Electroplating degreasing tank water supplement preheating energy-saving device

Abstract

The application relates to the technical field of electroplating tank structures, in particular to an electroplating degreasing tank water supplementing and preheating energy-saving device. The device comprises a horizontal bottom plate, a water supplementing tank vertically arranged on the upper surface of the bottom plate, a water pump arranged between the upper surface of the bottom plate and the water supplementing tank, a degreasing tank main body arranged on the side, away from the water supplementing tank, of the water pump, two partition plates arranged in the water supplementing tank, two heating cavities and one water storage cavity formed in the water supplementing tank by the two partition plates, the two heating cavities arranged on the two sides of the water storage cavity, and the water pump communicated with the water storage cavity through a connecting pipe. The water pump can pump water into the degreasing tank main body, thereby saving the heat energy used for preheating the degreasing tank.

Description

Technical Field

[0001] This application relates to the field of electroplating tank structure technology, and in particular to an energy-saving device for water replenishment and preheating of electroplating degreasing tank. Background Technology

[0002] Currently, degreasing before electroplating is a key basic process to ensure the quality of the plating layer. Its core purpose is to remove oil, grease and other organic contaminants from the surface of the workpiece to improve the quality of electroplating. In order to achieve a good degreasing effect, the water in the degreasing tank needs to be heated to a specified temperature so that the activity of the degreasing agent is higher, thereby obtaining a good degreasing effect. The commonly used heating method is heating with high-temperature steam.

[0003] The existing technical solutions mentioned above have the following drawbacks: heating with steam requires a large amount of coal, electricity and other resources, and there is waste in the steam transportation process, resulting in low utilization. Waste heat generated by other processes during electroplating is directly discharged, wasting thermal energy. Utility Model Content

[0004] In order to save the heat energy used in the preheating of the degreasing tank, this application provides an energy-saving device for preheating water in the electroplating degreasing tank.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0006] An energy-saving device for preheating and replenishing water in an electroplating degreasing tank includes a horizontally arranged base plate, a water replenishment tank vertically arranged on the upper surface of the base plate, a water pump spaced apart from the water replenishment tank on the upper surface of the base plate, a degreasing tank body arranged on the side of the water pump away from the water replenishment tank, two partitions spaced apart inside the water replenishment tank, the two partitions dividing the internal space of the water replenishment tank into two heating chambers and one water storage chamber, the two heating chambers being arranged on both sides of the water storage chamber, the water pump being connected to the water storage chamber through a connecting pipe, and the water pump being able to pump water into the degreasing tank body.

[0007] By adopting the above technical solution, a base plate, a water supply tank, a water pump, and a degreasing tank body are set up. The water supply tank is divided into two heating chambers and a water storage chamber by two partitions. The heating chambers are located on both sides of the water storage chamber. The water pump is connected to the water storage chamber through a connecting pipe. The heat from the high-temperature wastewater generated in other electroplating processes flows through the heating chamber and is conducted through the partitions to preheat the water in the water storage chamber, so that the water supplied to the degreasing tank body has a certain temperature. Compared with preheating through heat exchange using high-temperature steam, this method can save the heat energy required for preheating the degreasing tank and realize the recycling of waste heat.

[0008] Optionally, the upper part of the heating chamber near the water pump is separated from the water supply tank and the partition by two mutually perpendicular mounting plates to form a filter chamber. A fixing groove is provided on the outer side wall of the water supply tank opposite to the filter chamber. The bottom of the fixing groove is provided with a mounting square hole communicating with the filter chamber. Mounting grooves are provided on the upper wall of the water supply tank and on the surface of the mounting plate opposite to the upper wall of the water supply tank in the filter chamber. The mounting groove has an opening at the bottom of the fixing groove. A filter plate is provided in the filter chamber. The filter plate is adapted to the mounting groove and is inserted into the mounting groove.

[0009] By adopting the above technical solution, and by setting up an installation plate and a filter plate, the installation plate separates the filter chamber from the water supply tank and the partition. A fixing groove is opened on the outer wall of the water supply tank at the position of the filter chamber. A square hole for installation is opened at the bottom of the fixing groove, which communicates with the filter chamber. An installation groove is opened on the upper wall of the water supply tank inside the filter chamber and on the surface of the installation plate opposite to the installation groove. The filter plate is adapted to the installation groove and inserted into it. This can filter the high-temperature wastewater entering the heating chamber, intercept impurities in the wastewater, reduce the accumulation of impurities in the heating chamber, and reduce the possibility of reducing the preheating effect and service life of the device due to the accumulation of impurities.

