A cleaning device for electrolyte lithium salt ball valve and a cleaning method thereof

Abstract

The application relates to a cleaning device of electrolyte lithium salt ball valves and a control method thereof, which comprises a V-shaped bracket, a plurality of ball valves are placed in series in the V-shaped bracket, each ball valve has two ports, two adjacent ball valves are connected through the respective ports, the plurality of ball valves in series form a series piece, and the series piece is limited by a pull rod frame; the pull rod frame comprises a left clamping flange and a right clamping flange, the series piece is clamped by the left clamping flange and the right clamping flange through a pressing device to ensure the contact sealing property between the ball valves; cleaning water sequentially passes through the left clamping flange, the ball valves and the right clamping flange and finally cleans the ball valves. The application can clean a plurality of ball valves at the same time, improves the cleaning efficiency, reduces the cleaning cost, avoids the problems of long cleaning time, large water waste and large sewage discharge.

Description

Technical Field

[0001] This invention relates to a cleaning device, and more particularly to a cleaning device and method for an electrolyte lithium salt ball valve. Background Technology

[0002] Ball valves are mainly used for shut-off in lithium hexafluorophosphate (LiPF6) salt delivery pipelines. LiPF6 salt electrolytes suffer from problems such as difficulty in feeding, poor flowability, and agglomeration.

[0003] However, ball valves generally suffer from the drawback of being inconvenient to clean: during operation, powder flows continuously within the ball, gradually accumulating in the internal gaps. When changing to a different material, the residual powder inside the ball valve needs to be thoroughly cleaned to prevent mixing. However, cleaning a typical ball valve requires complete disassembly and removal of all parts to clean the inside of the ball. Frequent disassembly can affect the valve's sealing performance, and the entire process is also wasteful of manpower and resources. Therefore, an automatic ball valve cleaning device is needed to solve the aforementioned problems.

[0004] At the same time, it aims to improve labor productivity and reduce production costs, avoiding long cleaning times, large energy waste, large sewage discharge, large material consumption, and low production efficiency. Summary of the Invention

[0005] This invention designs a cleaning device and method for electrolyte lithium salt ball valves, which solves the technical problem that powdery substances slowly accumulate in the gaps of the ball valve over a long period of time, making cleaning inconvenient.

[0006] To solve the aforementioned technical problems, the present invention adopts the following solution:

[0007] A cleaning device for electrolyte lithium salt ball valves includes a V-shaped bracket, with multiple ball valves connected in series on the V-shaped bracket. Each ball valve has two ports, and adjacent ball valves are connected through their respective ports. The multiple ball valves connected in series form a series assembly, which is defined by a tie rod frame. The tie rod frame includes a left clamping flange and a right clamping flange. The series assembly is clamped by the left and right clamping flanges through a clamping device to ensure the contact sealing between each ball valve. Cleaning water passes sequentially through the left clamping flange, each ball valve, and the right clamping flange, ultimately cleaning each ball valve.

[0008] Preferably, the clamping device includes a hydraulic cylinder and a force transmission pipe. The force transmission pipe has a T-shaped structure, with its first end connected to the left clamping flange, its second end connected to the push block connecting plate, and its third end having a pipe flange. The first end and the second end are on a straight line. Water flows through the force transmission pipe between the pipe flange and the left clamping flange. The center line of the ball valve flange coincides with the center lines of the left clamping flange, the right clamping flange, the hydraulic cylinder, and the force transmission pipe. The hydraulic cylinder acts on the push block connecting plate to make the force transmission pipe move linearly, and to make the left clamping flange and the ball valve at one end form a pressure sealing surface.

[0009] Preferably, it also includes a movable guide mechanism, which includes a vertical plate, a fixed plate, a guide block, and a sliding rod. The guide block has a through hole and is fixed to the fixed plate and / or the vertical plate. The sliding rod is directly or indirectly connected to the force transmission pipe. When the force transmission pipe moves, the sliding rod slides in the through hole of the guide block.

