet pipe 404 is fixed to the upper surface of the fixed box 401, and then enters the inner cavity of the fixed box 401 through the guidance of the water outlet pipe 404. The reaction chamber 1 located in the inner cavity of the fixed box 401 is heated by water bath using hot water, which can improve the effect and efficiency of copper removal. A thermometer is fixed to the right end of the upper surface of the fixed box 401.
[0036] It is understandable that the staff can check the temperature of the hot water in real time through a thermometer. When the temperature is low, the hot water in the inner cavity of the fixed box 401 can be discharged through the drain pipe 406 and the first switch valve 407, and hot water can be pumped in again.
[0037] See also Figure 3-4 In order to facilitate the replacement of the adsorption layer 3, the disassembly mechanism 6 in this embodiment includes a driving member 61 and four limiting rods 62. The driving member 61 is arranged on the inner wall of the reaction chamber 1 and is used to drive the movement of the limiting rods 62. The four limiting rods 62 are arranged in the inner cavity of the fixing groove 5 and are used to fix the adsorption layer 3.
[0038] There are two slots on opposite sides of the front and rear side walls of the inner cavity of the fixing groove 5 , and the diameter of the inner cavity of the slots is matched with the outer diameter of the limiting rod 62 .
[0039] In this embodiment, the driving member 61 includes a bidirectional screw 611, an active bevel gear 612, a motor 613, a driven bevel gear 614, two screw sleeves 615 and a connecting plate 616. The left and right side walls of the inner cavity of the reaction chamber 1 are provided with cavities. The upper and lower ends of the bidirectional screw 611 are respectively connected to the opposite sides of the inner cavity front and rear side walls of the cavity through bearings. The driven bevel gear 614 is fixed to the outer surface of the bidirectional screw 611, the active bevel gear 612 is meshed with the driven bevel gear 614, and the motor 613 is connected to the inner top wall of the cavity. The output shaft of the motor 613 is fixed to the active bevel gear 612, and the motor 613 is started. The output shaft of the motor 613 rotates, thereby driving the active bevel gear 612 to rotate. The active bevel gear 612 and the driven bevel gear 614 are meshed and connected, so that the driven bevel gear 614 can be driven to rotate, so that the bidirectional screw 611 rotates. The screw sleeve 615 is threadedly connected to the bidirectional screw 611, and the right side of the screw sleeve 615 is fixed to the connecting plate 616. The right side of the connecting plate 616 passes through the inner wall of the reaction chamber 1 and extends to the inner cavity of the fixed groove 5.
[0040] Among them, the two screw sleeves 615 are symmetrically distributed at the upper and lower ends of the transverse central axis of the bidirectional screw 611, and one side of the limiting rod 62 is fixed to the connecting plate 616. The rotation of the bidirectional screw 611 makes the two screw sleeves 615 move relative to each other, and then drives the two connecting plates 616 to move relative to each other, thereby driving the limiting rod 62 to move out of the inner cavity of the slot, and then the adsorption layer 3 can be taken out.
[0041] It should be noted that a box cover is hinged on the upper surface of the reaction chamber 1, and the adsorption layer 3 can be taken out by opening the box cover. The liquid inlet 2 is connected to the box cover. Slide bars are fixed to the inner walls on the opposite sides of the two cavities. A slide rod is fixed to the left side of the screw sleeve 615. The slide rod makes horizontal linear motion in the inner cavity of the slide bar, which can limit the movement of the screw sleeve 615.
[0042] The working principle of the above embodiment is:
[0043] (1) When using the copper removal device, first connect one end of the water inlet pipe 403 to the hot water source, then start the booster pump 402, the booster pump 402 pumps the hot water into the inner cavity of the water outlet pipe 404 through the water inlet pipe 403, and then enters the inner cavity of the fixed box 401 through the guidance of the water outlet pipe 404. At this time, keep the first switch valve 407 closed, and use hot water to heat the reaction chamber 1 located in the inner cavity of the fixed box 401 in a water bath, which can improve the effect and efficiency of copper removal. The temperature of the hot water is not easy to drop quickly by setting the insulation layer 405. The staff can check the temperature of the hot water in real time through the thermometer. When the temperature is low, the hot water in the inner cavity of the fixed box 401 can be discharged through the drain pipe 406 and the first switch valve 407, and the hot water can be pumped in again.
[0044] (2) In order to facilitate the replacement of the adsorption layer 3, first start the motor 613, the output shaft of the motor 613 rotates, and then drives the active bevel gear 612 to rotate. Through the meshing connection between the active bevel gear 612 and the driven bevel gear 614, the driven bevel gear 614 can be driven to rotate, and then the bidirectional screw 611 is rotated, so that the two screw sleeves 615 make relative movement, and then drive the two connecting plates 616 to make relative movement, thereby driving the limit rod 62 to move out of the inner cavity of the slot, and then the adsorption layer 3 can be taken out.