[0010] Optionally, a rotating plate is rotatably disposed in the fixing groove to seal the mounting square hole, and the surface of the rotating plate is in contact with the bottom of the fixing groove to seal the mounting square hole.

[0011] By adopting the above technical solution and setting a rotating plate, the installation square hole can be sealed after the filter plate is installed to fix the filter plate. When the surface of the rotating plate is in contact with the bottom of the fixing groove, the installation square hole can be sealed to prevent high-temperature wastewater from leaking at the connection between the filter chamber and the outside world, ensuring that the wastewater is filtered normally in the filter chamber and maintaining the sealing and normal operation of the device.

[0012] Optionally, a fixing plate is slidably disposed in the fixing groove. The two side walls of the fixing groove are provided with strip-shaped sliding grooves. The side wall of the fixing plate is provided with a sliding member adapted to the sliding groove. The sliding member is slidably disposed in the sliding groove. The side walls of the fixing plate and the rotating plate opposite each other are provided with mutually adapted limiting grooves. The limiting groove on the fixing plate is close to the bottom of the fixing groove. The side walls of the fixing plate and the rotating plate with limiting grooves can be inserted into each other.

[0013] By adopting the above technical solution, and by setting a fixed plate and a sliding component, the fixed plate and the rotating plate have mutually matching limiting grooves on their opposite side walls. After the rotating plate closes the installation square hole, the limiting grooves can be inserted into each other by sliding the fixed plate, thereby fixing the position of the rotating plate and preventing the rotating plate from loosening or rotating during the operation of the device. At the same time, it is convenient to disassemble the filter plate by sliding the fixed plate and rotating the rotating plate when the filter plate needs to be replaced, which is convenient for maintenance.

[0014] Optionally, multiple heat sinks are provided on the opposing surfaces of the two partitions. The multiple heat sinks are evenly spaced along the length of the partitions, and the surfaces of the heat sinks are perpendicular to the surfaces of the partitions.

[0015] By adopting the above technical solution and setting heat sinks, the contact area between the partition and the water in the water storage chamber can be increased, the heat exchange efficiency between the heating chamber and the water storage chamber can be improved, the water in the water storage chamber can absorb the heat of the wastewater in the heating chamber more quickly, improve the preheating effect, and further save the heat energy consumption of the degreasing tank preheating.

[0016] Optionally, the upper outer wall of the water replenishment tank is provided with a water inlet that communicates with the water storage chamber.

[0017] By adopting the above technical solution and opening a water inlet, industrial water can be conveniently added to the water storage chamber, ensuring that the water storage chamber is replenished in time when the water level drops, maintaining the normal water replenishment function of the device, and ensuring that the degreasing tank body can obtain sufficient water replenishment when needed.

[0018] Optionally, a Y-shaped preheating water inlet pipe is provided above the water pump outside the water replenishment tank. The two parallel ends of the preheating water inlet pipe are respectively connected to the filter chamber. A preheating water outlet is provided at the lower part of the water replenishment tank away from the water pump, which is connected to the interior of the heating chamber.

[0019] By adopting the above technical solution, a flow channel for high-temperature wastewater can be formed by setting up a preheating inlet pipe and opening a preheating outlet. The preheating inlet pipe allows the high-temperature wastewater to flow evenly into the two heating chambers. When the wastewater flows in the heating chamber, it exchanges heat with the water in the storage chamber through the baffle and heat sink. Finally, it is discharged from the preheating outlet, thus realizing the preheating of the water in the storage chamber, effectively utilizing the heat of the wastewater and reducing the waste of heat energy.

[0020] Optionally, a liquid level sensor is installed in both the water storage chamber and the degreasing tank body, and a PLC processor is installed on the outer wall of the water replenishment tank. The PLC processor is electrically connected to both the liquid level sensor and the water pump.

