Automatic water supplementing structure for cooling water tank
The automatic water replenishment structure, featuring dual liquid level sensors and a micro-hole design, solves the problem of inaccurate water level monitoring in plastic film cooling water tanks, achieving stable water level control and improved cooling performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 石育医药制造(灵寿)有限公司
- Filing Date
- 2025-05-24
- Publication Date
- 2026-06-02
AI Technical Summary
The existing plastic film cooling water tank has inaccurate water level monitoring, resulting in large fluctuations in water level and affecting the cooling effect.
The automatic water replenishment structure, which employs dual liquid level sensors and a micro-orifice design, achieves automatic water replenishment through the upper and lower liquid level sensors in conjunction with the micro-orifice, ensuring stable water levels.
It achieves stable control of the cooling water tank level, reduces water level fluctuations, and improves the cooling effect and the timeliness and accuracy of water replenishment.
Smart Images

Figure CN224311015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water replenishment structure technology, and in particular to an automatic water replenishment structure for cooling water tanks. Background Technology
[0002] Cooling and setting is a critical step in the production of plastic film, directly affecting the film's thickness uniformity, surface smoothness, and mechanical properties. Currently, water cooling is commonly used in the industry to cool the thermoformed plastic film, and the stability of the water level in the cooling tank is a significant factor affecting the cooling effect.
[0003] Currently, there are two main methods for replenishing water levels in plastic film cooling water tanks: one is manual observation and adjustment, where operators visually assess the water level and manually adjust the replenishment valve. This method is simple and direct but lacks precision. The other is single-level sensor control, which initiates replenishment when the water level falls below a set value. However, single-level sensor control causes frequent fluctuations in the water level between high and low thresholds, affecting the cooling effect. Although this method achieves automation, it suffers from large water level fluctuations, leading to inaccurate water level monitoring. Therefore, we propose an automatic water replenishment structure for cooling water tanks to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic water replenishment structure for cooling water tanks.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An automatic water replenishment structure for a cooling water tank includes a cooling water tank, a replenishment tank, and a replenishment trough. The replenishment tank is located on one side of the cooling water tank, and the replenishment trough is installed on the top of the cooling water tank via a detachable structure. The bottom inner wall of the replenishment trough has multiple micro-holes that communicate with the cooling water tank. A replenishment pipe is arranged on the replenishment trough, and one end of the replenishment pipe extends to the bottom inner wall of the replenishment trough. A water supply mechanism is provided between the cooling water tank and the replenishment pipe. The cooling water tank is equipped with an upper liquid level sensor and a lower liquid level sensor for liquid level monitoring, and the lower liquid level sensor is located below the upper liquid level sensor.
[0007] Optionally, a horizontal plate is fixedly installed on one side of the cooling water tank, and a rectangular seat is fixedly installed at the bottom of the horizontal plate. The bottom of the rectangular seat is fixedly installed on the bottom inner wall of the cooling water tank. Two mounting seats are slidably sleeved on the rectangular seat, and the upper liquid level sensor is installed on the upper mounting seat, and the lower liquid level sensor is installed on the lower mounting seat.
[0008] By adopting the above technical solution, a stable foundation structure for installing liquid level sensors was constructed, providing reliable support for subsequent flexible adjustment of the sensor position.
[0009] Optionally, the mounting base has a rectangular hole, and the rectangular base is slidably connected to the rectangular hole. A threaded hole is provided on one inner wall of the rectangular hole, and a locking bolt for fixing the mounting base is installed in the threaded hole. The locking bolt is in contact with the rectangular base.
[0010] By adopting the above technical solution, the position of the mounting base can be conveniently adjusted and securely fixed. The monitoring height of the liquid level sensor can be flexibly set according to actual usage needs, thereby achieving the purpose of adjusting the water replenishment height as needed.