Claims
1. A copper removal device for a seawater desalination heat exchange tube chemical cleaning process, comprising a reaction chamber (1), characterized in that: The upper surface of the reaction chamber (1) is provided with a liquid inlet (2); the inner cavity of the reaction chamber (1) is provided with an adsorption layer (3) for chemically reacting with copper ions; the outer surface of the reaction chamber (1) is provided with a heating mechanism (4) for increasing the inner cavity temperature of the reaction chamber (1); the left and right sides of the adsorption layer (3) are provided with fixing grooves (5); and the left and right ends of the inner top wall and the inner bottom wall of the fixing groove (5) are provided with a dismantling mechanism (6) for facilitating the dismantling of the adsorption layer (3); The heating mechanism (4) comprises a fixed box (401), a booster pump (402), a water inlet pipe (403), a water outlet pipe (404), a heat-insulating layer (405), a drain pipe (406) and a first switch valve (407); the fixed box (401) is arranged on the outer surface of the reaction chamber (1); the booster pump (402) is fixed to the top of the left side of the fixed box (401); one end of the water inlet pipe (403) is connected to the water inlet end of the booster pump (402); and the outlet pipe (404) is connected to the water outlet end of the booster pump (402). One end of the water pipe (404) is connected to the water outlet end of the booster pump (402); the thermal insulation layer (405) is fixed to the inner wall of the fixed box (401); one end of the drainage pipe (406) is connected to the fixed box (401); the other end of the drainage pipe (406) passes through the right side wall of the inner cavity of the fixed box (401) and extends to the right side of the fixed box (401); and the first switch valve (407) is fixed to a side of the drainage pipe (406) away from the fixed box (401).
2. The copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes according to claim 1 is characterized in that: The middle of the lower surface of the reaction chamber (1) is connected to a liquid outlet pipe, the lower end of the liquid outlet pipe passes through the fixed box (401) and extends to the lower side of the fixed box (401) and is fixed with a second switch valve.
3. The copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes according to claim 1, characterized in that: No less than two support seats are fixed on the lower surface of the fixed box (401), and the fixed box (401) is in the shape of a cylinder with a hollow interior and a partially missing upper surface.
4. The copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes according to claim 1, characterized in that: The other end of the water outlet pipe (404) is fixed to the upper surface of the fixed box (401), and a thermometer is fixed to the right end of the upper surface of the fixed box (401).
5. The copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes according to claim 1, characterized in that: The disassembly and replacement mechanism (6) comprises a driving member (61) and four limiting rods (62); the driving member (61) is arranged on the inner wall of the reaction chamber (1) and is used to drive the movement of the limiting rods (62); the four limiting rods (62) are arranged in the inner cavity of the fixing groove (5) and are used to fix the adsorption layer (3).
6. The copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes according to claim 5, characterized in that: The driving member (61) comprises a bidirectional screw (611), a driving bevel gear (612), a motor (613), a driven bevel gear (614), two screw sleeves (615) and a connecting plate (616). The left and right side walls of the inner cavity of the reaction chamber (1) are both provided with cavities. The upper and lower ends of the bidirectional screw (611) are respectively rotatably connected to the opposite sides of the inner cavity front and rear side walls of the cavity through bearings. The driven bevel gear (614) is fixed to the outer side of the bidirectional screw (611). The driving bevel gear (612) is meshedly connected with the driven bevel gear (614), the motor (613) is fixed to the inner top wall of the cavity, the output shaft of the motor (613) is fixed to the driving bevel gear (612), the screw sleeve (615) is threadedly connected to the bidirectional screw rod (611), the right side of the screw sleeve (615) is fixed to the connecting plate (616), and the right side of the connecting plate (616) penetrates the inner wall of the reaction chamber (1) and extends to the inner cavity of the fixing groove (5).
7. The copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes according to claim 6, characterized in that: The two screw sleeves (615) are symmetrically distributed at the upper and lower ends of the transverse center axis of the bidirectional screw (611), and one side of the limit rod (62) is fixed to the connecting plate (616).
8. The copper removal device in the chemical cleaning process of seawater desalination heat exchange tubes according to claim 5, characterized in that: Two slots are provided on opposite sides of the front and rear side walls of the inner cavity of the fixing groove (5), and the diameter of the inner cavity of the slots is matched to the outer diameter of the limiting rod (62).