[0021] By adopting the above technical solution, the liquid level sensor and PLC processor can monitor the liquid level in the water storage chamber and the degreasing tank in real time. When the liquid level in the degreasing tank is lower than the set threshold, the PLC processor controls the water pump to start and replenish water. When the liquid level in the water storage chamber is insufficient, a water replenishment signal is sent to realize automatic water replenishment control, reduce manual operation, improve the convenience and automation of the device, and at the same time ensure that the water replenishment process is accurate and timely, avoiding the impact of abnormal liquid level on the operation of the degreasing tank.

[0022] In summary, this application has the following technical effects:

[0023] 1. By setting up a base plate, a water supply tank, a water pump, and the main body of the degreasing tank, and two partitions dividing the space in the water supply tank into two heating chambers and one water storage chamber, with the heating chambers located on both sides of the water storage chamber, and the water pump connected to the water storage chamber through a connecting pipe, the heat from the high-temperature wastewater generated in other electroplating processes flowing through the heating chamber is used to preheat the water in the water storage chamber through heat conduction by the partitions, so that the water supplied to the main body of the degreasing tank has a certain temperature. Compared with preheating through heat exchange using high-temperature steam, this method can save the heat energy required for preheating the degreasing tank and realize the recycling of waste heat.

[0024] 2. By setting up an installation plate and a filter plate, the installation plate separates the filter chamber from the water supply tank and the partition. A fixing groove is opened on the outer wall of the water supply tank at the position of the filter chamber. A square hole for installation is opened at the bottom of the fixing groove and communicates with the filter chamber. An installation groove is opened on the upper wall of the water supply tank inside the filter chamber and on the surface of the installation plate. The filter plate is adapted to the installation groove and inserted into it. It can filter the high-temperature wastewater entering the heating chamber, intercept impurities in the wastewater, reduce the accumulation of impurities in the heating chamber, and reduce the possibility of reducing the preheating effect and service life of the device due to the accumulation of impurities.

[0025] 3. By installing heat sinks, the contact area between the partition and the water in the water storage chamber can be increased, improving the heat exchange efficiency between the heating chamber and the water storage chamber. This allows the water in the water storage chamber to absorb the heat from the wastewater in the heating chamber more quickly, improving the preheating effect and further saving the heat energy consumption of the degreasing tank preheating. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the object of this application;

[0027] Figure 2 This is another perspective of the external structure of this application;

[0028] Figure 3 This is a structural diagram of the internal structure of the water replenishment tank in this application;

[0029] Figure 4 yes Figure 2 Enlarged view of point A.

[0030] Explanation of reference numerals in the attached drawings: 1. Degreasing tank body; 2. Water replenishment component; 21. Base plate; 22. Water replenishment tank; 221. Water storage chamber; 222. Heating chamber; 223. Water replenishment inlet; 23. Partition plate; 231. Heat sink; 24. Water pump; 241. Connecting pipe; 25. Water replenishment outlet pipe; 26. Liquid level sensor; 3. Preheating energy-saving component; 31. Preheating inlet pipe; 32. Mounting plate; 321. Filter chamber; 322. Fixing groove; 323. Mounting square hole; 324. Mounting groove; 325. Sliding groove; 326. Connecting hole; 33. Filter plate; 34. Rotating plate; 35. Fixing plate; 351. Sliding part; 36. Limiting groove; 37. Preheating outlet; 38. PLC processor. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses an energy-saving device for preheating and replenishing water in an electroplating degreasing tank, referring to... Figure 1 The water replenishment and preheating energy-saving device includes a water replenishment component 2 for replenishing water into the degreasing tank body 1 and a preheating energy-saving component 3 installed on the water replenishment component 2 for preheating. The water replenishment component 2 can replenish water at a specific temperature into the degreasing tank body 1 when the water level in the degreasing tank body 1 drops to a certain level, thereby improving the degreasing efficiency. The preheating energy-saving component 3 can use the high-temperature wastewater generated in other stages of the electroplating process to preheat the water replenishment, thereby realizing the recycling of waste heat resources. Compared with traditional steam heating, it can significantly reduce heat energy consumption and reduce wastewater heat discharge.