[0011] Optionally, the water supply mechanism includes a water replenishment pump and a water supply pipe. The water replenishment pump is installed on the water replenishment tank, and a water supply pipe is installed between the outlet of the water replenishment pump and the water replenishment pipe.
[0012] By adopting the above technical solution, a stable and efficient water replenishment power transmission path is formed, ensuring that the water in the water replenishment tank can be delivered to the cooling water tank in a timely and stable manner.
[0013] Optionally, a frame plate is fixedly installed on the outer side of the water replenishment tank. The frame plate can be fitted onto the cooling water tank, and a disassembly and assembly mechanism is provided between the frame plate and the cooling water tank. The disassembly and assembly mechanism includes a fixing groove, a threaded hole, and a fixing bolt. Multiple fixing grooves are opened on the outer side of the cooling water tank, and a threaded hole is opened on the inner wall of the frame plate. A fixing bolt is installed in the threaded hole, and the fixing bolt is compatible with the fixing groove.
[0014] By adopting the above technical solution, the disassembly and assembly of the water replenishment tank is simple and easy, making it convenient to clean, repair or replace the water replenishment tank later.
[0015] Optionally, an observation window is installed on the front side of the cooling water tank, and the observation window is provided with scale lines.
[0016] By adopting the above technical solution, operators can intuitively and accurately obtain the water level information in the cooling water tank without the need for other tools.
[0017] Optionally, a controller is installed on the front side of the cooling water tank, and the upper liquid level sensor, the lower liquid level sensor, and the water replenishment pump are all electrically connected to the controller.
[0018] By adopting the above technical solution, the process of replenishing water to the cooling water tank is automated, which improves the timeliness and accuracy of water replenishment and reduces manual intervention.
[0019] Optionally, the diameter of the micro-hole is set to 0.5 mm, and the distance between two adjacent micro-holes is set to 10 mm.
[0020] By adopting the above technical solution, the water flow is ensured to be evenly and stably dispersed during water replenishment, effectively avoiding interference from water flow impact on liquid level monitoring.
[0021] The beneficial effects of this utility model are:
[0022] 1. The mounting base can be fixed and unfixed by tightening the locking bolts. The position of the lower liquid level sensor and the upper liquid level sensor can be adjusted by moving the mounting base vertically.
[0023] 2. When the water level in the cooling water tank is lower than the lower level sensor, the controller can start the water replenishment pump. The water flows into the water replenishment tank through the water supply pipe and the water replenishment pipe, and flows evenly into the cooling water tank through the micro-holes. Because there are multiple micro-holes, the water replenishment flow is evenly distributed, avoiding impact on the water level. When the water level reaches the high level sensor, the controller can shut off the water replenishment pump, thereby achieving the purpose of automatically replenishing the cooling water tank.
[0024] 3. With the cooperation of fixing bolts, threaded holes and fixing grooves, the water replenishment tank can be fixed and unfixed, thereby facilitating the assembly and disassembly of the water replenishment tank. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the automatic water replenishment structure for the cooling water tank proposed in this utility model.
[0026] Figure 2 This is a cross-sectional three-dimensional structural diagram of the cooling water tank with an automatic water replenishment structure proposed in this utility model.
[0027] Figure 3 This is a schematic diagram of part A of the automatic water replenishment structure for the cooling water tank proposed in this utility model;
[0028] Figure 4 This is a top-view three-dimensional structural diagram of the water replenishment tank of the automatic water replenishment structure of the cooling water tank proposed in this utility model.
[0029] In the diagram: 101, Cooling water tank; 102, Makeup water tank; 103, Makeup water trough; 201, Micro-hole; 202, Makeup water pipe; 203, Makeup water pump; 204, Water supply pipe; 301, Horizontal plate; 302, Rectangular rod; 303, Mounting base; 304, Lower liquid level sensor; 305, Upper liquid level sensor; 401, Threaded hole one; 402, Locking bolt; 501, Frame plate; 502, Fixing groove; 503, Threaded hole two; 504, Fixing bolt; 601, Observation window; 602, Controller. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0031] This application discloses an automatic water replenishment structure for cooling water tanks.