[0010] Preferably, the two ends of the sliding rod are connected between the left clamping flange and the push block connecting plate.

[0011] Preferably, the cleaning water has a cleaning circuit: water tank – first inlet / outlet pipe – first hose – pipe flange – force transmission pipe – left clamping flange – multiple ball valves in series – right clamping flange – second inlet / outlet pipe – water tank; the cleaning water in the water tank is circulated by a water pump, and the ball valves are flushed in the forward or reverse direction by controlling the forward or reverse flow of the cleaning water.

[0012] Preferably, the support frame below the V-shaped bracket has a water collection trough, which is connected to the input end of the water collection trough drain pipe, and the output end of the water collection trough drain pipe is connected to the water tank.

[0013] Preferably, the tie rod frame consists of multiple tie rods, a hydraulic cylinder fixing plate, and a tie rod fixing plate. The two ends of the multiple tie rods are connected to the hydraulic cylinder fixing plate and the tie rod fixing plate, respectively. The multiple tie rods form a force transmission pipe and a space for multiple ball valves. The hydraulic cylinder is installed on one side of the hydraulic cylinder fixing plate, and the hydraulic cylinder push block is located on the other side of the hydraulic cylinder fixing plate and can act on the push block connecting plate. The tie rod fixing plate has a through hole for installing a second inlet and outlet pipe, so that the second inlet and outlet pipe is connected to the ball valve at the other end.

[0014] Preferably, the hydraulic cylinder fixing plate at one end of the tie rod frame is fixed to the support frame; the tie rod fixing plate at the other end of the tie rod frame is a free end that can move.

[0015] Preferably, the device also includes a frame on which multiple sets of cleaning devices for the electrolyte lithium salt ball valves are mounted, and the multiple sets of cleaning devices for the electrolyte lithium salt ball valves are enclosed by a protective cover.

[0016] A control method for a cleaning device for an electrolyte lithium salt ball valve includes the following steps:

[0017] Step 1: The ball valves are placed in series on the stationary V-shaped bracket of the ball valves and arranged neatly.

[0018] Once a certain number of ball valves have been reached and the hydraulic cylinder's clamping stroke is deemed sufficient, the start button is pressed. The hydraulic cylinder slowly clamps the ball valves. When the pressure set by the hydraulic system is reached, the hydraulic cylinder stops advancing and maintains this pressure value to ensure the contact sealing between each ball valve and prevent water leakage during flushing. At this time, the entire cleaning circuit is in a sealed state.

[0019] The steps involve introducing a certain flow rate and pressure of cleaning water into the cleaning circuit, and repeatedly rinsing in both forward and reverse directions to achieve the recycling of rinsing water and improve the efficiency of water resource utilization. During the repeated rinsing process, the valve opening of each ball valve is adjusted to allow the cleaning water to have a better flushing effect on the residual material in the gaps inside the ball valve.

[0020] Preferably, in step 3, a flow meter Q1 is installed on the drain pipe of the water collection tank, a flow meter Q2 is installed on the first inlet and outlet pipe, and a flow meter Q3 is installed on the second inlet and outlet pipe. The numerical output terminals of the three flow meters are connected to the control unit. The control unit makes the following judgments based on the output values ​​of the three flow meters: if Q1 is greater than the preset value Q4 per unit time, it indicates that the sealing between multiple ball valves, between the left clamping flange and the ball valve at one end, or between the ball valve at the other end and the tie rod fixing plate is not good and there is leakage, and the sealing needs to be readjusted; if the amount of cleaning water input per unit time Q2 > Q1 + Q3, it indicates that there is a loss of cleaning water; when the difference between Q2 and (Q1 + Q3) is greater than the preset value Q5, it indicates that the water tank needs to be replenished.

[0021] The cleaning device and method for the electrolyte lithium salt ball valve have the following beneficial effects:

[0022] (1) This invention can clean multiple ball valves at the same time, improve cleaning efficiency and reduce cleaning costs, and avoid the problems of long cleaning time, large water waste and large sewage discharge.