[0033] Combination Figure 1 and Figure 3 The water replenishment assembly 2 includes a horizontally positioned base plate 21 and a vertically positioned water replenishment tank 22 on the upper surface of the base plate 21. The water replenishment tank 22 is located at one end of the upper surface of the base plate 21. Inside the water replenishment tank 22, two vertically positioned partitions 23 are arranged. The surfaces of the two partitions 23 are parallel to each other and spaced apart. The two partitions 23 divide the internal space of the water replenishment tank 22 into two identical heating chambers 222 and a water storage chamber 221. The two heating chambers 222 are located on both sides of the water storage chamber 221. The side walls of the partitions 23 are fixed to the inner wall of the water replenishment tank 22, and the length direction of the partitions 23 is parallel to the length direction of the water replenishment tank 22. The surface of the partitions 23 is parallel to the side wall of the base plate 21. A water replenishment inlet 223 is provided on the upper inner wall of the water replenishment tank 22, which connects the outside of the water replenishment tank 22 and the water storage chamber 221, facilitating the replenishment of industrial water into the water storage chamber 221.

[0034] Combination Figure 1 and Figure 3 Multiple heat sinks 231 are spaced apart on the opposing surfaces of the two partition plates 23. The heat sinks 231 are strip-shaped metal plates with their length direction perpendicular to the length direction of the partition plate 23 and their surface perpendicular to the surface of the partition plate 23. The multiple heat sinks 231 are evenly spaced along the length direction of the partition plate 23. The heat sinks 231 can increase the contact area between the partition plate 23 and the industrial water in the water storage chamber 221, thereby improving the heat exchange efficiency.

[0035] Combination Figure 2 and Figure 3A water pump 24 is spaced apart from the water tank 22 on the upper surface of the base plate 21. The water pump 24 is connected to the water tank 22 via a connecting pipe 241. One end of the connecting pipe 241 is connected to the water storage chamber 221, and the other end is connected to the water pump 24. The connecting pipe 241 is fixed to the water tank 22 at the lower end of the side wall of the water tank 22. The water replenishment assembly 2 is located on one side of the degreasing tank body 1 and is spaced apart from the degreasing tank body 1. The water pump 24 enters the degreasing tank body 1 from the water tank 22 via a water replenishment outlet pipe 25. The water replenishment outlet pipe 25 is U-shaped, with one end located inside the degreasing tank body 1 and the other end connected to the water pump 24. Liquid level sensors 26 are installed on both the water storage chamber 221 and the inner side wall of the degreasing tank body 1.

[0036] Combination Figure 3 and Figure 4 Two preheating water inlet pipes 31 are installed on the upper part of the side body of the water supply tank 22. The preheating water inlet pipes 31 connect the outer surface of the water supply tank 22 and the side wall adjacent to the heating chamber 222 and the partition 23. The preheating water inlet pipes 31 are Y-shaped, consisting of four interconnected round pipes. The two ends of the preheating water inlet pipes 31 are connected to the two heating chambers 222 respectively. The preheating water inlet pipes 31 are located above the water pump 24. Two mounting plates 32 are installed in each of the two heating chambers 222. The surfaces of the two mounting plates 32 are perpendicular to each other. The side walls of the mounting plates 32 are fixed to the surface of the partition 23 and the inner side wall of the water supply tank 22 respectively. The two mounting plates 32 separate a square filter chamber 321 at the position of the water supply pipe in the heating chamber 222. The length of the filter chamber 321 is parallel to the length of the bottom plate 21.

[0037] Combination Figure 3 and Figure 4 A fixing groove 322 is provided at the position of the filter cavity 321 on the outer wall parallel to the surface of the water supply tank 22 and the partition plate 23. The fixing groove 322 is strip-shaped, and its length direction is parallel to the length direction of the filter cavity 321. The groove wall of the fixing groove 322 is located at the middle position between the inner wall and the outer wall of the filter cavity 321. A mounting square hole 323 is provided at the end of the bottom of the fixing groove 322 away from the preheating water inlet pipe 31. The mounting square hole 323 connects the filter cavity 321 and the bottom of the fixing groove 322. The length direction of the mounting square hole 323 is parallel to the length direction of the fixing groove 322. The opposite side walls of the mounting square hole 323 are flush with the upper inner wall of the water supply tank 22 and the surface of the mounting plate 32 opposite to the upper inner end of the water supply tank 22, respectively. The end wall of the mounting square hole 323 away from the water supply inlet pipe is flush with the surface of the mounting plate 32 away from the water supply inlet pipe.