[0032] Reference Figure 1-4 The automatic water replenishment structure for the cooling water tank includes a cooling water tank 101, a water replenishment tank 102, and a water replenishment trough 103. The water replenishment tank 102 is located on one side of the cooling water tank 101, and the water replenishment trough 103 is installed on the top of the cooling water tank 101 via a detachable structure. Multiple micro-holes 201 communicating with the cooling water tank 101 are provided on the bottom inner wall of the water replenishment trough 103. A water replenishment pipe 202 is arranged on the water replenishment trough 103, and one end of the water replenishment pipe 202 extends to the bottom inner wall of the water replenishment trough 103. A water supply mechanism is provided between the cooling water tank 101 and the water replenishment pipe 202. An upper liquid level sensor 305 and a lower liquid level sensor 304 for liquid level monitoring are provided inside the cooling water tank 101, and the lower liquid level sensor 304 is located below the upper liquid level sensor 305.
[0033] Specifically, a horizontal plate 301 is fixedly installed on one side of the cooling water tank 101, and a rectangular seat is fixedly installed at the bottom of the horizontal plate 301. The bottom of the rectangular seat is fixedly installed on the bottom inner wall of the cooling water tank 101. Two mounting seats 303 are slidably sleeved on the rectangular seat, and the upper liquid level sensor 305 is installed on the upper mounting seat 303, and the lower liquid level sensor 304 is installed on the lower mounting seat 303.
[0034] Specifically, the mounting base 303 has a rectangular hole, and the rectangular base is slidably connected to the rectangular hole. A threaded hole 401 is provided on one inner wall of the rectangular hole. A locking bolt 402 for fixing the mounting base 303 is installed in the threaded hole 401, and the locking bolt 402 is in contact with the rectangular base.
[0035] Specifically, the water supply system includes a water supply pump 203 and a water supply pipe 204. The water supply pump 203 is installed on the water supply tank 102, and the water supply pipe 204 is installed between the outlet of the water supply pump 203 and the water supply pipe 202.
[0036] Specifically, a frame plate 501 is fixedly installed on the outside of the water replenishment tank 103. The frame plate 501 can be fitted onto the cooling water tank 101, and a disassembly and assembly mechanism is provided between the frame plate 501 and the cooling water tank 101.
[0037] Specifically, the disassembly and assembly mechanism includes a fixing groove 502, a threaded hole 503, and a fixing bolt 504. Multiple fixing grooves 502 are provided on the outer side of the cooling water tank 101, and a threaded hole 503 is provided on the inner wall of the frame plate 501. A fixing bolt 504 is installed in the threaded hole 503, and the fixing bolt 504 is compatible with the fixing groove 502.
[0038] Specifically, an observation window 601 is installed on the front side of the cooling water tank 101, and the observation window 601 is equipped with scale lines.
[0039] Specifically, a controller 602 is installed on the front side of the cooling water tank 101, and the upper liquid level sensor 305, the lower liquid level sensor 304 and the water replenishment pump 203 are all electrically connected to the controller 602.
[0040] Specifically, the diameter of the micro-hole 201 is set to 0.5 mm, and the distance between two adjacent micro-holes 201 is set to 10 mm.