[0023] (2) The cleaning circuit in this invention can realize the forward or reverse flushing of the ball valve, thereby realizing the recycling of flushing water and improving the utilization efficiency of water resources.

[0024] (3) The present invention can not only determine whether there is leakage between ball valves by using multiple flow meters in the cleaning circuit to ensure the cleaning effect, but also know whether the cleaning water is consumed and replenish the water tank in time to ensure the quality of cleaning. Attached Figure Description

[0025] Figure 1 : A schematic diagram of the external appearance of the cleaning device for the electrolyte lithium salt ball valve of the present invention;

[0026] Figure 2 The present invention provides a cleaning device for the electrolyte lithium salt ball valve with two cleaning circuits.

[0027] Figure 3 : A schematic diagram of a single-channel cleaning circuit structure of the cleaning device for the electrolyte lithium salt ball valve of the present invention;

[0028] Figure 4 : Figure 3 Schematic diagram of the clamping mechanism in a single-channel cleaning circuit;

[0029] Figure 5 : Schematic diagram of the force transmission channel connection in this invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1—Frame; 2—Hydraulic station system; 3—Water collection tank; 4—Protective cover; 5—Top-opening protective door; 6—Top-opening door handle; 7—Transparent window;

[0032] 10—Second inlet / outlet pipe; 11—Right clamping flange; 12—Ball valve; 13—Left clamping flange; 14—First hydraulic cylinder; 15—First hose; 16—First inlet / outlet pipe;

[0033] 20—Third inlet / outlet pipe; 21—Second hydraulic cylinder; 22—Second hose; 23—Fourth inlet / outlet pipe; 30—Water collection tank drain pipe;

[0034] 40—Tie rod fixing plate; 41—Tie rod; 42—Hydraulic cylinder fixing plate; 44—Hydraulic cylinder push block; 45—Push block connecting plate; 46—Force transmission pipe; 47—V-shaped bracket; 48—Limit block; 49—Support frame;

[0035] 50—Upright plate; 51—Fixed plate; 52—Guide block; 53—Sliding rod; 54—Pipe flange. Detailed Implementation

[0036] The following is combined Figures 1 to 5 The present invention will be further described as follows:

[0037] like Figure 1 As shown, a cleaning device for the electrolyte lithium salt ball valve is installed on the frame 1. The cleaning device is enclosed by an upward-opening protective door 5 to prevent water from splashing everywhere in case of leakage. The upward-opening protective door 5 is equipped with a viewing window 7 and an upward-opening door handle 6. The hydraulic station system 2 provides power for the cleaning water in the cleaning circuit, and the hydraulic station system 2 includes a water pump.

[0038] Figure 2The cleaning device for the electrolyte lithium salt ball valves includes a V-shaped bracket 47, on which multiple ball valves 12 are placed in series, ensuring the ball valves are horizontal. Each ball valve 12 has two ports, and adjacent ball valves 12 are connected through their respective ports. Multiple ball valves 12 in series form a series assembly, which is defined by a tie rod frame. The tie rod frame includes a left clamping flange 13 and a right clamping flange 11. The series assembly is clamped by the left clamping flange 13 and the right clamping flange 11 through a clamping device to ensure the contact sealing between each ball valve 12. Cleaning water passes sequentially through the left clamping flange 13, each ball valve 12, and the right clamping flange 11, ultimately cleaning each ball valve 12.

[0039] Figure 3 Two sets of cleaning devices for electrolyte lithium salt ball valves are installed on the frame 1, thus there are two cleaning circuits that can work simultaneously.

[0040] Figure 3 The cleaning devices for the two sets of electrolyte lithium salt ball valves have the same structure.

[0041] First cleaning circuit: water tank—first inlet / outlet pipe 16—first hose 15—pipe flange 54—force transmission pipe 46—left clamping flange 13—multiple ball valves in series 12—right clamping flange 11—second inlet / outlet pipe 10—water tank; the cleaning water in the water tank is circulated by a water pump, and the ball valve 12 is flushed in the forward or reverse direction by controlling the forward or reverse flow of the cleaning water.