[0038] Combination Figure 3 and Figure 4The upper wall of the water supply tank 22 inside the filter chamber 321 and the surface of the mounting plate 32 opposite to the upper wall of the water supply tank 22 are provided with mounting grooves 324. The mounting groove 324 has an opening at the bottom of the fixing groove 322. The filter plate 33 is provided inside the filter chamber 321. The filter plate 33 is a square plate with round holes on its surface. The filter plate 33 is adapted to the mounting groove 324, and the side wall of the filter plate 33 is detachably inserted into the mounting groove 324. The surface of the filter plate 33 is perpendicular to the length direction of the filter chamber 321. A circular connecting hole 326 is provided on the surface of the mounting plate 32 away from the preheating water inlet pipe 31. The connecting hole 326 connects the filter chamber 321 and the heating chamber 222. The high-temperature wastewater flowing in the preheating water inlet pipe 31 first enters the filter chamber 321. Since the high-temperature wastewater contains impurities, in order to reduce the accumulation of impurities in the heating chamber 222 and thus reduce the service life of the preheating energy-saving device, the high-temperature wastewater is filtered by the filter plate 33 in the filter chamber 321 and then enters the heating chamber 222 through the connecting hole 326 to preheat the industrial water in the water storage chamber 221.

[0039] Combination Figure 3 and Figure 4 A rotating plate 34 is rotatably installed in the fixed groove 322, and a fixed plate 35 is slidably installed. The rotating plate 34 is adapted to the mounting square hole 323. The rotating plate 34 can close the mounting square hole 323. When the plate surface of the rotating plate 34 is in contact with the bottom of the fixed groove 322, it can seal the mounting square hole 323, reducing the possibility of leakage at the mounting square hole 323 during the flow of high temperature wastewater. The side wall of the rotating plate 34 away from the preheating water inlet pipe 31 is hinged to the end wall of the fixed groove 322. The opposite side walls of the rotating plate 34 can be in contact with the two side walls of the fixed groove 322 respectively. When the rotating plate 34 closes the mounting square hole 323, the plate surface of the rotating plate 34 away from the bottom of the fixed groove 322 is flush with the outer wall of the water replenishment tank 22. The fixed plate 35 and the rotating plate 34 are slidably arranged at intervals. The two sides of the fixed groove 322 are provided with strip-shaped sliding grooves 325 near the preheating water inlet pipe 31. The length direction of the sliding groove 325 is parallel to the length direction of the fixed groove 322. The side wall opposite to the fixed plate 35 is provided with a sliding member 351 that is adapted to the sliding groove 325. The sliding member 351 is slidably arranged in the sliding groove 325. The sliding member 351 and the sliding groove 325 restrict the sliding trajectory of the fixed plate 35.

[0040] Combination Figure 3 and Figure 4When the rotating plate 34 closes the mounting square hole 323, the side walls of the rotating plate 34 and the fixed plate 35 opposite to each other are provided with matching limiting grooves 36. The length direction of the limiting grooves 36 is perpendicular to the length direction of the fixed groove 322. The ends of the rotating plate 34 and the fixed plate 35 with limiting grooves 36 can be inserted into each other. The limiting groove 36 on the side wall of the fixed plate 35 is close to the bottom of the fixed groove 322. The filter plate 33 is inserted into the mounting groove 324. The side wall of the filter plate 33 away from the partition plate 23 is flush with the bottom of the fixed groove 322. The rotating plate 34 closes the mounting square hole 323 and fixes the filter plate 33. The fixed plate 35 is slidable so that the limiting groove 36 on the side wall of the fixed plate 35 and the limiting groove 36 on the side wall of the rotating plate 34 are inserted into each other, thereby fixing the position of the rotating plate 34. The rotating plate 34 and the sliding fixed plate 35 facilitate the replacement or cleaning of the filter plate 33.

[0041] Combination Figures 1 to 4 Two preheating outlets 37 are spaced apart at the lower part of the water tank 22, away from the water pump 24. The preheating outlets 37 connect the water tank 22 to the heating chamber 222. A PLC processor 38 is installed on the outer wall of the water tank 22, which is parallel to the partition 23. The PLC processor 38 is electrically connected to the liquid level sensor 26 and the water pump 24. The PLC processor 38 receives the liquid level data of the degreasing tank body 1 and the water storage chamber 221 inside the water tank 22, which are monitored by the liquid level sensor 26. When the liquid level in the degreasing tank body 1 drops to a set threshold, water is added to the degreasing tank by the water pump 24. When the liquid level in the water storage chamber 221 drops to a set threshold, a water addition signal is issued to add industrial water to the water storage chamber 221.