[0041] In this invention, by rotating the locking bolt 402, under the action of the threaded hole 401, the locking bolt 402 rotates and moves simultaneously, allowing the locking bolt 402 to make tight contact with or separate from the rectangular seat, thereby achieving the purpose of fixing and releasing the mounting base 303. By moving the mounting base 303 vertically, the positions of the lower liquid level sensor 304 and the upper liquid level sensor 305 can be adjusted. When the water level in the cooling water tank 101 is lower than that of the lower liquid level sensor, the controller 602 can start the water supply pump 203, and water flows through the water supply pipe 204 and the water replenishment pipe 205. 2. The water enters the water replenishment tank 103 and flows evenly into the cooling water tank 101 through the micro-holes 201. Due to the presence of multiple micro-holes 201, the water flow is evenly distributed, avoiding impact on the water level. When the water level reaches the high level sensor, the controller 602 can shut off the water replenishment pump 203, thereby achieving the purpose of automatically replenishing the cooling water tank 101. By rotating the fixing bolt 504, under the action of the threaded hole 503, the fixing bolt 504 can be inserted into or removed from the fixing groove 502, which can fix and release the water replenishment tank 103, thereby facilitating the disassembly and assembly of the water replenishment tank 103.
[0042] The rectangular base is a long strip-shaped member with a rectangular cross-section (corresponding to the attached...). Figure 2 Mounting base 302 (302 in the middle) is fixedly connected to the top of the horizontal plate 301 and extends vertically to the bottom inner wall of the cooling water tank 101 and is fixed thereon. The inner wall of the rectangular hole of mounting base 303 slides with the outer wall of the rectangular base to form a vertical guide structure. When it is necessary to adjust the monitoring height of the liquid level sensor, the operator can turn the locking bolt 402 counterclockwise with a wrench to disengage its end from the outer wall of the rectangular base. At this time, mounting base 303 can slide freely along the rectangular base. According to the actual capacity of the cooling water tank 101 and the water replenishment requirements, the upper liquid level sensor 305 of the upper mounting base 303 is adjusted to the target high position (e.g., 80% of the total height of the cooling water tank), and the lower liquid level sensor 304 of the lower mounting base 303 is adjusted to the target low position (e.g., 20% of the total height of the cooling water tank). After adjustment, tighten the locking bolt 402 clockwise to fix the position of mounting base 303 by the squeezing friction between the bolt end and the outer wall of the rectangular base.
[0043] The controller 602 has a built-in programmable logic control module. Its specific control logic is as follows: when the water level in the cooling water tank 101 drops to the sensing height of the lower liquid level sensor 304, the lower liquid level sensor 304 sends a low water level signal to the controller 602. The controller 602 immediately sends a start command to the water replenishment pump 203. The water replenishment pump 203 starts to operate and transports the water in the water replenishment tank 102 to the water replenishment pipe 202 through the water supply pipe 204. The water flows into the water replenishment tank 103 through the end of the water replenishment pipe 202, and then seeps into the cooling water tank 101 in the form of a thin stream through the uniformly distributed micro holes 201 at the bottom (0.5 mm in diameter, 10 mm apart), avoiding the liquid level fluctuation caused by the water flow impact caused by traditional direct pipe water replenishment. When the water level continues to rise to contact the upper liquid level sensor 305, the upper liquid level sensor 305 sends a high water level signal to the controller 602. The controller 602 then sends a stop command to the water replenishment pump 203 to terminate the water replenishment process. By using dual threshold control of upper and lower liquid level sensors, combined with the decentralized water replenishment design of micro-holes, the water level of the cooling water tank 101 can be stably controlled within the set range, solving the problem of frequent water level fluctuations caused by a single liquid level sensor in the background technology.
[0044] On the bottom inner wall of the water replenishment tank 103, micro-holes 201 are arranged in a matrix, with a horizontal and vertical spacing of 10mm. The axes of all micro-holes are perpendicular to the top plane of the cooling water tank 101, ensuring that the replenishment water flows vertically downwards into the cooling water tank 101, avoiding impact from oblique water flow on the liquid level sensor monitoring surface. When cleaning the water replenishment tank 103 is required, the operator can remove the fixing bolts 504 (corresponding to the attached...). Figure 3 (504 in the middle), so that the frame plate 501 is separated from the fixing groove 502 on the outside of the cooling water tank 101, and the water replenishment tank 103 can be lifted upward to complete the disassembly, which makes it easy to unclog the micro hole 201 or clean the inner wall of the water replenishment tank, and solves the problem of inconvenient maintenance of traditional water replenishment structures in the background technology.