[0042] Second cleaning circuit: water tank - fourth inlet / outlet pipe 23 - second hose 22 - pipe flange 54 - force transmission pipe 46 - left clamping flange 13 - multiple ball valves in series 12 - right clamping flange 11 - third inlet / outlet pipe 20 - water tank; the cleaning water in the water tank is circulated by a water pump, and the ball valve 12 is flushed in the forward or reverse direction by controlling the forward or reverse flow of the cleaning water.

[0043] like Figure 4 As shown, the support frame 49 below the V-shaped bracket 47 has a water collection tank 3. The water collection tank 3 is connected to the input end of the water collection tank drain pipe 30, and the output end of the water collection tank drain pipe 30 is connected to the water tank. When cleaning the ball valve, if there is a leak due to poor sealing, it can be drained by gravity.

[0044] The tie rod frame consists of four tie rods 41, a hydraulic cylinder fixing plate 42, and a tie rod fixing plate 40. The two ends of the four tie rods 41 are connected to the hydraulic cylinder fixing plate 42 and the tie rod fixing plate 40 respectively. The four tie rods 41 form a force transmission pipe 46 and a space for placing multiple ball valves 12. The hydraulic cylinder is installed on one side of the hydraulic cylinder fixing plate 42, and the hydraulic cylinder push block 44 is located on the other side of the hydraulic cylinder fixing plate 42 and can act on the push block connecting plate 45. The tie rod fixing plate 40 has a through hole for installing the second inlet and outlet pipe 10, so that the second inlet and outlet pipe 10 is connected to the ball valve 12 at the other end.

[0045] The structure of the four tie rods 41 under tension ensures that the center line of the series ball valve is in the middle of the four tie rods, and the contact surface of the ball valve 12 is subjected to uniform force.

[0046] The hydraulic cylinder fixing plate 42 at one end of the tie rod frame is fixed to the support frame 49; the tie rod fixing plate 40 at the other end of the tie rod frame is a free end that can move. Only the limiting block 48 provides slight restriction, but the tension direction of the tie rod 41 is not limited, mainly to prevent stress deformation after this end is fixed.

[0047] like Figure 5 As shown, the clamping device includes a hydraulic cylinder and a force transmission pipe 46. The force transmission pipe 46 has a T-shaped structure, with its first end connected to the left clamping flange 13, its second end connected to the push block connecting plate 45, and its third end equipped with a pipe flange 54. The first end and the second end are on a straight line. Water flows through the force transmission pipe 46 between the pipe flange 54 and the left clamping flange 13. The centerline of the ball valve flange coincides with the centerlines of the left clamping flange 13, the right clamping flange 11, the hydraulic cylinder, and the force transmission pipe 46. The hydraulic cylinder acts on the push block connecting plate 45, thereby causing the force transmission pipe 46 to move linearly, and causing the left clamping flange 13 to form a pressure sealing surface with the ball valve 12 at one end.

[0048] It also includes a movable guide mechanism, which comprises a vertical plate 50, a fixed plate 51, a guide block 52, and a sliding rod 53. The guide block 52 has a through hole and is fixed to the fixed plate 51 and / or the vertical plate 50. The sliding rod 53 is directly or indirectly connected to the force transmission pipe 46. When the force transmission pipe 46 moves, the sliding rod 53 slides in the through hole of the guide block 52. The two ends of the sliding rod 53 are connected between the left clamping flange 13 and the push block connecting plate 45.

[0049] The working principle of the cleaning device for the electrolyte lithium salt ball valve of this invention:

[0050] Step 1: Place the ball valves in series on the stationary V-shaped bracket 47 of the ball valve, and arrange them neatly;

[0051] Step 2: Once a certain number of ball valves have been used and the hydraulic cylinder's clamping stroke is satisfied, press the start button. The hydraulic cylinder will slowly clamp the ball valves 12. When the pressure set by the hydraulic system is reached, the hydraulic cylinder will stop advancing and maintain this pressure value to ensure the contact sealing between each ball valve 12 and prevent water leakage during flushing. At this time, the entire cleaning circuit is in a sealed state.