[0042] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. An energy-saving device for water replenishment and preheating in an electroplating degreasing tank, characterized in that: The system includes a horizontally arranged base plate (21), a water tank (22) vertically arranged on the upper surface of the base plate (21), a water pump (24) spaced apart from the water tank (22) on the upper surface of the base plate (21), a degreasing tank body (1) arranged on the side of the water pump (24) away from the water tank (22), two partitions (23) spaced apart inside the water tank (22), the two partitions (23) divide the internal space of the water tank (22) into two heating chambers (222) and one water storage chamber (221), the two heating chambers (222) are arranged on both sides of the water storage chamber (221), the water pump (24) is connected to the water storage chamber (221) through a connecting pipe (241), and the water pump (24) can pump water into the degreasing tank body (1).

2. The energy-saving device for water replenishment and preheating of an electroplating degreasing tank according to claim 1, characterized in that: The upper part of the heating chamber (222) near the water pump (24) is separated from the water supply tank (22) and the partition plate (23) by two mutually perpendicular mounting plates (32) to form a filter chamber (321). A fixing groove (322) is provided on the outer side wall of the water supply tank (22) opposite to the filter chamber (321). The bottom of the fixing groove (322) has a mounting square hole (323) communicating with the filter chamber (321). An installation groove (324) is provided on the upper wall of the water supply tank (22) inside the filter chamber (321) and on the surface of the mounting plate (32) opposite to the upper wall of the water supply tank (22). The installation groove (324) has an opening at the bottom of the fixing groove (322). A filter plate (33) is provided inside the filter chamber (321). The filter plate (33) is adapted to the installation groove (324) and is inserted into the installation groove (324).

3. The energy-saving device for water replenishment and preheating of an electroplating degreasing tank according to claim 2, characterized in that: A rotating plate (34) is rotatably disposed inside the fixing groove (322) to seal the mounting square hole (323). The surface of the rotating plate (34) is in contact with the bottom of the fixing groove (322) to seal the mounting square hole (323).

4. The energy-saving device for water replenishment and preheating of an electroplating degreasing tank according to claim 3, characterized in that: A fixing plate (35) is slidably disposed in the fixing groove (322). The two sides of the fixing groove (322) are provided with strip-shaped sliding grooves (325). The side wall of the fixing plate (35) is provided with a sliding member (351) adapted to the sliding groove (325). The sliding member (351) is slidably disposed in the sliding groove (325). The side walls of the fixing plate (35) and the rotating plate (34) are provided with mutually adapted limiting grooves (36). The limiting groove (36) on the fixing plate (35) is close to the bottom of the fixing groove (322). The side walls of the fixing plate (35) and the rotating plate (34) with limiting grooves (36) can be inserted into each other.

5. The energy-saving device for water replenishment and preheating of an electroplating degreasing tank according to claim 1, characterized in that: Multiple heat sinks (231) are provided on the opposite surfaces of the two partitions (23). The multiple heat sinks (231) are evenly spaced along the length of the partition (23), and the surface of the heat sinks (231) is perpendicular to the surface of the partition (23).

6. The energy-saving device for water replenishment and preheating of an electroplating degreasing tank according to claim 1, characterized in that: The upper outer wall of the water supply tank (22) is provided with a water supply inlet (223) that communicates with the water storage chamber (221).

7. The energy-saving device for water replenishment and preheating of an electroplating degreasing tank according to claim 2, characterized in that: The water supply tank (22) is equipped with a Y-shaped preheating water inlet pipe (31) above the water pump (24). The two parallel ends of the preheating water inlet pipe (31) are connected to the filter chamber (321) respectively. The lower part of the water supply tank (22) away from the water pump (24) is provided with a preheating water outlet (37) that is connected to the interior of the heating chamber (222).

8. The energy-saving device for water replenishment and preheating of an electroplating degreasing tank according to claim 1, characterized in that: Liquid level sensors (26) are installed in both the water storage chamber (221) and the degreasing tank body (1). A PLC processor (38) is installed on the outer wall of the water replenishment tank (22). The PLC processor (38) is electrically connected to the liquid level sensor (26) and the water pump (24).

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