[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An automatic water replenishment structure for a cooling water tank, characterized in that, It includes a cooling water tank (101), a water replenishment tank (102), and a water replenishment trough (103). The water replenishment tank (102) is located on one side of the cooling water tank (101), and the water replenishment trough (103) is installed on the top of the cooling water tank (101) by means of a detachable structure. The bottom inner wall of the water replenishment tank (103) is provided with a plurality of micro holes (201) that are connected to the cooling water tank (101). A water replenishment pipe (202) is arranged on the water replenishment tank (103), and one end of the water replenishment pipe (202) extends to the bottom inner wall of the water replenishment tank (103). A water supply mechanism is provided between the cooling water tank (101) and the water replenishment pipe (202). The cooling water tank (101) is equipped with an upper liquid level sensor (305) and a lower liquid level sensor (304) for liquid level monitoring, and the lower liquid level sensor (304) is located below the upper liquid level sensor (305).
2. The automatic water replenishment structure for the cooling water tank according to claim 1, characterized in that, A horizontal plate (301) is fixedly installed on one side of the cooling water tank (101). A rectangular seat is fixedly installed at the bottom of the horizontal plate (301). The bottom of the rectangular seat is fixedly installed on the inner wall of the bottom of the cooling water tank (101). Two mounting seats (303) are slidably sleeved on the rectangular seat. The upper liquid level sensor (305) is installed on the upper mounting seat (303), and the lower liquid level sensor (304) is installed on the lower mounting seat (303).
3. The automatic water replenishment structure for the cooling water tank according to claim 2, characterized in that, The mounting base (303) has a rectangular hole, and the rectangular base is slidably connected to the rectangular hole.
4. The automatic water replenishment structure for the cooling water tank according to claim 3, characterized in that, A threaded hole (401) is provided on one inner wall of the rectangular hole. A locking bolt (402) for fixing the mounting base (303) is installed in the threaded hole (401). The locking bolt (402) is in contact with the rectangular base.
5. The automatic water replenishment structure for the cooling water tank according to claim 1, characterized in that, The water supply mechanism includes a water replenishment pump (203) and a water supply pipe (204). The water replenishment pump (203) is installed on the water replenishment tank (102), and a water supply pipe (204) is installed between the outlet of the water replenishment pump (203) and the water replenishment pipe (202).
6. The automatic water replenishment structure for the cooling water tank according to claim 1, characterized in that, A frame plate (501) is fixedly installed on the outside of the water replenishment tank (103). The frame plate (501) can be fitted onto the cooling water tank (101), and a disassembly and assembly mechanism is provided between the frame plate (501) and the cooling water tank (101).
7. The automatic water replenishment structure for the cooling water tank according to claim 6, characterized in that, The disassembly and assembly mechanism includes a fixing groove (502), a threaded hole (503), and a fixing bolt (504). The outer side of the cooling water tank (101) is provided with multiple fixing grooves (502), and the inner wall of the frame plate (501) is provided with a threaded hole (503). The fixing bolt (504) is installed in the threaded hole (503), and the fixing bolt (504) is adapted to the fixing groove (502).
8. The automatic water replenishment structure for the cooling water tank according to claim 1, characterized in that, An observation window (601) is installed on the front side of the cooling water tank (101), and scale lines are provided on the observation window (601).
9. The automatic water replenishment structure for the cooling water tank according to claim 1, characterized in that, A controller (602) is installed on the front side of the cooling water tank (101), and the upper liquid level sensor (305), the lower liquid level sensor (304) and the water replenishment pump (203) are all electrically connected to the controller (602).
10. The automatic water replenishment structure for the cooling water tank according to claim 1, characterized in that, The diameter of the micro-hole (201) is set to 0.5 mm, and the distance between two adjacent micro-holes (201) is set to 10 mm.