[0052] Step 3: Then, clean water with a certain flow rate and pressure is introduced into the cleaning circuit, and the water is repeatedly flushed in both forward and reverse directions to achieve the recycling of flushing water and improve the efficiency of water resource utilization. During the repeated flushing process, the valve opening of each ball valve is adjusted so that the cleaning water has a better flushing effect on the residual material in the gaps inside the ball valve.

[0053] In step 3, a flow meter Q1 is installed on the drain pipe 30 of the water collection tank, a flow meter Q2 is installed on the first inlet / outlet pipe 16, and a flow meter Q3 is installed on the second inlet / outlet pipe 10. The numerical output terminals of the three flow meters are connected to the control unit. The control unit makes the following judgment based on the output values ​​of the three flow meters: if Q1 is greater than the preset value Q4 per unit time, it indicates that the sealing between the multiple ball valves 12, between the left clamping flange 13 and the ball valve 12 at one end, or between the ball valve 12 at the other end and the tie rod fixing plate 40 is not good and there is leakage. The sealing needs to be readjusted. The control unit controls the hydraulic cylinder to gradually increase the pressure between the left clamping flange 13 and the right clamping flange 11 on the multiple ball valves 12. When Q1 is less than or equal to the preset value Q4 per unit time, it indicates that the sealing has been restored. The hydraulic cylinder stops advancing and maintains this pressure value to ensure the contact sealing between each ball valve.

[0054] If the amount of cleaning water input per unit time is greater than Q1+Q3, it indicates that there is a loss of cleaning water. When the difference between Q2 and (Q1+Q3) is greater than the preset value Q5, it indicates that the water tank needs to be replenished.

[0055] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A cleaning device for an electrolyte lithium salt ball valve, characterized in that: Includes a V-shaped bracket (47), multiple ball valves (12) are placed in series on the V-shaped bracket (47), each ball valve (12) has two ports, adjacent two ball valves (12) are connected through their respective ports, multiple ball valves (12) in series form a series member, the series member is defined by a tie rod frame; The tie rod frame includes a left clamping flange (13) and a right clamping flange (11). The tandem components are clamped by the left clamping flange (13) and the right clamping flange (11) through a clamping device to ensure contact sealing between the individual ball valves (12). The cleaning water passes sequentially through the left clamping flange (13), each ball valve (12), and the right clamping flange (11), and finally cleans each ball valve (12). The clamping device includes a hydraulic cylinder and a force transmission pipe (46). The force transmission pipe (46) has a T-shaped structure. Its first end is connected to the left clamping flange (13), its second end is connected to the push block connecting plate (45), and its third end is provided with a pipe flange (54). The first end and the second end are on the same straight line. Water flows through the force transmission pipe (46) between the pipe flange (54) and the left clamping flange (13). The center line of the ball valve flange coincides with the center lines of the left clamping flange (13), the right clamping flange (11), the hydraulic cylinder, and the force transmission pipe (46). The hydraulic cylinder acts on the push block connecting plate (45) to make the force transmission pipe (46) move linearly and make the left clamping flange (13) and the ball valve (12) at one end form a pressure sealing surface. It also includes a moving guide mechanism, which includes a vertical plate (50), a fixed plate (51), a guide block (52), and a sliding rod (53). The guide block (52) has a through hole and is fixed on the fixed plate (51) and / or the vertical plate (50). The sliding rod (53) is directly or indirectly connected to the force transmission pipe (46). When the force transmission pipe (46) moves, the sliding rod (53) slides in the through hole of the guide block (52). The two ends of the sliding rod (53) are connected between the left clamping flange (13) and the push block connecting plate (45). The cleaning water has a cleaning circuit: water tank - first inlet / outlet pipe (16) - first hose (15) - pipe flange (54) - force transmission pipe (46) - left clamping flange (13) - multiple ball valves in series (12) - right clamping flange (11) - second inlet / outlet pipe (10) - water tank; the cleaning water in the water tank is circulated by a water pump, and the ball valve (12) is flushed in the forward or reverse direction by controlling the forward or reverse flow of the cleaning water.

2. The cleaning device for the electrolyte lithium salt ball valve according to claim 1, characterized in that: The support frame (49) below the V-shaped bracket (47) has a water collection trough (3), which is connected to the input end of the water collection trough drain pipe (30), and the output end of the water collection trough drain pipe (30) is connected to the water tank.

3. The cleaning device for the electrolyte lithium salt ball valve according to claim 2, characterized in that: The tie rod frame consists of multiple tie rods (41), a hydraulic cylinder fixing plate (42), and a tie rod fixing plate (40). The two ends of the multiple tie rods (41) are connected to the hydraulic cylinder fixing plate (42) and the tie rod fixing plate (40) respectively. The multiple tie rods (41) form a force transmission pipe (46) and a space for multiple ball valves (12). The hydraulic cylinder is installed on one side of the hydraulic cylinder fixing plate (42), and the hydraulic cylinder push block (44) is located on the other side of the hydraulic cylinder fixing plate (42) and can act on the push block connecting plate (45). The tie rod fixing plate (40) has a through hole for installing the second inlet and outlet pipe (10), so that the second inlet and outlet pipe (10) is connected to the ball valve (12) at the other end.

4. The cleaning device for the electrolyte lithium salt ball valve according to claim 3, characterized in that: The hydraulic cylinder fixing plate (42) at one end of the tie rod frame is fixed on the support frame (49); the tie rod fixing plate (40) at the other end of the tie rod frame is a free end that can move.

5. The cleaning device for the electrolyte lithium salt ball valve according to claim 4, characterized in that: It also includes a frame (1), on which multiple sets of cleaning devices for the electrolyte lithium salt ball valves are installed, and the multiple sets of cleaning devices for the electrolyte lithium salt ball valves are enclosed by a protective door (5).

6. A control method for a cleaning device for an electrolyte lithium salt ball valve according to any one of claims 1-5, comprising the following steps: Step 1: The ball valves are placed in series on the stationary V-shaped bracket (47) and arranged neatly; Step 2: Once a certain number of ball valves are reached and the hydraulic cylinder's pressing stroke is satisfied, press the start button. The hydraulic cylinder slowly presses the ball valves (12). When the pressure set by the hydraulic system is reached, the hydraulic cylinder stops moving forward and maintains this pressure value to ensure the contact sealing between each ball valve (12) and prevent water leakage during flushing. At this time, the entire cleaning circuit is in a sealed state. Step 3: Then, clean water with a certain flow rate and pressure is introduced into the cleaning circuit, and the water is repeatedly flushed in both forward and reverse directions to achieve the recycling of flushing water and improve the efficiency of water resource utilization. During the repeated flushing process, the valve opening of each ball valve is adjusted so that the cleaning water has a better flushing effect on the residual material in the gaps inside the ball valve.

7. The control method of the cleaning device for the electrolyte lithium salt ball valve according to claim 6, characterized in that: In step 3, a flow meter Q1 is installed on the drain pipe (30) of the water collection tank, a flow meter Q2 is installed on the first inlet / outlet pipe (16), and a flow meter Q3 is installed on the second inlet / outlet pipe (10). The numerical output terminals of the three flow meters are connected to the control unit. The control unit makes the following judgment based on the output values ​​of the three flow meters: If Q1 is greater than the preset value Q4 within a unit time, it indicates that the sealing between multiple ball valves (12), between the left clamping flange (13) and the ball valve (12) at one end, or between the ball valve (12) at the other end and the tie rod fixing plate (40) is not good and there is leakage. The sealing needs to be readjusted. If the amount of cleaning water input per unit time Q2 > Q1 + Q3, it indicates that there is a loss of cleaning water. When the difference between Q2 and (Q1 + Q3) is greater than the preset value Q5, it indicates that the water tank needs to be replenished.

Images